COLOR STABLE IRON, ZINC AND VITAMIN FORTIFIED DRY DRINK MIXES

Abstract: The present invention relates to color and flavor improvements in iron and zinc supplemented dry beverage powders having fruit and/or botanical flavor. Vitamins such as the B vitamins, vitamin A, vitamin C, and vitamin E can be added to the dry beverage mix. The supplemented dry beverage mix can also contain iodine, niacin and folic acid. In particular, methods for fortifying dry beverage mixes with certain bioavailable zinc and iron compounds without producing reconstituted beverages having undesirable color or flavor are disclosed.

Description: COLOR STABLE IRON, ZINC AND VITAMIN FORTIFIED DRY DRINK MIXES TECHNICAL FIELD The present invention relates to dry beverage mixes supplemented with iron and zinc compounds that have excellent bioavailability. The iron and zinc compounds herein do not cause an off-flavor, are stable, and overcome the problem of discoloration often caused by the addition of these minerals to beverages. The compositions may also include vitamin A, vitamin C, vitamin E, the B vitamins, folic acid and iodine. BACKGROUND OF THE INVENTION In many countries, the average diet does not contain sufficient levels of iron, zinc, iodine, vitamin A or the B vitamins. Iron deficiency is well documented. Although iron deficiency is one of the few nutritional deficiencies in the U.S., it is common in most developing countries. Recent evidence suggests that nutritional zinc deficiency may be common among the people of many developing countries where they subsist on diets of plant origin (e.g. cereal and legume). Marginal zinc deficiency may be widespread even in the U.S. because of self-imposed dietary restrictions, use of alcohol and cereal proteins, and the increasing use of refined foods which decrease the intake of trace minerals. Iron and zinc deficiencies can be overcome by taking supplements. Other methods of addressing these deficiencies include increasing the intake of foods naturally containing these minerals or fortifying food and beverage products. Usually, in countries where the people suffer from these deficiencies, the economy is such that providing minerals and vitamins as a supplement is expensive and presents significant distribution logistics problems. In addition, compliance, i.e., having the people take the vitamin and mineral supplements on a daily basis, is a serious problem. Accordingly, the delivery of iron and zinc along with other vitamins and minerals in a form that has high bioavalability and at the same time a non-objectionable taste, and in a form that would be consumed by a high proportion ofthe population at risk is desirable. Vitamin and mineral fortified beverages and foods are known. Although substantial progress has been made in reducing iron deficiency by fortifying products such as infant formulas, breakfast cereals and chocolate drink powders, the formulations require milk which is often not available or affordable. Little progress has been made to address the problem of iron and zinc deficiencies in the general population. Moreover, little attention has been paid to formulating fruit-flavored dry beverage mixes supplemented with nutritional amounts (i.e., at least 5% of the USRDI) of zinc and iron with or without vitamins. Many fruit-flavored powdered beverages contain vitamins and/or minerals but seldom contain both zinc and iron at any significant level, see for example, Composition of Foods: Beverages, Agriculture Handbook No. 8 Series, Nutrition Monitoring Division, pgs 115-153. There are well recognized problems associated with adding both vitamins and minerals to beverages. Zinc supplements tend to have an objectionable taste, cause distortion of taste and cause mouth irritation, see for example U.S. 4,684,528 to Godfrey issued August 4, 1987. Iron supplements tend to discolor foodstuff, or to be organoleptically unsuitable. Moreover, it is particularly difficult to formulate products containing minerals and, in particular, mixtures of bioavailable iron and zinc, inasmuch as these minerals tend to interact. This interaction not only affects the organoleptic and aesthetic properties of beverages, but also undesirably affects the nutritional bioavailability of the minerals themselves and the stability of vitamins and flavors. Several problems exist with delivering a mixture of iron and zinc with or without vitamins in a beverage mix. A few of the problems are choosing iron and zinc compounds which are organoleptically acceptable, bioavailable, cost effective and safe. For example, the water soluble iron and zinc compounds, which are the most bioavailable cause unacceptable metallic aftertaste and flavor changes. In addition, the soluble iron complexes often cause unacceptable color changes. Even further, the iron complexes themselves are often colored. This makes formulating a dry powder that has a uniform color distribution in the mix more difficult. Often the reconstituted beverage does not have a suitable color identifiable with the flavoring agent. If the color ofthe powder, reconstituted beverage or flavor of the beverage is substantially altered, the beverage will not be consumed. Color and taste are key to consumer acceptance. Many iron sources which have been successful commercially, have been found to be unsatisfactory for use herein. For example, U.S. patent 4,786,578 to Nakel et al. issued November 1988, relates to the use of iron-sugar complexes suitable for supplementing fruit beverages. While this supplement may produce an acceptable taste in certain fruit flavored beverages, the supplement causes discoloration and consumer detectable differences in some colored beverages. Iron sources typically used to fortify chocolate milk were also found undesirable due to color problems and/or flavor problems. It has now been found that compositions containing particular iron and zinc sources, coloring agents, a flavor component, and optionally a sweetener are very pleasant to taste and leave no undesirable aftertaste. Further, the composition has a uniform color as a powder and an acceptable color as a reconstituted beverage. The mix is provided in a manner which avoids agglomeration or caking. This free- flowing convenient form allows the consumer to simply add the desired level of the mix needed for reconstitution into the beverage form. Accordingly, an object of this invention is to provide a beverage mix supplemented with nutritional amounts of zinc and iron which is palatable and does not have a disagreeable aftertaste while preserving the bioavailability of the metal ions. Another object of the present invention is to provide dry beverage mixes which immediately upon reconstitution have an acceptable color. These and other objects will be obvious from the description herein. SUMMARY OF THE INVENTION A dry free-flowing beverage composition which when reconstitued has a desirable color and is free of undesirable aftertaste comprising: (1) from about 5% to about 100% of the USRDI of iron, wherein said iron is encapsulated ferrous sulfate or chelated iron; (2) from about 5% to about 100% of the USRDI of zinc; (3) from about 0.001 % to about 0.5% of a coloring agent; (4) from about 0.001% to about 10% of a flavoring agent wherein said flavoring agent is selected from fruit or botanical flavors, or mixtures thereof; and (5) from about 1% to about 50% citric acid, sodium citrate, tartaric acid or malic acid or mixtures thereof; or other edible acid sufficient to lower the pH to between 3 and 4.5 in the finished beverage. The dry beverage mixes of the present invention may also contain a sweetener. In addition, the dry beverage mix can contain vitamin A, vitamin C, vitamin E, vitamin Bj2 > vitamin B2, vitamin Bg, vitamin D, folic acid, iodine, thiamine, niacin, fluoride and calcium. Tannic acid may also be added for astringency. A one unit portion of the finished beverage provides from 5% to 200% ofthe USRDI for these other vitamin and mineral materials. DETAILED DESCRIPTION OF THE INVENTION As used herein, the term "comprising" means various components conjointly employed in the preparation of the dry fruit flavored beverage mix of the present invention. Accordingly, the terms "consisting essentially of and "consisting of are embodied in the term "comprising". As used herein the term "fruit flavors" refers to those flavors derived from the edible reproductive part of the seed plant, especially one having a sweet pulp associated with the seed, for example, apples, oranges, lemon, limes, etc. Also included within the term fruit flavor are synthetically prepared flavors made to simulate fruit flavors derived from natural sources. These fruit flavors can be derived from natural sources such as fruit juices and flavor oils or synthetically prepared. If desired, fruit juices, including orange, pineapple, lemon, lime, apple and grape can be used as a flavor component. As used herein, the term "botanical flavor" or "botanical extract" refers to flavors derived from parts of the plant other than the fruit. As such, botanical flavors can include those flavors derived from nuts, bark, roots and leaves. Also included within this term are synthetically prepared flavors made to simulate botanical flavors derived from natural sources. Examples of botanical flavors include hibiscus, marigold, chrysanthemum and the like. These botanical flavors can be derived from natural sources such as essential oils and extracts or be synthetically prepared. As used herein, the term "coloring agent" or "color" refers to an edible food color or materials which color the beverage such as riboflavin and/or β-carotene. As used herein, the term "total moisture" means the total water present in the dry mix that includes the water present in the flavoring agent, sugars, minerals, vitamins and other ingredients. As used herein, the terms "beverage" or "finished beverage" means the drink that is prepared by mixing the dry mixes of present invention with or without additional sweetener and an aqueous liquid. As used herein, the terms "per serving", "per unit serving" or "serving size" refers to 250 mis ofthe finished beverage. As used herein, the "reconsituted" refers to a finshed beverage prepared by mixing the requisite dry powder mix of the present invention with a sweetener and the appropriate level of diluent or by mixing the fully sweetened powder with the appropriate level of diluent. As used herein, all parts, percentages and ratios are based on weight unless otherwise specified. The dry beverage mix further comprises nutritionally supplemental amounts of vitamins and minerals. As used herein, "nutritionally supplemental amounts" are amounts of vitamins and minerals used in the dry beverage mix herein which provide a measurable nourishing amount of the minerals and vitamins. As used herein, "nutrients" refers generally to minerals and vitamins. The U.S. Recommended Daily Intake (USRDI) for vitamins and minerals are defined and set forth in the Recommended Daily Dietary Allowance-Food and Nutrition Board, National Academy of Sciences-National Research Council. A serving size of 250mls prepared by dissolving about 35 grams ofthe semi-sweetened dry beverage mix or about 125 grams of the fully sweetened dry beverage mix in one liter of water is used to calculate USRDI values herein. When no sugar is used in the dry mix, about 6 gm of dry mix will generally provide the USRDI of vitamins and minerals. As used herein, a nutritionally supplemental amount of minerals other than iron or zinc is at least about 5%, preferably from about 10% to about 200%, of the USRDI of such minerals. As used herein, a nutritionally supplemental amount of vitamins is at least about 5%, preferably from about 20% to about 200%, more preferably from about 25% to 100%, ofthe USRDI of such vitamins. It is recognized, however, that the preferred daily intake of any vitamin or mineral may vary with the user. For example, persons suffering with anemia may require an increased intake of iron. Persons suffering vitamin deficiencies or who have poor diets will require more vitamin A, vitamin C and vitamin B2, particularly growing children in developing countries. Such matters are familiar to physicians and nutritional experts, and usage of the compositions of the present invention may be adjusted accordingly. Iron Source The iron compounds which have been found useful for the purpose of the present invention are ferric sulfate encapsulated in a hydrogenated soybean oil matrix, for example., CAP-SHURE® available from Balchem Corp., Slate Hill, N.Y. and chelated iron (i.e. ferric or ferrous) wherein the chelating agents are amino acids, for example., FERROCHEL AMINO ACID CHELATE available from Albion Laboratories, Inc., Clearfield, Utah). Other solid fats can be used to encapsulate the ferric sulfate, such as, tristearin, hydrogenated corn oil, cottonseed oil, sunflower oil, tallow and lard. It has been found that these particular iron sources are bioavailable, do not cause off flavors and more importantly do not cause undesirable color changes in the reconstituted beverage. It has also been found that certain other iron sources, for example ferric saccharate, ferrous gluconate, ferrous fumarate and ferrous sulfate which is not encapsulated or chelated are not useful for this purpose. It has further been found that while improvements in the taste and final color of the beverage can be achieved by using ferric saccharate, some of the products obtained immediately after reconstitution have an objectionable color over a short time. Additionally, it has been found that although the color becomes less objectionable after several hours, there remains a consumer noticeable difference between the fortified and unfortified beverages. Therefore, it has been found that it is not possible to predict which iron sources will have an acceptable color in the reconstituted beverage unless it is prepared and tested. The amount of iron compound added to the beverage dry mix can vary widely depending upon the level of supplementation desired in the final product and the targeted consumer. The USRDI for iron generally range from 10 mg per 6 kg female or male to 18 mg per 54-58 kg female, depending somewhat on age. The iron fortified compositions of the present invention typically contain from about 5% to about 100% USRDI of iron (based per serving) to account for iron which is available from other dietary sources (assuming a reasonably balanced diet). Preferably the compositions contain from about 15% to about 50%, and most preferably about 20% to about 40% ofthe USRDI for iron. Zinc Source The zinc compounds which can be used in the present invention can be in any of the commonly used forms such as the sulfate, chloride, acetate, gluconate, ascorbate, citrate, aspartate, picolinate, amino acid chelated zinc, as well as zinc oxide. It has been found, however, because of taste reasons, that zinc gluconate and amino acid chelated zinc are particularly preferred. The zinc fortified composition of the present invention typically contain from about 5% to about 100% USRDI of zinc (based per serving) to account for that which is available from other dietary sources (assuming a reasonably balanced diet). Preferably the compositions contain from about 15% to about 50% and, preferably from about 25% to 40% of the USRDI for zinc. Other Vitamins and Minerals The dry beverage mix ofthe present invention can contain in addition to iron and zinc, other vitamins and minerals, for example vitamin C, calcium, vitamin A, vitamin C, niacin, thiamin, vitamin B6, vitamin B2, vitamin Bj2, folic acid, and iodine. Current USRDI values for most healthy adults are generally: vitamin C (60mg), vitamin A as retinol (l g) or as β-carotene (3 mg), vitamin B2 (1.7mg), niacin (20mg), thiamin (1.5mg), vitamin B (2.0mg), folic acid (0.4mg), vitamin Bj2 (6μg), and vitamin E (30 international units) and for iodine is 150μg. The USRDI for calcium will range from 360 mg per 6 kg for infants to 1200 mg per 54-58 kg female, depending somewhat on age. Moreover, it can be difficult to supplement beverages with more than 20-30% USRDI of calcium (based per serving) without encountering precipitation and or organoleptic problems. However, this level of supplementation is equivalent to that provided by cow's milk, and is therefore acceptable. Commercially available sources of vitamin C can be used herein. Encapsulated ascorbic acid and edible salts of ascorbic acid can also be used. Typically, from about 5% to about 200% of the USRDI of vitamin C is used in the dry beverage mix. Preferably from about 25% to about 150%, and most preferably about 100% ofthe USRDI for vitamin C is used in 35g ofthe dry beverage mix. Commercially available vitamin A sources can also be incorporated into the dry beverage mix. A single serving preferably contains from about 5% to about 100% and most preferably contains about 25% ofthe USRDI of vitamin A. Vitamin A can be provided, for example, as vitamin A palmitate (retinol palmitate) and/or as beta-carotene. It can be as an oil, beadlets or encapsulated. As used herein, "vitamin A" includes vitamin A, β-carotene, retinol palmitate and retinol acetate. Commercially available sources of vitamin B2 (riboflavin) can be used herein. The resulting dry beverage mix preferably contains (per serving) from about 5% to about 200% and most preferably contains from about 15% to about 35% of the USRDI of vitamin B2. Vitamin B2 is also called riboflavin. Commercial sources of iodine, preferably as an encapsulated iodine are used herein. Other sources of iodine include iodine containing salts, e.g., sodium iodide, potassium iodide, potassium iodate, sodium iodate, or mixtures thereof. These salts may be encapsulated. Nutritionally supplemental amounts of other vitamins for incorporation into the dry beverage mix include, but are not limited to, vitamins B6 and Bj2, folic acid, niacin, pantothenic acid, folic acid, and vitamins D and E. Typically, the dry beverage mix contains at least 5%, preferably at least 25%, and most preferably at least 35% ofthe USRDI for these vitamins. Other vitamins can also be incorporated into the dry beverage mix depending on the nutritional needs of the consumers to which the beverage product is directed. Nutritionally supplemental amounts of other minerals for incorporation into the dry beverage mix include, but are not limited to, calcium, and copper. Any water soluble salt of these minerals can be used, e.g., copper sulfate, copper gluconate, copper citrate. A preferred calcium source is a calcium citrate-malate composition described in U.S. Patent 4,789,510, U.S. Patent 4,786,518 and U.S. Patent 4,822,847. Calcium in the form of calcium phosphate, calcium carbonate, calcium oxide, calcium hydroxide, calcium lactate and amino acid chelated calcium can also be used. Coloring Agent The key to obtaining a uniform color in the dry beverage mix of the present invention is the incorporation of small amounts of coloring agent. FD&C dyes (e.g. yellow #5, blue #2, red # 40) and/or FD&C lakes are preferably used. By adding the lakes to the other powdered ingredients, all the particles, in particular the colored iron compound, are completely and uniformly colored and a uniformly colored beverage mix is attained. Preferred lake dyes which may be used in the present invention are the FDA-approved Lake, such as Lake red #40, yellow #6, blue #1, and the like. Additionally, a mixture of FD&C dyes or a FD&C lake dye in combination with other conventional food and food colorants may be used. However, it has been found, that when FD&C food dyes, not of the lake type are used exclusively, the color of the beverage mix is not uniform. In addition, substantial packing and caking occurs. The exact amount of coloring agent used will vary, depending on the agents used and the intensity desired in the finished product. The amount can be readily determined by one skilled in the art. Generally the coloring agent should be present at a level of from about 0.001% to about 0.5%, preferably from about 0.004% to about 0.1% by weight of the dry powder. When the beverage is lemon flavored or yellow in color, riboflavin can be used as the coloring agent, β-carotene and riboflavin both contribute to the color of orange beverages. Flavoring Agent The dry beverage mix can be flavored with any natural or synthetically prepared fruit or botanical flavors or with mixtures of botanical flavors and fruit juice blends. Suitable natural or artificial fruit flavors include lemon, orange, grapefruit, strawberry, banana, pear, kiwi, grape, apple, lemon, mango, pineapple, passion fruit, raspberry and mixtures thereof. Suitable botanical flavors include Jamaica, marigold, chrysanthemum, tea, chamomile, ginger, valerian, yohimbe, hops, eriodictyon, ginseng, bilberry, rice, red wine, mango, peony, lemon balm, nut gall, oak chip, lavender, walnut, gentiam, luo han guo, cinnamon, angelica, aloe, agrimony, yarrow and mixtures thereof. From about 0.01% to about 10% of these flavors can be used. Preferably from about 0.02% to 8% is used. Dry fruit juices can also be used as flavorants. The actual amount of flavoring agent will depend on the type of flavoring agent used and the amount of flavor desired in the finished beverage. Tannic acid or other similar acids can be used to provide an astringent taste to the beverage. From about 0.001% to about 10% tannic acid is used. Other flavor enhancers can be used. Acid Component An important component of the fruit flavor system and dry beverage mix is an edible acid which lowers the pH to less than 4.5. Preferably the pH is from 3.2 to 4.5. These acids may be used alone or in combination. Generally from about 1% to 50% citric and/or malic acid is used, preferably from about 8% to about 20%, and more preferably from about 9% to about 17% citric and/or malic acid is used. Typically a level of from about 0.01% to about 10% tannic acid, malic acid or tartaric acid and mixtures thereof are used with certain botanical flavors to impart astringency. Citric and malic acids are naturally present in fruit juices and therefore juices or dried juice powders may be used as the source of the acid or acid mixture. Other edible acids that can be used include phosphoric, acetic acid, lactic acid, and maleic acid. Sweetener The dry beverage mix of the present invention further comprises from 0% to 98% sweetener. From 10% to about 98%, more preferably from about 50% to about 90%, by weight of particulate sugar or sweetener is used. Suitable particulate sugars can be granulated or powdered, and can include sucrose, fructose, dextrose, maltose, lactose and mixtures thereof. Most preferred is sucrose. When artificial sweeteners are used, the level of sweetener is considerably lower, usually from about 0.05% to about 10% is used. Often gums, pectins and other thickeners are used with artificial sweeteners to act as bulking agents and provide texture to the reconstituted dry beverage. Mixtures of sugars and artificial sweeteners can be used. In addition to the added particulate sugar in the dry beverage mix, other natural or artificial sweeteners can also be incorporated therein. Other suitable sweeteners include saccharin, cyclamates, acesulfam-K, L-aspartyl-L-phenylalanine lower alkyl ester sweeteners (e.g. aspartame), L-aspartyl-D-alanine amides disclosed in U.S. Patent 4,411,925 to Brennan et al., L-aspartyl-D-serine amides disclosed in U.S. Patent 4,399,163 to Brennan et al., L-aspartyl-L-1-hydroxymethylalkaneamide sweeteners disclosed in U.S. Patent 4,338,346 to Brand, L-aspartyl-1- hydroxyethyalkaneamide sweeteners disclosed in U.S. Patent 4,423,029 to Rizzi, L- aspartyl-D-phenylglycine ester and amide sweeteners disclosed in European Patent Application 168,1 12 to J. M. Janusz, published January 15, 1986, and the like. A particularly preferred optional and additional sweetener is aspartame. Other ingredients The dry beverage mix can further comprise other ingredients commonly used in food or beverage products to provide flavor, aesthetics, texture, stability, anticaking or nutritional benefits. As described hereinafter, such optional other ingredients will typically be incoφorated into the beverage premix, although such ingredients can also be incoφorated individually or in various combinations into the dry beverage mix. Clouding/Thickening agent The dry beverage mix may further comprise from about 0% to about 15%, preferably from about 0.02% to about 10%, by weight of a thickening or cloud agent. Most preferably from about 1% to about 5% is used. Any known or conventional thickening and clouding agents can be used. The thickening or cloud agent can also help prevent sedimentation of the reconstituted dry beverage mix. The thickeners also help to mask bitter and astringent flavors. Any food grade thickening or cloud agent can be used in the dry beverage mix provided that it is compatible with the other essential ingredients therein. Suitable thickening or cloud agents include, but are not limited to, carboxymethylcellulose (CMC), carrageenan, xanthan, pectin, guar and various food starches (modified and unmodified), corn syrup solids and vegetable oils or partially hydrogenated vegetable oils. Selection of the thickening agent will be determined primarily by cost, and secondarily by thickening-enhancing characteristics. Mixtures of these agents can also be used. A preferred clouding/thickening agent is a mixture of from 40% to 60% corn syrup solids, 20% to 35% modified food starch, 8% to 20% partially hydrogenated soybean oil and 1% to 5% xanthan gum. Antioxidant The beverage premix may further comprise a food grade antioxidant in an amount sufficient to inhibit oxidation of materials, especially lipids, in the dry beverage mix. Excessive oxidation can contribute to off-flavor development and flavor loss. Excessive oxidation can also lead to degradation and inactivation of any ascorbic acid or other easily oxidized vitamin or minerals in the mix. Known or conventional food grade antioxidants can be used in the dry beverage mix. Such food grade antioxidants include, but are not limited to, butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), and mixtures thereof. Selection of an effective amount of a food grade antioxidant is easily determined by the skilled artisan. Limitations on such amounts or concentrations are normally subject to government regulations. To further enhance oxidative stability, the dry beverage mix should be packaged in a moisture impervious container. Such containers include, for example, foil lined packages, metal cans and plastic or laminated packages. Foil lined packages or other oxygen and water impermeable containers are preferred. The dry beverage mix can be packaged under nitrogen, carbon dioxide or other inert non¬ oxidizing gases to further enhance oxidative stability. Such packaging methods are well known in the art. Moisture content should not exceed about 6% by weight of the dry beverage mix. Dry Beverage Mix The dry beverage mix of the present invention can be diluted with water or carbonated water to form a beverage. The dry beverage mix of the present invention is a flowable particulate composition containing not more than about 6% by weight of total moisture. It is desirable to keep the total moisture level in the dry beverage mix below 6% to avoid degradation of the vitamins and other undesirable reactions. Preferably the moisture content is below about 3%, and is typically in the range of from about 4 to about 5%. A single serving size of the dry beverage mix will vary with individual consumer preference and with the specific dry beverage mix formulation. It is especially important that the product formulation delivers the desired amount of vitamins and minerals per single serving ofthe diluted beverage product. Generally, a liter ofthe beverage can be prepared by using from about 35 to about 125 grams of the dry beverage mix when sugar is used as the sweetener and about 6 gms when an artificial sweetener is used. The dry beverage mixes of the present invention may be made as a semi- sweetened powder of as a fully sweetened powder. Preparation of a flavored beverage from the semi sweetened dry beverage mix will involve mixing from about 20 grams to about 35 grams of the dry beverage mix with about 30 grams to about 85 grams of sugar in addition to a diluent (e.g., tap water). Preparation of a flavored beverage from the fully sweetened dry beverage mix will involve simply mixing from about 70 to about 125 grams of the dry beverage mix with a diluent. The diluent can be hot or cold. Typically, about 1,000 mis of diluent will be added per single serving of the dry beverage mix to form a reconstituted fruit/botanical flavored beverage. Preparation ofthe Dry Beverage Mix The dry mixes of the present invention may be prepared by a variety of means such as dry blending the ingredients, spray drying, agglomeration, drum drying and other conventional means of providing a dry mix of uniform consistency. The preferred process comprises admixing the requisite amounts of essential ingredients of the dry beverage mix described herein before. Preferably, the mixing is done using conventional plow type or paddle mixers. Preferably, the process comprises dry mixing all other ingredients except the sugar as an isolated premix and then dry mixing this isolated admixture with the sugar to form the dry beverage mix of the present invention. The particulate sugar, flavors, vitamins, minerals and encapsulated flavor are preferably admixed together to allow the fine flavor particles to adhere around the sugar particles. This will improve dispersability ofthe dry beverage mix when reconstituted with water. The physical form of the dry beverage mix can be tailored according to consumer preferences. For example, the dry beverage mix can be processed into a less dense, agglomerated mixture or left as a fine powder. A lemon flavored drink mix made from a lemon/lime combination (herein after "limon") drink mix is prepared from the following ingredients: Example 1 INGREDIENT Percent bv Weight granulated sucrose 73.9 vitamin premix 1 1 flavors^ 4.9 clouding agent 3 1.4 citric acid 12.0 zinc gluconate 0.4 ferric saccharate 0.6 sodium citrate 5.1 color 0.1 Total 100.00 Vitam in Premix 1 INGREDIENT Percent bv Weight Vitamin C 60.2 Vitamin A 4.9 Vitamin E 14.9 Vitamin B2 0.6 Vitamin B] 2 2.1 Vitamin Bg 0.6 Folic Acid 0.1 Maltodextrin 16.6 1 Vitamin Premix ^The flavor is a combination of two lemon flavors; including a lemon/lime flavor. ^The clouding agent is a mixture of corn syrup solids, modified food starch, partially hydrogenated soybean oil and xanthan gum. A limon flavored, semi-sweetened mix is prepared by dry blending all the ingredients except for the coloring agent in a mixer. The color is then added to the aforementioned dry blend followed by additional dry blending for a period of time sufficient to provide even color distribution and uniform mixture. The dry mixture is then passed through a number 20 Tyler mesh screen and then through a number 30 Tyler mesh screen. The final product is agitated and packed into cans. A sample ofthe mixture (35 gm) is blended with 1,000 ml of water followed by stirring. For comparative puφoses, dry limon flavored mixes of Example 2 and Example 3 containing the following ingredients are prepared by the aforementioned procedure. The limon flavor is a combination of two flavors. 3 The clouding agent is a mixture of corn syrup solids, modified food starch, partially hydrogenated soybean oil and xanthan gum. 4 CAP-SHURE® FS- 165-50, Balchem Coφoration, Slate Hill, New York The lemon-lime flavor is a combination of two flavors. 3 The clouding agent is a mixture of corn syrup solids, modified food starch, partially hydrogenated soybean oil and xanthan gum. 4 Ferrochel Amino Acid Chelate, Albion Laboratories, Inc., Clearfield, Utah Upon preparing beverages from the aforementioned lemon-lime dry mixes, it was observed that the beverages containing encapsulated ferrous sulfate and ferrochel amino acid chelate were similar and had an acceptable green color. Suφrisingly, the beverage containing the ferrous saccharate was discolored (i.e., muddy yellow-green). It was further observed that after about 4 - 6 hours of standing at room temperature, the beverage containing the ferric saccharate changed to a more acceptable color. Example 4 A Hunter Color Difference Meter was used to measure the degree of off- color produced by the addition of iron to the beverages prepared from the aforementioned dry mixes. Example 1 was read as prepared and then allowed to sit at room temperature for 24 hours in order to obtain a reading on the more acceptable product. The color coordinates of this color meter are L = visual lightness/darkness, a = redness-to-greenness, and b = yellowness-to-blueness. ΔL, Δa, and Δb represent differences between the L, a, and b of samples. ΔE is the total color difference. This was calculated from the equation ΔE where Lj , aj and b\ are the initial readings and L2, a2 and b2 are the readings after aging for 24 hours at 75°F (23.8°C) A ΔE reading greater the 3.0 indicates that there will be a consumer noticeable difference in these products. The results are present in Table 1. Table 1 Sample L l «1 b l 2 a 2 "2 ΔL Δa Δb ΔE No iron 28.5 -6.9 13.1 27.1 -9 14 1.96 4.41 0.81 2.68 Example 1 25.6 -3.2 12.3 25.6 -8.6 12.9 0 29.16 0.36 5.43 Example 2 28.1 -7.8 12.5 26.5 -9.8 13.3 2.56 4 0.64 2.68 Example 3 27.7 -8.3 12.2 26.2 -9.7 12.8 2.25 1.96 0.36 2.14 The data from beverages prepared according to Examples 2 and 3 showed small differences in color which are not consumer noticeable. The examples prepared using encapsulated ferrous sulfate and chelated iron were also similar in characteristics to that ofthe no iron beverage. However, the data from the beverage prepared according to Example 1 showed that it was significantly different from the other samples, and had a consumer detectable color difference after aging. For comparative puφoses, similar tests were run using orange and Jamaica beverages. It was observed that the orange and Jamaica beverages containing ferrous saccharate also developed unacceptable colors. Example 5 A fully sweetened orange flavored drink mix is prepared from the following ingredients according to the mixing procedures of Example 1. INGREDIENT Percent bv Weight granulated sucrose 90.24 vitamin premix * 0.32 orange flavor 1.27 clouding agent^ 1.4 citric acid 4.6 zinc gluconate 0.1 iron (amino acid chelate) 0.056 sodium citrate 1.9 colors^ 0.121 Total 100.00 1 Vitamin premix of Example 1 2 The clouding agent is a mixture of corn syrup solids, modified food starch, partially hydrogenated soybean oil and xanthan gum. 3 The colors are a combination of FD&C Lake Yellow #6 and FD&C dye Yellow #5. A single serving ofthe finished beverage (250 mis) providesthe following USRDI of these vitamins and minerals. Nutrient % USRDI Iron 20 Zinc 25 Vitamin A 25 Vitamin C 100 Riboflavin 35 Folic Acid 25 B12 35 Vitamin E 25 B6 25 Example 6 A semi-sweetened Jamaica flavored (derived from hibiscus) drink mix is prepared from the following ingredients according to the mixing procedures of Example 1. INGREDIENT Percent bv Weight granulated sucrose 82.2 vitamin premix 1 1.1 flavor 2.7 citric acid 8.1 tannic acid 0.27 malic acid 1 zinc gluconate 0.36 iron (amino acid chelate) 0.2 sodium citrate 3.7 colors 2 0.37 Total 100.00 1 Vitamin premix of Example 1 2 The colors are a combination of FD&C Lake red #40 and. FD&C Lake Blue #1. Other formulations are prepared using the premix of Example I by blending the following ingredients. EXAMPLE 7 A fully sweetened orange flavored drink mix is prepared from the following ingredients according to the mixing procedures of Example 1. INGREDIENT Percent bv Weight granulated sucrose 90.2 vitamin premix * 0.2 flavor 1.3 clouding agent 2 1.4 citric acid 4.8 zinc gluconate 0.1 iron (amino acid chelate) 0.1 sodium citrate 1.9 colors^ 0.1 Total 100.00 1 Vitamin premix of Example 1 The clouding agent is a mixture of corn syrup solids, modified food starch, partially hydrogenated soybean oil and xanthan gum. 3 The colors are a combination of FD&C Lake Yellow #6 and FD&C dye Yellow #5. A single serving ofthe finished beverage (250 mis) provides 10% ofthe USRDI of vitamin C, vitamin A, vitamin E, vitamin B2, folic acid, vitamin B j 2 and vitamin Bg and 25% ofthe USRDI ofthe minerals iron and zinc. EXAMPLE 8 A semi -sweetened orange flavored drink mix is prepared from the following ingredients according to the mixing procedures of Example 1. INGREDIENT Percent bv Weight granulated sucrose 64.5 vitamin premix 1 1.1 flavor 4.6 clouding agent 2 4.9 citric acid 17.1 zinc gluconate 0.3 iron (amino acid chelate) 0.2 sodium citrate 6.9 colors^ 0.4 Total 100.00 1 Vitamin premix of Example 1 The clouding agent is a mixture of corn syrup solids, modified food starch, partially hydrogenated soybean oil and xanthan gum. 3 The colors are a combination of FD&C Lake Yellow #6 and FD&C dye Yellow #5. A single serving ofthe finished beverage (250 mis) provides 50% ofthe USRDI of vitamin C, vitamin A, vitamin E, vitamin B2, folic acid, vitamin B\ and vitamin B6 and 25% ofthe USRDI ofthe minerals iron and zinc. EXAMPLE 9 A unsweetened orange flavored drink mix is prepared from the following ingredients according to the mixing procedures of Example 1. INGREDIENT Percent bv Wei ht vitamin premix 1 4.0 flavor 12.8 clouding agent 2 13.6 citric acid 47.8 zinc gluconate 1 iron (amino acid chelate) 0.6 sodium citrate 19.1 colors^ 1.2 Total 100.00 1 Vitamin premix of Example 1 2 The clouding agent is a mixture of corn syrup solids, modified food starch, partially hydrogenated soybean oil and xanthan gum. 3 The colors are a combination of FD&C Lake Yellow #6 and FD&C dye Yellow #5. A single serving ofthe finished beverage (250 mis) provides 100% ofthe USRDI of vitamin C, vitamin A, vitamin E, vitamin B2, folic acid, vitamin B12 and vitamin Bg and 25% ofthe USRDI ofthe minerals iron and zinc. It is obvious that other flavored and colored beverage mixes, e.g. mango, peach, strawberry, tangerine, and orange can be readily made by changing the coloring agent and flavoring ingredients of the mix. Accordingly, the examples given are for illustrative purposes only are not to be limiting thereof.

Claims: What is claimed is: 1. A dry free-flowing beverage composition of desirable color which is free of undesirable aftertaste characterize in that it comprises: (1) from 5% to 100%, preferably from 25% to 35%, of the USRDI for iron, wherein said iron is an amino acid chelated iron or encapsulated ferrous sulfate; (2) from 5% to 100% ofthe USRDI for zinc, preferably zinc gluconate; (3) from 0.001% to 0.05% of a coloring agent, preferably selected from the group consisting of Lake Yellow #6, Lake Red # 40, Lake Blue # 1, riboflavin, beta-carotene and mixtures thereof; (4) from 0% to 98%, preferably from 10% to 98%, sweetener, preferably sugar; (5) from 0.001% to 10%, preferably from 3% to 5%, of a flavoring agent wherein said flavoring agent is selected from fruit or botanical flavors, or mixtures thereof, preferably selected from the group consisting of Jamaica, mango, orange, lemon-lime, strawberry, peach, lemon, limon or mixtures thereof; and (6) from 1% to 50% of an edible acid, preferably selected from the group consisting of citric acid, malic acid, tartaric acid, lactic acid and mixtures thereof. 2. The dry beverage mix of Claim 1 characterized in that it further comprises from 0.02% to 3% of a thickening or clouding agent. 3. The dry beverage mix of any of Claims 1 to 2 characterized in that it comprises from 25% to 35% of the USRDI for zinc and wherein said zinc is an amino acid chelated zinc. 4. The dry beverage mix of any of Claims 1 to 3 characterized in that it further comprises: (7) from 5% to 100%, preferably from 25% to 35%, of the USRDI for vitamin A; (8) from 5% to 100% ofthe USRDI for vitamin B12; (9) from 5% to 100%, preferably from 25% to 35%, of the USRDI for vitamin Bg; (10) from 5% to 200%, preferably from 25% to 100%, of the USRDI for vitamin C; (11) from 5% to 100%, preferably from 25% to 35%, of the USRDI for vitamin B2; (12) from 5% to 100%, preferably from 25% to 35%, of the USRDI for folic acid; and (13) from 5% to 200%, preferably from 25% to 35%, of the USRDI for vitamin E. 5. The dry beverage mix of Claim 4 characterized in that it further comprises from 5% to 100% USRDI of iodine.

Inventors: FAVRE MICHEL LUCIEN HUBERT LAN, HENRY WILLIAM JOHN JR, MEHANSHO HAILE, XI XIAOBING, FAVRE, MICHEL, LUCIEN, HUBERT, LANNELONGUE, HENRY, WILLIAM, JOHN, JR., MEHANSHO, HAILE, XI, XIAOBING
Applicants: PROCTER & GAMBLE, THE PROCTER & GAMBLE COMPANY
Application year: 1996
Main classification: A23L2
IPC codes: A23L1, A23L2