Patent EA-002257-B1 (EA)
Title: Gelled foodstaff for aquatic animals
Inventor: KURZINGER HUBERT
IPC: A23K40/00
Filed: 1998-08-21
Abstract: 1. A gelled foodstaff for aqiatic animals, in particular fish, prawns or invertebrates living in fresh or salt water adopted for use as a substitute for frozen foodstaff in order to feed cold-water or hot water exotic fish in fishbowls, comprising 0.001-50% of gel former, 0.1-90% of natural feed as complete animals and a water content of 20-99% by weight. 2. The gelled foodstaff according to claim 1, comprising 0.1-10% of gel former, 1-20% of natural feed as complete animals and a water content of 50-99% by weight. 3. The gelled foodstaff according to claim 1 or 2, wherein the gel former is selected from the group consisting of alkyl- and/or hydroxyalkyl-substituted cellulose ethers with 1 to 4 carbon atoms in the alkyl chain, polysaccharides, vegetable gums, collagens or mixtures thereof. 4. The gelled foodstaff according to claim 3, wherein the cellulose ether is selected from the group of methylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxyethylmethylcellulose, hydroxyethylethylcellulose or hydroxypropylmethylcellulose. 5. The gelled foodstaff according to claim 3, wherein the gel former is selected from the group of pectins, alginates, carrageenan, agar agar, guar gum, gum arabic, tragacanth, Karaya gum, ghatti gum, locust bean flour, arabian, gellan, Konjacmannan, galactomannan, funoran, sago, tara gum, xanthans, acetan, welan, rhamsan, furcelleran, succinoglycan, scleroglycan, schizophyllan, tamarind gum, curdlan, pullulan, dextran or gelatine. 6. The gelled foodstaff according to claims 1 to 3, further comprising a softener or moisture retainer. 7. The gelled foodstaff according to claim 6, wherein glycerol is used as softener. 8. The gelled foodstaff according to claims 1 to 3, wherein it contains preservation agents. 9. The gelled foodstaff according to claim 8, wherein the preservation agents are selected from the group consisting of ethoxyquin, BHT, calcium propionate, potassium sorbate, citric acid, lactic acid or salt. 10. The gelled foodstaff according to claims 1 to 9, wherein it comprises natural feed as complete animals or animal parts selected from the group consisting of saline crabs (Artemia); krill; water-fleas (Daphnia); stream flea crabs (Gammarus); sludge tubular worms (Tubifex); red midge larvae (Chironomus); white midge larvae (Chaoborus); black midge larvae (Culex); zooplankton (Cyclops); Bosmina; Mysis; shrimps; maggots; mealworms; fish roe; crab eggs; mussel meat; fish meat; cuttlefish or calf heart alone or in combinations. 11. The gelled foodstaff according to claim 10, wherein it contains additional natural raw materials. 12. The gelled foodstaff according to claim 10 or 11, wherein it contains additionally vitamins, mineral, aroma, lure, colour and/or carotenoids. 13. A process for the production of a foodstaff according to claims 1 to 12, wherein one or more natural types of foodstaff and/or commercially available feed mixtures, raw materials are mixed with one or more gel formers, and also, if necessary, with vitamins, mineral, aroma, lure, colour and carotenoids adding much amount of water in an extruder at temperatures elevated enough to produce a reaction between the gel former and water and subsequently, with cooling, the mixture is formed by means of an extruder to give cylinder-shaped sticks, granulates, cubes, plates, flakes or tablets of water content of from 20-99% by weight and these filled into glasses, tins, blister packs or, directly after the extruder, packed and subsequently cooled. 14. The process for the production of a foodstaff according to claims 1 to 12, wherein one or more natural types of foodstaff and/or commercially available feed mixtures, raw materials are mixed with one or more gel formers, and also, if necessary, with vitamins, mineral, aroma, lure, colour and carotenoids adding much amount of water in an extruder at temperatures elevated enough to produce a reaction between the gel former and water and subsequently the mixing by means of stirrers and homogenisation devices and subsequently, with cooling, the mixture is formed to give cylinder-shaped sticks, granulates, cubes, plates, flakes or tablets and these filled into glasses, tins, blister packs or packed directly and subsequently cooled.