The Amendment of Standards for Speci fication, Scope, Application and 
Limitation of Food Additives  
    DOH Food No. 1011301457, 24 May 2012 
 
Appendix 2: Standards for Specification of Food Additives 
03. Antioxidants  § 03004  
Sodium L-Ascorbate 
 Chemical formula C
6H7O6Na 
Formula weight  198.11 
Composition  Not less than 99.0 % 
Description White to yellowish white crystalline powder, granules, or fine granules. It is odorless and has a slightly salty taste. 
Identification 1. Solubility: Freely soluble in water; very slightly soluble in ethanol 
2. Positive test for ascorbate 
3. Positive test for sodium 
4. A solution of the sample will decolourize a solution of 
2,6-dichlorophenolindophenol TS 
pH 6.5~8.0 (2.0 g in 20 mL water) 
Specific rotation ［α］20D：＋ 103.0°~＋108.0°(1 g in freshly boiled and 
cooled water 10 ml) 
Arsenic Not more than 4 ppm (as As
2O3) 
Heavy metals Not more than 20 ppm (as Pb) 
Loss on drying Not more than 0.25% (Vacuum  desiccator over sulfuric 
acid, 24 h) 
Category  Food additives category (3) 
Functional uses  Antioxidants 
 108. Nutritional Additives 
§ 08008 
Riboflavin (Vitamin B 2) 
 Chemical formula C
17H20O6N4 
Formula weight  376.3 7  
Composition  Not less than 98.0 % (105 ℃, 2hours) 
Description Yellow to orange-yellow crys tals or crystalline powder, 
having a slight odor. 
Specific rotation ［α］20D：-115°~-140°  
(Dry the sample at 100 ℃ for 4 hours. Dissolve 50.0 mg in 
0.05 N sodium hydroxide free fr om carbonate and dilute to 
10.0 mL with the same solv ent. Measure the optical 
rotation within 30 min of dissolution.) 
Lumiflavin Weigh 35 mg of the sample, add 10 mL of ethanol-free chloroform, shake for 5 minutes and filter. The color of the 
filtrate is not darker than that of 10 mL solution derived by adding water to 3.0 ml 0.1 N potassium dichromate to make 1,000 ml. 
Loss on drying Not more than 1.5% (105 ℃, 2hours) 
Sulfated ash  Not more than 0.3% 
Category  Food additives category (8) 
Functional uses  Nutritional Additives 
 
 2§ 08010 
Pyridoxine Hydrochloride (Vitamin B 6) 
 
Chemical formula C8H11O3N‧HCl 
Formula weight  205.64 
Composition  Not less than 98.0 %  (Vacuum  desiccator over sulfuric 
acid, 4 h) 
Description White to light yellow crystals or crystalline powder.  It is odorless. 
Heavy metals Not more than 30 ppm (as Pb) 
Loss on drying Not more than 0.5% (Vacuum de siccator over sulfuric acid, 
4 h) 
Sulfated ash  Not more than 0.1% 
Category  Food additives category (8) 
Functional uses  Nutritional Additives 
 
 3§ 08028 
Folic Acid 
 
Chemical formula C19H19O6N7 
Formula weight  441.40 
Composition  95.0~102.0 % (High-performance liquid chromatography) 
Description Yellow to orange-yellow crystalline powder.  
It is odorless. 
Water content Not more than 8.5% (Karl Fischer) 
Sulfated ash Not more than 0.5% 
Category  Food additives category (8) 
Functional uses  Nutritional Additives 
 
 
 416. Emulsifiers 
§ 16030 
Ammonium Phosphatide 
 
Definition The product consists essentially of the ammonium compounds of phosphatidic acids  derived from edible fat 
(usually partially hardened rapeseed oil). A mono- or 
diglyceride moiety may be attached to phosphorus. 
Moreover, two phosphorus esters may be linked together as 
phosphatidyl phosphatides. 
Composition The phosphorus content: 3.0~3.4% (by weight) The ammonium N content: 1.2~1.5% 
Description Unctuous semisolid 
Solubility Insoluble in water, partially soluble in ethanol and in 
acetone, soluble in fats 
Lead Not more than 2 mg/kg 
Category  Food additives category (16) 
Functional uses  Emulsifiers 
 
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