Food grade glycine
Molecular formula: C2H5NO2
Molecular weinght: 75.07
Physical-chemistry property:
White monoclinic crystal or hexagonal crystal or white crystalline powder.
Odorless,with special sweet taste.Relative density is 1.1607.melting point is 248℃.
(dissolve).pk’1(COOH)is 2.34,pk’2(N+H3
is 9.60.soluble in water , and Solubility is25℃,25g/100ml;50℃,39.1g/100ml;75℃,54.4g/100ml;
100℃,67.2g/100ml.hardly soluble in ethanol and solubility is 0.06g in 100g ethanol absolute.also hardly soluble
in acetone and diethyl ether. React with hydrochloricacid and become hydrochloride.
pH(50g/l solution,25℃)=5.5~7.0
Usage
Used as sweetener and flavoring agent.Together used with DL-aminopropionic acid and citric
in alcohol beverage,becoming saki and soft drink;used as acid
modification agentto improve food flavor,providing sweet sourcel;used as preservative for
minced fillet and peanut butter ,inhibiting breeding of hay bacillus and colon bacillus;its
amino and carboxyl have buffer function to edible salt and vinegar;used as phagostimulant
for feed additives;used as bitterremoving agent in food industy,prescription of soft drink,
and saccharin sodium salt;used as stabilizer for crerm,cheese,instant noodle,flour,lard and
so on;also used as stabilizer for vitamin of food industry.playing
an important part in preservation.
Quality specification:
1.National standard GB25542-2010
Identitfication test up to standard
Assay 98.5~101.5%
Chloride(CI) ≤0.010%
Arsenic(As) ≤0.00010%
Heavy metal(Pb) ≤0.0010%
Loss on drying ≤0.20%
Residue on ignition ≤0.10%
Clarity test clear
PH value(50g/l water solution) 5.5~7.0
2.FCC7 standard
Identification test:
Infrared Spectrum test up to standard
Assay 98.5~101.5%
Loss on drying ≤0.20%
Residue on ignition ≤0.10%
Lead(pb) ≤0.0005%
Appearance white crystalline powder
3.Standard of Japan Food Additive Manual 8th
Assay 98.5~101.5%
Chloride(CI) ≤0.021%
Arsenic(As2O3) ≤0.00040%
Heavy metal(Pb) ≤0.0020%
Loss on drying ≤0.30%
Residue on ignition ≤0.10%
Clarity test clear
PH value(50g/l water solution) 5.5~7.0
Appearance white crystalline powder