L-ascorbic acid microencapsulated with polyacylglycerol monostearate for milk fortification.
Efficiency was examined of microencapsulating L-ascorbic acid by polyglycerol monostearate (PGMS), and changes in the chemical and sensorial aspects of L-ascorbic acid and/or iron-fortified milk during storage were evaluated. The selected core materials were ferric ammonium sulfate and L-ascorbic acid. The highest efficiency (94.2%) of microencapsulation was found with the ratio of 5:1 as the coating to core material. The release of ascorbic acid from the microcapsules increased sharply from 1.6 to 6.7% up to 5 d of storage. The TBA value was the lowest in the milk sample with added encapsulated iron and unencapsulated L-ascorbic acid up to 5 d of storage in comparison with the other treated samples. A sensory analysis showed that most aspects were not significantly different between the control and fortified samples encapsulated with ascorbic acid after 5 d of storage. The results indicate that L-ascorbic acid microencapsulated with PGMS can be applied to fortify milk and acceptable milk products can be prepared with microencapsulated L-ascorbic acid and iron.
Lee
Jun-Beum
JB
Department of Food Science and Technology, Sejong University, Seoul, Korea.
Ahn
Joungjwa
J
Lee
Jonghwi
J
Kwak
Hae-Soo
HS
D000818:Animals; D001205:Ascorbic Acid / Q000008:administration & dosage* / Q000032:analysis / Q000737:chemistry; D002214:Capsules; D005290:Ferric Compounds / Q000032:analysis / Q000737:chemistry; D005527:Food, Fortified; D005990:Glycerol / Q000031:analogs & derivatives* / Q000032:analysis / Q000737:chemistry*; D008892:Milk / Q000737:chemistry*; D050178:Monoglycerides; D013228:Stearates / Q000032:analysis / Q000737:chemistry*; D017392:Thiobarbituric Acid Reactive Substances / Q000032:analysis / Q000737:chemistry
D002214:Capsules; D005290:Ferric Compounds; D050178:Monoglycerides; D013228:Stearates; D017392:Thiobarbituric Acid Reactive Substances; C480659:polyglycerol monostearate; C049467:ammonium ferric sulfate; D005990:Glycerol; D001205:Ascorbic Acid