Production of Ascorbate Free Radicals in Infant Formulas and Other Media
ABSTRACT The effects of pH on ascorbate free radical production in ascorbic acid‐supplemented cow's milk, soy‐ and milk‐based infant formulas and in aqueous ascorbic acid solutions were examined. Formula and milk components decreased ascorbate free radical concentrations. Ascorbate free radical...
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| Published in: | Journal of food science Vol. 55; no. 4; pp. 1133 - 1136 |
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| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Oxford, UK
Blackwell Publishing Ltd
01-07-1990
Wiley Subscription Services, Inc |
| Subjects: | |
| Online Access: | Get full text |
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| Summary: | ABSTRACT
The effects of pH on ascorbate free radical production in ascorbic acid‐supplemented cow's milk, soy‐ and milk‐based infant formulas and in aqueous ascorbic acid solutions were examined. Formula and milk components decreased ascorbate free radical concentrations. Ascorbate free radical levels in pepsin‐hydrolyzed soy and milk formulas were no different from those of unhydrolyzed formulas. At the phytate: iron molar ratio in the formulas, phytate decreased ascorbate free radical levels in pH 2.0 and 7.0 ascorbic acid solutions containing iron by about 35% and 50%, respectively. This antioxidant effect of phytate was not observed in soy‐based and phytate‐spiked milk‐based formulas. |
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| Bibliography: | ark:/67375/WNG-8L58LSN1-H istex:B534B656942ADD82E5770C2989BF2D093A426AD5 ArticleID:JFDS1133 The authors acknowledge the technical assistance of Stanley B. Perkins, Jr. Names of companies or commercial products are given solely for the purpose of providing specific information; mention of their name does not imply recommendation or endorsement by the U.S. Dept. of Agriculture over others not mentioned. |
| ISSN: | 0022-1147 1750-3841 |
| DOI: | 10.1111/j.1365-2621.1990.tb01616.x |