Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
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Microstructure of Fat Free Plain Set-type Yogurt Containing Folic Acid

  • Kayanush J. Aryana (Department of Dairy Science, Louisiana State University)
  • Published : 2004.09.01
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Abstract

The objective of this study was to investigate the microstructure of folic acid-contained yogurt. Folic acids (25 and 50%) were added to milk preparation prior to pasteurization, then starter culture was added. The microstructure of yogurt containing folic acid was determined by the size of cluster of casein micelle using scanning electron microscopy and transmission electron microscopy. The cluster of casein micelle in yogurt containing folic acid were showed larger size than in control (p<0.05). In addition of 50% of folic acid, cluster of casein micelle per unit area was exhibited the highest number among tested yogurts. From these results, folic acid concentration of yogurt may be affected by mouth-feel of yogurt texture as well as the aggregation of casein micelle.

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References

  1. Aryana, K. J. (2003) Folic acid fortified fat free plain set yogurt. Int. J. Dairy Technol. 56(4), 219-222 https://doi.org/10.1046/j.1471-0307.2003.00105.x
  2. Astrid, V., Alting, A. C., Visschers, R. W., and de Kruif, C. G. (2003) Texture of acid milk gels: formation of disulfide cross-links during acidification. International Dairy Journal 13(1), 29-38 https://doi.org/10.1016/S0958-6946(02)00141-3
  3. Boeneke, C. A. and Aryana. K. J. (2003) Fat free sugar free plain set yogurt fortified with folic acid. J. Dairy Sci. 86, suppl. 1 pp. 289
  4. Haque, F. and Aryana, K. J. (2002) Effect of sweeteners on the microstructure of yogurt. Food Science and Technology Research Tokyo 8, 21-23
  5. Hojou, K., Oikawa, T., Kanaya, K., Kimura, T., and Adachi, K. (1977) Some applications of ion beam sputtering to high resolution electron microscopy. Micron 8:151-159
  6. Kalab, M., Allan-Wojtas, P., and Phipps-Todd, B. (1983) Development of microstructure in set-style non fat yoghurt - A review. Food Microstructure 2, 51-66
  7. Kosikowski, F. (1982) Cheese and fermented milk foods. 2nd ed, Kosikowski, F. V., and Associates (eds.), Brookdale, NY. pp. 711