Effects of sun and freeze-drying techniques on molecular, fatty acid and therapeutic properties of fermented goat milk product

Journal of Food Science and Technology
Muhammad H Alu'dattSusan Brewer

Abstract

This study investigated the effect of sun drying (Sd) and freeze drying (Fd) on the chemical, nutritional and biological properties of either unsalted (Us) or salted (Sa) Jameed produced from goat milk. The products were characterized by measuring the chemical, physical and biological properties. SDS-PAGE was used to characterize the effect of processing conditions on protein subunits. Major new bands were found in SDS-PAGE of Jameed prepared by SdUs and FdUs from goat milk but not from that prepared by SdSa and FdSa. Preparation of Jameed by with or without salt treatments of Jameed by sun drying enhances the contents of short chain fatty acids. Result showed that the preparation of Jameed by SdUs decreased the content of caprylic acid. That prepared by sun drying and with or without salt increased the stability, shelf life and inhibitory activities of ACE and α-amylase. The optimum color values were found in Jameed prepared by FdSa. Different processing treatments influenced content of all fatty acids except for margaric and oleic acid.

References

May 1, 1985·Electroencephalography and Clinical Neurophysiology·G McCarthy, C C Wood
Mar 31, 2004·The Journal of Nutrition·Richard J FitzGeraldDaniel J Walsh

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