کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
604559 | 880315 | 2011 | 6 صفحه PDF | دانلود رایگان |
In this work, the effects of αs-casein (αs-CN) on the pressure-induced aggregation of β-lactoglobulin (β-Lg) were studied. αs-CN depressed the pressure-induced aggregation of β-Lg, and this function was dependent on the concentration of αs-CN and the pressure holding time. Furthermore, αs-CN altered the aggregation process of β-Lg by suppressing the transition of the aggregate from the soluble phase to the insoluble phase and, as a result, the fraction of insoluble aggregates was decreased. During this process, αs-CN formed stable complexes with the denatured β-Lg and the formation of complexes prevented further aggregation of β-Lg and solubilized aggregated β-Lg to a small degree of polymerization. These results indicate that αs-CN exhibits a chaperone-like activity under high pressure, and provide an insight into the possible mechanism by which αs-CN accomplishes the task of stabilizing proteins to resist the pressure-induced aggregation of β-Lg.
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Journal: Food Hydrocolloids - Volume 25, Issue 6, August 2011, Pages 1581–1586