高压均质处理对胡萝卜汁中原果胶结构特性和类胡萝卜素生物利用度的影响。
Effects of high pressure homogenization on pectin structural characteristics and carotenoid bioaccessibility of carrot juice.
机构信息
Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, China; College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
出版信息
Carbohydr Polym. 2019 Jan 1;203:176-184. doi: 10.1016/j.carbpol.2018.09.055. Epub 2018 Sep 25.
Effects of high pressure homogenization (HPH) on stability, water-soluble pectin (WSP) and total carotenoid bioaccessiblity (TCB) of carrot juice were investigated to reveal the feasibility of applying HPH for improving TCB and the relationships between WSP and TCB induced by HPH. Results illustrated that HPH improved the juice stability and TCB. HPH increased the uronic acid content (UAC), and decreased the degree of methoxylation (DM) and acetylation (DAc) of WSP compared to non-homogenization. However, pressure and pass showed no significant effect on UAC, DM and DAc. HPH decreased the weight-average molar mass of WSP, signifying the degradation, which was enhanced by the increasing pressure. Emulsifying activity (EA) decreased with the increasing pass and inlet temperature. Functional relationships were found between TCB and WSP characteristics (DM and EA). Lower DM and EA contributed to higher TCB. Moreover, statistical correlations were found between TCB and indicators of WSP (UAC and DAc).
高压均质处理（HPH）对胡萝卜汁稳定性、水溶性果胶（WSP）和总类胡萝卜素生物利用度（TCB）的影响，以揭示 HPH 提高 TCB 的可行性，以及 HPH 诱导 WSP 和 TCB 之间的关系。结果表明，HPH 提高了果汁的稳定性和 TCB。与非均质化相比，HPH 增加了 WSP 的糖醛酸含量（UAC），降低了 WSP 的甲氧基化程度（DM）和乙酰化程度（DAc）。然而，压力和通过次数对 UAC、DM 和 DAc 没有显著影响。HPH 降低了 WSP 的重均分子量，表明其降解程度随压力的增加而增强。乳化活性（EA）随通过次数和入口温度的增加而降低。在 TCB 与 WSP 特性（DM 和 EA）之间发现了功能关系。较低的 DM 和 EA 导致更高的 TCB。此外，在 TCB 与 WSP 指标（UAC 和 DAc）之间发现了统计相关性。
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