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Evaluation of the impact of food matrix change on the in vitro bioaccessibility of carotenoids in pumpkin (Cucurbita moschata) slices during two drying processes

文献类型： 外文期刊

作者： Zhang, Zhongyuan 1 ; Wang, Xiaoyan 1 ; Li, Yixiang 1 ; Wei, Qiuyu 1 ; Liu, Chunju 1 ; Nie, Meimei 1 ; Li, Dajing 1 ; Xiao 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Farm Prod Proc, Nanjing 210014, Jiangsu, Peoples R China

2.Jiangnan Univ, State Key Lab Food Sci & Technol, Wuxi 214122, Peoples R China

期刊名称：FOOD & FUNCTION （ 影响因子：5.396； 五年影响因子：5.534 ）

ISSN： 2042-6496

年卷期： 2017 年 8 卷 12 期

页码：

收录情况： SCI

摘要： The food matrix is a limiting factor in determining the bioaccessibility of carotenoids. The impact of food matrix change on the bioaccessibility of carotenoids during drying processes is still unknown. The effect of intermittent microwave vacuum-assisted drying (IMVD) and hot air drying (HAD) on the in vitro liberation and micellization of carotenoids in pumpkin slices was studied. This variable depended on the changes of the matrix driven by the drying process. Different changes in the cell morphology and carotenoid distribution of pumpkin slices during the two processing methods were observed. For IMVD, cell wall degradation and complete chromoplast organelle disruption contributed to the improvement in the liberation and micellization of carotenoids. In the HAD-dried sample, large pigment aggregates hindered the liberation of carotenoids. The carotenoid level in the micellar fraction appeared to be lower than that in the aqueous supernatant during the two processes, suggesting that the new obstacles formed during processing and/or digestion hindered the incorporation of carotenoids in mixed micelles.

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