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Quality evaluation of oil by cold-pressed peanut from different growing regions in China

文献类型： 外文期刊

作者： Huang, Ying 1 ; Liu, Changsheng 1 ; Huang, Fenghong 1 ; Zhou, Qi 1 ; Zheng, Chang 1 ; Liu, Rui 2 ; Huang, Jiazhang 2 ;

作者机构： 1.Chinese Acad Agr Sci, Oil Crops Res Inst,Key Lab Oilseeds Proc, Oil Crops & Lipids Proc Technol Natl & Local Join, Hubei Key Lab Lipid Chem & Nutr,Minist Agr & Rura, Wuhan 430062, Peoples R China

2.Minist Agr & Rural Affairs, Inst Food & Nutr Dev, Beijing, Peoples R China

关键词： different varieties; fatty acids; growing region; nutritional characteristic; PCA; peanut oil

期刊名称：FOOD SCIENCE & NUTRITION （ 影响因子：3.553； 五年影响因子：3.634 ）

ISSN： 2048-7177

年卷期： 2022 年 10 卷 6 期

页码：

收录情况： SCI

摘要： In this study, twenty-six peanut varieties and their cold-pressed oils from eleven provinces in China were investigated for their oil content, acid value, peroxide value, fatty acid profiles, bioactive constituents, and induction period (IP) of lipid oxidation. Meanwhile, the effect of the geographical origin of peanut on the quality of cold-pressed peanut oils (CPOs) was studied. The average acid value of CPOs in southern China was higher than that in northern China (0.49 mg KOH/g versus 0.22 mg KOH/g, p > .05). In addition, the average of oleic acid content, ratio of oleic acid to linoleic acid (OIL), and IP were also higher in southern China than that in northern China (p < .05). However, the average content of campesterol, beta-sitosterol, total phytosterol, linoleic acid, and ratio of unsaturated fatty acid to saturated fatty acid (UFA/SFA) exhibited reverse results (p < .05). At last, the comprehensive evaluation of CPOs based on principal component analysis (PCA) was performed. In all samples, Silihong from Liaoning province, northern China was No.1, and Zhonghua 21 from Xiaogan City, Hubei Province was No.4 which was the first one from southern China. Moreover, heat map clustering analysis further revealed the differences and similarities among different samples, and those results were in accordance with the comprehensive evaluation results.

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