Characterizing diversity based on nutritional and bioactive compositions of yam germplasm (Dioscorea spp.) commonly cultivated in China
文献类型: 外文期刊
作者: Wu, Zhi-Gang 1 ; Jiang, Wu 1 ; Nitin, Mantri 2 ; Bao, Xiao-Qing 1 ; Chen, Song-Lin 1 ; Tao, Zheng-Ming 1 ;
作者机构: 1.Zhejiang Acad Agr Sci, Zhejiang Inst Subtrop Crops, 334 Xueshan Rd, Wenzhou City 325005, Zhejiang, Peoples R China
2.RMIT Univ, Hlth Innovat Res Inst, Sch Appl Sci, Melbourne, Vic, Australia
3.Wenzhou Med Univ, Sch Pharm, Wenzhou, Peoples R China
关键词: bioactive constituents;China;diversity;nutritional compositions;yam
期刊名称:JOURNAL OF FOOD AND DRUG ANALYSIS ( 影响因子:6.079; 五年影响因子:6.36 )
ISSN: 1021-9498
年卷期: 2016 年 24 卷 2 期
页码:
收录情况: SCI
摘要: Yams (Dioscorea spp.) are widely cultivated as edible resources and medical materials in China. Characterizing chemical compositions in yam germplasm is crucial to determine their diversity and suitability for food and medicine applications. In this study, a core germplasm containing 25 yam landraces was used to create an effective classification of usage by characterizing their nutritive and medicinal compositions. All studied landraces exhibited high contents of starch from 60.7% to 80.6% dry weight (DW), protein (6.3-12.2% DW), minerals (especially Mg 326.8-544.7 mg/kg DW), and essential amino acids. Allantoin and dioscin varied considerably, with values of 0.62-1.49% DW and 0.032-0.092% DW, respectively. The quality variability of 25 yam landraces was clearly separated in light of UPGMA clustering and principal component analysis (PCA). Using an eigenvalue >= 1 as the cutoff, the first three principal components accounted for most of the total variability (62.33%). Classification was achieved based on the results of the measured parameters and principal component analysis scores. The results are of great help in determining appropriate application strategies for yam germplasm in China. Copyright (C) 2016, Food and Drug Administration, Taiwan. Published by Elsevier Taiwan LLC.
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