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首页> 外文学位 >Quantification of antioxidant capacity and phytonutrients in four Quebec-grown potato cultivars.
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Quantification of antioxidant capacity and phytonutrients in four Quebec-grown potato cultivars.

机译：量化魁北克种植的四个马铃薯品种的抗氧化能力和植物营养素。

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摘要

Four Quebec-grown potato (Solanum tuberosum L.) cultivars (cvs; Chieftain, Goldrush, Russet Burbank, and Yukon Gold) were examined for selected antioxidant indices and phytonutrient content. Cultivars showed significant variation in content of antioxidant indices, total soluble protein, and 2 of 9 minerals (copper and iron), in one serving (150 g fresh weight). Total antioxidant capacity was greatest in the cvs. Goldrush (pale yellow flesh) and Russet Burbank (white flesh). Cultivar Yukon Gold (yellow flesh) showed the greatest total carotenoids and total soluble protein. Cultivar Chieftain (white flesh) had the greatest caffeic acid and ferulic acid content and was similar to cv. Russet Burbank for greatest iron content. Cultivar Goldrush showed the greatest content of total phenolics, chlorogenic and ascorbic acids and was similar to cv. Chieftain for greatest rutin content. The cultivars varied in their dietary contribution to recommended dietary allowance of ascorbic acid, copper, and iron (on a per serving basis). All cultivars met the recommended dietary allowance of selenium on a per serving basis. Periderm (skin) of cultivars contributed significantly to certain antioxidants and phytonutrients in one serving, although this contribution of skin was cultivar-dependent. Potato skin can play an important role in increasing the dietary intake of specific antioxidants and phytonutrients. Consumers are advised to eat the entire tuber, including the skin. Dietary preference of one cultivar over another could result in significantly improved dietary intake of the above reported antioxidants and phytonutrients. Combinations of cultivars could also improve the nutrient composition of the diet. Selling potatoes under cultivar names would clearly help consumers make informed choices for dietary consumption.
机译：检查了四个魁北克种植的马铃薯（Solanum tuberosum L.）品种（cvs; Chieftain，Goldrush，Russet Burbank和Yukon Gold）的选定抗氧化剂指数和植物营养素含量。一份（一份150克鲜重）的抗氧化剂指数，总可溶性蛋白质和9种矿物质（铜和铁）中的2种的含量变化很大。总抗氧化剂能力在CVS中最大。 Goldrush（淡黄色果肉）和Russet Burbank（白色果肉）。育空育空金（黄色果肉）显示出最大的总类胡萝卜素和总可溶性蛋白。品种头目（白色果肉）中咖啡酸和阿魏酸含量最高，与cv相似。 Russet Burbank具有最大的铁含量。品种Goldrush的总酚类，绿原酸和抗坏血酸含量最高，与cv相似。头目中芦丁含量最高。品种对建议的抗坏血酸，铜和铁的膳食津贴的饮食贡献各不相同（按份数计算）。所有品种均满足每份硒的建议膳食摄入量。尽管皮肤的这一贡献是依赖于品种的，但品种的皮（皮肤）在一份中对某些抗氧化剂和植物营养素的贡献显着。马铃薯皮可以在增加特定抗氧化剂和植物营养素的饮食摄入中发挥重要作用。建议消费者食用整个块茎，包括皮肤。一个品种比另一个品种在饮食上的偏爱可能导致上述抗氧化剂和植物营养素的饮食摄入量显着提高。品种的组合也可以改善饮食的营养成分。以品种名称出售马铃薯显然可以帮助消费者做出明智的饮食选择。

著录项

  • 作者

    Munshi, Shirin.;

  • 作者单位

    McGill University (Canada).;

  • 授予单位 McGill University (Canada).;
  • 学科 Health Sciences Nutrition.;Environmental Sciences.
  • 学位 M.Sc.
  • 年度 2011
  • 页码 127 p.
  • 总页数 127
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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