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首页> 外文期刊>International Journal of Biomedical Science >Peruvian Maca (Lepidium peruvianum): (II) Phytochemical Profiles of Four Prime Maca Phenotypes Grown in Two Geographically-Distant Locations
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Peruvian Maca (Lepidium peruvianum): (II) Phytochemical Profiles of Four Prime Maca Phenotypes Grown in Two Geographically-Distant Locations

机译：秘鲁玛卡（Lepidium peruvianum）：( II）在两个地理位置遥远的地方生长的四种主要玛卡表型的植物化学特征

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Peruvian Maca crops (Lepidium peruvianum), grown in two geographically-distant cultivation sites located at similar altitudes in the highlands of the Peruvian Andes (Junin at 4,200 m a.s.l. and Ancash 4,150 m a.s.l.), were used in the study. Four prime Maca phenotypes, distinguished by hypocotyl colours labelled as “Yellow”, “Purple”, “Red” and “Black” were selected to determine distribution in levels and corresponding ratios between individual Glucosinolates (Glucotropaeolin and m-methylglucotropaeolin) in an attempt to identify four Peruvian Maca phenotypes from analyses of powdered hypocotyls. There were highly significant differences (P0.01) in hypocotyl weight/size of four Maca phenotypes harvested in two locations. The Junin crop represented a mostly “large” class (13.3 g) with “small” size hypocotyls (7.2 g), while a “small” class was predominant in Ancash (3.5 g). Powdered Yellow Maca showed significantly higher (P0.001) microbial contamination than the other three, with Black Maca being the least infected. Only minor, statistically-confirmed differences were detected in nutritive characteristics between the four Maca phenotypes grown in Junin, however highly significant differences (P0.01) in Glucosinolates existed between the Red and Black Maca grown in Junin and Ancash. Irrespective of the cultivation location, Red phenotypes showed the highest content of Total Glucosinolates, followed by Black and Purple, with the Yellow phenotype showing consistently lower levels. Highly significant P0.01) differences determined in ratios of individual Glucosinolates between four Maca phenotypes grown in two locations, confirms an earlier assumption that sums of individual Glucosinolates, their ratios and profiles, may be feasible to explore in analytically identifying individual Maca phenotypes in pulverised marketed Maca products..
机译：该研究使用了秘鲁Maca作物（Lepidium peruvianum），该作物生长在秘鲁安第斯山脉高地（朱宁的4,200 m a.s.l.和安卡什4,150 m a.s.l.）的两个地理距离遥远的耕地上。选择四种主要的Maca表型，以标记为“黄色”，“紫色”，“红色”和“黑色”的下胚轴颜色进行区分，以确定各个葡萄糖基葡萄糖苷（葡糖四糖脂蛋白和间甲基甲基糖脂蛋白）的水平和相应比例的分布，以尝试从粉状下胚轴的分析中鉴定出四种秘鲁Maca表型。在两个位置收获的四种Maca表型的下胚轴重量/大小存在极显着差异（P <0.01）。胡宁农作物代表的主要是“大”类（13.3 g）和“小”大小的下胚轴（7.2 g），而“小”类主要是在Ancash（3.5 g）中。黄色玛卡粉显示出比其他三种显着更高的微生物污染（P <0.001），其中黑色玛卡感染最少。在朱宁种植的四种Maca表型之间，在营养特性上仅检测到很小的差异，但在朱宁和Ancash种植的红色和黑色猕猴之间的芥子油苷差异很大（P <0.01）。无论栽培地点如何，红色表型的总芥子油苷含量最高，其次是黑色和紫色，黄色表型的含量始终较低。在两个位置生长的四种Maca表型之间的各个葡糖苷的比率确定的高度显着P <0.01）差异证实了较早的假设，即单个葡糖苷的总和，它们的比率和谱图在分析确定粉碎的单个Maca表型时可能是可行的销售的Maca产品。

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