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Effect of germination on the main chemical compounds and 5-methyltetrahydrofolate metabolism of different quinoa varieties

文献类型： 外文期刊

作者： He, Yanan 1 ; Song, Shuhui 2 ; Li, Cui 1 ; Zhang, Xindan 1 ; Liu, Haijie 1 ;

作者机构： 1.China Agr Univ, Coll Food Sci & Nutr Engn, Beijing 100083, Peoples R China

2.Natl Engn Res Ctr Vegetables, Beijing Vegetable Res Ctr, Beijing 100045, Peoples R China

关键词： Quinoa sprouts; Nutrient compositions; Phytochemicals; 5-Methyltetrahydrofolate; Accumulation; Gene relative expression

期刊名称：FOOD RESEARCH INTERNATIONAL （ 影响因子：7.425； 五年影响因子：7.716 ）

ISSN： 0963-9969

年卷期： 2022 年 159 卷

页码：

收录情况： SCI

摘要： This study determined the content of macronutrients and micronutrients to investigate the nutritional value and health benefits of six varieties of quinoa seeds and sprouts. Germination markedly increased the contents of proteins, reducing sugars, free amino acids, vitamins, and phytochemicals such as phenolic and carotenoid compounds, with variation among different quinoa varieties. Relatively high levels of 5-methyltetrahydrofolate (5-MTHF) were found in 6-day-old quinoa sprouts, especially in the LL-1 variety (1747.25 mu g/100 g DW), followed by QL-2 sprouts (1501.67 mu g/100 g DW). Furthermore, we examined the relative expression of genes involved in the folate biosynthetic pathway during QL-2 germination. The expression of the ADCS gene was upregulated 28.31-fold in 6-day-old sprouts, greatly facilitating folate synthesis. Pterin synthesis genes regulate the biosynthesis and further accumulation of folate by controlling pterin metabolic flux. Overall, the 6-day-old sprouts were recommended as a functional food with nutritional value and health benefits in dietary supplements.

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