School of Chemistry Faculty of Pure and Natural Sciences, San Andrés University P.O. Box 303, La Paz, Bolivia ; Food Colloids Group Department of Food Technology, Engineering and Nutrition, Lund University P.O. Box 124, S-221 00, Lund, Sweden.
School of Chemistry Faculty of Pure and Natural Sciences, San Andrés University P.O. Box 303, La Paz, Bolivia.
Food Sci Nutr. 2014 Jan;2(1):46-57. doi: 10.1002/fsn3.69. Epub 2013 Dec 18.
The objective of this study was to evaluate total antioxidant capacity (TAC), total phenolic content (TPH), and the identification of anthocyanidin and polyphenolic compounds in 13 colored potatoes collected from the Andean region of Bolivia, and understand how the chemical composition correlated with the botanical classification and molecular characterization of genes, ans (anthocyanidin synthase) and stan1 (Solanum tuberosum anthocyanidin synthase), associated with the synthesis of anthocyanidins. The results show the existence of a limited correlation between botanical classification, based on morphological identification and polyphenol composition. No association between genetic grouping of the ans and stan genes and botanical classification was found. However, it was possible to identify a correlation between the ans gene clades and the levels of anthocyanidins as well as of other polyphenols. Thus, this result confirms the concept that potato color can be used in the search for high polyphenol potato cultivars.
本研究旨在评估来自玻利维亚安第斯地区的 13 种彩色马铃薯的总抗氧化能力 (TAC)、总酚含量 (TPH)，并鉴定花色苷和多酚类化合物，同时了解化学成分与基于形态鉴定的植物分类学和与花色苷合成相关的基因 ans（花色苷合酶）和 stan1（Solanum tuberosum anthocyanidin synthase）的分子特征之间的相关性。结果表明，基于形态鉴定和多酚组成的植物分类学之间存在一定的相关性。ans 和 stan 基因的遗传分组与植物分类学之间没有发现关联。然而，ans 基因进化枝与花色苷水平以及其他多酚类物质之间的相关性是可以识别的。因此，这一结果证实了这样一种概念，即马铃薯的颜色可用于寻找高多酚类马铃薯品种。
