Relating genes in the biosynthesis of the polyphenol composition of Andean colored potato collection
Article first published online: 18 DEC 2013
© 2013 The Authors. Food Science & Nutrition published by Wiley Periodicals, Inc.
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Food Science & Nutrition
Volume 2, Issue 1, pages 46–57, January 2014
How to Cite
Food Science & Nutrition 2014; 2(1): 46–57
- Issue published online: 13 JAN 2014
- Article first published online: 18 DEC 2013
- Manuscript Accepted: 27 AUG 2013
- Manuscript Revised: 15 AUG 2013
- Manuscript Received: 10 MAY 2013
- Swedish International Development Agency
- Ans and stan genes;
- antioxidant capacity;
- polyphenolic compounds and purple potatoes
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.