Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 68, Issue -, Pages 563-569Publisher
ELSEVIER
DOI: 10.1016/j.lwt.2016.01.009
Keywords
Anthocyanin; Nixtamalization; Blue maize and tortilla
Categories
Funding
- Universidad Autonoma de Sinaloa (Project PROFAPI), PROMEP/SEP (Project, Thematic Networks for Cooperation, food Biotechnology)
- Consejo Nacional de Ciencia y Tecnologia (CONACYT) [168279]
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Mexican blue maize (Zea mays L) grains have been poorly evaluated regarding their potential as functional food ingredients. The aims of this research were to identify and quantify anthocyanins from fifteen Mexican blue maize accessions of Elotero Sinaloa landrace recollected in the northwestern region of Mexico. Additionally, the effect of traditional nixtamalization processing on these compounds was evaluated. The acyl type anthocyanins, such as cyanidin-3-(6 ''-succinylglucoside) (Cy-Suc-Glu) and cyanidin-3-(6 ''-disuccinylglucoside) (Cy-diSuc-Glu) were the most abundant compounds in blue maize, accounting for 52.1% and 15.6% the total anthocyanins, respectively. Other predominant anthocyanins included cyanidin-3-glucoside (Cy-3-Glu), pelargonidin-3-glucoside (Pg-3-Glu), pelargonidin-3-(6 ''-malonyIglucoside) (Pg-Mal-Glu) and cyanidin-3-(6 ''-malonyglucoside) (Cy-Mal-Glu). The raw blue maize presented a similar anthocyanins profile dominated by cyanidin derivatives on (86.9% on average). Nixtamalization processing increased the relative percentage of glycosylated anthocyanins (Cy-3-Glu, and Pg-3-Glu) and decreased the acylated anthocyanins (Cy-Suc-Glu, and Cy-diSuc-Glu) when compared to raw kernels. Results obtained indicate that the studied Mexican native blue maize contained anthocyanin patterns predominated by acylated cyanide derivatives. This information could be useful to select the best pigmented maize for the derivation of food products with nutraceutical potential. (C) 2016 Elsevier Ltd. All rights reserved.
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