Interrelationships among seed yield, total protein and amino acid composition of ten quinoa (Chenopodium quinoa) cultivars from two different agroecological regions
| Autor: | Yotaro Konishi, Mariana Valoy, Juan A. González, Marcela Bruno, Fernando Eduardo Prado |
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| Rok vydání: | 2011 |
| Předmět: |
Bolivia
Growing region Climate Argentina Environment Biology Chenopodium quinoa Ingredient Species Specificity Dry weight parasitic diseases Humans Biomass Cultivar Essential amino acid Plant Proteins chemistry.chemical_classification Nutrition and Dietetics food and beverages Diet Amino acid chemistry Agronomy Seeds Composition (visual arts) Amino Acids Essential Dietary Proteins Edible Grain Nutritive Value Agronomy and Crop Science Food Science Biotechnology |
| Zdroj: | Journal of the Science of Food and Agriculture. 92:1222-1229 |
| ISSN: | 0022-5142 |
| DOI: | 10.1002/jsfa.4686 |
| Popis: | BACKGROUND: Quinoa is a good source of protein and can be used as a nutritional ingredient in food products. This study analyses how much growing region and/or seasonal climate might affect grain yield and nutritional quality of quinoa seeds. RESULTS: Seeds of ten quinoa cultivars from the Andean highlands (Bolivia/Argentina site) and Argentinean Northwest (Encalilla site) were analysed for seed yield, protein content and amino acid composition. Grain yields of five cultivars growing at Encalilla were higher, and four were lower, compared with data from the Bolivia/Argentina site. Protein contents ranged from 91.5 to 155.3 and from 96.2 to 154.6 g kg−1 dry mass for Encalilla and Bolivia/Argentina seeds respectively, while essential amino acid concentrations ranged from 179.9 to 357.2 and from 233.7 to 374.5 g kg−1 protein respectively. Significant positive correlations were found between the content of essential amino acids and protein percentage. CONCLUSION: It appears that there are clear variations in seed yield, total protein content and amino acid composition among cultivars from the two sites. Essential amino acid composition was more affected than grain yield and protein level. The study revealed that both environmental and climatic factors influence the nutritional composition of quinoa cultivars growing in different agroecological regions. Copyright © 2011 Society of Chemical Industry |
| Databáze: | OpenAIRE |
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