Effect of germination and fermentation process on the antioxidant compounds of quinoa seeds
2016
Carciochi, Ramiro Ariel | Galvan-d'Alessandro, Leandro | Vandendriessche, Pierre | Chollet, Sylvie | Faculty of Engineering ; Tamagawa University | Adaptation au froid du pois (AFP) ; Institut Charles Viollette (ICV) - EA 7394 (ICV) ; Université d'Artois (UA)-Institut National de la Recherche Agronomique (INRA)-Université du Littoral Côte d'Opale (ULCO)-Institut Supérieur d'Agriculture-Université de Lille-Université d'Artois (UA)-Institut National de la Recherche Agronomique (INRA)-Université du Littoral Côte d'Opale (ULCO)-Institut Supérieur d'Agriculture-Université de Lille | Institut Supérieur d'Agriculture de Lille (ISA) ; Université catholique de Lille (UCL) | Université de Lille, Sciences et Technologies | Université d'Artois (UA) | Université du Littoral Côte d'Opale (ULCO) | Institut Charles Viollette (ICV) - EA 7394 (ICV) ; Université d'Artois (UA)-Institut National de la Recherche Agronomique (INRA)-Université du Littoral Côte d'Opale (ULCO)-Institut Supérieur d'Agriculture-Université de Lille | Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET, Argentina); Eurotango II programme
Quinoa (Chenopodium quinoa) seed has gained a great interest in the last years, mainly due to its nutritional properties and its content of antioxidant substances with health-promoting properties in humans. In this work, the effect of germination time and fermentation on the levels of antioxidant compounds (ascorbic acid, tocopherol isomers and phenolic compounds) and antioxidant activity of quinoa seeds was evaluated. Fermentation was carried out naturally by the microorganisms present in the seeds or by inoculation with two Saccharomyces cerevisiae strains (used for baking and brewing). Ascorbic acid and total tocopherols were significantly increased (p aecurrency sign 0.05) after 72 h of germination process in comparison with raw quinoa seeds, whilst fermentation caused a decrease in both types of compounds. Phenolic compounds and antioxidant capacity were improved using both bioprocesses, being this effect more noticeable for germination process (101 % of increase after three days of germination). Germination and fermentation proved to be desirable procedures for producing enriched ingredients with health-promoting antioxidant compounds in a natural way.
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