New insights into the rapid germination process of lentil and cowpea seeds: High thiamine and folate, and low α-galactoside content
2024
Avezum, Luiza | Madode, Yann Emeric | Mestres, Christian | Achir, Nawel | Delpech, Charlotte | Chapron, Morgane | Gibert, Olivier | Rajjou, Loïc | Rondet, Eric
During germination sensu-stricto in pulses, an increase in the content of thiamine (B1) and folate (B9) vitamins is expected, along with a reduction in α-galactoside levels. The aim of our study was to optimize germination to increase the nutritional quality of lentils and cowpeas. An experimental design was carried out at 12 h and 24 h of imbibition to analyze the effects of temperature, light, and water content on thiamine, folate, and α-galactoside content. Germination increased thiamine content by 152% in lentils, while in cowpeas, the increase was only 10%. Folate content in cowpea increased by 33%, while α-galactoside content decreased by 99% in cowpeas and by 48% in lentils. Germination sensu-stricto can be safely implemented by any food company worldwide as it is simple and involves less sanitary risk than sprouting. This opens up opportunities for enhancing food nutrient content and new ways of processing pulses.
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