Nutritional Quality and Antioxidant Properties of Brown and Black Lentil Sprouts
2023
Theodoros Chatzimitakos | Vassilis Athanasiadis | Ioannis Makrygiannis | Konstantina Kotsou | Dimitrios Palaiogiannis | Eleni Bozinou | Stavros I. Lalas
Lentils are known to be an integral part of a nutritionally balanced diet. Their sprouts are considered even more nutritional since they contain phytonutrients that confer health benefits. As such, incorporating them into a human diet can be advantageous. In this study, seeds from brown and black lentils were germinated aiming to study the changes in their nutritional value after they were grown for different amount of days to different lengths. Since the sprouts can be consumed at various stages of their growth, four growth stages were studied. For each stage, three batches were grown, and one sample of each batch was randomly picked and analyzed in triplicates. The sprouts were examined for their nutritional value. To this end, their content of proteins and carbohydrates was determined, as well as their content in carotenoids and vitamin C. Moreover, emphasis was placed on the phytochemical compounds contained in the sprouts. As results indicate, lentil sprouts not only exhibit high nutritional value but they are also rich in antioxidant compounds. More specifically, an increase of up to 18.8% in the protein content was recorded for 15 cm length sprouts (compared to lentil seeds), accompanied by a decrease in the carbohydrate content of up to 68.9%. Carotenoids and vitamin C content increased up to 224% and 389%, respectively. Additionally, a 34% increase in the polyphenol content was recorded. Moreover, a direct correlation between sprout length and nutritional value was observed, using principal component analysis (PCA) and multivariate correlation analysis (MCA).
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