Effect of popping and malting on nutritional characteristics in millets
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Date
2023
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Punjab Agricultural University
Abstract
The present investigation aimed at evaluating the effect of popping and malting on nutritional characteristics in millets. Five genotypes each of sorghum, finger millet and pearl millet were analyzed after popping and malting process. The physical properties, nutritional characters, proximate analysis, bioactive components, enzymatic and antioxidant activities were observed in raw, popped and malted millet flours. The crude protein and energy were found to increase when popped and decrease after malting whereas crude fibre content significantly decreased in popped and malted flours of all millets over the raw flours. Non-significant reduction in fat content with significant hike in total soluble carbohydrates after processing of raw millets was seen. Malting resulted in increase of enzymatic activities (Lipoxygenase and alpha-amylase). Alkaloids and antioxidants (FRAP, DPPH and Ascorbic acid) increased whereas starch and amylose decreased after processing techniques compared to raw flour. Total phenols and tannins increased and reduction in antinutrients i.e. phytic acid, saponins and oxalate was seen in processed millet flours over raw. Millet genotypes showed differential protein banding pattern with lesser number of bands after processing of raw millets, however, 52 kDa band was observed in all processed millet flours. The results showed that the household processing techniques i.e. popping and malting improved the nutritional composition and antioxidant potential with simultaneously decrease in antinutritional components in all millets genotypes with pearl millet found to be slightly better and could fulfill the nutritional needs of poor community. Further, processed millet flours could be utilized in development of value added
products.
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Harsimranjeet Kaur (2023). Effect of popping and malting on nutritional characteristics in millets (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.