Evaluation of Proximate Composition, Cooking Quality, and Texture Profile Analysis in Himalayan Landraces of Black Gram (Vigna mungo).

Abstract

The black gram is a traditional pulse crop and is a source of different nutritional components. Due to the scientific community's preference for yield and its components, the area of nutritional composition remains unexplored. Therefore, the evaluation of various quality traits such as proximate composition, cooking quality, texture profile, and association between them is keen important for the identification of the traits influencing the selection of the genotypes. This research aimed at the evaluation of the 25 black gram genotypes for their proximate composition, the effect of different cooking methods (conventional and microwave) on cooking quality parameters, and texture profile analysis. The genotypes were screened on 17 parameters, mean and replicated value of each variable were subjected to statistical analysis. The results for proximate composition showed the range from 11.2-11.7%, 24.24-28.22%, 1.25-1.85%, 3.10-4.45%, 5.35-6.60%, 60.23-64.86% and 368.35-372.75 Kcal/100g for moisture, protein, fat, dietary fiber, ash, utilizable carbohydrate, and gross energy respectively. Cooking time ranged from 33 to 55.5min (traditional) to 29.5-48.5min (microwave), L: B ratio from 1.35 to 1.85, WUR from 1.85 to 2.60, and GSL from 0.25 to 11.30%. TPA's cohesiveness, gumminess, and chewiness ranged from 0.19 to 1.44N, 0.14-1.30N, 0.58-3.67N, 1.14-10.81N, and 0.58-5.29; 1.16-10.50N in traditional and microwave cooking. Chewiness, gumminess, protein, ash, and cooking time were positively correlated. The first seven PCs have ≥ 1 eigenvalues, accounting for 23.30, 18.00, 13.50, 9.50, 7.40, 6.70%, and 6.40% of total variability. Mandi-2, Kinnour-1, Kirmour-1, Kangra-2, Bilaspur-1, Kangra-3, Kullu-1, Kullu-4, Chamba-3, and Chamba-7 to PCs 1-2 contributed the most to diversity, indicating good selection for subsequent upgrading initiatives.