1. Variety-based physical characterization and pre-gelatinization-induced functional-rheological changes in kidney beans
- Author
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Jasjot Kaur, Rashmi Singh, Radhika Bansal, Srishti Upadhyay, Shivani Desai, Yogesh Kumar, Gourav Chakraborty, Monika Satankar, and Vijay Singh Sharanagat
- Subjects
Kidney beans ,Physical characterization ,Pre-gelatinization ,Functional-pasting properties ,FTIR analysis ,Nutrition. Foods and food supply ,TX341-641 ,Food processing and manufacture ,TP368-456 - Abstract
Abstract In the present study, three varieties of kidney beans (Red Rajma (RR), Rajma Chitra (RC), and Rajma Sharmili (RS)) were physically characterized and the effect of pre-gelatinization by microwave and hot water on functional and pasting properties of flour were studied. A significant difference was observed in the physical properties of all the kidney beans, indicating that they can be easily characterized and identified based on physical properties. Pre-gelatinization treatment led to variation in color, functional and pasting properties of flours. Color parameters L*, b*, chroma, and hue values reduced with the treatment, whereas a* and total color difference ( $$\Delta$$ Δ E) values increased. Water absorption capacity (WAC) and oil absorption capacity (OAC) varied in the range of 1.15–1.91% and 1.25–1.75% for microwave and hot water treatment, respectively. The highest value of WAC and OAC was observed for microwave-treated RC and hot water-treated RR, respectively. WAC increases with both treatments, whereas OAC increases only with water bath cooking. Functional group analysis (FTIR) showed no major peaks shifting in water bath treatment, whereas a slight deflation of certain peaks was observed in the case of microwave treatment. Pasting curves showed a significant reduction in peak and final viscosity after pre-gelatinization treatment; however, none of the samples showed any breakdown during cooking. Graphical Abstract
- Published
- 2024
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