Monika Singh

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Background: Wheat bran is an important by-product in the cereal industry. It is considered one of the amplest and most economically cheap sources of insoluble fiber and is rich in minerals and various bioactive compounds. Objective: In this research, the antioxidant, functional, and molecular properties of bran were screened in six different cultivars of wheat, viz. HUW-234, PBW-373, WH-1105, PBW-502, HD-2967, and PBW-343. Methods: In the present study, the methods, namely, DPPH, TPC, and FRAP, were used for the screening of antioxidant properties, bulk density, WAC and OAC for functional properties, and tannin, trypsin inhibitor and phytate for anti-nutritional properties. Results: Our results showed that in thermally processed wheat bran (Autoclaved, Hot air oven, Microwave, Toasting), the antioxidant activity increased in comparison to native wheat bran, whereas water absorption capacity and oil absorption capacity decreased significantly (p ≤ 0.05) compared to native bran. In addition, a significant reduction in the anti-nutritional factor was also observed. Moreover, FTIR in different wheat bran cultivars showed the presence of the C-H group, -CH stretch, -NH group, -OH group, phenols group, -C=O group, mostly aldehyde group, L-glucose, cyclodextrins, –C-OH bending vibrations, and halogen compound (C-Cl). Conclusion: The study showed differences in antioxidant and functional properties of bran obtained from different wheat cultivars. The thermal technique is a very useful treatment for increasing nutritional properties. Wheat bran utilization in daily life helps prevent many chronic diseases, such as colon cancer, constipation, heart disease, etc.

This study examined the lactulose-fortified low-calorie guava preserves. The results showed that sucrose, used as a sweetener in guava preserves, could be partially substituted by lactulose without significantly affecting the overall quality of the preserves. The physicochemical properties, antioxidant activity, and sensory evaluation of guava preserves with substitute lactulose were evaluated. The main aim of this study was to develop prebiotic guava preserves from two guava cultivars, namely, Safeda and Chittidar. The guava preserves without lactulose were used as control samples which contained 50% w/w sucrose of pulp, while lactulose-treated preserves replaced sucrose with 25%, 50%, and 75% w/w of lactulose. The finding showed that prebiotics did not significantly differ between control and treated samples. The range of ascorbic acid content of guava preserves was 98.2-102.6 mg/100g. Lactulose did not show a statistically significant effect on the level of ascorbic acid in guava preserves. The mineral content and antioxidant properties of guava preserves supplemented with lactulose were higher than those not supplemented with lactulose. The guava preserves with 50% lactulose were most accepted.