Image analysis-based discoloration rate quantification and kinetic modeling for shelf-life prediction in herb-coated pear slices.

The present research study aimed to examine three different herb extract's effects on the discoloration rate of fresh-cut pear slices using an image analysis technique. Pear slices were sprayed and dip-coated with Ocimum basilicum, Origanum vulgare, and Camellia sinensis (0.1 g/ml) extract solution. During 15 days storage period with three days intervals, all sprayed/dip-coated pear slices were analyzed for the quality attribute (TA) and color parameters notably a*, b*, hue angle (H*), lightness (L*), and total color change (ΔE). Further, order kinetic models were used to observe the color changes and to predict the shelf-life. The results obtained showed that the applicability of image analysis helped to predict the discoloration rate, and it was better fitted to the first-order (FO) kinetic model (R2 ranging from 0.87 to 0.99). Based on the kinetic model, color features ΔE and L* was used to predict the shelf-life as they had high regression coefficient values. Thus, the findings obtained from the kinetic study demonstrated Camellia sinensis (assamica) extract spray-coated pear slices reported approximately 28.63- and 27.95-days shelf-stability without much discoloration compared with all other types of surface coating.

Beetroot Bioactive and its Associated Health Benefits: Considerations for Utilization of Beetroot in Value-added Products.

BACKGROUND: Beetroot is a remarkable source of nutrients needed for the improvement of human health. This paper presents a general overview of beetroot, its bioactive compounds, and its valorization. OBJECTIVE: The study aimed to understand and review the various beetroot bioactive compounds and their utilization in value-added products. METHODS: The findings and data provided in this review are based on the available research investigations and authorized articles. RESULT: Beetroot is a reliable source of a cluster of bioactive compounds, such as betalains, ascorbic acid, phenolic compounds, carotenoids, and nitrates, which have brought it into the spotlight for the preparation of various value-added products for daily consumption for better health. These beneficial compounds show a wide range of health benefits, such as antiinflammatory activity, anti-oxidant activity, anti-anemic activity, and cancer chemopreventive activity. CONCLUSION: This paper has reviewed the studies focused on the utilization of beetroot concerning its varied composition of nutraceutical components. This review briefly accounts for the different bioactive compound extraction methods that are immensely helpful in the food and health industries. The advantages and disadvantages of these extractions are also taken into consideration. There is a wide range of value-added products currently in the market that are generated from the addition of beetroot for the improvement of nutritional as well as sensory attributes of the final products.