Development and Characterization of Banana Syrup from Disqualified Export-Grade Bananas
S. Bhanu Kumar *
Department of Food Processing Technology, Anand Agricultural University, Anand, Gujarat, India.
Samit Dutta
Department of Food Business Management, Anand Agricultural University, Anand, Gujarat, India.
Govind Tagalpallewar
Department of Food Processing Technology, Anand Agricultural University, Anand, Gujarat, India.
*Author to whom correspondence should be addressed.
Abstract
Banana is a highly perishable tropical fruit, and significant post-harvest losses occur due to rapid ripening and the rejection of export-grade fruits based on external morphological defects, despite their nutritional adequacy. Utilization of such disqualified bananas for value-added products can reduce food waste and improve economic returns. This study aimed to develop banana syrup from disqualified export-grade bananas and evaluate its physicochemical characteristics, sensory acceptability, and storage stability. Banana juice was extracted from ripe banana and concentrated to obtain syrup with a total soluble solids content of 75.0 ± 1.0 °Brix. The developed syrup contained 30.6 ± 1.2% moisture, 60.64 ± 1.54% carbohydrates, 1.42 ± 0.76% crude protein, 3.54 ± 0.21% crude fat, 6.0 ± 0.5% fibre, and 3.80 ± 0.56% ash. The syrup exhibited pH 4.18 ± 0.01, titratable acidity 0.783 ± 0.04% (malic acid), reducing sugars 33.89 ± 3.87 g%, and viscosity 707.0 ± 0.80 cP. Color analysis showed CIE L* 79.9 ± 0.6, a* 5.1 ± 0.5, and b* 67.9 ± 0.4, indicating a yellow appearance. Sensory evaluation using a 9-point hedonic scale revealed high overall acceptability (8.55 ± 0.37). During storage at room temperature, the syrup remained stable with no significant changes in quality parameters for 21 days (P > .05); however, fermentation signs appeared by 28 days. The results demonstrate the potential of banana syrup as a nutritious natural sweetener while providing a sustainable approach to reduce post-harvest losses.
Keywords: Post-harvest losses, value-added products, ripe banana, storage stability, sweetener