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Development of nutri-functional paneer whey-based kefir drink
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Development of nutri-functional paneer whey-based kefir drink
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Journal Article
Development of nutri-functional paneer whey-based kefir drink
2025
Overview
Present research focused on biotransformation of paneer whey into a functional fermented product using kefir culture. Out of 9 formulations (S-1 to S-9) tried; S-8, obtained by fermenting FOS (1%) supplemented paneer whey and adding 8% refined sugar, was identified as the most acceptable product. Nutritional analysis revealed the following as per 100 g of product: 44.24 kcal total energy, 8.29 g carbohydrates, 7.19 g sugar, 1.51 g protein, 0.52 g total fat, 0.13 g saturated fat, 0.30 g MUFA, 0.23 g ash, 49.7 mg sodium content, 0.51% (w/w) alcohol and 4.5% (v/v) CO
2
. Results revealed a notable decline in pH and a rise in acidity during the early stages of storage followed by stabilization thereafter. Additionally a progressive decrement in lactose content and increase in ethanol was reported owing to the fermentation activity of the diverse microflora in kefir culture. The product exhibited antimicrobial as well as antioxidant activity and also remained stable for 12 days under refrigeration. Microbial stability was further strengthened by the absence of
E.coli
and consistent viable count of lactic acid bacteria and yeast in confirmation with the microbiological standards of fermented milk products. Results indicated that both proteinaceous as well as non-proteinaceous components are responsible for antioxidant activity of the product. Hence, the development of paneer whey-based kefir could relieve hassle of waste management and also provide health benefits.
Highlights
Paneer whey is generally dumped as waste that increases environmental burden.
An attempt has been made to bio-transform this waste into a functional product.
Paneer whey-based kefir drink was standardized and characterized.
Nutritional facts were validated as per requirements of the regulatory standards.
Developed product was evaluated for functional properties under in vitro conditions.
