August 15, 2025AnimalsOpen Access

The Effects of Fermenting Psophocarpus tetragonolobus Tubers with Candida tropicalis KKU20 as a Soybean Meal Replacement Using an In Vitro Gas Technique

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In vitro analysis shows improved degradability in ruminants using fermented winged bean tuber, indicating a potential soybean meal substitute.

Fermentation with C. tropicalis increased crude protein in winged bean tuber by 13.32%, improving nutritional value.
At 24 and 48 hours, higher concentrate levels correlated with increased gas production, suggesting enhanced fermentability.
A 3 x 4 factorial design assessed interactions between roughage-to-concentrate ratios and fermented winged bean tuber levels.
Optimal degradability was achieved with 33% winged bean tuber in a 40:60 roughage-to-concentrate ratio, highlighting sustainability.

Surakhai et al. (2025) studied this question.

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In vitro analysis shows improved degradability in ruminants using fermented winged bean tuber, indicating a potential soybean meal substitute.