Fungal biodegradation of ellagitannins extracted from rambutan peel
July 29, 2023 | Food and Bioproducts Processing |
Conducted by the Autonomous University of Coahuila, Mexico, this study delves into the potential of rambutan peel as a rich source of ellagitannins, with a focus on extracting and understanding their biodegradation through solid-state fermentation (SSF). Utilizing microwave/ultrasound technology for extraction, seven ellagitannins, predominantly geraniin, were identified and characterized. In SSF, Aspergillus niger GH1, supported by polyurethane foam, exhibited enzymatic prowess, notably with ellagitannase playing a key role in the biodegradation process. Ellagic acid, a valuable by-product, saw peak accumulation at 6–12 hours, aligning with the heightened activity of ellagitannase. This research not only unveils the biotechnological potential of rambutan peel but also elucidates the enzymatic orchestration behind ellagitannin transformation, paving the way for sustainable bioprocessing applications. Read more
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