Isolation, screening and identification of fungi for protein enrichment of root and tuber crops
1984
Mabesa, R.C. | Villaralvo, S.A. | Melendres, R.R. (University of the Philippines at Los Banos, College, Laguna. Inst. of Food Science and Technology)
Molds growing in decaying root and tuber crops such as cassava (Manihot esculenta Crantz), sweet potato (Ipomoea batatas L.), gabi (Colocasia esculenta L. Schott), potato (Solanum tuberosum L.), and giant swamp taro (Cryptosperma chamissomis Schott Merr.) were isolated and screened for protein production. At least three promising strains from each crop were selected for identification. Isolates from cassava possess the characteristics of Aspergillus flavus, A. sulphureus, and Penicillium simplicissinum. Fungi similar to Aspergillus niger, Penicillium purpurogenum and Syncephalastrum racemosum gave the highest protein yield in sweet potato. In the case of gabi, promising isolates appeared to be A. niger, Mucor sp. and P. purpurogenum. Isolates resembling, A. niger, A. fumigatus and Mucor sp. were found to efficiently convert potato starch to protein. Fungi which appears to be A. niger, A. derreus and Monilia sp. increased the protein content of giant swamp taro substantially. Fermentation with fungi increased the original protein content of the root crops. Fungi with the highest amylolytic activity gave the highest protein yield in the product
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