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  • Title: Alpha-galactosidase production by Aspergillus oryzae in solid-state fermentation.
    Author: Shankar SK, Mulimani VH.
    Journal: Bioresour Technol; 2007 Mar; 98(4):958-61. PubMed ID: 16713256.
    Abstract:
    Comparisons were made for alpha-galactosidase production using red gram plant waste (RGPW) with wheat bran (WB) and other locally available substrates using the fungus Aspergillus oryzae under solid-state fermentation (SSF). RGPW proved to be potential substrate for alpha-galactosidase production as it gave higher enzyme titers (3.4 U/g) compared to WB (2.7 U/g) and other substrates tested. Mixing WB with RGPW (1:1, w/w) resulted enhanced alpha-galactosidase yield. The volume of moistening agent in the ratio of 1:2 (w/v), pH 5.5 and 1 ml (1 x 10(6) spores) of inoculum volume and four days incubation were optimum for alpha-galactosidase production. Increase in substrate concentration (RGPW+WB) did not decrease enzyme yield in trays.
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