TY - BOOK AU - Bullo, Lani Lee Rigor. TI - Production studies, purification,and characterization of amylolytic enzyme from saccharomycopsis fibuligera 2074 isolated from Philippine bubod starter PY - 2009/// KW - Amylases KW - Bubod yeasts KW - Amylase isolation KW - Enzyme characterization KW - Enzyme production KW - Protein purification KW - Saccharomycopsis fubuligera 2074 KW - Starch-digesting amylase KW - Hydrolysis KW - Starch KW - Undergraduate Thesis KW - FST200, KW - BSFT N1 - Thesis (BS Food Technology) -- University of the Philippines Mindanao, 2009 N2 - Saccharomycopsis fibuligera 2074 was identified to produce the highest extracellular raw starch-digesting amylase among eight amylolytic bubod isolates screened. Maximum growth and amylase production was obtained from 36-hour culture using 1% raw sago starch as the major carbon source. The enzyme was purified 2.56- fold, with a specific activity of 180.49 U/mg after DEAE-cellulose anion-exchange column chromatography. Amylase activity was optimum at pH of 6 and at 400C, Although the enzyme was inhibited by CU2+, Zn2+ and Al3+, it was activated by Ca2+, Fe3+, Ba2+, phenylmethylsulfonyl fluoride and ethylenediaminetetraacetic acid. On the other hand, iodoacetic acid K+, Cd2+, and Mg2+, showed no significant effect on amylase activity. The purified amylase showed interesting properties necessary for industrial application ER -