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Creator:: Carino, Lourminia Almeda
Abstract:: Substrate and inhibitor specificities have been used to classify esterases. The purpose of this work was to determine the substrate and inhibitor specificities of the esterases in an aquous extract of lyophilyzed carrots. Esterase activity was determined manometrically at 37°C. The optimum pH of the carrot esterases with several substrates...
Resource Type:: Masters Thesis
Full Text:: carboxylesterases (EC 3. 1, 1. 1). The sixth esterase was similar to arylester as e (EC 3.1,1.2). An enzyme

Creator:: Smith, Denise Myrtle
Abstract:: Using phenolic scavengers different methods were examined to determine the optimum conditions for extracting polyphenol oxidase (PPO) from d'Anjou pears. Efficiency of the extraction was evaluated based on browning of the extract, PPO activity per g of pear tissue, absorption scan of 410 nm to -240 nm, and the isozyme...
Resource Type:: Masters Thesis
Full Text:: radicals by the enzyme polyphenol oxidase (EC 1.14.8.1). The quinones produced are further oxidized and

Creator:: Wesche Ebeling, Pedro Alfredo E.
Resource Type:: Masters Thesis
Full Text:: . LITERATURE REVIEW POLYPHENOL OXIDASE The enzyme o-diphenol:oxygen oxidoreductase (EC 1.10.3.1) is also

Creator:: Wesche-Ebeling, Pedro Alfredo E.
Abstract:: Polyphenol oxidase (PPO) from strawberries was purified, partially characterized, and used to study its role in the degradation of anthocyanin pigments. The extraction method included the use of a buffered solution containing the phenolic binders Polyclar AT and Amberlite XAD-4. Addition of Triton X-100 resulted in an increase of the...
Resource Type:: Dissertation
Full Text:: Commission on Enzymes originally refered to two enzymes: laccase or _j3 -diphenol:oxygen oxidoreductase (EC

Creator:: Wissemann, Kimberly Warner
Abstract:: Polyphenol oxidase (PPO) from d'Anjou pears was purified and some molecular properties were studied. The extraction of PPO was accomplished in the presence of the phenolic binder AG 2X-8 and Triton X-100. Chlorophyll pigment was removed by chromatography resulting in a clear, colorless enzyme extract. Three fractions of pear PPO...
Resource Type:: Dissertation
Full Text:: , dihydroxyphenylalanine: oxygen oxidoreductase; EC 1.14.18.1 (Enzyme Nomenclature, 1975). One of the most interesting

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