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Research Paper | Chemistry | India | Volume 9 Issue 10, October 2020 | Popularity: 6.1 / 10
Purification and Characterization of Polyphenol Oxidase from Zyzyphus spina-christi from Telangana Region
T R Satyakeerthy, T R Shanthi, Raju Bolla, Lini Nirmala
Abstract: Polyphenol oxidase (PPO) from Zyzyphus spina-christi from Telangana region was extracted and purified by (NH4) 2SO4 precipitation, ion-exchange chromatography and gel filtration chromatography. The biochemical characteristics of reveals that this PPO has higher affinity towards catechol (Km = 12.2mM and Vmax = 17, 200 U/ml min-1) at an optimum pH of 5.75. The enzyme has an optimum temperature of 37.50C and was relatively stable up to 480C for a period of 60 minutes with almost 78 % of activity remaining. Among the various polyphenol oxidase inhibitors tested, the most effective inhibitor for the enzyme with 10mM catechol as substrate was ascorbic acid.
Keywords: Polyphenol Oxidase, Zyzyphus spina-christi, Telangana, Catechol, inhibitor, Optimum
Edition: Volume 9 Issue 10, October 2020
Pages: 1072 - 1076
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