The partial purification and characterization of polyphenol oxidase from hawthorn (crataegus monogyna)
نویسندگان
چکیده
منابع مشابه
Effect of Anti Browning Agents on Partial Purified Polyphenol Oxidase of Hawthorn (Crataegus Spp
Objective: Polyphenol oxidase or PPO (EC 1.14.18.1) is considered the enzyme responsible for quality deterioration and browning in different fruits during postharvest period. The objective of this study was to evaluate the antibrowning (inhibition of polyphenol oxidase activity) effect of Cysteine, Ascorbic acid, citric acid, kojic acid and glycine at two different pH (6 and 7) in hawthorn. Me...
متن کاملEffect of Anti Browning Agents on Partial Purified Polyphenol Oxidase of Hawthorn (Crataegus Spp
Objective: Polyphenol oxidase or PPO (EC 1.14.18.1) is considered the enzyme responsible for quality deterioration and browning in different fruits during postharvest period. The objective of this study was to evaluate the antibrowning (inhibition of polyphenol oxidase activity) effect of Cysteine, Ascorbic acid, citric acid, kojic acid and glycine at two different pH (6 and 7) in hawthorn. Me...
متن کاملHawthorn (crataegus Monogyna) Populations in Mid-canterbury
Hawthorn (Crataegus monogyna) is a naturalised tree that is classified as a noxious plant in several counties in the eastern South Island. It is locally abundant in lowland forest remnants, and with the indigenous spiny shrub matagouri (Discaria toumatou), on grazing land in Canterbury. Two scrub sites near Porters Pass, where the original hawthorn trees still existed, and a forest site near Ko...
متن کاملPartial Purification and Characterisation of Polyphenol Oxidase from Tomatoes (Solanum Lycopersicum)
Polyphenol oxidase (PPO) from tomatoes was extracted and partially purified through (NH4)2SO4 precipitation, dialysis and ion exchange chromatography. The activity of polyphenol oxidase was investigated in solanum lycopersicum. Spectrophotometric method was used to assay the enzyme activity and the kinetic constants - maximum enzyme velocity (Vmax) and Michealis - Menten constant (Km). Of the ...
متن کاملThe investigation of some bioactive compounds and antioxidant properties of hawthorn (Crataegus monogyna subsp. monogyna Jacq)
AIM The antioxidant and pharmacological effects of hawthorn have mainly been attributed to the polyphenolic contents. The aim of this research is to determine some bioactive compounds and antioxidant properties of hawthorn aqueous and ethanol extracts of leaves, flowers, and ripened fruits. MATERIALS AND METHODS For this purpose, antioxidant activities of extracts were assessed on DPPH•, ABTS...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sakarya University Journal of Science
سال: 2018
ISSN: 1301-4048
DOI: 10.16984/saufenbilder.334811