Results 31 to 40 of about 30,882 (162)

Sex-related differences of two ecologically divergent Salix species in the responses of enzyme activities to atmospheric CO2 enrichment

open access: yesBiologia Plantarum, 2013
Sex-related differences in the responses of plants to CO2 enrichment are still rarely studied. In this study, we examined the effects of elevated atmospheric CO2 (720 μmol mol-1) on the activities of polyphenoloxidases (PPOs) and guaiacol peroxidases ...
T. Ruuhola   +2 more
doaj   +1 more source

COMPARSION BETWEEN PPO FROM PLANT SOURCES AND DIFFER-ENT CHEMICALS IN TATTOO DYES DECOLORIZATION

open access: yesThe Iraqi Journal of Agricultural science, 2020
This study was aimed to measure the decolorization of tattoo dyes by different chemicals and polyphenol oxidases from several plant sources. The tattoo inks removal market has burgeoned over the years, due to increased spread of tattooed persons about ...
A. J. R. Al-Sa'ady
doaj   +1 more source

Rhizosphere soil properties of waxy sorghum under different row ratio configurations in waxy sorghum-soybean intercropping systems.

open access: yesPLoS ONE, 2023
To overcome the continuous planting obstacle and promote the sustainable production of waxy sorghum, a two-years field experiment was performed to determine the responses of waxy sorghum rhizosphere soil properties to different row ratio configurations ...
Mingbo Shao   +7 more
doaj   +1 more source

Tea Leaf Polyphenol Oxidase

open access: yesAgricultural and Biological Chemistry, 1965
The large part of the polyphenol oxidase was solubilized from tea leaf homogenate by addition of Tween-80. After filtration of the solubilized polyphenol oxidase fraction through a Sephadex G-25 column and fractionation of the filtrate with ammonium sulfate, the specific activity of the solubilized enzyme increased about 4 to 5 times as much as that of
openaire   +5 more sources

Both 1-methylcyclopropene treatment and fresh-keeping mats mitigate peel browning and affect the aroma of Xinjiang “Yinggeer” flat peaches during cold storage

open access: yesFood Chemistry: X
The current study explored the effects of 1-methylcyclopropene (1-MCP) and fresh-keeping mats (FKP) on aroma volatile levels and peel browning (PB) in flat peaches during.cold storage. Both 1-MCP and FKP treatments prevented PB by inhibiting the activity
Xiaobin Ji   +3 more
doaj   +1 more source

Activation of Polyphenol Oxidase of Chloroplasts [PDF]

open access: yesPlant Physiology, 1973
Polyphenol oxidase of leaves is located mainly in chloroplasts isolated by differential or sucrose density gradient centrifugation. This activity is part of the lamellar structure that is not lost on repeated washing of the plastids. The oxidase activity was stable during prolonged storage of the particles at 4 C or -18 C.
openaire   +2 more sources

Studying the physiological and yield responses of sunflower inbred lines to full and limited irrigation

open access: yesJournal of Integrative Agriculture, 2018
In order to study the physiological and yield responses of sunflower inbred lines to full and limited irrigation, an experiment was conducted in the growing season of 2014–2015 in the research field of the Agricultural Research Station in Khoi, Iran ...
Nasserghadimi Farshad   +3 more
doaj   +1 more source

Elucidating the effects on polyphenol oxidase activity and allelic variation of polyphenol oxidase genes on dough and whole wheat-derived product color parameters

open access: yesInternational Journal of Food Properties, 2023
Polyphenol oxidase (PPO) activity is a primary cause of the development of unattractive dark brown discoloration of wheat-based end products. The present study aims to evaluate a set of 41 diverse wheat genotypes grown at three different locations in ...
Rajappa Harisha   +13 more
doaj   +1 more source

Characterization and genetic variability of wheat genotypes for polyphenol oxidase (PPO) activity

open access: yesElectronic Journal of Plant Breeding, 2022
Noodles and chapatti having white or slightly yellow colour are preferred by consumers. Polyphenol oxidase (PPO) enzyme is responsible for discoloration of wheat products. One hundred wheat genotypes were screened using L-DOPA and phenol assays for PPO
A. S. Shitre1, G. Vishwakarma1, V. Kumar1, Swati Bharad2, U. G. Kachole3, N. M. Magar3, P. Shinde3 and B. K. Das1,*
doaj   +1 more source

Biochemical and molecular analysis of Camellia sinensis (L.) O. Kuntze tea from the selected P/11/15 clone

open access: yesJournal of Genetic Engineering and Biotechnology, 2016
Green tea is one of the most important beverages consumed across the world and it possesses various phytotherapeutics. Polyphenol oxidase (PPO) activity, total polyphenols, catechins, amino acid content and enzymatic antioxidants are considered to be ...
Samynathan Ramkumar   +6 more
doaj   +1 more source

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