Results 61 to 70 of about 58,939 (280)

Tea Leaf Polyphenol Oxidase

Agricultural 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

Food 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, Huijing Guo, Jiluan Chen, Fangyuan Song   +3 more
doaj   +1 more source

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

The 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

Activation of Polyphenol Oxidase of Chloroplasts [PDF]

Plant 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

Deciphering the catalytic and pharmacological mechanisms of Coptis chinensis herbzymes to renovate intestinal microenvironment for colitis alleviation

BMEMat, EarlyView.
The synthesized CCzymes possess both antioxidant enzyme activity and pharmacological properties inherent to Coptis chinensis. By their antioxidant enzyme activity, CCzymes can attenuate oxidative stress within the inflammatory region of ulcerative colitis (UC), while their pharmacological activity acts on macrophage polarization and the intestinal ...
Zhichao Deng, Can Li, Yujie Zhang, Yuanyuan Zhu, Chenxi Xu, Bowen Gao, Mingxin Zhang, Martina H. Stenzel, Kelong Fan, Mingzhen Zhang, Yanyan Jiang   +10 more
wiley   +1 more source

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

Journal 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, Jahanbakhsh Soodabeh, Ghaffari Mehdi, Ebadi Ali   +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

International 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, Sumit Kumar Singh, Arvind Kumar Ahlawat, Sneh Narwal, J. P. Jaiswal, J. B. Singh, Rajeev Ranjan Kumar, Shaily Singhal, Adithya P. Balakrishnan, Priyanka Shukla, Beera Bhavya, Arpita Agrawal, Sanjay K. Singh, Anju Mahendru-Singh   +13 more
doaj   +1 more source

2D copper nanozyme patches facilitate bone regeneration via interfacial modulation of osteoclast‐osteoblast dynamics

BMEMat, EarlyView.
This study develops a nano‐enzyme patch (ezPatch) targeting bone interfaces. Utilizing ligand‐to‐metal charge transfer (LMCT) catalysis and bone‐targeting ligands on copper nanosheets, ezPatch simultaneously scavenges reactive oxygen species (ROS) and generates oxygen in situ at bone‐losing sites.
Yi Chen, Haoyue Hu, Danyang Wang, Ying Wang, Zhibang Li, Xiaoyi Liu, Yandi Zhang, Junkun Feng, Weiwei Zhao, Kai Li, Qi‐Zhi Zhong, Shaohua Ge, Jianhua Li   +12 more
wiley   +1 more source

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

Electronic 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

Effect of carrot puree edible films on quality preservation of fresh-cut carrots [PDF]

, 2015
peer-reviewedFinancial support from the high level talent fund of Henan University of Technology Science and Technology (No. 2012BS024) is gratefully acknowledged.The effect of edible films based on carrot puree, chitosan, corn starch, gelatin, glycerol ...
Kong, D., Ma, Z., Wang, Xichang, Zhao, R.   +3 more
core   +1 more source