Results 1 to 10 of about 61,057 (211)

Insight of Polyphenol Oxidase Enzyme Inhibition and Total Polyphenol Recovery from Cocoa Beans [PDF]

Antioxidants, 2020
A full factorial design (ascorbic acid/l-cysteine inhibitors, temperature, and time as factors) study was conducted to enhance inhibition of polyphenol oxidase (PPO) activity without decreasing cocoa polyphenol concentrations.
Said Toro-Uribe, Jhair Godoy-Chivatá, Arley René Villamizar-Jaimes, María de Jesús Perea-Flores, Luis J. López-Giraldo   +4 more
doaj   +2 more sources

Purification and Characterization of Polyphenol Oxidase in the Fruits of Opuntia ficus-indica. [PDF]

Biology (Basel), 2023
Demir D, Kabak S, Çağlayan K.
europepmc   +3 more sources

Purification and Enzymatic Properties of Soluble and Membrane-Bound Polyphenol Oxidase from Agaricus bisporus [PDF]

Shipin Kexue, 2023
An extraction and purification method for soluble polyphenol oxidase (sPPO) and membrane-bound polyphenol oxidases (mPPO) from Agaricus bisporus was developed involving temperature-induced phase partitioning, fractional precipitation with ammonium ...
HE Xingxing, LEI Jing, GUAN Wenqiang
doaj   +1 more source

Antioxidant enzymes in the needles of different omorika lines [PDF]

Archives of Biological Sciences, 2005
Picea omorika (Panč) Purkyně (Serbian spruce) is a Balkan endemic coniferous species. We studied soluble peroxidase, catalase, polyphenol oxidase, and superoxide-dismutase activity in the needles of five omorika lines grown in a generative seed orchard ...
Bogdanović Jelena, Dučić Tanja M., Milosavić Nenad B., Vujčić Z., Šijačić Mirjana, Isajev Vasilije, Radotić Ksenija   +6 more
doaj   +1 more source

Study on the Synthesis of Theaflavin-3,3′-Digallate Catalyzed by Escherichia coli Expressing Tea Tree Polyphenol Oxidase Isozymes and Its Enzymatic Solution

Fermentation, 2023
Polyphenol oxidase and its isoenzymes are crucial enzymes in the tea tree that catalyze the synthesis of theaflavins. In this study, tea tree polyphenol oxidase was used as the research object, and various protein sequence treatments, such as TrxA fusion
Changwei Liu, Jinghui Zhou, Jianan Huang, Wei Xu, Zhonghua Liu   +4 more
doaj   +1 more source

Screening of Producing Polyphenol Oxidase Strains from the Fermentation Process of Liupao Tea and Purification of Polyphenol Oxidase

Shipin gongye ke-ji, 2022
In this study, 42 strains of microorganisms were isolated by traditional culture methods from the fermentation process of Liupao tea. The agar plate screening and liquid culture second round of screening was used to select microorganisms from 42 strains ...
Jie WANG, Yulin HE, Jianwen TENG, Ning XIA, Baoyao WEI, Li HUANG   +5 more
doaj   +1 more source

Spatio-temporal expression of polyphenol oxidase unveils the dynamics of L-DOPA accumulation in faba bean (<i>Vicia faba</i> L.). [PDF]

Physiol Mol Biol Plants
Jena S, Sanyal R, Jawed DM, Sengupta K, Pradhan B, Sinha SK, Sarkar B, Kumar S, Lenka SK, Naskar S, Bhadana VP, Bishi SK.   +11 more
europepmc   +3 more sources

Response of Black (Morus nigra), White and White Shahtoot (Morus alba) Mulberry Fruits to Ascorbic Acid Treatment and Drying Methods

مجلة ديالى للعلوم الزراعية, 2022
The drying process plays an important role in heat-sensitive product dehydration. This study was conducted to evaluate the response of three species of mulberry fruit (Morus nigra L. (Black mulberry), Morus alba L.
Dlkhwaz Ahmed Hama , Ali Muhi Aldeen Omar Aljabary , Alan Abdulrahman Othman , Huda Jamal Mhamad   +3 more
doaj   +1 more source

Electrochemistry and application of a novel monosubstituted squarate electron-transfer mediator in a glucose oxidase-doped poly(phenol) sensor [PDF]

, 2004
Electrosynthetic poly(phenol) nanofilms were deposited in situ on platinum electrodes in the presence and absence of glucose oxidase. The synthesis charges and currents of the nonconducting polymer films were recorded at various applied potentials for ...
Hall, Lincoln A., Iwuoha, Emmanuel I., Killard, Anthony J., Mathebe, Gretta N., Morrin, Aoife, Smyth, Malcolm R., Williams-Dottin, Avril R.   +6 more
core   +1 more source

MEKANISME INHIBISI ENZIM POLIFENOL OKSIDASE PADA SARI BUAH MARKISA DENGAN SISTEIN DAN ASAM ASKORBAT1

Jurnal Riset Kimia, 2015
The mechanism of polyphenol oxidase enzyme inhibition was studied by isolation of enzyme from the passion fruite juice (Passiflora Sp). The extracted enzyme polyphenol oxidase has an optimum activity at pH 5,6 and temperature of 300 C using a pirogalol ...
Elida Mardiah
doaj   +1 more source