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Understanding the combined effect and inhibition mechanism of 4-hydroxycinnamic acid and ferulic acid as tyrosinase inhibitors.

Food Chemistry, 2021
The development of tyrosinase inhibitors to prevent the enzymatic browning have become a research hotspot in food industry. 4-Hydroxycinnamic acid (CA) and ferulic acid (FA) are both the derivates of cinnamic acids, which are widely coexisted in plants ...
Qun Yu, Liuping Fan
semanticscholar   +1 more source

Bacterial tyrosinases

Systematic and Applied Microbiology, 2006
Tyrosinases are nearly ubiquitously distributed in all domains of life. They are essential for pigmentation and are important factors in wound healing and primary immune response. Their active site is characterized by a pair of antiferromagnetically coupled copper ions, CuA and CuB, which are coordinated by six histidine residues. Such a "type 3 copper
Harald, Claus, Heinz, Decker
openaire   +2 more sources

Effect of ascorbic acid on tyrosinase and its anti-browning activity in fresh-cut Fuji apple.

Journal of food biochemistry, 2021
Tyrosinase (polyphenol oxidase) is the key enzyme of enzymatic browning in fruits and vegetables. In this research, the impact of ascorbic acid on tyrosinase and its anti-browning effect on fresh-cut Fuji apple were investigated. Ascorbic acid had a dual
Yi-Ting Wen   +5 more
semanticscholar   +1 more source

Tyrosinase as glycoprotein

Archives for Dermatological Research, 1975
Purified tyrosinase T1 was incubated with neuraminidase. The catalytic activity of tyrosinase was essentially retained, after this treatment. The tyrosinase band (Dopa stained) was transformed into a new less anodic form, similar to tyrosinase T2, on disc electrophoresis.
K, Miyazaki, N, Otaki
openaire   +2 more sources

Tyrosinase and Tyrosinase Inhibitors

Journal of Biocatalysis & Biotransformation, 2012
Tyrosinase and Tyrosinase Inhibitors Melanin is responsible for skin color and plays an important role in protection of the skin against UV light induced damage. During the melanin biosynthesis pathway, tyrosinase (EC 1.14.18.1) is the rate-limiting enzyme that hydroxylates L-tyrosine to L-3,4- dihydroxyphenylalanine (L-DOPA), and L-DOPA is further ...
openaire   +1 more source

The inhibition of tyrosinase

Archives of Biochemistry and Biophysics, 1955
Abstract The inhibition of tyrosinase by halide salts and carboxylic acids has been studied at several pH values. The presence of the benzene nucleus complements the inhibitory characteristics of carboxylic acids, and the existence of a negatively charged group on the inhibitor is also shown to be a factor.
openaire   +2 more sources

Inhibitory mechanism of epicatechin gallate on tyrosinase: inhibitory interaction, conformational change and computational simulation.

Food & Function, 2020
The inhibition mechanism of epicatechin gallate (ECG) on tyrosinase was investigated by multispectroscopic techniques combined with molecular docking and molecular dynamics simulation.
Xin Song   +5 more
semanticscholar   +1 more source

Five individual polyphenols as tyrosinase inhibitors: Inhibitory activity, synergistic effect, action mechanism, and molecular docking.

Food Chemistry, 2019
Polyphenols can inhibit the enzymatic browning in food, but their indistinct synergistic effect and conformational change have limited their applications.
Qun Yu, Liuping Fan, Z. Duan
semanticscholar   +1 more source

Biomedical applications of tyrosinases and tyrosinase inhibitors

Tyrosinase is involved in several human diseases, among which hypopigmentation and depigmentation conditions (vitiligo, idiopathic guttate hypomelanosis, pityriasis versicolor, pityriasis alba) and hyperpigmentations (melasma, lentigines, post-inflammatory and periorbital hyperpigmentation, cervical idiopathic poikiloderma and acanthosis nigricans ...
Luigi, Pisano   +2 more
openaire   +2 more sources

Phloretin as both a substrate and inhibitor of tyrosinase: Inhibitory activity and mechanism.

Spectrochimica Acta Part A - Molecular and Biomolecular Spectroscopy, 2020
Tyrosinase is the rate-limiting enzyme for controlling the production of melanin in the human body, and overproduction of melanin can lead to a variety of skin disorders. In this paper, the inhibitory kinetics of phloretin on tyrosinase and their binding
Jianmin Chen   +5 more
semanticscholar   +1 more source

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