関連する実験動画

Updated: Sep 9, 2025

Methods to Inhibit Bacterial Pyomelanin Production and Determine the Corresponding Increase in Sensitivity to Oxidative Stress
11:00

Methods to Inhibit Bacterial Pyomelanin Production and Determine the Corresponding Increase in Sensitivity to Oxidative Stress

Published on: August 31, 2015

8.4K

ピリミジンチオルのチロシナーゼ抑制機構と,新鮮な切断されたリンゴの茶色化防止におけるそれらの潜在的な応用

Guangcheng Wang1, Jinfeng Zhang1, Zhiyun Peng2

  • 1State Key Laboratory of Discovery and Utilization of Functional Components in Traditional Chinese Medicine, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Provincial Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Guizhou Medical University, Guian New Area, 561113, China.

Food chemistry
|August 29, 2025
PubMed
まとめ

ピリミジン2チオール (PT) とピリミジン2,4- ディチオール (PDT) は強力なチロシナーゼ阻害剤で,コジック酸を大幅に上回ります. これらの安全な化合物は 果物の茶色化を効果的に防止し 食品産業にとって有望な解決策となります

キーワード:
茶色化防止剤ピリミジン-チオールタイロシナーゼ阻害剤

さらに関連する動画

Quantification of Hypopigmentation Activity In Vitro06:08

Quantification of Hypopigmentation Activity In Vitro

Published on: March 6, 2019

11.4K
Quantifying the Modulation of Elastase Enzyme Activity Through Colorimetric Analysis04:30

Quantifying the Modulation of Elastase Enzyme Activity Through Colorimetric Analysis

Published on: January 17, 2025

1.3K

関連する概念動画

Allosteric Proteins-ATCase01:19

Allosteric Proteins-ATCase

Binding sites linkages can regulate a protein's function.  For example, enzyme activity is often regulated through a feedback mechanism where the end product of the biochemical process serves as an inhibitor.
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to  N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...
5.9K
Radical Autoxidation01:20

Radical Autoxidation

The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...
2.2K
Preparation and Reactions of Thiols02:33

Preparation and Reactions of Thiols

Thiols are prepared using the hydrosulfide anion as a nucleophile in a nucleophilic substitution reaction with alkyl halides. For instance, bromobutane reacts with sodium hydrosulfide to give butanethiol.
6.7K
Enzyme Inhibition01:30

Enzyme Inhibition

Inhibitors are molecules that reduce enzyme activity by binding to the enzyme. In a normally functioning cell, enzymes are regulated by a variety of inhibitors. Drugs and other toxins can also inhibit enzymes. Some inhibitors bind to the enzyme’s active site, while others inhibit enzymatic activity by binding to other sites on the protein structure.
79.5K
Pyruvate Oxidation01:15

Pyruvate Oxidation

After glycolysis, the charged pyruvate molecules enter the mitochondria via active transport and undergo three enzymatic reactions. These reactions ensure that pyruvate can enter the next metabolic pathway so that energy stored in the pyruvate molecules can be harnessed by the cells.
First, the enzyme pyruvate dehydrogenase removes the carboxyl group from pyruvate and releases it as carbon dioxide. The stripped molecule is then oxidized and releases electrons, which are then picked up by NAD+...
161.1K