Results 21 to 30 of about 2,182 (142)

Functional and conservation value of fruits - a lab approach [PDF]

open access: yes, 2020
[EN] Fruits are a relevant source of phenols and ascorbate, biomolecules which scavenge reactive oxygen species. For this reason, they are considered as healthy for the human being.
Alves-Pereira, Isabel   +4 more
core   +1 more source

Yellow pigments produced by oxidative oligomerization of dihydrochalcone glucoside and the reaction mechanism [PDF]

open access: yes, 2023
From the dried leaves of Lithocarpus polystachyus, yellow pigments, lithocarputins B (11) and C (12), were isolated with a colorless dihydrochalcone dimer, lithocarputin A (10). The pigments 11 and 12 are dimeric dihydrochalcone glycosides with bicyclo[3.
Huang, Yong-Lin   +6 more
core   +1 more source

Oxidation mechanisms occurring in wines [PDF]

open access: yes, 2011
The present review aims to show the state of the art on the oxidation mechanisms occurring in wines, as well as the methods to monitor, classify and diagnose wine oxidation. Wine oxidation can be divided in enzymatic oxidation and non-enzymatic oxidation.
António César Silva Ferreira   +115 more
core   +1 more source

Polyphenol Oxidase Activity on Guaiacyl and Syringyl Lignin Units

open access: yesAngewandte Chemie, Volume 136, Issue 48, November 25, 2024.
The conversion of lignin‐derived guaiacyl (G) and syringyl (S) compounds into methoxy‐ortho‐diphenols through oxidative ortho‐hydroxylation and ortho‐demethoxylation reactions catalyzed by novel fungal polyphenol oxidases (PPOs) is presented. The formation of o‐diphenols rather than reactive quinones can be steered by the addition of a reductant. These
Caio de O. G. Silva   +7 more
wiley   +2 more sources

Fragment-Based Approaches to the Development of Mycobacterium tuberculosis CYP121 Inhibitors. [PDF]

open access: yes, 2016
The essential enzyme CYP121 is a target for drug development against antibiotic resistant strains of Mycobacterium tuberculosis. A triazol-1-yl phenol fragment 1 was identified to bind to CYP121 using a cascade of biophysical assays.
Andrew W. Munro   +15 more
core   +4 more sources

Special characteristics of technological indicators of white aboriginal grape varieties [PDF]

open access: yes, 2023
Sparkling wines are high in demand, and they firmly occupy their strong position in wine market. In recent years, there was a reorientation of consumers from the low-price segment of sparkling wines to the mid-price and premium ones, motivating the ...
Lutkov Igor   +4 more
core   +1 more source

Characterization and Evaluation of Catalytic Activity of Small Molecule Copper Complexes for Metallopolymer Design [PDF]

open access: yes, 2023
Catalysis is one of the driving forces in designing greener chemical processes for essential real-world applications. Enzymes, Nature’s catalysts, are known for their high selectivity, use of readily available metals and reagents, and ability to work ...
Lu, Brenda
core   +2 more sources

The role of tyrosine hydroxylase as a key player in neuromelanin synthesis and the association of neuromelanin with Parkinson’s disease [PDF]

open access: yes, 2023
The dark pigment neuromelanin (NM) is abundant in cell bodies of dopamine (DA) neurons in the substantia nigra (SN) and norepinephrine (NE) neurons in the locus coeruleus (LC) in the human brain.
Dijkstra, Johannes M.   +10 more
core   +1 more source

Oxidative Stress: Molecular Mechanisms, Diseases, and Therapeutic Targets

open access: yesMedComm, Volume 7, Issue 2, February 2026.
Oxidative stress occurs when the reactive oxygen species (ROS) production overwhelms the ROS scavenging, which lead to genomic instability, epigenetic regulation, proteostasis imbalance, and lipid peroxidation, subsequently causing the occurrence and development of numerous diseases. ABSTRACT Although the physiological level of reactive oxygen species (
Yi Qin   +10 more
wiley   +1 more source

Characterization of Isolated Bioactive Phytoconstituents from Flacourtia Indica as Potential Phytopharmaceuticals-An in Silico Perspective [PDF]

open access: yes, 2016
The dependence of mankind for therapeutic applications on plants dates back to the start of the human race. Natural remedies from ethnobotanicals are found to be safe and cost effective.
Arbaaz Ahmed, L.   +3 more
core  

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