tannins and Hypoxia
tannins has been researched along with Hypoxia* in 4 studies
Other Studies
4 other study(ies) available for tannins and Hypoxia
| Article | Year |
|---|---|
Evaluation of oenological tannins for preventing the light-struck taste.
The light-struck taste (LST) is a fault occurring in white and rosé wines associated to the formation of volatile sulfur compounds (VSCs) due to the reactions between riboflavin (RF) and methionine (Met). We investigated the possible preventing effect of 15 commercial tannins of different origin in model wine added with RF and Met, under oxic and anoxic conditions, and submitted to standardized light-exposure. All the tannins limited the degradation of Met in comparison to the tannin-free samples. Lower concentrations of VSCs were found in presence of tannins even under anoxia, condition favouring their formation. The sniffing trials evidenced the minor perception of cooked cabbage note with added tannins. The multivariate analysis showed the presence of flavan-3-ols was related to the formation of DMDS and DMTS, while tannic acid was related to MeSH, both the behaviors occurring under oxic condition. The study highlighted the ability of tannins to prevent the LST. Topics: Humans; Hypoxia; Methionine; Racemethionine; Riboflavin; Sulfur Compounds; Tannins; Taste; Wine | 2023 |
Two novel anoxia-induced ethylene response factors that interact with promoters of deastringency-related genes from persimmon.
A hypoxic environment is generally undesirable for most plants and stimulates anaerobic metabolism. It is a beneficial treatment, however, for the removal of astringency from persimmon to improve the fruit quality after harvest. High soluble tannins (SCTs) content is one of most important causes of astringency. High CO2 (95%) treatment effectively reduced SCTs in both "Mopan" and "Gongcheng-shuishi" persimmon fruit by causing increases in acetaldehyde. Using RNA-seq and realtime PCR, twelve ethylene response factor genes (DkERF11-22) were isolated and characterized, to determine those responsive to high CO2 treatment. Only two genes, DkERF19 and DkERF22, showed trans-activation effects on the promoters of deastringency-related genes pyruvate decarboxylase genes (DkPDC2 and DkPDC3) and the transcript levels of these genes was enhanced by hypoxia. Moreover, DkERF19 and the previously isolated DkERF9 had additive effects on activating the DkPDC2 promoter. Taken together, these results provide further evidence that transcriptome changes in the level of DkERF mRNAs regulate deastringency-related genes and their role in the mechanism of persimmon fruit deastringency is discussed. Topics: Carbon Dioxide; Diospyros; Ethylenes; Fruit; Gene Expression Regulation, Plant; Hypoxia; Promoter Regions, Genetic; Tannins; Transcription Factors | 2014 |
Factors modifying the interaction of platelets with the vessel wall.
Topics: Animals; Blood; Blood Cell Count; Blood Platelets; Blood Vessels; Buffers; Citrates; Collagen; Densitometry; Disease Models, Animal; Dose-Response Relationship, Drug; Endothelium; Hematocrit; Hydrogen-Ion Concentration; Hypoxia; Lactates; Platelet Adhesiveness; Rats; Tannins; Thrombosis | 1972 |
The behavior of some enzymes in the amniotic fluid in acute hypoxia of prematurely born fetuses.
Topics: Adult; Alanine Transaminase; Amniotic Fluid; Aspartate Aminotransferases; Cholinesterases; Female; Humans; Hypoxia; Infant, Newborn; Infant, Premature, Diseases; L-Lactate Dehydrogenase; Pregnancy; Proteins; Tannins; Transaminases | 1969 |