Effects of binge exposure to high ethanol concentration on the spleen of adolescent rat

Alcohol ◽  
2014 ◽  
Vol 48 (7) ◽  
pp. 730
Author(s):  
X. Liu ◽  
Z. Yang ◽  
Y. Wei ◽  
P. Lam ◽  
M.D. Li ◽  
...  
Keyword(s):  
Ethanol Concentration ◽  
High Ethanol

scholarly journals Effect of Various Parameters on the Growth and Ethanol Production by Yeasts Isolated from Natural Sources

2016 ◽  
Vol 30 (1-2) ◽  
pp. 49-54 ◽  
Author(s):  
Shafkat Shamim Rahman ◽  
Md Mahboob Hossain ◽  
Naiyyum Choudhury
Keyword(s):  
Alcoholic Fermentation ◽  
Ethanol Concentration ◽  
Growth Conditions ◽  
Sugar Concentration ◽  
Sugarcane Molasses ◽  
Natural Sources ◽  
Date Juice ◽  
Optimized Conditions ◽  
High Ethanol ◽  
Yepd Medium

Two ethanol fermenting Saccharomyces cerevisiae were isolated from date juice and grapes and grown in YEPD medium. They were characterized for alcoholic fermentation using sugarcane molasses and their growth conditions were optimized with respect to pH and sugar concentration. Results revealed a temperature of 30ºC, pH 6.0 and 6.5% sugar concentration as optimum for fermentation. Stress tolerance tests showed that date juice isolate was highly tolerant to temperature, pH and high ethanol concentration in the medium. Under optimized conditions, S. cerevisiae isolated from date-juice produced 7.75% of ethanol in molasses as estimated by Conway method.Bangladesh J Microbiol, Volume 30, Number 1-2,June-Dec 2013, pp 49-54

scholarly journals Non-alcoholic components of Pelinkovac, a Croatian wormwood-based strong liquor, counteract the inhibitory effect of high ethanol concentration on catalase in vitro

2022 ◽  
Author(s):  
Jan Homolak ◽  
Ana Babic Perhoc ◽  
Mihovil Joja ◽  
Ivan Kodvanj ◽  
Karlo Toljan ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Free Radicals ◽  
Ethanol Concentration ◽  
Inhibitory Effect ◽  
Alcoholic Beverages ◽  
Acidic Ph ◽  
Inhibitory Effects ◽  
High Ethanol ◽  
Antioxidant Enzyme Catalase

Antioxidant enzyme catalase protects the cells against alcohol-induced oxidative stress by scavenging free radicals and metabolizing alcohol. Concentrations of ethanol present in alcoholic beverages can inhibit catalase and foster oxidative stress and alcohol-induced injury. Non-alcoholic components of pelinkovac counteract the inhibitory effects of high ethanol concentration and acidic pH on catalase in vitro.

Analysis of adaptation to high ethanol concentration in Saccharomyces cerevisiae using DNA microarray

2009 ◽  
Vol 32 (5) ◽  
pp. 681-688 ◽  
Author(s):  
Thai Nho Dinh ◽  
Keisuke Nagahisa ◽  
Katsunori Yoshikawa ◽  
Takashi Hirasawa ◽  
Chikara Furusawa ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Dna Microarray ◽  
Ethanol Concentration ◽  
High Ethanol

scholarly journals The effect of ethanol on drug oxidations in vitro and the significance of ethanol–cytochrome P-450 interaction

1973 ◽  
Vol 134 (2) ◽  
pp. 367-375 ◽  
Author(s):  
Dominick L. Cinti ◽  
Robert Grundin ◽  
Sten Orrenius
Keyword(s):  
Microsomal Fraction ◽  
Ethanol Concentration ◽  
Inhibitory Effect ◽  
Type I ◽  
Spectral Change ◽  
High Concentration ◽  
Liver Slices ◽  
Liver Microsomal Fraction ◽  
Cytochrome P 450 ◽  
High Ethanol

The effect of ethanol on N-demethylation of aminopyrine in rat liver slices and in the microsomal fraction and on microsomal hydroxylation of pentobarbital and aniline was studied. With liver slices N-demethylation of aminopyrine was stimulated by 35–40% at low ethanol concentrations (2mm), whereas no stimulation occurred at high concentrations (100mm). With the liver microsomal fraction, an inhibitory effect was observed only at high ethanol concentrations (100mm). This was also observed with the other drugs studied. In agreement with these results, only at a high concentration did ethanol interfere with the binding of drug substrates to cytochrome P-450. Further, as previously reported, ethanol produced a reverse type I spectral change when added to the liver microsomal fraction. Evidence that this spectral change is due to removal of substrate, endogenously bound to cytochrome P-450, is reported. A dual effect of ethanol is assumed to explain the present findings; in liver slices, at a low ethanol concentration, the enhanced rate of drug oxidation is the result of an increased NADH concentration, whereas the inhibitory effect observed with the microsomal fraction at high ethanol concentration is due to the interference by ethanol with the binding of drug substrates to cytochrome P-450.

scholarly journals Performance Evaluation of Sweet Sorghum Juice and Sugarcane Molasses for Ethanol Production

2015 ◽  
Vol 17 (3) ◽  
pp. 13-18
Author(s):  
Mohammad Sadegh Hatamipour ◽  
Abbas Almodares ◽  
Mohsen Ahi ◽  
Mohammad Ali Gorji ◽  
Qazaleh Jahanshah
Keyword(s):  
Performance Evaluation ◽  
Cell Viability ◽  
Physical Properties ◽  
Ethanol Production ◽  
Sweet Sorghum ◽  
Fermentation Process ◽  
Ethanol Concentration ◽  
Sugarcane Molasses ◽  
Sweet Sorghum Juice ◽  
High Ethanol

Abstract Sweet sorghum juice and traditional ethanol substrate i.e. sugarcane molasses were used for ethanol production in this work. At the end of the fermentation process, the sweet sorghum juice yielded more ethanol with higher ethanol concentration compared to sugarcane molasses in all experiments. The sweet sorghum juice had higher cell viability at high ethanol concentrations and minimum sugar concentration at the end of the fermentation process. The ethanol concentration and yield were 8.9% w/v and 0.45 g/g for sweet sorghum in 80 h and 6.5% w/v and 0.37 g/g for sugarcane molasses in 60 h, respectively. The findings on the physical properties of sweet sorghum juice revealed that it has better physical properties compared to sugarcane molasses, resulting to enhanced performance of sweet sorghum juice for ethanol production

Modelling of Ethanol Fermentation Coupled with Product Recovery by Pervaporation

2017 ◽  
Vol 68 (11) ◽  
pp. 2708-2715
Author(s):  
Bogdan Trica ◽  
Oana Cristina Parvulescu ◽  
Tanase Dobre ◽  
Ali A. A. Al Janabi ◽  
Cristian Raducanu ◽  
...  
Keyword(s):  
Batch Fermentation ◽  
Ethanol Concentration ◽  
Water System ◽  
Yeast Cells ◽  
Operating Modes ◽  
Surface Areas ◽  
Sugar Fermentation ◽  
Fed Batch Fermentation ◽  
Negative Effect ◽  
High Ethanol

Bioethanol is the most important biofuel produced by fermentation of sugars from various biomass types. The main disadvantages associated to this process consist in the negative effect of high ethanol concentration on the cell growth and in the separation cost of ethanol-water system resulted in the fermentation process. Sugar fermentation using Saccharomyces cerevisiae yeast coupled with bioethanol recovery by pervaporation has been modeled and simulated in this paper. In order to avoid the clogging of pervaporation membrane, the yeast cells were previously retained into an ultrafiltration unit. Three operating modes were analyzed and compared, i.e., classical batch fermentation (BF), batch fermentation coupled with external ultrafiltration and pervaporation (BFPV), and fed batch fermentation coupled with external ultrafiltration and pervaporation (FBFPV). Surface areas of ultrafiltration and pervaporation units were selected as process control variables.

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