Proline as a Formic Acid Stress Protectant During Fermentation of Glucose to Ethanol bySaccharomycesspp.

2017 ◽  
Vol 13 (4) ◽  
pp. 209-216 ◽  
Author(s):  
Cyprian E. Oshoma ◽  
Trevor G. Phister ◽  
Chris D. Powell ◽  
Katherine A. Smart ◽  
Chenyu Du
Keyword(s):  
Formic Acid ◽  
Acid Stress ◽  
Stress Protectant

scholarly journals Proteomic Evaluation of Cellular Responses ofSaccharomyces cerevisiaeto Formic Acid Stress

Mycobiology ◽  
2010 ◽  
Vol 38 (4) ◽  
pp. 302 ◽  
Author(s):  
Sung-Eun Lee ◽  
Byeoung-Soo Park ◽  
Jeong-Jun Yoon
Keyword(s):  
Formic Acid ◽  
Acid Stress ◽  
Cellular Responses

scholarly journals Transcriptomics Analysis of Formic Acid Stress Response in Saccharomyces Cerevisiae

2021 ◽  
Author(s):  
Lingjie Zeng ◽  
Jinxiang Huang ◽  
Pixue Feng ◽  
Xuemei Zhao ◽  
Zaiyong Si ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Formic Acid ◽  
Cell Damage ◽  
Protein Biosynthesis ◽  
Acid Stress ◽  
Yeast Cells ◽  
Molecular Response ◽  
Alcohol Fermentation ◽  
Atp Production ◽  
Lignocellulose Hydrolysate

Abstract Formic acid is a representative small molecule acid cell inhibitor in lignocellulosic hydrolysate, which can inhibit the growth of yeast cells in the process of alcohol fermentation. However, the mechanism of formic acid cytotoxicity remains largely unknown. This study aimed to study the cytotoxicity of formic acid stress to Saccharomyces cerevisiae. We evaluated the effects of formic acid on growth metabolism and cell morphology of yeast cells, and comprehensively and systematically analyzed the molecular mechanism of formic acid stress tolerance through transcriptome technology. The results showed that when the concentration of formic acid was 1.8 g/L, the growth of yeast cells was significantly inhibited, the cell surface was wrinkled, and the adhesion between cells was observed, and the cell wall and cell membrane of yeast were destroyed by changing the structure of proteins and carbohydrates, resulting in cell damage. Transcriptome sequencing results showed that formic acid stress inhibited protein biosynthesis, induced oxidative stress, resulted in autophagy, impaired intracellular ATP production and increased consumption, and then impaired normal physiological and metabolic functions of cells. Yeast cells provide sufficient ATP by accelerating glucose metabolism, enhancing electron transport and ATP synthesis more energy to resist formic acid stress, and reduce the expression of genes related to energy metabolism such as intracellular amino acids to achieve an energy-saving strategy, In addition, it can also induce sexual reproduction and spore formation to improve cell tolerance to formic acid. This study initially revealed the molecular response mechanism of S. cerevisiae under formic acid stress, and provided a scientific basis for further research on methods to improve the tolerance of cell inhibitors in lignocellulose hydrolysate.

Transcriptomic analysis of formic acid stress response in Saccharomyces cerevisiae

2022 ◽  
Vol 38 (2) ◽  
Author(s):  
Lingjie Zeng ◽  
Jinxiang Huang ◽  
Pixue Feng ◽  
Xuemei Zhao ◽  
Zaiyong Si ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Stress Response ◽  
Formic Acid ◽  
Acid Stress ◽  
Transcriptomic Analysis ◽  
Acid Stress Response

NANOELECTROCATALYSTS BASED PALLADIUM FOR FUEL CELLS WITH DIRECT OXIDATION OF FORMIC ACID

2019 ◽  
Vol 6 (3) ◽  
pp. 104-107
Author(s):  
Marina Vladimirovna Lebedeva ◽  
Alexey Petrovich Antropov ◽  
Alexander Victorovich Ragutkin ◽  
Nicolay Andreevich Yashtulov
Keyword(s):  
Formic Acid ◽  
Palladium Nanoparticles ◽  
Oxidation Reaction ◽  
Electrode Materials ◽  
Formic Acid Oxidation ◽  
Energy Sources ◽  
Acid Oxidation ◽  
Direct Oxidation ◽  
Atomic Force ◽  
Formic Acid Oxidation Reaction

In paper electrode materials with palladium nanoparticles on polymer matrix substrates for energy sources have been formed. Nanocomposites were investigated by atomic force and scanning electron microscopy. The catalytic activity of formed electrodes in the formic acid oxidation reaction was evaluated by voltammetry method.

THE JET-COOLED HIGH-RESOLUTION IR SPECTRUM OF FORMIC ACID CYCLIC DIMER

2017 ◽  
Author(s):  
Manuel Goubet ◽  
Robert Georges ◽  
P. Roy ◽  
Atef Jabri ◽  
Pascale Soulard ◽  
...  
Keyword(s):  
High Resolution ◽  
Formic Acid ◽  
Ir Spectrum ◽  
Cyclic Dimer

PURE ROTATIONAL SPECTRUM OF THE "NON-POLAR" DIMER OF FORMIC ACID

2017 ◽  
Author(s):  
Weixing Li ◽  
Walther Caminati ◽  
Rolf Meyer ◽  
Qian Gou ◽  
Luca Evangelisti
Keyword(s):  
Formic Acid ◽  
Rotational Spectrum

CONJUGATED OESTROGENS. I

1963 ◽  
Vol 43 (3) ◽  
pp. 345-360 ◽  
Author(s):  
Stanley Kushinsky ◽  
Jane (Wu) Tang
Keyword(s):  
Molecular Weight ◽  
Formic Acid ◽  
Ethyl Acetate ◽  
High Molecular Weight ◽  
Secondary Amine ◽  
Aqueous Ammonia ◽  
Organic Solution ◽  
Extraneous Material

ABSTRACT A convenient and mild procedure is described in this paper whereby free and conjugated oestrogens may be extracted from urine. The extracts containing approximately 90 per cent of the oestrogens are devoid of most of the extraneous material and may be reduced in volume to less than 1/15 of that of the urine. The procedure consists of the following steps: (1) a 10 per cent (v/v) solution of a high molecular weight secondary amine (Amberlite LA-2, Rohm and Haas) in ethyl acetate is washed with formic acid and water, (2) the oestrogens in urine (acidified to pH 2 or 3 with H2SO4) are extracted with the LA-2 solution, (3) the oestrogen fraction is back-extracted from the organic solution with dilute aqueous ammonia.

Effect of Formic Acid on Corrosion Behavior of STBA24 Low-Alloyed Steel and Its Weldment in Simulated Boiler Water Containing Chloride Ions

2020 ◽  
Vol 61 (9) ◽  
pp. 1775-1781
Author(s):  
Li-Bin Niu ◽  
Shoichi Kosaka ◽  
Masaki Yoshida ◽  
Yusuke Suetake ◽  
Kazuo Marugame
Keyword(s):  
Formic Acid ◽  
Corrosion Behavior ◽  
Chloride Ions ◽  
Alloyed Steel ◽  
Boiler Water ◽  
Low Alloyed Steel
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