Survey of the inhibitory effect on growth and ethanol yield in the fermentation process of baker’s yeast Saccharomyces cerevisiae
Introduction: The use of hydrolysis process in order to release reducing sugars of Polysaccharide materials for ethanol production, especially in acid hydrolysis process, causes the produce growth inhibitors compounds such as furfural and hydroxymethyl. Existing these compounds in culture medium, in...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Isfahan
2015-06-01
|
| Series: | Biological Journal of Microorganism |
| Subjects: | |
| Online Access: | http://uijs.ui.ac.ir/bjm/browse.php?a_code=A-10-404-1&slc_lang=en&sid=1 |
| _version_ | 1818158207750635520 |
|---|---|
| author | masoud hatami manesh Habibollah Younesi Nader Bahramifar |
| author_facet | masoud hatami manesh Habibollah Younesi Nader Bahramifar |
| author_sort | masoud hatami manesh |
| collection | DOAJ |
| description | Introduction: The use
of hydrolysis process in order to release reducing sugars of Polysaccharide materials
for ethanol production, especially in acid
hydrolysis process, causes the produce growth inhibitors
compounds such as furfural and hydroxymethyl. Existing these compounds in culture medium, in
addition to decrease microorganism growth and glucose consumption they cause the decrease efficiency of ethanol production. Materials and methods: In order to investigate the effect of both inhibiting compounds
hydroxymethyl furfural and
furfural on growth, glucose consumption and
ethanol production by Saccharomycescerevisiae
yeast, four field experiments with different concentrations include
0orcontrol0.5, 1 and 2gl-1of each compound was prepared, and their
inhibitory effects on yeast growth and ethanol production was studied in during
36 h. Results: The results showed that with increasing
concentration hydroxymethyl furfural and furfural, both compounds have inhibitory effect on growth yeast, glucose consumption and ethanol production, so that the maximum efficiency of ethanol production
for two compounds (hydroxymethylfural
and furfural), were observed at concentrations
of 0 or control and 0.5 gl-1.The results showed that the furfural
compound in comparison to hydroxymethylfural have more inhibitory effect on Saccharomycescerevisiae growth and
ethanol production by it. Discussion and conclusion: In general decrease
in glucose consumption by increasing concentrations of these compounds showed
the negative effects of these compounds on the growth and metabolism yeast, and therefore the ethanol
production is reduced. |
| first_indexed | 2024-12-11T15:26:25Z |
| format | Article |
| id | doaj.art-0dbc84d8294b40e684fcc237eb7e24dd |
| institution | Directory Open Access Journal |
| issn | 2322-5173 2322-5181 |
| language | English |
| last_indexed | 2024-12-11T15:26:25Z |
| publishDate | 2015-06-01 |
| publisher | University of Isfahan |
| record_format | Article |
| series | Biological Journal of Microorganism |
| spelling | doaj.art-0dbc84d8294b40e684fcc237eb7e24dd2022-12-22T01:00:10ZengUniversity of IsfahanBiological Journal of Microorganism2322-51732322-51812015-06-014131124Survey of the inhibitory effect on growth and ethanol yield in the fermentation process of baker’s yeast Saccharomyces cerevisiaemasoud hatami manesh0Habibollah Younesi1Nader Bahramifar2 Tarbiat Modares University Tarbiat Modares University Tarbiat Modares University Introduction: The use of hydrolysis process in order to release reducing sugars of Polysaccharide materials for ethanol production, especially in acid hydrolysis process, causes the produce growth inhibitors compounds such as furfural and hydroxymethyl. Existing these compounds in culture medium, in addition to decrease microorganism growth and glucose consumption they cause the decrease efficiency of ethanol production. Materials and methods: In order to investigate the effect of both inhibiting compounds hydroxymethyl furfural and furfural on growth, glucose consumption and ethanol production by Saccharomycescerevisiae yeast, four field experiments with different concentrations include 0orcontrol0.5, 1 and 2gl-1of each compound was prepared, and their inhibitory effects on yeast growth and ethanol production was studied in during 36 h. Results: The results showed that with increasing concentration hydroxymethyl furfural and furfural, both compounds have inhibitory effect on growth yeast, glucose consumption and ethanol production, so that the maximum efficiency of ethanol production for two compounds (hydroxymethylfural and furfural), were observed at concentrations of 0 or control and 0.5 gl-1.The results showed that the furfural compound in comparison to hydroxymethylfural have more inhibitory effect on Saccharomycescerevisiae growth and ethanol production by it. Discussion and conclusion: In general decrease in glucose consumption by increasing concentrations of these compounds showed the negative effects of these compounds on the growth and metabolism yeast, and therefore the ethanol production is reduced.http://uijs.ui.ac.ir/bjm/browse.php?a_code=A-10-404-1&slc_lang=en&sid=1Ethanol Cell biomass Furfural Hydroxymethyl fural Saccharomyces cerevisiae |
| spellingShingle | masoud hatami manesh Habibollah Younesi Nader Bahramifar Survey of the inhibitory effect on growth and ethanol yield in the fermentation process of baker’s yeast Saccharomyces cerevisiae Biological Journal of Microorganism Ethanol Cell biomass Furfural Hydroxymethyl fural Saccharomyces cerevisiae |
| title | Survey of the inhibitory effect on growth and ethanol yield in the fermentation process of baker’s yeast Saccharomyces cerevisiae |
| title_full | Survey of the inhibitory effect on growth and ethanol yield in the fermentation process of baker’s yeast Saccharomyces cerevisiae |
| title_fullStr | Survey of the inhibitory effect on growth and ethanol yield in the fermentation process of baker’s yeast Saccharomyces cerevisiae |
| title_full_unstemmed | Survey of the inhibitory effect on growth and ethanol yield in the fermentation process of baker’s yeast Saccharomyces cerevisiae |
| title_short | Survey of the inhibitory effect on growth and ethanol yield in the fermentation process of baker’s yeast Saccharomyces cerevisiae |
| title_sort | survey of the inhibitory effect on growth and ethanol yield in the fermentation process of baker s yeast saccharomyces cerevisiae |
| topic | Ethanol Cell biomass Furfural Hydroxymethyl fural Saccharomyces cerevisiae |
| url | http://uijs.ui.ac.ir/bjm/browse.php?a_code=A-10-404-1&slc_lang=en&sid=1 |
| work_keys_str_mv | AT masoudhatamimanesh surveyoftheinhibitoryeffectongrowthandethanolyieldinthefermentationprocessofbakersyeastsaccharomycescerevisiae AT habibollahyounesi surveyoftheinhibitoryeffectongrowthandethanolyieldinthefermentationprocessofbakersyeastsaccharomycescerevisiae AT naderbahramifar surveyoftheinhibitoryeffectongrowthandethanolyieldinthefermentationprocessofbakersyeastsaccharomycescerevisiae |