Effects of light wavelength and intensity on the production of ethanol by<i>Saccharomyces cerevisiae</i>in batch cultures

Shu, Chin Hang; Huang, Chun Kai; Tsai, Chieh Chung

doi:10.1002/jctb.2148

Cited by 8 publications

(2 citation statements)

References 20 publications

(12 reference statements)

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“…On the other hand, studies carried out in S. cerevisiae have shown that both the presence of hydroxycinnamic acids in the culture medium and light would affect its growth ( Ułaszewski et al, 1979 ; Baranowski et al, 1980 ; Shu et al, 2009 ; Robertson et al, 2013 ). We evaluated how B. bruxellensis LAMAP2480 responds to these two factors ( p CA and light).…”

Section: Resultsmentioning

confidence: 99%

Effect of Light and p-Coumaric Acid on the Growth and Expression of Genes Related to Oxidative Stress in Brettanomyces bruxellensis LAMAP2480

et al. 2021

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Brettanomyces bruxellensis is considered the most significant contaminant yeast in the wine industry since it causes a deterioration in the organoleptic properties of the wine and significant economic losses. This deterioration is due to the production of volatile phenols from hydroxycinnamic acids. These compounds possess antimicrobial properties; however, B. bruxellensis can resist this effect because it metabolizes them into less toxic ones. Recent studies have reported that B. bruxellensis grows under different stress conditions, including p-coumaric acid (pCA) but effective methods for its control have not been found yet. Since that in other yeasts, such as Saccharomyces cerevisiae, it has been described that light affects its growth, and we evaluated whether the light would have a similar effect on B. bruxellensis. The results show that at light intensities of 2,500 and 4,000 lux in the absence of pCA, B. bruxellensis LAMAP2480 does not grow in the culture medium; however, when the medium contains this acid, the yeast adapts to both factors of stress managing to grow. The expression of genes related to oxidative stress in B. bruxellensis LAMAP2480, such as SOD1, GCN4, and ESBP6, showed a higher relative expression when the yeast was exposed to 2,500 lux compared to 4,000 lux, agreeing with the growth curves. This suggests that a higher expression of the genes studied would be related to stress-protective effects by pCA.

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Section: Resultsmentioning

confidence: 99%

Effect of Light and p-Coumaric Acid on the Growth and Expression of Genes Related to Oxidative Stress in Brettanomyces bruxellensis LAMAP2480

et al. 2021

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“…with Saccharomyces cerevisiae , Shu et al. obtained a higher growth rate with red light and higher lipid productivity with blue light.…”

Section: Introductionmentioning

confidence: 99%

Light irradiance and spectral distribution effects on microalgal bioreactors

Gutierrez-Wing

Silaban

Barnett

et al. 2014

Engineering in Life Sciences

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The irradiance and light spectral distribution affect the growth and productivity of microalgal cultures. In extensive open pond cultures, the light control has limited options, mainly the culture depth. In photobioreactors, besides the culture depth, the light source, configuration of the reactor, light pathway, and flow rate can be used to control the characteristics of the light available to the cultures. The change of light conditions can also be used to modify the composition of the microalgal biomass produced to optimize the production of bioproducts of interest. Additionally, in mixed cultures, the species composition can be influenced by the light quantity and quality. Determining the effect of the light quantity and quality in photosynthetic cultures will help to develop strategies to optimize the production of biomass, lipids, pigments, proteins, and other compounds of interest in photosynthetic microorganisms. Information obtained from bench scale cultures can rarely be applied directly to large‐scale bioreactors. Nonetheless, determining the kinetic parameters of microalgal cultures at bench scale will reduce the time needed to optimize the cultures in photobioreactors. In this work, a review of the main factors is presented, along with specific examples of the effect of light quality and quantity in cultures with single and multiple species. Additionally, some models to predict the effect of light on microalgal productivity are discussed.

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Current awareness on yeast

2009

Yeast

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In order to keep subscribers up‐to‐date with the latest developments in their field, this current awareness service is provided by John Wiley & Sons and contains newly‐published material on yeasts. Each bibliography is divided into 10 sections. 1 Reviews; 2 General; 3 Biochemistry; 4 Biotechnology; 5 Cell Biology; 6 Gene Expression; 7 Genetics; 8 Physiology; 9 Medical Mycology; 10 Recombinant DNA Technology. Within each section, articles are listed in alphabetical order with respect to author. If, in the preceding period, no publications are located relevant to any one of these headings, that section will be omitted. (5 weeks journals ‐ search completed 4th. Nov. 2009)

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Effects of light wavelength and intensity on the production of ethanol bySaccharomyces cerevisiaein batch cultures

Cited by 8 publications

References 20 publications

Effect of Light and p-Coumaric Acid on the Growth and Expression of Genes Related to Oxidative Stress in Brettanomyces bruxellensis LAMAP2480

Effect of Light and p-Coumaric Acid on the Growth and Expression of Genes Related to Oxidative Stress in Brettanomyces bruxellensis LAMAP2480

Light irradiance and spectral distribution effects on microalgal bioreactors

Current awareness on yeast

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