2018
DOI: 10.1016/j.bjm.2017.09.002
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The potential of the newly isolated thermotolerant yeast Pichia kudriavzevii RZ8-1 for high-temperature ethanol production

Abstract: High potential, thermotolerant, ethanol-producing yeasts were successfully isolated in this study. Based on molecular identification and phylogenetic analysis, the isolated thermotolerant yeasts were clustered in the genera of Pichia kudriavzevii, Candida tropicalis, Candida orthopsilosis, Candida glabrata and Kodamea ohmeri. A comparative study of ethanol production using 160 g/L glucose as a substrate revealed several yeast strains that could produce high ethanol concentrations at high temperatures. When sug… Show more

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Cited by 74 publications
(80 citation statements)
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“…HSPs are expressed constitutively at high temperatures to assist with folding and assembly of proteins, refolding of damaged proteins, stabilization of new proteins and transport across the membranes. Some display proteolytic activity, p r e v e n t i n g d e n a t u r e d p r o t e i n s f r o m accumulating in the cells (Chamnipa et. al., 2018).…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…HSPs are expressed constitutively at high temperatures to assist with folding and assembly of proteins, refolding of damaged proteins, stabilization of new proteins and transport across the membranes. Some display proteolytic activity, p r e v e n t i n g d e n a t u r e d p r o t e i n s f r o m accumulating in the cells (Chamnipa et. al., 2018).…”
Section: Discussionmentioning
confidence: 99%
“…Yeasts have traditionally been used in microbial fermentations for the production of ethanol. Many factors such as heat, ethanol, osmotic pressure and feedstock breakdown products (Chamnipa et. al., 2018) negatively affect the specific growth rate of many yeasts thereby lowering ethanol production.…”
Section: Isolation and Characteristics Of The Yeast Strainmentioning
confidence: 99%
“…Ethanol production at high temperatures by thermotolerant yeasts has earned much interest due to several advantages as described above [38]. There are several ethanologenic yeasts that have been characterized and classified as thermotolerant yeasts such as K. marxianus [31,37,47], P. kudriavzevii (formally known as I. orientalis) [20,48,49,65,66], Hansenula polymorpha [67], and some strains of S. cerevisiae [21,52,[68][69][70]. However, for cost-effective and efficient ethanol production, not only thermotolerance but also a broad spectrum in sugar assimilation and fermentation capability is beneficial for the conversion of a variety of raw materials containing various sugars to ethanol, especially xylose, which is the most common pentose sugar and the second most abundant after glucose in lignocellulosic biomass and algal biomass [71,72].…”
Section: Utilization Of Various Sugars In Thermotolerant Yeastsmentioning
confidence: 99%
“…The strain KVMP10 that was isolated from soil located beneath apple trees for ethanol production from orange peel achieved 54 g/L ethanol at 42°C [48]. Strain RZ8-1 that was recently isolated from various samples collected from plant orchards in Thailand produced 33.8 g/L ethanol from 160 g/L glucose at 40°C [49].…”
mentioning
confidence: 99%
“…A habilidade para fermentação das pentoses presentes no hidrolisado ainda não é difundida entre os organismos, ao passo que a fermentação de todos os açúcares liberados na hidrólise é determinante para aumentar o rendimento do processo (CHAMNIPA et al, 2017). Graças aos avanços em engenharia genética linhagens de S. cerevisiae capazes de assimilar pentoses e hexoses vêm sendo desenvolvidas.…”
Section: Introductionunclassified