Characterization of vinasses from five certified brands of origin (CBO) and use as economic nutrient for the xylitol production by Debaryomyces hansenii

2010 ◽  
Vol 101 (7) ◽  
pp. 2379-2388 ◽  
Author(s):  
José Manuel Salgado ◽  
Elena Martínez Carballo ◽  
Belén Max ◽  
José Manuel Domínguez
Keyword(s):  
Debaryomyces Hansenii ◽  
Xylitol Production

Characterization of xylitol dehydrogenase from debaryomyces hansenii

1996 ◽  
Vol 56 (1) ◽  
pp. 79-87 ◽  
Author(s):  
Francisco M. Gírio ◽  
Fátima Pelica ◽  
M. T. Amaral-Collaço
Keyword(s):  
Debaryomyces Hansenii ◽  
Xylitol Dehydrogenase

scholarly journals Identification and Characterization of Oleaginous Yeast Isolated from Kefir and Its Ability to Accumulate Intracellular Fats in Deproteinated Potato Wastewater with Different Carbon Sources

2017 ◽  
Vol 2017 ◽  
pp. 1-19 ◽  
Author(s):  
Iwona Gientka ◽  
Marek Kieliszek ◽  
Karolina Jermacz ◽  
Stanisław Błażejak
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fossil Fuels ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Carbon Sources ◽  
Debaryomyces Hansenii ◽  
Industry Waste ◽  
Identification And Characterization

The search for efficient oleaginous microorganisms, which can be an alternative to fossil fuels and biofuels obtained from oilseed crops, has been going on for many years. The suitability of microorganisms in this regard is determined by their ability to biosynthesize lipids with preferred fatty acid profile along with the concurrent utilization of energy-rich industrial waste. In this study, we isolated, characterized, and identified kefir yeast strains using molecular biology techniques. The yeast isolates identified wereCandida inconspicua,Debaryomyces hansenii,Kluyveromyces marxianus,Kazachstania unispora, andZygotorulaspora florentina. We showed that deproteinated potato wastewater, a starch processing industry waste, supplemented with various carbon sources, including lactose and glycerol, is a suitable medium for the growth of yeast, which allows an accumulation of over 20% of lipid substances in its cells. Fatty acid composition primarily depended on the yeast strain and the carbon source used, and, based on our results, most of the strains met the criteria required for the production of biodiesel. In particular, this concerns a significant share of saturated fatty acids, such as C16:0 and C18:0, and unsaturated fatty acids, such as C18:1 and C18:2. The highest efficiency in lipid biosynthesis exceeded 6.3 g L−1.Kazachstania unisporawas able to accumulate the high amount of palmitoleic acid.

Carbon Material and Bioenergetic Balances of Xylitol Production from Corncobs by Debaryomyces hansenii

2003 ◽  
Vol 19 (3) ◽  
pp. 706-713 ◽  
Author(s):  
B. Rivas ◽  
P. Torre ◽  
J.M. Dominguez ◽  
P. Perego ◽  
A. Converti ◽  
...  
Keyword(s):  
Carbon Material ◽  
Debaryomyces Hansenii ◽  
Xylitol Production

Study of the potential of the air lift bioreactor for xylitol production in fed-batch cultures by Debaryomyces hansenii immobilized in alginate beads

2013 ◽  
Vol 98 (1) ◽  
pp. 151-161 ◽  
Author(s):  
Belinda Pérez-Bibbins ◽  
Ricardo Pinheiro de Souza Oliveira ◽  
Ana Torrado ◽  
María Guadalupe Aguilar-Uscanga ◽  
José Manuel Domínguez
Keyword(s):  
Debaryomyces Hansenii ◽  
Alginate Beads ◽  
Xylitol Production ◽  
Fed Batch ◽  
Batch Cultures ◽  
Air Lift

scholarly journals Characterization of a Salt-induced DhSSA Gene from the Extreme Halophilic Yeast Debaryomyces hansenii

2014 ◽  
Vol 2 (3) ◽  
pp. 76-83
Author(s):  
Hsiu-Fung Chao ◽  
Yi-Fang Hsu ◽  
Li-Tine Wang ◽  
Yung-Fu Yen
Keyword(s):  
Debaryomyces Hansenii

scholarly journals A Physiological Characterization in Controlled Bioreactors Reveals a Novel Survival Strategy for Debaryomyces hansenii at High Salinity and Confirms its Halophilic Behavior

2020 ◽  
Author(s):  
Clara Navarrete ◽  
August T. Frost ◽  
Laura Ramos-Moreno ◽  
Mette R. Krum ◽  
José L. Martínez
Keyword(s):  
Carbon Metabolism ◽  
Debaryomyces Hansenii ◽  
Model Organism ◽  
Central Carbon Metabolism ◽  
Culture Conditions ◽  
Physiological Characterization ◽  
Behavioural Patterns ◽  
Central Carbon ◽  
First Time

AbstractDebaryomyces hansenii is traditionally described as a halotolerant non-conventional yeast, being the model organism for the study of osmo- and salt tolerance mechanisms in eukaryotic systems for the past 30 years.However, unravelling of D. hansenii’s biotechnological potential has always been difficult due to the persistent limitations in the availability of efficient molecular tools described for this yeast. Additionally, there is a lack of consensus and contradictory information along the recent years that limits a comprehensive understanding of its central carbon metabolism, mainly due to a lack of physiological studies in controlled and monitored environments. Moreover, there is controversy about the diversity in the culture conditions (media composition, temperature and pH among others) used by different groups, which makes it complicated when trying to get significant conclusions and behavioural patterns.In this work, we present for the first time a physiological characterization of D. hansenii in batch cultivations using highly instrumented and controlled lab-scale bioreactors. Our findings contribute to a more complete picture of the central carbon metabolism and the external pH influence on the yeast ability to tolerate high Na+ and K+ concentrations. Finally, the controversial halophilic/halotolerant character of this yeast is further clarified.

scholarly journals Xylitol Production from Oil Palm Empty Fruit Bunches (OPEFB) Via Simultaneous Enzymatic Hydrolysis and Fermentation Process

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Efri Mardawati ◽  
Nadya Maharani ◽  
Dwi Wahyudha Wira ◽  
Budi Mandra Harahap ◽  
Tri Yuliana ◽  
...  
Keyword(s):  
Oil Palm ◽  
Substrate Concentration ◽  
Specific Growth ◽  
Descriptive Analysis ◽  
Debaryomyces Hansenii ◽  
Raw Material ◽  
Xylitol Production ◽  
Empty Fruit Bunches ◽  
Ssf Process ◽  
Specific Growth Rates

Oil palm empty fruit bunches (OPEFB) are the waste of palm oil processing and lignocellulosic biomass that can be used as raw material for xylitol production. In this research, bioconversion of xylitol using the Simultaneous Saccharification and Fermentation (SSF) process in one reactor with a short time and could save the cost. Pretreatment requires to degrade the lignin compound with thermal pretreatment. Hydrolysis of OPEFB performs enzymatically by commercial xylanase enzyme that is Cellic Htec2 and continued with fermentation by yeast Debaryomyces hansenii. The research used experimental and descriptive analysis that covers of variation of OPEFB substrate concentration (7.5%, 10%, 15%, 20%) on specific growth rate (µ), the yield of xylitol and substrate utilization. The results showed that an increase of OPEFB substrate concentration affected by the increase of specific growth rates  (μ) are 0.091/h, 0.094/h, 0.095/h and 0.126/h. It also affected to the decreasing of xylitol yield on 42 hours fermentation are 0.201 g/g; 0.189 g/g; 0.170 g/g; and 0.104 g/g.

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