Xylitol biosynthesis enhancement by
            <i>Candida tropicalis</i>
            via medium, process parameter optimization, and co-substrate supplementation

Jain, Vasundhara; Ghosh, Sanjoy

doi:10.1080/10826068.2023.2209897

Cited by 5 publications

(1 citation statement)

References 41 publications

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“…Cell growth and xylitol biosynthesis are influenced by temperature due to the cell's ability to transport xylose from the fermentation medium to the membrane, and the effectiveness of intracellular enzymes involved in xylose assimilation is temperature-dependent. This suggests that as the temperature decreases, the availability of xylose gradually decreases in Candida species (Jain & Ghosh, 2024). The increase in temperature from 25 to 35°C was beneficial for both cell growth and xylitol yield in this study, consistent with another investigation that examined the impact of four temperature settings (28 °C, 30 °C, 32 °C, and 34 °C) on xylitol production in a bioreactor.…”

Section: Effect Of Bioconversion Parameterssupporting

confidence: 90%

A Sustainable Approach for Xylitol Production from Pistachio Shell using Candida tropicalis

Hazal,

Özbek,

Yılmaztekin

et al. 2024

Preprint

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In this study, first xylose rich hydrolysate was obtained from pistachio shell using microwave-assisted high-pressure CO2/H2O hydrolysis and then xylitol was produced biotechnologically from xylose-rich hydrolysate by Candida tropicalis. The maximum xylose concentration and yield attained were 14.58 ± 0.11 g/L and 62.01 ± 0.92%, respectively. Before the bioconversion process, hydrolysate was detoxified to remove HMF and furfural with activated charcoal. Box Behnken design was implemented to investigate the effect of temperature, pH and aeration rate on xylitol yield during bioconversion in bioreactor. The highest xylitol yield of 0.94 g/g was recorded at 72 h under optimized conditions of 34.5°C, pH 4.5 and 1.2 vvm. Recovery and purification of xylitol from the fermentation medium was achieved using ethanol as an antisolvent. Xylitol was recovered with a yield of 68.4% from culture medium by crystallization. Based on the findings of this study, it is conceivable to propose a sustainable and environmentally friendly process for recovering and purifying xylitol from pistachio shell hydrolysate.

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Section: Effect Of Bioconversion Parameterssupporting

confidence: 90%

A Sustainable Approach for Xylitol Production from Pistachio Shell using Candida tropicalis

Hazal,

Özbek,

Yılmaztekin

et al. 2024

Preprint

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A sustainable approach for xylitol production from pistachio shell using Candida tropicalis

Hazal,

Özbek,

Yılmaztekin

et al. 2024

Biofuels Bioprod Bioref

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This study presents a novel approach for producing xylitol from xylose‐rich hydrolysate derived from pistachio shells. Initially, xylose‐rich hydrolysate was obtained through microwave‐assisted high‐pressure CO2/H2O hydrolysis, achieving a maximum xylose concentration of 14.58 ± 0.11 g L−1 and yield of 62.01 ± 0.92% (w w−1). Prior to the bioconversion process, the hydrolysate was detoxified using activated charcoal to remove inhibitory compounds such as hydroxymethylfurfural (HMF) and furfural. Xylitol production from the detoxified hydrolysate was carried out biotechnologically using the yeast Candida tropicalis. A Box–Behnken design was implemented to investigate the effect of temperature, pH, and aeration rate on xylitol yield during bioconversion in bioreactor. The highest xylitol yield of 0.94 g g−1 was recorded at 72 h under optimized conditions of 34.5 °C, pH 4.5, and 1.2 vvm. Recovery and purification of xylitol from the fermentation medium was achieved using ethanol as an antisolvent. Xylitol was recovered with a yield of 68.4% from culture medium by crystallization. Based on the findings of this study, a sustainable and environmentally friendly process can be proposed for recovering and purifying xylitol from pistachio shell hydrolysate.

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Sequential fermentation with in situ distillation for bioethanol and xylitol production from mixed sugars: a novel approach for lignocellulosic material-based biorefineries

Jain

Awasthi

Aruna

et al. 2023

Biomass Conv. Bioref.

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Xylitol biosynthesis enhancement by Candida tropicalis via medium, process parameter optimization, and co-substrate supplementation

Cited by 5 publications

References 41 publications

A Sustainable Approach for Xylitol Production from Pistachio Shell using Candida tropicalis

A Sustainable Approach for Xylitol Production from Pistachio Shell using Candida tropicalis

A sustainable approach for xylitol production from pistachio shell using Candida tropicalis

Sequential fermentation with in situ distillation for bioethanol and xylitol production from mixed sugars: a novel approach for lignocellulosic material-based biorefineries

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