Integrated production of ethanol and xylitol from Brassica juncea using Candida sojae JCM 1644

Pant, Shailja; Ritika, .; Prakash, Anand; Kuila, Arindam

doi:10.1016/j.biortech.2022.126903

Cited by 16 publications

(4 citation statements)

References 40 publications

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“…[29,43,44] CABH showed a composition rich in carbohydrates, totaling over 50 g Á L À1 , especially glucose (22.0 g Á L À1 ), xylose (20.5 g Á L À1 ), and arabinose (12.2 g Á L À1 ). The release of some compounds that can be toxic to cell growth from acid hydrolysis occurred, such as acetic acid (1.8 g Á L À1 ) and formic acid (0.1 g Á L À1 ); however, the presence of these acids does not seem to have inhibited yeast growth, once it reached cell growth of 10.4 g Á L À1 at 24 h. Literature reports [45,46] that when the acetyl structure of hemicelluloses is degraded, organic acids, such as acetic acid, are released. Furan compounds, such as furfural and 5-hydroxymethylfurfural (5-HMF), are generated through the dehydration of pentose and hexose sugars, respectively.…”

Section: Xylitol Production From Cabhmentioning

confidence: 99%

“…This may indicate that, in this new condition of more efficient aeration, the microorganism may have had a metabolic deviation to produce other products. Aeration may have led the yeast K. marxianus CCA510 to produce 2-phenyl-ethanol (2-FE), a higher aromatic alcohol widely used in the perfume industry, [54] that was detected [50] Candida guilliermondii Sugarcane bagasse hydrolysate 13.8 10.2 0.74 0.17 Hor et al [51] Candida boidinii Olive stones hydrolysate 60.0 34.2 0.57 0.14 Romero-García et al [22] Candida sojae Mustard iomass hydrolysate 50.0 12.4 0.62 0.17 Pant et al [45] Candida tropicalis Typha latifolia hydrolysate 13.3 6.2 0.65 0.14 Goli and Hameeda [52] Debaryomyces hansenii Synthetic medium 5.0 1.82 0.02 0.03 Kasbawati et al [29] Kluyveromyces marxianus…”

Section: Xylitol Production From Cabhmentioning

confidence: 99%

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Xylitol production by different yeasts: Kinetic study and biosynthesis from cashew apple bagasse hydrolysate

et al. 2022

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Xylitol is a polyol with sweetening and anti‐cariogenic properties and is highly relevant to the food and pharmaceutical industries. This work evaluates xylitol production by three yeasts (Candida tropicalis, Kluyveromyces marxianus CCA510, and Kluyveromyces marxianus ATCC 36907) from different carbon sources: D‐xylose (medium xylose [MX]) and D‐xylose plus D‐glucose (medium xylose and glucose [MXG]). The potential of xylitol production from hemicellulose hydrolysate of cashew bagasse was evaluated. In MX medium, K. marxianus CCA510 was the strain that produced higher xylitol concentration (17.04 g · L−1). However, K. marxianus ATCC 36907 and C. tropicalis produced 13.22 and 9.54 g · L−1, respectively. On the other hand, in MXG medium, probably due to the presence of glucose as a carbon source, lower xylitol production was observed for all microorganisms: the CCA510 strain produced 13.30 g · L−1 of xylitol, while C. tropicalis and ATCC 36907 produced 11.42 and 0.64 g · L−1, respectively. Additionally, the production of ethanol as a secondary product was also noted. According to the results of the kinetic study, xylitol formation is associated with the growth and consumption of substrate (xylose), which is a typical behaviour of a primary metabolite for the three yeasts. Furthermore, the strain K. marxianus CCA510 was able to produce xylitol from cashew apple bagasse hydrolysate (CABH), evidencing its potential for use in bioprocesses related to biorefinery. In view of the results reported here, it was possible to clarify in detail the kinetics of xylitol production by the yeast strains evaluated, which had the ability to produce xylitol from CABH, providing added value to this agro‐industrial residue.

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Section: Xylitol Production From Cabhmentioning

confidence: 99%

Section: Xylitol Production From Cabhmentioning

confidence: 99%

Xylitol production by different yeasts: Kinetic study and biosynthesis from cashew apple bagasse hydrolysate

et al. 2022

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“…Hence, utilizing corncob as a substrate source for xylitol, ethanol and other value-added products in an integrated biorefinery framework is important. Effective biorefinery deployment depends on the successful conversion of all the sugars (C5 and C6) of feedstocks into multiple value-added products [ 12 ]. In this regard, Du et al [ 13 ], produced xylitol (0.82 g/g) and bioethanol (0.41 g/g) using Kluyveromyces marxianus from non-detoxified corn cob.…”

Section: Introductionmentioning

confidence: 99%

Development of engineered Candida tropicalis strain for efficient corncob-based xylitol-ethanol biorefinery

Singh,

Deeba,

Kumar

et al. 2023

Microb Cell Fact

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Background Xylitol has a wide range of applications in the pharmaceuticals, cosmetic, food and beverage industry. Microbial xylitol production reduces the risk of contamination and is considered as environment friendly and sustainable compared to the chemical method. In this study, random mutagenesis and genetic engineering approaches were employed to develop Candida tropicalis strains with reduced xylitol dehydrogenase (XDH) activity to eliminate co-substrate requirement for corn cob-based xylitol-ethanol biorefinery. Results The results suggest that when pure xylose (10% w/v) was fermented in bioreactor, the Ethyl methane sulfonate (EMS) mutated strain (C. tropicalis K2M) showed 9.2% and XYL2 heterozygous (XYL2/xyl2Δ::FRT) strain (C. tropicalis K21D) showed 16% improvement in xylitol production compared to parental strain (C. tropicalis K2). Furthermore, 1.5-fold improvement (88.62 g/L to 132 g/L) in xylitol production was achieved by C. tropicalis K21D after Response Surface Methodology (RSM) and one factor at a time (OFAT) applied for media component optimization. Finally, corncob hydrolysate was tested for xylitol production in biorefinery mode, which leads to the production of 32.6 g/L xylitol from hemicellulosic fraction, 32.0 g/L ethanol from cellulosic fraction and 13.0 g/L animal feed. Conclusions This work, for the first time, illustrates the potential of C. tropicalis K21D as a microbial cell factory for efficient production of xylitol and ethanol via an integrated biorefinery framework by utilising lignocellulosic biomass with minimum waste generation.

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“…These strategies were based on either mono-production of xylitol or bioethanol or combined production via process integration (co-production) [ 7 ]. The xylitol and ethanol co-production scenario is considered more profitable because this process increases the economics of low bioethanol production by adding another high-value product, namely xylitol [ 8 ]. In addition, from a biorefinery perspective, through this process, all hemicellulose and cellulose fractions can be appropriately utilized; thus, waste products can be minimized [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

An Integrated Process for the Xylitol and Ethanol Production from Oil Palm Empty Fruit Bunch (OPEFB) Using Debaryomyces hansenii and Saccharomyces cerevisiae

et al. 2022

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Oil palm empty fruit bunch (OPEFB) is the largest biomass waste from the palm oil industry. The OPEFB has a lignocellulose content of 34.77% cellulose, 22.55% hemicellulose, and 10.58% lignin. Therefore, this material’s hemicellulose and cellulose content have a high potential for xylitol and ethanol production, respectively. This study investigated the integrated microaerobic xylitol production by Debaryomyces hansenii and anaerobic ethanol semi simultaneous saccharification and fermentation (semi-SSF) by Saccharomyces cerevisiae using the same OPEFB material. A maximum xylitol concentration of 2.86 g/L was obtained with a yield of 0.297 g/gxylose. After 96 h of anaerobic fermentation, the maximum ethanol concentration was 6.48 g/L, corresponding to 71.38% of the theoretical ethanol yield. Significant morphological changes occurred in the OPEFB after hydrolysis and xylitol and ethanol fermentation were shown from SEM analysis.

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Integrated production of ethanol and xylitol from Brassica juncea using Candida sojae JCM 1644

Cited by 16 publications

References 40 publications

Xylitol production by different yeasts: Kinetic study and biosynthesis from cashew apple bagasse hydrolysate

Xylitol production by different yeasts: Kinetic study and biosynthesis from cashew apple bagasse hydrolysate

Development of engineered Candida tropicalis strain for efficient corncob-based xylitol-ethanol biorefinery

An Integrated Process for the Xylitol and Ethanol Production from Oil Palm Empty Fruit Bunch (OPEFB) Using Debaryomyces hansenii and Saccharomyces cerevisiae

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