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Optimized Bioconversion of Xylose Derived from Pre-Treated Crop Residues into Xylitol by Using Candida boidinii by Bedő, Soma ;Fehér, Anikó ;Khunnonkwao, Panwana ;Jantama, Kaemwich ;Fehér, Csaba is a Agricultural and Biological Sciences article available to read on EtoBox.
What is Optimized Bioconversion of Xylose Derived from Pre-Treated Crop Residues into Xylitol by Using Candida boidinii about?
Crop residues can serve as low-cost feedstocks for microbial production of xylitol, which offers many advantages over the commonly used chemical process. However, enhancing the efficiency of xylitol fermentation is still a barrier to industrial implementation. In this study, the effects of oxygen transfer rate (OTR) (1.1, 2.1, 3.1 mmol O2/(L × h)) and initial xylose concentration (30, 55, 80 g/L) on xylitol production of Candida boidinii NCAIM Y.01308 on xylose medium were investigated and optimised by response surface methodology, and xylitol fermentations were performed on xylose-rich hydrolysates of wheat bran and rice straw. High values of maximum xylitol yields (58–63%) were achieved at low initial xylose concentration (20–30 g/L) and OTR values (1.1–1.5 mmol O2/(L × h)). The highest value for maximum xylitol productivity (0.96 g/(L × h)) was predicted at 71 g/L initial xylose and 2.7 mmol O2/(L × h) OTR. Maximum xylitol yield and productivity obtained on wheat bran hydrolysate were 60% and 0.58 g/(L × h), respectively. On detoxified and supplemented hydrolysate of rice straw, maximum xylitol yield and productivity of 30% and 0.19 g/(L × h) were achieved. This study revealed t
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It is typically read by researchers, students, and practitioners in Agricultural and Biological Sciences.
- Author
- Bedő, Soma ;Fehér, Anikó ;Khunnonkwao, Panwana ;Jantama, Kaemwich ;Fehér, Csaba
- Publisher
- MDPI AG
- Published
- 2021
- Language
- EN
- Field
- Agricultural and Biological Sciences (Life Sciences)