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Article

Evaluation of Xylooligosaccharides Production for a Specific Degree of Polymerization by Liquid Hot Water Treatment of Tropical Hardwood

1
Department of Wood Science, Faculty of Forestry, The University of British Columbia, 2424 Main Mall, Vancouver, BC V6T 1Z4, Canada
2
Department of Forest Science, College of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea
3
Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology, Ulsan 44429, Korea
4
Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
*
Authors to whom correspondence should be addressed.
These authors have contributed equally to this work.
Academic Editor: Ana Blandino
Foods 2021, 10(2), 463; https://doi.org/10.3390/foods10020463
Received: 22 December 2020 / Revised: 12 February 2021 / Accepted: 13 February 2021 / Published: 20 February 2021
(This article belongs to the Special Issue Value Added Products from Agro-Food Residues)
Eucalyptus pellita is known as attractive biomass, and it has been utilized for eucalyptus oil, furniture, and pulp and paper production that causes a significant amount of byproducts. Liquid hot water treatment depending on combined severity factor (CSF) was subjected to isolate hemicellulose fraction from E. pellita and to produce xylooligosaccharides (XOS). The xylan extraction ratio based on the initial xylan content of the feedstock was maximized up to 77.6% at 170 °C for 50 min condition (CSF: 1.0), which had accounted for XOS purity of 76.5% based on the total sugar content of the liquid hydrolysate. In this condition, the sum of xylobiose, xylotriose, and xylotetraose which has a low degree of polymerization (DP) of 2 to 4 was determined as 80.6% of the total XOS. The highest XOS production score established using parameters including the xylan extraction ratio, XOS purity, and low DP XOS ratio was 5.7 at CSF 1.0 condition. XOS production score evaluated using the CSF is expected to be used as a productivity indicator of XOS in the industry (R-squared value: 0.92). View Full-Text
Keywords: xylooligosaccharides (XOS); liquid hot water treatment; Eucalyptus pellita; combined severity factor; XOS production score xylooligosaccharides (XOS); liquid hot water treatment; Eucalyptus pellita; combined severity factor; XOS production score
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MDPI and ACS Style

Jang, S.-K.; Kim, J.-H.; Choi, J.-H.; Cho, S.-M.; Kim, J.-C.; Kim, H.; Choi, I.-G. Evaluation of Xylooligosaccharides Production for a Specific Degree of Polymerization by Liquid Hot Water Treatment of Tropical Hardwood. Foods 2021, 10, 463. https://doi.org/10.3390/foods10020463

AMA Style

Jang S-K, Kim J-H, Choi J-H, Cho S-M, Kim J-C, Kim H, Choi I-G. Evaluation of Xylooligosaccharides Production for a Specific Degree of Polymerization by Liquid Hot Water Treatment of Tropical Hardwood. Foods. 2021; 10(2):463. https://doi.org/10.3390/foods10020463

Chicago/Turabian Style

Jang, Soo-Kyeong, Jong-Hwa Kim, June-Ho Choi, Seong-Min Cho, Jong-Chan Kim, Hoyong Kim, and In-Gyu Choi. 2021. "Evaluation of Xylooligosaccharides Production for a Specific Degree of Polymerization by Liquid Hot Water Treatment of Tropical Hardwood" Foods 10, no. 2: 463. https://doi.org/10.3390/foods10020463

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