Hydrothermal acid treatment for sugar extraction from Golenkinia sp.
- Authors
- Choi, Sun-A; Choi, Won-Il; Lee, Jin-Suk; Kim, Seung Wook; Lee, Gye-An; Yun, Jihyun; Park, Ji-Yeon
- Issue Date
- 8월-2015
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Hydrothermal acid treatment; Sugar extraction; Golenkinia sp.; Enzymatic hydrolysis; Glucose
- Citation
- BIORESOURCE TECHNOLOGY, v.190, pp.408 - 411
- Indexed
- SCIE
SCOPUS
- Journal Title
- BIORESOURCE TECHNOLOGY
- Volume
- 190
- Start Page
- 408
- End Page
- 411
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/92970
- DOI
- 10.1016/j.biortech.2015.04.121
- ISSN
- 0960-8524
- Abstract
- In this study, hydrothermal acid treatment for efficient recovery of sugar from Golenkinia sp. was investigated. The initial glucose and XMG (xylose, mannose, and galactose) contents of a prepared Golenkinia sp. solution (40 g/L) were 15.05 and 5.24 g/L, respectively. The microalgal cell walls were hydrolyzed, for sugar recovery, by enzymatic saccharification and/or hydrothermal acid treatment. Among the various hydrothermal acid treatment conditions, the most optimal were the 2.0% H2SO4 concentration at 150 degrees C for 15 min, under which the glucose-and XMG-extraction yields were 71.7% and 64.9%, respectively. By pH 4.8, 50 degrees C enzymatic hydrolysis after optimal hydrothermal acid treatment, the glucose-and XMG-extraction yields were additionally increased by 8.3% and 0.8%, respectively. After hydrothermal acid treatment, the combination with the enzymatic hydrolysis process improved the total sugar yield of Golenkinia sp. to 75.4%. (C) 2015 Elsevier Ltd. All rights reserved.
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