Hydrothermal acid treatment for sugar extraction from Golenkinia sp.

Sun A. Choi; Won Il Choi; Jin Suk Lee; Seung Wook Kim; Gye An Lee; Jihyun Yun; Ji Yeon Park

doi:10.1016/j.biortech.2015.04.121

Hydrothermal acid treatment for sugar extraction from Golenkinia sp.

Sun A. Choi, Won Il Choi, Jin Suk Lee, Seung Wook Kim, Gye An Lee, Jihyun Yun, Ji Yeon Park

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

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 (40g/L) were 15.05 and 5.24g/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°C for 15min, under which the glucose- and XMG-extraction yields were 71.7% and 64.9%, respectively. By pH 4.8, 50°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%.

Original language	English
Pages (from-to)	408-411
Number of pages	4
Journal	Bioresource technology
Volume	190
DOIs	https://doi.org/10.1016/j.biortech.2015.04.121
Publication status	Published - 2015 Aug 1

Keywords

Enzymatic hydrolysis
Glucose
Golenkinia sp.
Hydrothermal acid treatment
Sugar extraction

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2015.04.121

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title = "Hydrothermal acid treatment for sugar extraction from Golenkinia sp.",

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 (40g/L) were 15.05 and 5.24g/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°C for 15min, under which the glucose- and XMG-extraction yields were 71.7% and 64.9%, respectively. By pH 4.8, 50°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%.",

keywords = "Enzymatic hydrolysis, Glucose, Golenkinia sp., Hydrothermal acid treatment, Sugar extraction",

author = "Choi, {Sun A.} and Choi, {Won Il} and Lee, {Jin Suk} and Kim, {Seung Wook} and Lee, {Gye An} and Jihyun Yun and Park, {Ji Yeon}",

note = "Funding Information: This work was supported by a grant from the New & Renewable Energy Technology Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) funded by the Korean Ministry of Knowledge Economy (No. 20123010090010 ) and by the Advanced Biomass R&D Center (ABC) of the Global Frontier Project funded by the Ministry of Education, Science and Technology ( ABC-2012-053880 ). Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

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doi = "10.1016/j.biortech.2015.04.121",

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AU - Choi, Sun A.

AU - Choi, Won Il

AU - Lee, Jin Suk

AU - Kim, Seung Wook

AU - Lee, Gye An

AU - Yun, Jihyun

AU - Park, Ji Yeon

N1 - Funding Information: This work was supported by a grant from the New & Renewable Energy Technology Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) funded by the Korean Ministry of Knowledge Economy (No. 20123010090010 ) and by the Advanced Biomass R&D Center (ABC) of the Global Frontier Project funded by the Ministry of Education, Science and Technology ( ABC-2012-053880 ). Publisher Copyright: © 2015 Elsevier Ltd.

PY - 2015/8/1

Y1 - 2015/8/1

N2 - 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 (40g/L) were 15.05 and 5.24g/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°C for 15min, under which the glucose- and XMG-extraction yields were 71.7% and 64.9%, respectively. By pH 4.8, 50°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%.

AB - 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 (40g/L) were 15.05 and 5.24g/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°C for 15min, under which the glucose- and XMG-extraction yields were 71.7% and 64.9%, respectively. By pH 4.8, 50°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%.

KW - Enzymatic hydrolysis

KW - Glucose

KW - Golenkinia sp.

KW - Hydrothermal acid treatment

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Hydrothermal acid treatment for sugar extraction from Golenkinia sp.

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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