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Suppression Effect of Gamma-Valerolactone on the Mild Alkaline Pretreatment of Hybrid Pennisetum
Fan, Yafeng1,2,3,4; Li, Lianhua1,2,3; Yang, Gaixiu1,2,3; Sun, Yongming1,2,3; He, Linsong1,2,3; Wu, Peiwen1,2,3; Lam, Chun Ho5,6; Song, Bing7
2021-11-08
发表期刊ACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
卷号9期号:44页码:14846-14856
通讯作者Li, Lianhua(lilh@ms.giec.ac.cn) ; Song, Bing(bing.song@scionresearch.com)
摘要Gamma-valerolactone (GVL) assisted NaOH/water pretreatment for hybrid pennisetum delignification was first investigated. Contrary to the hypothesized results, the addition of GVL significantly suppressed the delignification and hemicellulose removal by mild alkaline pretreatment (37 degrees C for 24 h). An addition of GVL to GVL/NaOH molar ratio of 1/1 resulted in lignin removal at similar to 23% compared with that at similar to 75% without GVL. This suppression effect was further confirmed by scanning electron microscopy and Fourier-transform infrared spectroscopy. The extracted lignin was further characterized by two-dimensional heteronuclear single quantum coherence nuclear magnetic resonance spectroscopy, suggesting that the addition of GVL suppressed the decomposition of large lignin molecules by NaOH/water and the release of hemicellulose, resulting in extracted lignin with lower molecular weights and less hemicellulose. The decrease in the partial alkalinity (PA) of alkaline solutions caused by GVL addition was likely the main reason for the suppressed delignification, suggested by the good correlation between PA and delignification in both GVL/NaOH/water and NaOH/water (R-2 = 0.967). This study suggested that solvent-assisted alkaline pretreatment can also result in an unwanted suppression effect, and the changes in PA could be referred to as an indicator while selecting organic solvents.
关键词Alkaline pretreatment Delignification Gamma-valerolactone Alkalinity Suppression effect
DOI10.1021/acssuschemeng.1c04924
关键词[WOS]IMPROVING METHANE PRODUCTION ; ORGANOSOLV PRETREATMENT ; ENZYMATIC SACCHARIFICATION ; BIOMASS FRACTIONATION ; ANAEROBIC-DIGESTION ; CALCIUM HYDROXIDE ; SODIUM-HYDROXIDE ; LIGNIN ; SOLVENT ; OPTIMIZATION
收录类别SCI
语种英语
资助项目National Key RD Program[2018YFE0111000] ; Youth Innovation Promotion Association CAS[2020345] ; Youth Innovation Promotion Association CAS[7005576] ; Youth Innovation Promotion Association CAS[7005721]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Engineering
项目资助者National Key RD Program ; Youth Innovation Promotion Association CAS
WOS类目Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical
WOS记录号WOS:000717346600020
出版者AMER CHEMICAL SOC
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/35374
专题中国科学院广州能源研究所
通讯作者Li, Lianhua; Song, Bing
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China
3.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Peoples R China
4.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China
5.City Univ Hong Kong, Sch Energy & Environm, Kowloon Tong, Hong Kong, Peoples R China
6.City Univ Hong Kong, State Key Lab Marine Pollut, Kowloon Tong, Hong Kong, Peoples R China
7.Scion, Te Papa Tipu Innovat Pk, Rotorua 3046, New Zealand
第一作者单位中国科学院广州能源研究所
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Fan, Yafeng,Li, Lianhua,Yang, Gaixiu,et al. Suppression Effect of Gamma-Valerolactone on the Mild Alkaline Pretreatment of Hybrid Pennisetum[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2021,9(44):14846-14856.
APA Fan, Yafeng.,Li, Lianhua.,Yang, Gaixiu.,Sun, Yongming.,He, Linsong.,...&Song, Bing.(2021).Suppression Effect of Gamma-Valerolactone on the Mild Alkaline Pretreatment of Hybrid Pennisetum.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,9(44),14846-14856.
MLA Fan, Yafeng,et al."Suppression Effect of Gamma-Valerolactone on the Mild Alkaline Pretreatment of Hybrid Pennisetum".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 9.44(2021):14846-14856.
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