Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| 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
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| 2021-11-08 | |
| Source Publication | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
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| ISSN | 2168-0485 |
| Volume | 9Issue:44Pages:14846-14856 |
| Corresponding Author | Li, Lianhua(lilh@ms.giec.ac.cn) ; Song, Bing(bing.song@scionresearch.com) |
| Abstract | 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. |
| Keyword | Alkaline pretreatment Delignification Gamma-valerolactone Alkalinity Suppression effect |
| DOI | 10.1021/acssuschemeng.1c04924 |
| WOS Keyword | IMPROVING METHANE PRODUCTION ; ORGANOSOLV PRETREATMENT ; ENZYMATIC SACCHARIFICATION ; BIOMASS FRACTIONATION ; ANAEROBIC-DIGESTION ; CALCIUM HYDROXIDE ; SODIUM-HYDROXIDE ; LIGNIN ; SOLVENT ; OPTIMIZATION |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key RD Program[2018YFE0111000] ; Youth Innovation Promotion Association CAS[2020345] ; Youth Innovation Promotion Association CAS[7005576] ; Youth Innovation Promotion Association CAS[7005721] |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Engineering |
| Funding Organization | National Key RD Program ; Youth Innovation Promotion Association CAS |
| WOS Subject | Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical |
| WOS ID | WOS:000717346600020 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/35374 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Li, Lianhua; Song, Bing |
| Affiliation | 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 |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | 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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