title: Liquefaction of bamboo shoot shell for the production of polyols.
abstract: Bamboo (Dendrocalamus latiflorus Munro) shoot shell (BSS) was liquefied in polyethylene glycol 400 (PEG400) and ethylene glycol (EG) catalyzed by sulfuric acid under atmospheric pressure. The effects of liquefaction conditions such as liquid-solid ratio, temperature, time, catalyst, solvents ratio, and material size on the liquefaction yield of BSS have been investigated. Methods including Elemental analysis, Thermogravimetric analysis, Fourier transform infrared spectroscopy, nuclear magnetic resonance and gas chromatography-mass spectrometry were selected to analyze the characteristics of products in three fractions: an aqueous fraction (AQ), an acetone-soluble fraction (AS) and a residue (RS), respectively. Results showed that the highest liquefaction percentage was 99.79% under the optimal conditions (liquid-solid ratio 6:1; temperature 150°C; reaction time 80min; raw size more than 40 mesh; catalyst mass percentage of solvent 4%; solvent volume ratio 3:1). Polyols could be obtained effectively by the liquefaction of BSS, an agricultural by-product.
authors.affiliation: Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, PR China. Electronic address: lyye@xmu.edu.cn.
authors.forename: Liyi
authors.initials: L
authors.lastname: Ye
authors.affiliation: Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, PR China.
authors.forename: Jingmiao
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, PR China.
authors.forename: Jie
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, PR China. Electronic address: tusong@xmu.edu.cn.
authors.forename: Song
authors.initials: S
authors.lastname: Tu
mesh_terms: D000096:Acetone / Q000737:chemistry; D031723:Bambusa / Q000737:chemistry*; D001709:Biotechnology / Q000379:methods*; D002384:Catalysis; D005591:Chemical Fractionation; D008401:Gas Chromatography-Mass Spectrometry; D009682:Magnetic Resonance Spectroscopy; D018520:Plant Shoots / Q000737:chemistry*; D011108:Polymers / Q000378:metabolism*; D012995:Solubility; D012997:Solvents / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D013818:Thermogravimetry; D013997:Time Factors
chemical_list: D011108:Polymers; D012997:Solvents; C024617:polyol; D000096:Acetone
keywords: Bamboo shoot shell; Liquefaction; Liquefaction percentage; Polyols; Sulfuric acid