Enhanced ethanol production by removal of cutin and epicuticular waxes of wheat straw by plasma assisted pretreatment |
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| Affiliation: | 1. Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark;2. Frederiksberg High School (Science Oriented), Falkoner Plads 2, 2000 Frederiksberg, Denmark;3. Danish Centre for Forest, Landscape and Planning, University of Copenhagen, 1958 Rolighedsvej 23, Copenhagen, Denmark;4. Department of Physics, Technical University of Denmark, 2800 Kgs Lyngby, Denmark;1. College of Engineering, Northeast Agricultural University, Harbin 150030, PR China;2. Department of Biological and Agricultural Engineering, Kansas State University, Manhattan, KS 66506, USA;3. Department of Industrial and Manufacturing Systems Engineering, Kansas State University, Manhattan, KS 66506, USA;1. College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing, 211816, Jiangsu, China;2. School of Chemistry and Physics, Queensland University of Technology, Brisbane, Queensland, 4000, Australia;3. Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Institute of Electromagnetics and Acoustics, Department of Electronic Science, College of Electronic Science and Technology, Xiamen University, Xiamen, 361005, China;4. School of Chemical and Biomolecular Engineering, The University of Sydney, NSW, 2006, Australia;1. International and Inter University Centre for Nano Science and Nanotechnology (IIUCNN), Mahatma Gandhi University, Kottayam, Kerala, India;2. Centre de Recherche C.Huygens, LIMATB (Laboratoired’Ingénierie des Matériaux de Bretagne), Université De Bretagne-Sud, Rue stMaudé – BP 92116, Cedex Lorient 56321 Lorient, France;3. Department of Surface Engineering, Jozef Stefan Institute, Jamovacesta 39, Ljubljana 1000, Slovenia;4. Faculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva 12, Ljubljana 1000, Slovenia;1. Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China;2. Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Institute of Electromagnetics and Acoustics, Department of Electronic Science, School of Physics Science and Technology, Xiamen University, Xiamen 361005, China |
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| Abstract: | The removal of cutin and epicuticular waxes of wheat straw by PAP (plasma assisted pretreatment) was investigated. Wax removal was observed by Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) as chemical change on the surface of most intensively pretreated samples as well as with Scanning Electron Microscopy (SEM) imaging. Compounds resulting from wax degradation were analyzed in the washing water of PAP wheat straw. The wax removal enhanced enzymatic hydrolysis yield and, consequently, the efficiency of wheat straw conversion into ethanol. In total, PAP increased the conversion rate of the raw material carbohydrate content up to 67%, compared to untreated raw material. |
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| Keywords: | Bioethanol Plasma assisted pretreatment Enzymatic hydrolysis Simultaneous saccharification and fermentation Wax removal |
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