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Open AccessArticle

A New Environmentally-Friendly System for Extracting Cellulose from Corn Straw: The Low Temperature Laccase System

1
College of Materials Science and Engineering, heilongjiang province Key Laboratory of Polymeric Composition, Qiqihar University; Wenhua Street 42, Qiqihar 161006, China
2
Daqing Oilfield Construction design and Research Institute, XiLing road 32, Daqing 1637241, China
3
Daqing Petrochemical Research Center, Petrochemical Research Institute, China National Petroleum Corporation, Chengxiang Road 2, Daqing 163714, China
*
Authors to whom correspondence should be addressed.
Materials 2020, 13(2), 437; https://doi.org/10.3390/ma13020437
Received: 23 December 2019 / Revised: 14 January 2020 / Accepted: 14 January 2020 / Published: 16 January 2020
Corn straw is an agricultural waste. The system for extracting cellulose from corn straw at a high temperature has been widely reported by researchers. However, the system for extracting cellulose from corn straw at a low temperature has been rarely reported. In this paper, a new system for extracting cellulose from corn straw at a low temperature was reported for the first time. This new system is designated as the low temperature laccase system (LTLS). Cellulose was successfully extracted from corn straw by the LTLS, and the used solution could be recycled. Therefore, the low temperature laccase system is an environmentally-friendly system. The cellulose content in corn straw is 30–40%. The yield of cellulose extracted by LTLS was 33%. The obtained cellulose product was creamy white. The extracted cellulose samples were characterized by using infrared spectroscopy (IR), thermogravimetry (TG), and X-ray diffraction (XRD). The results were consistent with that of standard cellulose. We confirmed that the LTLS extracted cellulose from corn straw with high purity. View Full-Text
Keywords: cellulose; corn straw; low temperature; laccase cellulose; corn straw; low temperature; laccase
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MDPI and ACS Style

Song, H.; Jia, H.; Wang, Q.; Zhao, X.; Yang, G.; Zhang, M.; Zhou, H.; Xu, S.; Zang, Y.; Wang, Y.; Ma, L. A New Environmentally-Friendly System for Extracting Cellulose from Corn Straw: The Low Temperature Laccase System. Materials 2020, 13, 437.

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