Journal
INDUSTRIAL CROPS AND PRODUCTS
Volume 113, Issue -, Pages 128-134Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.indcrop.2018.01.026
Keywords
Wheat straw; MBSP; Enzymatic hydrolysis; XOS; Magnesium lignosulfonate
Categories
Funding
- National Natural Science Foundation of China [51561145015]
- Major Program of the Natural Science Foundation of Jiangsu Higher Education of China [16KJA220004]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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Full utilization of all three major components of biomass (glucan, xylan and lignin) is considered to be the key to commercialization of bio-refinery process of biomass. In this work, based on pretreatment severity (PS), a controlled magnesium bisulfite pretreatment (MBSP) was developed to produce ethanol, xylo-oligosaccharides (XOS) and magnesium lignosulfonate (ML) simultaneously. After MBSP at PS 3.66 (170 degrees C for 40 min), about 136 g of ethanol, 98 g of XOS and 133 g of ML were achieved from1 kg raw wheat straw. As high values-added chemicals, XOS has many applications in food and pharmaceutical industries while ML can be used as surfactants and dispersing agents. These results suggest that a controlled MBSP offers an effective way to fully utilize its components and coproduce ethanol, XOS and ML from wheat straw.
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