Study on Extraction of Xylan from Xinjiang Populus Bark

doi:10.14088/j.cnki.issn0439-8114.2018.03.017

Abstract

Abstract: The bark of Populus euphratica in Xinjiang was collected,and then extracted xylan by alkali extraction method. The sediment of the bark of Populus euphratica was cleaned up and most of the water-soluble substance was washed away with boiled water. After adding the 10% sodium hydroxide solution（m∶V=1∶5） at 70 ℃ for 1 h,the alkali extract which was filtered by eight-layer gauze was added with 0.15 fold volume of 30% of hydrogen peroxide at 70 ℃ for 1 h,for decolorization. The final pH was adjusted to neutral,with ethanol（V∶V=1∶2） to obtain xylan. The dry-based yield was 4.35%. The results showed that the xylan from Populus euphratica could be used as a substrate in xylanase experiment.

Key words: populus（Populus euphratica）, resource utilization, Xinjiang, xylan

CLC Number:

TQ91

WANG Jing, DONG Xiang, QIN Rui, XIONG Hai-rong. Study on Extraction of Xylan from Xinjiang Populus Bark[J]. HUBEI AGRICULTURAL SCIENCES, 2018, 57(3): 75-77.

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