Effect of Twin-screw Extrusion Conditions on Polysaccharide Extraction from Ganoderma lucidum Spore Powder

doi:10.7506/spkx1002-6630-201116014

FOOD SCIENCE ›› 2011, Vol. 32 ›› Issue (16): 67-70.doi: 10.7506/spkx1002-6630-201116014

• Processing Technology • Previous Articles Next Articles

Effect of Twin-screw Extrusion Conditions on Polysaccharide Extraction from Ganoderma lucidum Spore Powder

JIAO Yan-li1，WEN Sheng-nan2，DU Bing1，YANG Gong-ming1,*

(1. College of Food Science, South China Agricultural University, Guangzhou 510642, China； 2. Guangzhou Meiyi Flavours and Fragrances Co. Ltd., Guangzhou 510642, China)

Received:2018-05-21 Revised:2018-05-21 Online:2011-08-25 Published:2011-07-26

Abstract

Abstract: Ganoderma lucidum spore powder was subjected to twin-screw extrusion before polysaccharide extraction. The effects of material moisture content, screw rotary speed, temperature and feeding speed on the cell wall disruption rate of Ganoderma lucidum spore and polysaccharide yield were explored. The four process conditions were optimized by orthogonal array design method as follows: material moisture content 15%, screw rotary speed 223 r/min, temperature 125 ℃ and feeding speed 155 g/min. The resulting cell wall disruption rate and polysaccharide yield were 78.6% and 2.219%, respectively, which were increased to 83.48% and 2.37% after the second twin-screw extrusion.

Key words: Ganoderma lucidum spore, twin-screw extrusion, cell wall disruption, Ganoderma lucidum polysaccharides

CLC Number:

R284.2

JIAO Yan-li，WEN Sheng-nan，DU Bing，YANG Gong-ming. Effect of Twin-screw Extrusion Conditions on Polysaccharide Extraction from Ganoderma lucidum Spore Powder[J]. FOOD SCIENCE, 2011, 32(16): 67-70.

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Effect of Twin-screw Extrusion Conditions on Polysaccharide Extraction from Ganoderma lucidum Spore Powder

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