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| Effects of steam explosion pretreatment on composition, microstructure and oil extraction rate of Cyperus esculentus |
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| DOI：10.19902/j.cnki.zgyz.1003-7969.230478 |
| KeyWord:Cyperus esculentus steam explosion cell wall oil extraction |
| FundProject: |
| Author Name | Affiliation | | YANG Tianxiang1, XUE Huiting2, REN Yufei1, LI Guanhua1, ZHANG Dejian1 | （1.Inner Mongolia Autonomous Region University Biological Germplasm Resources Conservation and
Utilization Engineering Research Center, School of Life Sciences, Inner Mongolia University,
Hohhot 010070,China； 2.College of Basic Medicine, Inner Mongolia Medical
University, Hohhot 010110,China） |
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| Abstract: |
| In order to improve the extraction rate of Cyperus esculentus oil, the Cyperus esculentus was pretreated with steam explosion for different time, and the effects of steam explosion pretreatment on the chemical composition, microstructure and oil extraction rate of Cyperus esculentus were explored. The results showed that steam explosion increased the contents of fat soluble matter and water soluble matter, decreased the contents of cellulose, hemicellulose and pectin, and increased the content of lignin. The main chemical bonds of Cyperus esculentus cell wall were broken or modified by steam explosion pretreatment. After steam explosion for 30 min, the shape of Cyperus esculentus changed obviously, the cracks between the cells became larger, the cell structure was damaged, and the arrangement was disorderly. After steam explosion, the oil extraction rate of Cyperus esculentus increased to 18.41%, which was 26.27% higher than that before steam explosion (14.58%). In conclusion, the method of steam explosion for wall rupture to promote oil extraction of Cyperus esculentus is feasible. |
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