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A full utilization of rice husk to evaluate phytochemical bioactivities and prepare cellulose nanocrystals

文献类型: 外文期刊

作者: Gao, Yue 1 ; Guo, Xinbo 1 ; Liu, Yu 2 ; Fang, Zhiqiang 2 ; Zhang, Mingwei 3 ; Zhang, Ruifen 3 ; You, Lijun 1 ; Li, Tong 4 ;

作者机构: 1.South China Univ Technol, Sch Food Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China

2.South China Univ Technol, Sch Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China

3.Guangdong Acad Agr Sci, Guangdong Key Lab Agr Prod Proc, Key Lab Funct Foods, Sericultural & Agrifood Res Inst,Minist Agr, Guangzhou 510610, Guangdong, Peoples R China

4.Cornell Univ, Dept Food Sci, Stocking Hall, Ithaca, NY 14853 USA

期刊名称:SCIENTIFIC REPORTS ( 影响因子:4.379; 五年影响因子:5.133 )

ISSN: 2045-2322

年卷期: 2018 年 8 卷

页码:

收录情况: SCI

摘要: Rice husks (RHs) as an agro-waste generated from rice production, while its application is limited. This study was designed to introduce a full utilization of rice husks, which extracted the phytochemical at first and then produced cellulose nanocrystals (CNCs) as the use of the residue. Furthermore, the phytochemicals extracted from rice husk was identified and its biological activity, including antioxidant activity, cellular antioxidant activity (CAA) and antiproliferative activity, had been detected as well. Results showed the bound fraction of rice husk had higher antioxidant than common fruit and grain. Free fraction of rice husk deserved to have further analysis in antiproliferative activity due to its low cytotoxicity. The CNCs produced by residue was using delignification process and acid hydrolysis treatments. The chemical composition of the residue obtained after phytochemical extraction was determined. CNCs morphological investigation was performed using an optical microscope and atomic force microscopy (AFM). Our strategy is to achieve a comprehensive utilization of rice husks with both economy and environment benefits.

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