超临界CO2流体萃取木耳菌糠最佳工艺的研究

doi:10.16039/j.cnki.cn22-1249.2019.01.002

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摘要

目的：探讨木耳菌糠超临界CO2流体萃取的最佳工艺条件及萃取液的化学组成。方法：以萃取率为指标，在单因素试验基础上进行四因素三水平L9(34)正交试验确定最佳萃取工艺条件，利用气质联用仪对萃取液的化学成分进行分析。结果：最佳提取工艺条件为萃取压力30 MPa、萃取温度45℃、物料粒度60目、夹带剂体积400 mL，在此工艺条件下萃取率为3.25%。萃取物的化学成分主要由醇、醛、酮、酯、甾类组成，含量最高的三种化合物分别是亚油酸甲酯（5.56 %）、藿烯酮（5.26 %）、3,5-胆甾烷二烯-7-酮（4.05 %）。结论：由木耳菌糠提取分离精细化学品是生物质洁净、高效利用的一种新思路。

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	王宗勇
	赵轶
	何苗
	杨慧茹
	李萍
	薛晓丽

关键词: 木耳菌糠超临界萃取工艺优化化学组分

Abstract:

Objective: The optimum conditions for the extraction of Spend Auricularia auricular substrate by supercritical CO₂ fluid were studied, and the chemical composition of the extract was analyzed. Methods: Taking the extraction rate as the indicator, orthogonal test of L9 (3⁴) with four factors and three levels was carried out to determine the best conditions on the basis of single factor experiment. The extraction was analyzed with gas chromatograph/mass spectrometer. Results: The results showed that the optimal extraction conditions were 30 MPa, 45 ℃, 60 mesh, 400 mL of the entrainer volume and the extraction rate was 3.25% under these conditions. The chemical composition of extraction can be classified into alcohols, ethers, aldehydes, ketones, organic acids, esters, terpenoids, steroids. The three most abundant compounds were methyl linoleate (5.56%), 17β(H),21β(H)-hop-22(29)-EN-3-one(5.26%),3,5-cholestanedien-7-one(4.05%),respectively. Conclusion: Extraction and separation of fine chemicals from spend auricularia auricular substrate is a new idea of clean and efficient utilization of biomass.

Key words: spent auricularia auriculasubstrate supercritical extraction process optimization conditions chemical composition

出版日期: 2019-01-25 发布日期: 2019-01-25 整期出版日期: 2019-01-25

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引用本文:

王宗勇, 赵轶, 何苗, 杨慧茹, 李萍, 薛晓丽. 超临界CO₂流体萃取木耳菌糠最佳工艺的研究 [J]. 吉林化工学院学报, 2019, 36(1): 5-10.
WANG Zong-yong, ZHAO Yi, HE Miao, YANG Hui-ru, LI Ping, XUE Xiao-li. Study of Optimum Conditions on Supercritical CO₂Fluild Extraction of Spent Auricularia Auricula Substrate . Journal of Jilin Institute of Chemical Technology, 2019, 36(1): 5-10.

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https://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2019.01.002 或 https://xuebao.jlict.edu.cn/CN/Y2019/V36/I1/5

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