乙醇水提法提取蚕蛹油研究

doi:10.3969/j.issn.1673-1689.2019.09.012

首页 > 过刊浏览>2019年第38卷第9期 >85-91. DOI:10.3969/j.issn.1673-1689.2019.09.012

乙醇水提法提取蚕蛹油研究
DOI:
                        10.3969/j.issn.1673-1689.2019.09.012
                    
作者:
                        
                        
                    
作者单位:
作者简介:
通讯作者:
中图分类号:TS224.4
基金项目:

Study on Extraction of Silkworm Oil with Aqueous Ethanol Extraction

Author:

Affiliation:

Fund Project:

摘要

图/表

访问统计

参考文献

相似文献

引证文献

资源附件

文章评论

摘要:

分别在烘干和冷冻状态下粉碎蚕蛹，通过扫描电镜（SEM）观察粉碎后的样品，然后采用乙醇水提法提取油脂，研究乙醇体积分数、温度、pH值和料液比等因素对提油率的影响，并对优化条件下提取的蚕蛹油进行脂肪酸组成、过氧化值和酸值分析。结果表明，冷冻状态下粉碎蚕蛹对提高提油率更为有利。SEM观测发现冷冻粉碎对细胞的破碎更为有效，因此对油脂提取更有利。研究发现，在乙醇体积分数40%，固液质量体符号比为1 g∶7 mL，温度50 ℃，pH 9的条件下反应3 h，乙醇水提法加工蚕蛹可得到最高提油率（90.76±0.08）%。气相色谱分析表明，乙醇水提法提取的蚕蛹油与正己烷浸提的蚕蛹油在脂肪酸组成上基本一致，主要由棕榈酸、油酸和亚麻酸等组成。乙醇水提法所得毛油酸值为0.025 mg/g，过氧化值为0.55 mmol/kg，油脂品质明显优于正己烷提取的蚕蛹油。

Abstract:

The silkworm pupae was crushed at dry of freezing state respectively and then observed by scanning electron microscopy（SEM）. Aqueous ethanol was used to extract oil and the effects of ethanol concentration，temperature，pH value and solid-liquid ratio on free oil yield were studied. The fatty acid composition，peroxide value and acid value of silkworm pupae oil extracted under optimal conditions were analyzed. The results show that the oil yield was higher when silkworm pupae was crushed under frozen condition. SEM observation shows that comminution under frozen condition is more effective on disrupting cells，therefore it is more favorable for oil extraction. It was also found that maximum oil yield was obtained as 90.76±0.08% under the conditions that ethanol concentration 40%（v/v），temperature 50 ℃，extraction pH 9，solid-to-liquid ratio 1 g：7 mL for 3 h reaction. GC analysis shows that composition and content of fatty acids in silkworm pupae oil from aqueous ethanol extraction were in substantial agreement with that from n-hexane extraction. Both silkworm oils were composed mainly of palmitic acid，oleic acid and linolenic acid. The peroxide value and acid value of crude silkworm pupae oil obtained by aqueous ethanol method was 0.55 mmol/kg and 0.025 mg/g respectively，which was obviously better than that extracted by n-hexane.

参考文献

相似文献

引证文献

引用本文

钦凌宇,杨瑞金,华霄,赵伟,张文斌.乙醇水提法提取蚕蛹油研究[J].食品与生物技术学报,2019,38(9):85-91.

QIN Lingyu, YANG Ruijin, HUA Xiao, ZHAO Wei, ZHANG Wenbin. Study on Extraction of Silkworm Oil with Aqueous Ethanol Extraction[J]. Journal of Food Science and Biotechnology,2019,38(9):85-91.

复制

文章指标

点击次数:
下载次数:
HTML阅读次数:
引用次数:

历史

收稿日期:
最后修改日期:
录用日期:
在线发布日期: 2020-03-31
出版日期:

地址：江苏省无锡市蠡湖大道1800号邮政编码：214122

电话：0510-85913526 电子邮件：xbbjb@jiangnan.edu.cn

技术支持：北京勤云科技发展有限公司

引用本文

分享

文章指标

历史

微信公众号二维码

手机版网站二维码