一种以蚕蛹为原料的新型 N-脂肪酰基氨基酸钠表面活性剂。

A novel sodium N-fatty acyl amino acid surfactant using silkworm pupae as stock material.

机构信息

Silk Biotechnology Laboratory, School of Biology and Basic Medical Sciences, Soochow University; Suzhou 215123; P R China.

出版信息

Sci Rep. 2014 Mar 21;4:4428. doi: 10.1038/srep04428.

DOI:10.1038/srep04428

PMID:24651079

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5394753/

Abstract

A novel sodium N-fatty acyl amino acid (SFAAA) surfactant was synthesized using pupa oil and pupa protein hydrolysates (PPH) from a waste product of the silk industry. The aliphatic acids from pupa oil were modified into N-fatty acyl chlorides by thionyl chloride (SOCl2). SFAAA was synthesized using acyl chlorides and PPH. GC-MS analysis showed fatty acids from pupa oil consist mainly of unsaturated linolenic and linoleic acids and saturated palmitic and stearic acids. SFAAA had a low critical micelle concentration, great efficiency in lowering surface tension and strong adsorption at an air/water interface. SFAAA had a high emulsifying power, as well as a high foaming power. The emulsifying power of PPH and SFAAA in an oil/water emulsion was better with ethyl acetate as the oil phase compared to n-hexane. The environment-friendly surfactant made entirely from silkworm pupae could promote sustainable development of the silk industry.

摘要

一种新型的钠离子 N-脂肪酰基氨基酸（SFAAA）表面活性剂是利用蚕蛹油和蚕蛹蛋白水解物（PPH）从丝绸工业的废物中合成的。通过氯化亚砜（SOCl2）将蚕蛹油中的脂肪酸改性为 N-脂肪酰氯。SFAAA 是通过酰氯和 PPH 合成的。GC-MS 分析表明，蚕蛹油中的脂肪酸主要由不饱和亚麻酸和亚油酸以及饱和棕榈酸和硬脂酸组成。SFAAA 的临界胶束浓度低，降低表面张力的效率高，在气/水界面上的吸附能力强。SFAAA 具有较高的乳化能力和较强的起泡能力。与正己烷相比，以乙酸乙酯为油相时，PPH 和 SFAAA 在油/水乳液中的乳化能力更好。这种完全由蚕蛹制成的环保型表面活性剂可以促进丝绸工业的可持续发展。