Page 193 - 《精细化工》2023年第5期
P. 193
第 40 卷第 5 期 精 细 化 工 Vol.40, No.5
20 23 年 5 月 FINE CHEMICALS May 2023
食品与饲料用化学品
短碳链结构磷脂在 Zn-Fe O @SiO 催化作用
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下的制备及其性能
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张江华 1,2 ,王 婷 ,姚佳杉 ,唐晶晶 ,马 佳 ,
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张 伟 ,李子轩 ,周大勇
(1. 大连工业大学 轻工与化学工程学院,辽宁 大连 116034;2. 大连工业大学 国家海洋食品工程技术
研究中心,辽宁 大连 116034;3. 大连辽东半岛饮品有限公司,辽宁 大连 116034)
摘要:通过溶胶-凝胶法和浸渍法制备了负载 Zn 的 SiO 2 包覆 Fe 3 O 4 (Zn-Fe 3 O 4 @SiO 2 ),采用 SEM、TEM、XPS、
Py-IR、VSM、EDS 对其进行了表征。将 Zn-Fe 3 O 4 @SiO 2 用于催化大豆卵磷脂(SLs)与短碳链脂肪酸(丙酸和
丁酸)间的酸解反应来制备新型短碳链结构磷脂(SCSPLs)乳化剂,并对 SCSPLs 进行了性能测定。结果表明,
核壳结构 Zn-Fe 3 O 4 @SiO 2 磁性微球负载了大量的活性组分 Zn,因而可高效催化制备 SCSPLs,在 m(SLs)∶m(C3∶
0)∶m(C4∶0)=1∶4∶4、催化剂用量为原料总质量的 5%、反应温度为 50 ℃、反应时间为 5 h 的条件下,SCSPLs
的短碳链脂肪酸接入率可高达 78.15%±1.08%(丙酸和丁酸的接入率分别为 35.43%±0.62%和 42.72%±0.55%),
且 Zn-Fe 3 O 4 @SiO 2 可通过外加磁场进行简单分离,循环 5 次而无明显失活;与 SLs 相比,SCSPLs 的乳化性、
分散性和氧化稳定性均得到很大的提高。
关键词:功能乳化剂;结构磷脂;短碳链;Fe 3 O 4 @SiO 2 ;酸解;食品添加剂
中图分类号:TQ265;TQ426 文献标识码:A 文章编号:1003-5214 (2023) 05-1113-10
Preparation and properties of short carbon chain
phospholipids catalyzed by Zn-Fe 3O 4@SiO 2
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ZHANG Jianghua , WANG Ting , YAO Jiashan , TANG Jingjing , MA Jia ,
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ZHANG Wei , LI Zixuan , ZHOU Dayong
(1. School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China;
2. National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China;
3. Dalian Liaodong Peninsula Beverage Co., Ltd., Dalian 116034, Liaoning, China)
Abstract: Zinc-loaded iron oxide coated with silica (Zn-Fe 3O 4@SiO 2) was prepared by sol-gel and
impregnation methods, and characterized by SEM, TEM, XPS, Py-IR, VSM and EDS for analysis on
textural and magnetic properties. The Zn-Fe 3O 4@SiO 2 obtained was then used in catalyzing the acidolysis
of soybean lecithins (SLs) with short-chain fatty acids (propionic acid and butyric acid) for synthesis of
novel emulsifiers of short-chain structured phospholipids (SCSPLs), followed by investigation on the main
physicochemical properties of the SCSPLs synthesized. The results showed that the active component Zn,
loaded in the core-shell Zn-Fe 3O 4@SiO 2 magnetic microspheres, effectively facilitated the synthesis of
SCSPLs. When the m(SLs)∶m(C3∶0)∶m(C4∶0)=1∶4∶4, the catalyst dosage was 5% of total mass of
raw materials, the reaction temperature was 50 ℃, and the reaction time was 5 h, the maximum short-chain
fatty acid incorporation of SCSPLs reached 78.15%±1.08% with 35.43%±0.62% of propionic acid and
42.72%±0.55% of butyric acid. Meanwhile, Zn-Fe 3O 4@SiO 2 could be easily separated with an external
收稿日期:2022-09-05; 定用日期:2022-11-28; DOI: 10.13550/j.jxhg.20220831
基金项目:国家自然科学基金(32172168、31801546);辽宁省教育厅科学研究项目(J2020039);辽宁省普通本科高等学校校际合作
项目(重大科研项目)(21)
作者简介:张江华(1980—),女,副教授,E-mail:zhangjhdlpu@163.com。