Soy Protein Isolate-Phosphatidylcholine Nanoemulsions Prepared Using High-Pressure Homogenization

Yang Li; Chang-Ling Wu; Jun Liu; Ying Zhu; Xiao-Yuan Zhang; Lian-Zhou Jiang; Bao-Kun Qi; Xiao-Nan Zhang; Zhong-Jiang Wang; Fei Teng

doi:10.3390/nano8050307

Soy Protein Isolate-Phosphatidylcholine Nanoemulsions Prepared Using High-Pressure Homogenization

Nanomaterials (Basel). 2018 May 7;8(5):307. doi: 10.3390/nano8050307.

Authors

Yang Li¹, Chang-Ling Wu², Jun Liu³, Ying Zhu⁴, Xiao-Yuan Zhang⁵, Lian-Zhou Jiang⁶, Bao-Kun Qi⁷, Xiao-Nan Zhang⁸, Zhong-Jiang Wang⁹, Fei Teng¹⁰

Affiliations

¹ College of Food Science, Northeast Agricultural University, Harbin 150030, China. liyang@neau.edu.cn.
² College of Food Science, Northeast Agricultural University, Harbin 150030, China. wuchangling@neau.edu.cn.
³ Shan Dong Yuwang Ecological Food Industry, Yucheng 251200, China. liujun@yuwangcn.com.
⁴ College of Food Science, Northeast Agricultural University, Harbin 150030, China. zhuying@neau.edu.cn.
⁵ College of Food Science, Northeast Agricultural University, Harbin 150030, China. zhangxiaoyuan@neau.edu.cn.
⁶ College of Food Science, Northeast Agricultural University, Harbin 150030, China. jianglianzhou@neau.edu.cn.
⁷ College of Food Science, Northeast Agricultural University, Harbin 150030, China. qibaokun@neau.edu.cn.
⁸ College of Food Science, Northeast Agricultural University, Harbin 150030, China. xiaonanzhang@neau.edu.cn.
⁹ College of Food Science, Northeast Agricultural University, Harbin 150030, China. wangzhongjiang@neau.edu.cn.
¹⁰ College of Food Science, Northeast Agricultural University, Harbin 150030, China. tengfei@neau.edu.cn.

Abstract

The nanoemulsions of soy protein isolate-phosphatidylcholine (SPI-PC) with different emulsion conditions were studied. Homogenization pressure and homogenization cycle times were varied, along with SPI and PC concentration. Evaluations included turbidity, particle size, ζ-potential, particle distribution index, and turbiscan stability index (TSI). The nanoemulsions had the best stability when SPI was at 1.5%, PC was at 0.22%, the homogenization pressure was 100 MPa and homogenization was performed 4 times. The average particle size of the SPI-PC nanoemulsions was 217 nm, the TSI was 3.02 and the emulsification yield was 93.4% of nanoemulsions.

Keywords: high-pressure homogenization; nanoemulsions; phosphatidylcholine; soy protein isolate.