食品科学 ›› 2017, Vol. 38 ›› Issue (20): 139-145.doi: 10.7506/spkx1002-6630-201720020

• 工艺技术 • 上一篇    下一篇

血管紧张素转换酶抑制肽RLSFNP脂质体的制备工艺优化

郭宇星,薛逸秋,姜潇潇,吴振,曾小群,孙杨赢,潘道东   

  1. (1.南京师范大学金陵女子学院,江苏?南京 210097;2.宁波大学海洋学院,浙江?宁波 315211)
  • 出版日期:2017-10-25 发布日期:2017-09-29
  • 基金资助:
    国家自然科学基金面上项目(31571852;31471598;31671869;31601487);江苏省自然科学基金项目(BK20151544);2017年江苏省第五期 “333工程”培养资金资助项目(BRA2017450)

Optimization of Preparation of Angiotensin Converting Enzyme (ACE) Inhibitory Peptide RLSFNP Liposomes

GUO Yuxing, XUE Yiqiu, JIANG Xiaoxiao, WU Zhen, ZENG Xiaoqun, SUN Yangying, PAN Daodong   

  1. (1. Jinling College, Nanjing Normal University, Nanjing 210097, China; 2. School of Marine Sciences, Ningbo University, Ningbo 315211, China)
  • Online:2017-10-25 Published:2017-09-29

摘要: 本实验以脂质体作为包埋载体,研究血管紧张素转换酶(angiotensin converting enzyme,ACE)抑制肽Arg-Leu-Ser-Phe-Asn-Pro(RLSFNP)脂质体的制备工艺。以包封率为考察指标,采用单因素试验和响应面试验优化RLSFNP脂质体的制备工艺。得出最优制备条件为:大豆卵磷脂用量120.0?mg、胆固醇用量24.6?mg、?RLSFNP用量15.3?mg、乙醚用量15.0?mL、磷酸盐缓冲液(pH?7.4)用量5.8?mL、探头超声时间5.2?min。在此条件下制备的脂质体平均粒径在168?nm左右,电位为-31.2?mV,实际包封率为(67.5±0.8)%,由脂质体包埋后的RLSFNP具有一定的缓释效果。

关键词: 血管紧张素转换酶抑制肽, 脂质体, 包封率, 生物利用率

Abstract: The objective of the present study was to optimize the preparation of liposomes incorporating the angiotensin converting enzyme (ACE) inhibitory peptide Arg-Leu-Ser-Phe-Asn-Pro (RLSFNP) using combination of one-factor-at-a-time method and response surface methodology. The response variable was the entrapement efficiency. The optimum preparation conditions were determined as follows: soy lecithin, 120.0 mg; cholesterol, 24.6 mg; RLSFNP, 15.3 mg; ether, 15 mL; PBS buffer (pH 7.4), 5.8 mL; and ultrasonication time, 5.2 min. Under these conditions, the average diameter, potential and entrapement efficiency of liposomes were 168 nm, –31.2 mV and (67.5 ± 0.8) %, respectively. The liposomes could sustainably release RLSFNP.

Key words: angiotensin converting enzyme (ACE) inhibitory peptides, liposomes, entrapement efficiency, bioavailability

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