食品科学

• 营养卫生 • 上一篇    下一篇

光棘球海胆多肽的制备及其生物活性

王 婷1,2,王晓慧3,马 莹1,2,季晓彤1,2,王 玲1,2,年益莹1,2,薛 鹏1,2,孟 双1,秦 磊1,2,李冬梅1,2,张公亮1,侯红漫1,孙黎明1,2,*   

  1. 1.大连工业大学食品学院,辽宁 大连 116034;2.国家海洋食品工程技术研究中心,辽宁 大连 116034;
    3.山东东方海洋科技股份有限公司,山东 烟台 264003
  • 出版日期:2016-10-15 发布日期:2016-12-01

Preparation and Bioactivity of Peptides from Strongylocentrotus nudus

WANG Ting1,2, WANG Xiaohui3, MA Ying1,2, JI Xiaotong1,2, WANG Ling1,2, NIAN Yiying1,2, XUE Peng1,2,MENG Shuang1, QIN Lei1,2, LI Dongmei1,2, ZHANG Gongliang1, HOU Hongman1, SUN Liming1,2,*   

  1. 1. Food Science and Technology School, Dalian Polytechnic University, Dalian 116034, China; 2. National Engineering Research Center of Seafood, Dalian 116034, China; 3. Shandong Oriental Ocean Group Limited Company, Yantai 264003, China
  • Online:2016-10-15 Published:2016-12-01

摘要:

光棘球海胆(Strongylocentrotus nudus)又称大连紫海胆,是我国主要的经济型海胆之一,其味道鲜美、营养丰富,具有较高的食用和药用价值。本实验以大连紫海胆为研究对象,采用酶解法制备海胆活性肽,并对其部分生物活性进行研究。使用木瓜蛋白酶对海胆黄进行水解,得到分子质量分布范围<1、1~3、3~5、5~10 kD和<10 kD的5 种海胆多肽组分。活性研究结果显示,在多肽终质量浓度为200 μg/mL时,不同分子质量分布的海胆多肽均可促淋巴细胞生长。在这一质量浓度下,除了小于1 kD的多肽,其他多肽均对人宫颈癌细胞(HeLa细胞)增殖有一定抑制作用,对腹腔巨噬细胞吞噬能力有一定促进作用。在多肽终质量浓度为50 μg/mL时,不同组分海胆多肽对叔丁基脂氢过氧化物所致的Chang肝细胞氧化损伤均可发挥直接和间接抗氧化保护作用。然而,不同分子质量分布的海胆多肽均可抑制补体的经典途径活性,且呈现明显剂量-效应关系。上述结果表明,海胆多肽对细胞免疫和体液免疫功能具有潜在的调节作用,其功能活性的多向性值得深入研究。

关键词: 光棘球海胆, 多肽, 生物活性, 人宫颈癌细胞

Abstract:

Strongylocentrotus nudus is one of the major species of economic sea urchin in China. It has high food and
medicinal value due to its delicious taste and nutritional richness. In this work, bioactive peptides were prepared by
enzymatic hydrolysis of Strongylocentrotus nudus gonads with papain and their bioactivities were investigated. Five
fractions with molecular weight distribution of < 1, 1–3, 3–5, 5–10 and <10 kD were obtained by ultrafiltration of the
hydrolysate. Results showed that all the peptide fractions at a final concentration of 200 μg/mL could promote lymphocyte
growth. Moreover, at this concentration, all the peptides except the fraction of < 1 kD could inhibit the growth of HeLa
cells, and promote the phagocytic function of peritoneal macrophages. At 50 μg/mL, all the peptide fractions could protect Chang
liver cells against oxidation induced by tert-butyl hydroperoxide; butylhydroperoxid through direct and indirect pathways. All
the peptides could inhibit the classical complement pathway activity in a dose-dependent manner. All the above results suggested
potential regulatory activity on cellular and humoral immune function and anti-oxidant capacity. The multiple bioactivities of these
peptides deserve further investigation.

Key words: sea urchin, peptide, bioactivities, HeLa cell

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