等边浅蛤肉酶解产物超滤组分免疫调节作用Immunomodulatory Effects of the Ultrafiltration Fractions of Enzymatic Hydrolysates from the Edible Part of Gomphina aequilatera
丁霈希,章超桦,高加龙,秦小明,曹文红,郑惠娜,林海生
摘要(Abstract):
【目的】探讨等边浅蛤(Gomphina aequilatera)肉的基本营养成分、蛋白质氨基酸组成及中性蛋白酶酶解产物超滤组分的免疫活性。【方法】采用中性蛋白酶酶解等边浅蛤肉,利用3ku超滤膜对等边浅蛤肉酶解产物进行超滤分离,通过细胞实验和动物实验评价小于3 ku和大于3 ku两个超滤组分的免疫调节作用。【结果】等边浅蛤肉具高蛋白低脂肪特点,其氨基酸种类和含量丰富。细胞实验表明,<3 ku组分的细胞相对增殖率及吞噬中性红能力均显著高于阳性对照组(P<0.05),其中质量浓度为250μg/mL时细胞相对增殖率高达126.22%;动物实验表明,与空白对照组相比,<3 ku组分能够极显著提高迟发型变态反应(DTH)程度、半数溶血值(HC50)、抗体生成细胞数、吞噬指数及NK细胞活性(P<0.01)。细胞实验和动物实验均表明<3 ku组分的免疫调节作用优于>3 ku组分。【结论】等边浅蛤肉酶解产物的<3 ku超滤组分具有一定的免疫调节作用。
关键词(KeyWords): 等边浅蛤;酶解产物;超滤组分;免疫调节作用
基金项目(Foundation): 广东海洋大学创新强校工程重大科研成果培育计划(GDOU2017052606);; 国家贝类产业技术体系项目(CARS-49);; 广东普通高等学校水产品高值化加工与利用创新团队项目(GDOU2016030503)
作者(Author): 丁霈希,章超桦,高加龙,秦小明,曹文红,郑惠娜,林海生
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