蛤蜊肽的制备工艺优化及其增强免疫活性
TS254.5; 目的:以菲律宾蛤仔(Ruditapes philippinarum)为原料,研究蛋白肽制备工艺及其增强免疫活性.方法:以蛋白水解度为评价指标,筛选最适蛋白酶,采用单因素实验和响应面试验确定最佳酶解条件;氨基酸分析仪分析蛤蜊肽氨基酸组成;通过小鼠器官/体重比值、小鼠脾淋巴细胞转化实验、血清溶血素实验、小鼠腹腔巨噬细胞吞噬鸡红细胞实验、NK细胞活性实验评价蛤蜊肽的增强免疫活性.结果:菲律宾蛤仔蛋白肽制备的最适蛋白酶为胰蛋白酶,最佳酶解条件为温度48.4℃,pH8.0,加酶量3795 U/g,料液比1:2,水解时间4 h,该工艺下蛋白水解度达到15.33%,蛋白肽重均分子量为418...
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Published in: | 食品工业科技 Vol. 44; no. 9; pp. 244 - 253 |
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青岛海洋生物医药研究院,山东青岛 266071%上海英格尔认证有限公司,上海 200030%蓬莱汇洋食品有限公司,山东烟台 265609
01-05-2023
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Abstract | TS254.5; 目的:以菲律宾蛤仔(Ruditapes philippinarum)为原料,研究蛋白肽制备工艺及其增强免疫活性.方法:以蛋白水解度为评价指标,筛选最适蛋白酶,采用单因素实验和响应面试验确定最佳酶解条件;氨基酸分析仪分析蛤蜊肽氨基酸组成;通过小鼠器官/体重比值、小鼠脾淋巴细胞转化实验、血清溶血素实验、小鼠腹腔巨噬细胞吞噬鸡红细胞实验、NK细胞活性实验评价蛤蜊肽的增强免疫活性.结果:菲律宾蛤仔蛋白肽制备的最适蛋白酶为胰蛋白酶,最佳酶解条件为温度48.4℃,pH8.0,加酶量3795 U/g,料液比1:2,水解时间4 h,该工艺下蛋白水解度达到15.33%,蛋白肽重均分子量为418 Da;其氨基酸组成合理,必需氨基酸占比达到41.48%;经口给予小鼠不同剂量的蛤蜊肽30 d,与空白对照组比较,小鼠的脏器比值无显著影响(P>0.05),低剂量(700 mg/(kg·d))与高剂量(2800 mg/(kg·d))下能显著提高血清溶血素水平(P<0.05),低剂量(700 mg/(kg·d))与中剂量(1400 mg/(kg·d))下能显著提高小鼠腹腔巨噬细胞吞噬鸡红细胞吞噬率(P<0.01),具有较好的增强免疫活性.结论:该方法下制备的蛤蜊肽水解程度较高、分子量低且分布集中,并具有一定增强免疫活性,具有开发成保健食品或特殊膳食食品的潜能. |
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AbstractList | TS254.5; 目的:以菲律宾蛤仔(Ruditapes philippinarum)为原料,研究蛋白肽制备工艺及其增强免疫活性.方法:以蛋白水解度为评价指标,筛选最适蛋白酶,采用单因素实验和响应面试验确定最佳酶解条件;氨基酸分析仪分析蛤蜊肽氨基酸组成;通过小鼠器官/体重比值、小鼠脾淋巴细胞转化实验、血清溶血素实验、小鼠腹腔巨噬细胞吞噬鸡红细胞实验、NK细胞活性实验评价蛤蜊肽的增强免疫活性.结果:菲律宾蛤仔蛋白肽制备的最适蛋白酶为胰蛋白酶,最佳酶解条件为温度48.4℃,pH8.0,加酶量3795 U/g,料液比1:2,水解时间4 h,该工艺下蛋白水解度达到15.33%,蛋白肽重均分子量为418 Da;其氨基酸组成合理,必需氨基酸占比达到41.48%;经口给予小鼠不同剂量的蛤蜊肽30 d,与空白对照组比较,小鼠的脏器比值无显著影响(P>0.05),低剂量(700 mg/(kg·d))与高剂量(2800 mg/(kg·d))下能显著提高血清溶血素水平(P<0.05),低剂量(700 mg/(kg·d))与中剂量(1400 mg/(kg·d))下能显著提高小鼠腹腔巨噬细胞吞噬鸡红细胞吞噬率(P<0.01),具有较好的增强免疫活性.结论:该方法下制备的蛤蜊肽水解程度较高、分子量低且分布集中,并具有一定增强免疫活性,具有开发成保健食品或特殊膳食食品的潜能. |
Author | 付雪媛 孙呈浩 王明丽 杜芬 王长伟 |
AuthorAffiliation | 青岛海洋生物医药研究院,山东青岛 266071%上海英格尔认证有限公司,上海 200030%蓬莱汇洋食品有限公司,山东烟台 265609 |
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Author_FL | WANG Changwei SUN Chenghao WANG Mingli FU Xueyuan DU Fen |
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Keywords | 水解度 分子量 蛤蜊肽 增强免疫活性 制备工艺 |
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Title | 蛤蜊肽的制备工艺优化及其增强免疫活性 |
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