食品科学 ›› 2006, Vol. 27 ›› Issue (2): 131-135.

• 工艺技术 • 上一篇    下一篇

有限酶解猪血红蛋白制备亚硝基血红素多肽的研究

 马美湖, 黄群, 麻成金, 顾仁勇   

  1. 湖南农业大学食品科技学院; 吉首大学食品科学研究所
  • 出版日期:2006-02-15 发布日期:2011-09-05

Study on Processing Nitrosyl Heme-polypeptide by Partly Hydrolyzing Porcine Hemoglobin with Protease

 MA  Mei-Hu, HUANG  Qun, MA  Cheng-Jin, GU  Ren-Yong   

  1. 1.College of Food Science and Technology, Hunan Agricultural University; 2.Institute of Food Science, Jishou University.
  • Online:2006-02-15 Published:2011-09-05

摘要: 为了使亚硝基(NO-)更易结合于血红素亚铁离子及提高色素稳定性,本研究采用蛋白酶有限酶解猪血红蛋白,酶解液中大分子血红素多肽与亚硝基反应合成亚硝基血红素多肽。试验表明,以选用木瓜蛋白酶效果较好,最佳酶解条件为:底物浓度16%,加酶量4000U/g,水解时间6h;酶解液合成色素最佳参数为:pH5.00,反应时间12min,反应温度为55℃,NaNO2的添加量为1.6%。

关键词: 猪血红蛋白, 蛋白酶, 酶解, 亚硝基血红素多肽, 参数

Abstract: In order to facilitate NO- to combine with the heme iron ion so as to improve the stability of pigment, this experiment utilized protease to hydrolyze Hb to some degree and then made NO- react with Heme-iron to concatenate large molecule polypeptide, into nitrosyl heme-polypeptide. The results showed that the optimum enzymatic conditions were: choosing papain, with substrate concentration 16%, enzyme concentration 4000U/g, hydrolysis time 6h, and the optimum conditions for the enzymatic hydrolysate of porcine blood to synthesize nitrosyl heme-polypeptide were: NaNO2 added 1.6%, pH5.00 and reaction time to 12min at 55℃.

Key words: porcine hemoglobin, protease, enzymatic hydrolysis, nitrosyl heme-polypeptide, parameter