以废丝为主要原料,将不溶于水的丝素蛋白通过与一氯乙酸在乙醇溶剂中的醚化反应,合成了可溶性的羧甲基丝素.讨论了几种主要因素(如碱化时间、碱化温度、醚化时间和醚化温度等)对产物醚化度的影响,得到了制备羧甲基丝素的醚化工艺条件:碱化时间90 min、醚化时间90 min、碱化温度25℃、醚化温度70℃.所得羧甲基丝素的醚化度为0.7425.测定羧甲基丝素的表面活性后,得到羧甲基丝素的临界胶束浓度为1.25 g/L,亲水亲油平衡(HLB)值为10.丝素蛋白溶液具有一定的起泡能力,且在质量分数为1.0％～1.2％范围内的稳定性较好,但不宜作发泡剂.丝素蛋白溶液具有良好的乳化能力和乳化稳定性,可作为良好的乳化剂.
参考文献
| [1] | LIU Yongcheng,SHAO Zhengzhong,SUN Yuyu,et al.The Structure and Function of the Silk Protein[J].Polym Bull,1998,3:42-49(in Chinese).刘永成,邵正中,孙玉宇,等.蚕丝蛋白的结构和功能[J].高分子通报,1998,3:42-49. |
| [2] | FENG Ping.The Study of Structure and Edidility of Silk Protein[J].Food Res Dev,2004,25(6):51-54(in Chinese).封平.蚕丝蛋白的结构及食用性研究[J].食品研究与开发,2004,25(6):51-54. |
| [3] | Nl Li,WANG Zhang,XU Shiying.Preparation of Silk Fibroin Powder[J].J Wuxi Univ Light Ind,2000,19 (2):946-949(in Chinese).倪莉,王璋,许时婴.可溶性丝素粉末的制备[J].无锡轻工大学学报,2000,19(2):946-949. |
| [4] | ZHOU Fengjuan,XU Shiying,YANG Ruijin,et al.A New Method for the Production of Soluble Silk Fibroin Powder[J].Sci Technol Food Ind,2003,3(2):117-120(in Chinese).周凤娟,许时婴,杨瑞金,等.可溶性丝素蛋白粉生产新工艺[J].食品工业科技,2003,3(2):117-120. |
| [5] | ZHENG Dan,TAO Lidan.Preparation of Carboxymethyl Silk Protein[J].Shenyang Chem lnd,1993,(4):20-31 (in Chinese).郑丹,陶立丹.羧甲基纤维素的制备研究[J].沈阳化工,1993,(4):20-31. |
| [6] | ZHANG Jingwu,ZHAO Guiying,SHI Yuquan,et al.The Determination of Degree on Carboxymethyl Starch Ether[J].Tianjin Chem lnd,1989,(4):53 (in Chinese).张镜吾,赵桂英,时雨荃,等.羧甲基淀粉醚取代度的测定方法[J].天津化工,1989,(4):53. |
| [7] | ZHANG Weinong,LIU Dachuan,HU Xiaohong.Study on the Functional Characteristics of Peanut Protein Products[J].China Oils Fats,2002,27 (5):60-65 (in Chinese).张维农,刘大川,胡小泓.花生蛋白产品功能特性的研究[J].中国油脂,2002,27 (5):60-65. |
| [8] | CHEN Zongqi,DAI Minguang.Colloid Chemistry[M].Beijing:Higher Education Press,1987:240-272,315-358 (in Chinese).陈宗淇,戴闽光.胶体化学[M].北京:高等教育出版社,1987:240-272,315-358. |
| [9] | Damodaran S.Amino Acids,Peptides,and Proteins in Food Chemistry[M].New York:Marcel Dekker,2001:385. |
| [10] | WANG Yong,OU Shiyi,LI Aijun,et al.The Performance of Fluidized Lysophospholipids and the Determination of HLB[J].China Oils Fats,2003,28(1):58-60(in Chinese).汪勇,欧仕益,李爱军,等.流态溶血磷脂性能及HLB值的测定[J].中国油脂,2003,28(1):58-60. |
| [11] | LIAO Zhengfu.HLB Value and Its Applications in the Emulsion Polymerization[J].J Guangxi Teachers College (Nat Sci Edn),2003,20(2):12-16(in Chinese).廖正福.HLB值及其在乳液聚合研究中的应用[J].广西师范学院学报(自然科学版),2003,20(2):12-16. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%