猪跟腱胶原蛋白海绵的制备-包装工程.pdf

包 装 工 程 第 38 卷 第 13 期 ·96 · PACKAGING ENGINEERING 2017 年 7 月 猪跟腱胶原蛋白海绵的制备 刘迪 1 ，王利强 1,2 ，任莹 1 （1.江南大学，无锡 214122 ；2.江苏省食品先进制造装备技术重点实验室，无锡 214122 ） 摘要： 目的 为了更好利用猪跟腱资源，提高其附加值及拓宽胶原在包装方面的应用，探讨猪跟腱胶原 蛋白海绵的制备及该海绵对乙醇的吸附作用。方法 采用单因素实验考察猪跟腱胶原蛋白浓度、甘油含 量、浇注厚度对力学性能的影响，并考察海绵孔隙率和时间对乙醇吸附性能的影响。结果 当胶原的质 量分数为 1%，甘油的质量分数为0.6% ，浇注厚度为5 mm 时，制备的海绵抗张强度为210.91 kPa ，断 裂伸长率为6.98% ，此工艺条件下制备的海绵孔隙率为91.19% ，30 d 乙醇吸附量为416.32 mg/g ，吸附 量与海绵的孔隙率成正相关。结论 猪跟腱胶原蛋白在此工艺下制备的海绵比其他动物胶原蛋白海绵的 抗张强度高，且对乙醇具有吸附作用。 关键词：猪跟腱；胶原蛋白海绵；气体吸附；乙醇 中图分类号：TS206 文献标识码：A 文章编号： 1001-3563(2017)13-0096-06 Preparation of Collagen Sponge from Pigs Tendon 1 1,2 1 LIU Di , WANG Li-qiang , REN Ying (1.Jiangnan University, Wuxi 214122, China; 2.Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment Technology, Wuxi 214122, China) ABSTRACT: The work aims to make better use of the resource of pig’s tendons to improve the added value and widen the application of collagen in packaging, and study the preparation of collagen sponge from pig’s tendon and its adsorp- tion performance for ethanol. Through the single factor experiment, the effects of concentration of collagen from pig’s tendons, glycerol content and casting thickness on the mechanical properties were studied. Then, the effects of sponge porosity and time on the adsorption performance for ethanol were studied. When the mass fractions of collagen and glyc- erol were respectively 1% and 0.6%