| 利用碎牛皮重组成型宠物咬胶用牛皮的工艺研究 |
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| 引用本文： | 李鹏,张修修,孙福成,王志荣.利用碎牛皮重组成型宠物咬胶用牛皮的工艺研究[J].畜牧与饲料科学,2018,39(4):44-44. |
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| 作者姓名： | 李鹏 张修修 孙福成 王志荣 |
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| 作者单位： | [1]青岛农业大学食品科学与工程学院,山东青岛266109;[2]青岛天地荟食品有限公司,山东青岛266400 |
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| 基金项目： | 项目来源:青岛农业大学高层次人才基金项目(66311 15050)。 |
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| 摘 要： | 以碎牛皮为原料,通过对其进行碱液浸泡、加热、打浆,添加辅料和谷氨酰胺转氨酶制得料浆,再进行成型、干燥脱水制得可作为宠物零食——咬胶类产品的原料重组牛皮。评价料液比、大豆分离蛋白以及谷氨酰胺转氨酶的添加量对重组牛皮性能的影响,对其感官指标、机械性能等指标进行测试,以获得最佳重组牛皮的生产工艺。结果表明,确定的最佳工艺条件为:20g碎牛皮屑与120mL0.1mol/LNaOH溶液混合,100℃水浴1.5h;然后在其中加入甘油0.4g、丙二醇0.2g、淀粉0.8g,进行匀浆,制得牛皮料浆液;料浆液与水的比例为3∶1,大豆分离蛋白添加量为10%,谷氨酰胺转氨酶添加量为0.5%,烘干后制得的重组牛皮整体性能最佳,抗拉强度和硬度适中,溶解性和透光性良好,颜色接近原皮的颜色。
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Study on Recombination and Formation Technology of Pet Dog Chew with Cowhide Scrap |
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| Abstract: | In this study,the shredded leather was used as raw material to prepare pet dog chew.After alkali liquor soaking,heating,pulping as well as adding auxiliary material and transglutaminase,the slurry was prepared.Subsequently,the slurry was subjected to formation and dehydration,and then the recombined cowhide for preparation of pet dog chew was obtained.In order to screen the optimum preparation technology of recombined cowhide,the effects of solid-liquid ratio,soybean protein isolate addition and transglutaminase addition on property of recombined cowhide were assessed,and the sensory indexes and mechanical characteristics of the recombined cowhide were determined.The optimum conditions were determined as followed:20 g of shredded leather were mixed with 120 mL of 0.1 mol/L NaOH solution and heated in 100℃water bath for 1.5 h;the mixture was added with 0.4 g of glycerinum,0.2 g of propylene glycol and 0.8 g of starch,after homogenate,the slurry was obtained;the ratio of slurry and water was 3∶1,and the addition of soybean protein isolate and transglutaminase was 10%and 0.5%,respectively.The tensile strength and hardness of the recombined cowhide were moderate,the solubility and transmission were good,and the color was close to the original cowhide. |
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