包晓明,范小宁,赵瑞娜,陈敬敬,张 丽,师希雄*
(甘肃农业大学食品科学与工程学院,甘肃兰州 730070)
摘要:为提高藏羊骨高值化利用率,本研究以新鲜“甘加”藏羊脊骨为原料,研究其基本营养成分,并采用超高压技术辅助风味蛋白酶制备藏羊骨素酶解液。以水解度为评判指标,采用单因素试验,探究超高压处理压力(250、300、350、400、450 MPa)、保压时间(3、6、9、12、15 min)、料液比(1∶1、1∶3、1∶6、1∶9、1∶12 g/mL)、酶解时间(1、2、3、4、5 h)和加酶量(0.05%、0.10%、0.15%、0.20%、0.25%)对藏羊骨素酶解液水解度的影响,并运用响应面试验优化最佳工艺。结果表明,在酶解时间4 h,超高压处理压力360 MPa,保压时间6 min,料液比1∶3.5 g/mL,加酶量0.20%时,水解度达到最高,达16.86%。本研究可为藏羊骨的开发利用提供依据,为骨素的新工艺制备提供参考。
关键词:藏羊骨素;超高压技术;风味蛋白酶;酶解工艺
中图分类号:TS251.94 文献标识码:A 文章编号:1674-506X(2023)03-0001-0008
Study on the Preparation of “Ganjia” Tibetan Sheep Osteoin by
Ultrahigh Pressure Assisted Enzymatic Method
BAO Xiaoming, FAN Xiaoning, ZHAO Ruina, CHEN Jingjing, ZHANG Li, SHI Xixiong*
(College of Food Science and Engineering, Gansu Agricultural University, Lanzhou Gansu 730070, China)
Abstract:In order to improve the utilization rate of high value of Tibetan sheep bone,in this study,fresh “ganjia” Tibetan sheep spine was used as raw material, study its basic nutrients, and ultra-high pressure technology was used to assist flavor protease to prepare Tibetan sheep osteozyme solution. Taking the degree of hydrolysis as the evaluation index, the effects of ultra-high pressure treatment pressure, packing time, materialliquid ratio, enzymatic solution time and enzyme addition on the hydrolysis of Tibetan sheep osteozyme solution were investigated by one-factor experiments, and the response surface experiments were used to optimize the optimal process. The results showed that when the enzymatic digestion time is 4 h, the ultra- high pressure treatment pressure is 360 MPa, the packing time is 6 min,the feed and liquid ratio is 1:3.5 g/mL, and the amount of added enzyme is 0.20%, DH reaches the highest under this condition, up to 16.86%. This study can provide a basis for the development and utilization of Tibetan sheep bone,and provide a reference for the preparation of new processes of osteoin.
Keywords: Tibetan sheep osteoin; ultra high pressure technology; flavor protease; enzymatic process
doi: 10.3969/j.issn.1674-506X.2023.03-001
收稿日期:2022-10-13
基金项目:甘肃省教育技术创新项目(GSSYLXM-02);甘肃省传统肉制品绿色制造技术研究及产业化示范(20YF3NA014)
作者简介:包晓明(1999-),男,硕士研究生。研究方向:畜产品加工。
*通信作者:师希雄(1977-),男,博士,副教授,硕士研究生导师。研究方向:畜产品加工及动物性食品营养研究。
引用格式:包晓明,范小宁,赵瑞娜,等.超高压辅助酶法制备“甘加”藏羊骨素工艺研究[J].食品与发酵科技,2023,59(3):1-8.
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