摘要
为了开发利用鸡血蛋白质资源,该文探讨了鸡血浆蛋白分离及喷雾干燥工艺。首先研究了不同的离心转速和离心时间对鸡血浆蛋白分离效果的影响;使用SD-BASIC喷雾干燥器(英国Labplant公司),研究了喷雾干燥过程热风温度、进料速率对鸡血浆蛋白粉提取率、含水率、粗蛋白质量分数、氮溶解指数、颜色各项指标的影响。结果表明:离心转速和离心时间对血浆蛋白分离效果有显著影响(p<0.05);最佳分离条件为:离心转速3000r/min,离心时间15min。喷雾干燥热风温度、进料速率及两者之间的交互作用对鸡血浆蛋白粉品质均有显著影响(p<0.05);喷雾压力0.3MPa,进料温度为25℃,热风温度150℃、进料速率0.167mL/s时效果最好,此时血浆蛋白粉提取率、含水率、粗蛋白质量分数、氮溶解指数分别为64.289%、4.514%、72.644%、97.295%。研究结果为鸡血浆蛋白粉的工业化生产提供了相关的基础性数据。
In order to utilize chicken plasma protein resources, the technique and optimal parameters for separation and spray drying process of chicken plasma protein was investigated in the paper. First, the effects of centrifugal speed and time on the separation process were studied. Using SD-BASIC spray dryer （Labplant, UK）, different inlet air temperatures and feeding rates on the physicochemical properties of chicken plasma protein powder were determined, including yield, moisture content, protein content, nitrogen solution index and the color. The results indicated that centrifugal speed and time have significant influence on the separation of chicken plasma （p0.05） and the optimal centrifugal operation parameters were that chicken blood was centrifuged at 3000 r/min for 15 min. The spray drying inlet air temperature, feeding rate and the interaction between them had significant influence on quality of chicken plasma protein powder （p0.05）. The yield, moisture content, protein content and nitrogen soluble index of chicken plasma protein powder were 64.289%, 4.514%, 72.644% and 97.295% respectively under the optimal processing parameters of the airflow pressure 0.3 MPa, introduction temperature 25℃, inlet air temperature 150℃ and feeding rate 0.167 mL/s, and the qualities of product were good. The results are expected to provide some fundamental data for the industrial production of chicken plasma protein.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2012年第21期248-255,共8页
Transactions of the Chinese Society of Agricultural Engineering
基金
现代农业产业技术体系专项资金(CARS-42-5)
国家自然科学基金(31101308)
江苏省自然科学基金(BK2011649)
关键词
喷雾干燥
优化
蛋白
鸡血浆
离心转速
离心时间
进口温度
进料速率
spray drying
optimization
proteins
chicken plasma
centrifugal speed
centrifugal time
inlet air temperature
feeding rate
