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| 响应面法优选黑米花青苷浸膏的喷雾干燥工艺 |
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余凡1,2,3,李新生1,2,韩豪1,2,李雯1,2,刘彩芬1,2,韩慧敏1,2
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1.陕西理工大学 生物科学与工程学院 陕西 汉中 723000;2.陕西省资源生物重点实验室 陕西 汉中 723000;3.城固县市场监督管理局 陕西 汉中 723200
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| 摘要: |
| 对黑米花青苷浸膏进行喷雾干燥的响应面实验。喷雾干燥的特点是干燥迅速，颗粒均匀，可以大范围使用，可加工的物料多样，操作简单稳定，适合工业化生产。响应曲面设计方法是利用合理的试验设计并通过实验得到一定数据，采用多元二次回归方程来拟合因素与响应值之间的函数关系，通过对回归方程的分析来寻求最优工艺参数，是解决多变量问题的一种统计方法。采用此方法优选黑米花青苷浸膏的喷雾干燥工艺。以喷雾干燥过程的出粉率、干粉中黑米花青苷的含量为指标，考察进风口温度、浸膏比重、蠕动泵泵速，对黑米花青苷浸膏喷雾干燥工艺的影响。结果表明，在进风口温度154.04 ℃ ，浸膏比重1.05，蠕动泵泵速10 r/min的条件下得到黑米花青苷粉末成粉率为38.08%，粉末中花青苷含量为112.758 mg/g。该优选工艺参数可为黑米花青苷的工业化生产提供实验依据。 |
| 关键词: 黑米花青苷 喷雾干燥 响应面法 |
| DOI：10.14188/j.ajsh.2018.06.012 |
| 分类号:Q819 |
| 基金项目:陕西省科技厅重点实验室项目（2015SZS-15-06）；陕西省教育厅专项（17JK0141） |
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YU Fan1,2,3,LI Xinsheng1,2,HAN Hao1,2,LI Wen1,2,LIU Caifen1,2,HAN Huimin1,2
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1.School of Biological and Engineering, Shaanxi Sci-Tech University, Hanzhong 723000, Shaanxi, China;2.Shaanxi Key Laboratory of Bio-Resource, Hanzhong ,723000, Shaanxi, China;3.Market supervision authority, Hanzhong 723000, Shaanxi, China
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| Abstract: |
| The response surface test of spray drying of black rice anthocyanin extract was carried out. Spray drying is characterized by quick drying, uniform particle size, wide range of applications, diverse processing materials, simple and stable operation, and suitable for industrial production. Response surface design (RSD) is a statistical method to solve multivariate problems. It uses reasonable experimental design and experimental data, uses multivariate quadratic regression equation to fit the functional relationship between factors and response values, and seeks the optimal process parameters through the analysis of regression equation. The spray drying technology of black rice anthocyanin extract was optimized by this method. The spray drying process and the content of anthocyanin in dried powder were taken as indexes. The results showed that the powdered rate was 38.08%, and the content of the anthocyanin was 112.758 mg/g when inlet temperature was 154.04 ℃, specific gravity was 1.05, and peristaltic pump speed was 10 r/min. The optimized technological parameters can provide experimental basis for the industrialized production of black rice anthocyanin. |
| Key words: black rice anthocyanin spray drying response surface method |
