| 真空冷冻干燥法制备高纯度低聚果糖工艺的初步研究 |
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| 引用本文： | 吕晓玲,丁继程,马淑青.真空冷冻干燥法制备高纯度低聚果糖工艺的初步研究[J].食品与发酵工业,2008,34(12). |
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| 作者姓名： | 吕晓玲 丁继程 马淑青 |
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| 作者单位： | 天津科技大学食品工程与生物技术学院,天津,300457 |
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| 摘 要： | 由于高纯度低聚果糖(P-FOS)有受热容易降解的特性,选择使用冷冻干燥法对高纯纯度低聚果糖进行干燥试验。试验测得P-FOS的共晶点-32℃,共融点-26℃,并通过单因素试验确定出适宜的干燥工艺条件为:冷阱温度-50℃,预冷冻速率为12℃/h,时间为5～6h,辐射加热温度为40～55℃,真空度为550～600Pa,干燥周期10～16h,得到片状的P-FOS,经加工得到P-FOS干粉产品。
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| 关 键 词： | 高纯度低聚果糖(P-FOS) 冷冻干燥 干粉 共晶点 共融点 |
Study on the Processing of High-purity Fructooligosaccharide by Vacuum Freeze-drying |
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| Lv Xiaoling,Ding Jicheng,Ma Shuqing.Study on the Processing of High-purity Fructooligosaccharide by Vacuum Freeze-drying[J].Food and Fermentation Industries,2008,34(12). |
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| Authors: | Lv Xiaoling Ding Jicheng Ma Shuqing |
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| Abstract: | High-purity fructooligosaccharides(P-FOS)is not stable by heat.Therefore,the vacuum freeze-drying was chosen.The results were as follows:the P-FOS eutectic points were-32℃,inclusive points were-26℃.The optimum conditions for the drying process by single-factor were condenser at-50℃,pre-frozen rate at 12℃/h,5～6 h,radiation heating at 40～55℃,vacuum at 550～600 Pa,drying cycle 10-16 h.P-FOS powder products were obtained by processing the P-FOS-flakes. |
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| Keywords: | high-purity fructooligosaccharides(P-FOS) freeze-drying powder eutectic point inclusive point |
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