| 陶瓷膜微滤除菌技术提高超高温灭菌乳品质 |
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| 引用本文： | 孔凡丕, 刘 鹭, 张书文, 吕加平. 陶瓷膜微滤除菌技术提高超高温灭菌乳品质[J]. 农业工程学报, 2012, 28(17): 268-274. |
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| 作者姓名： | 孔凡丕 刘 鹭 张书文 吕加平 |
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| 作者单位： | 中国农业科学院农产品加工研究所,中国农业科学院农产品加工工程技术研究中心,北京100193 |
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| 基金项目： | 公益性行业科研专项经费项目"大宗农产品加工特性研究与品质评价技术（200903043）。 |
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| 摘 要： | 为了提高UHT超高温灭菌乳的品质，利用孔径为1.4 μm的纤维管状陶瓷膜对体细胞数量高低不同的2组原料乳进行微滤除菌，得到4组牛乳，分别为：低体细胞原料乳、低体细胞微滤乳、高体细胞原料乳和高体细胞微滤乳。然后对4组牛乳进行UHT灭菌处理，得到4种UHT乳，将其置于37℃下进行贮藏试验，通过试验对比了微滤和不微滤对于UHT乳品质的影响。结果表明：2组原料乳经UHT处理，纤溶酶活性分别残留了4.1%和3.28%，而在
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| 关 键 词： | 微滤 细菌 灭菌 UHT乳 体细胞 贮藏试验 |
| 收稿时间： | 2012-01-13 |
| 修稿时间： | 2012-07-05 |
Microfiltration of ceramic membrane forimproving UHT milk quality |
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| Kong Fanpi, Liu Lu, Zhang Shuwen, Lü Jiaping. Microfiltration of ceramic membrane forimproving UHT milk quality[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2012, 28(17): 268-274. |
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| Authors: | Kong Fanpi Liu Lu Zhang Shuwen Lü Jiaping |
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| Affiliation: | Kong Fanpi,Liu Lu,Zhang Shuwen,Lü Jiaping(Engineering Research Center of Agro-Food Processing,Institute of Agro-food Science and Technology,Chinese Academy of Agricultural Science,Beijng 100193,China) |
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| Abstract: | In order to improve the quality of UHT milk,high somatic cell count(SCC) and low SCC raw milk were degermed by microfiltration(MF) with 1.4 μm ceramic membrane.Four groups of milk were obtained:low SCC milk,MF low SCC milk,high SCC milk and MF high SCC milk.Then the four groups of milk were sterilized with ultra high temperature(UHT) to prepare four groups of UHT milk,which were stored in 37℃ and the quality was evaluated between the microfiltration and non-microfiltration groups.The results showed that in the high SCC and low SCC raw milk,residual bovine plasmin activity was 4.1% and 3.28% left respectively after UHT,while it was almost eliminated during the procedure of "MF+UHT".Both the quality indexes of the "MF+UHT" milk,including non-casein protein(NCN),pH value,acidity and fat globule particle size,changed littler than UHT milk without MF and the quality kept better.Relative to the low SCC groups,the quality improved much more in the high SCC groups through microfiltration.The results can provide a reference for the use of high somatic cell milk to produce high quality UHT milk. |
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| Keywords: | microfiltration bacteria sterilization UHT milk somatic cell shelf life experiment |
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