| 苹果浓缩汁二次混浊物的形态分析 |
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| 引用本文： | 綦菁华,蔡同一,王芳,庞美霞,黄漫清,于同泉. 苹果浓缩汁二次混浊物的形态分析[J]. 农业工程学报, 2007, 23(12): 247-251 |
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| 作者姓名： | 綦菁华 蔡同一 王芳 庞美霞 黄漫清 于同泉 |
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| 作者单位： | 北京农学院;北京农学院;北京农学院;北京农学院 |
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| 摘 要： | 通过苹果浓缩汁二次混浊物的形态分析以及浊度测定，初步确定混浊物的化学成分，为果汁生产、贮存中混浊的控制提供依据。将二次混浊果汁和后混浊果汁经乙酸双氧铀负染，观察其在透射式电镜下的形态并测定其浊度。结果表明：苹果浓缩汁经-18℃，冷冻8～10h处理后，苹果浓缩汁混浊减轻；再煮沸冷冻的果汁，混浊增加；二次混浊苹果浓缩汁形成的颗粒经乙酸双氧铀负染在透射式电镜下有蛋白质球状颗粒和链状的多酚类颗粒，或自身聚合或相互聚合形成大的颗粒；贮藏6个月的苹果浓缩汁后混浊比二次混浊严重。初步确定苹果浓缩汁的二次混浊物主要是蛋白质和酚类以及两者自身或相互聚合的产物。
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| 关 键 词： | 苹果汁 混浊 电镜 |
| 文章编号： | 1002-6819（2007）12-0247-05 |
| 收稿时间： | 2006-12-28 |
| 修稿时间： | 2007-11-09 |
Morphological analysis of the second haze in concentrated apple juice |
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| Qi Jinghu,Cai Tongyi,Wang Fang,Pang Meixi,Huang Manqing and Yu Tongquan. Morphological analysis of the second haze in concentrated apple juice[J]. Transactions of the Chinese Society of Agricultural Engineering, 2007, 23(12): 247-251 |
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| Authors: | Qi Jinghu Cai Tongyi Wang Fang Pang Meixi Huang Manqing Yu Tongquan |
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| Affiliation: | Department of food Science, Beijing Agricultural University, Beijing 102206, China;College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China;Department of food Science, Beijing Agricultural University, Beijing 102206, China;Department of food Science, Beijing Agricultural University, Beijing 102206, China;Department of food Science, Beijing Agricultural University, Beijing 102206, China;Beijing Key Laboratory of New Technology in Agricultural Application, Beijing 102206, China |
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| Abstract: | |
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| Keywords: | apple juice haze transmission electron microscopy |
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