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| 利用缓冲容量检测梨汁饮料中的果汁含量 | |
| 引用本文： | 高海燕,周晓慧,吴继红,赵镭,胡小松. 利用缓冲容量检测梨汁饮料中的果汁含量[J]. 食品与发酵工业, 2005, 31(11): 101-104 |
| 作者姓名： | 高海燕 周晓慧 吴继红 赵镭 胡小松 |
| 作者单位： | 1. 北京大学深圳研究生院,深圳,518055;北京大学环境工程系水沙科学教育部重点实验室,北京,100871;中国农业大学食品科学与营养工程学院,北京,100083 2. 中国杭州五丰冷食有限公司,杭州,310016 3. 中国农业大学食品科学与营养工程学院,北京,100083 |
| 基金项目： | 国家863基金项目资助（No.2002A245081） |
| 摘 要： | 梨汁是一种缓冲溶液，其含量不同则缓冲能力大小不同。文中对梨汁饮料的缓冲系数与原果汁含量之间的关系进行了研究。结果表明，缓冲系数与原果汁含量之间呈线性正相关，同时得出了缓冲系数与原果汁含量之间的关系式，根据此关系式可以推算出梨汁饮料中的原果汁浓度。该方法的相对标准偏差为0.60％～1117％，回收率107.21％～115.17％，具有较高的准确度和精确度，方法简便迅速，可应用于梨汁饮料原果汁浓度和真伪的检测。 |
| 关 键 词： | 梨汁 缓冲容量 原果汁含量 检测 |
| 收稿时间： | 2005-09-13 |
| 修稿时间： | 2005-10-17 |
Etermination of Raw Pear Juice Content in Pear Juice Beverage by Buffer Capacity |
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| Gao Hanyan,Zhou Xiaohui,Wu Jihong,Zhao Lei,Hu Xiaosong. Etermination of Raw Pear Juice Content in Pear Juice Beverage by Buffer Capacity[J]. Food and Fermentation Industries, 2005, 31(11): 101-104 | |
| Authors: | Gao Hanyan Zhou Xiaohui Wu Jihong Zhao Lei Hu Xiaosong |
| Affiliation: | 1.Peking University Shenzhen Graduate School, Shenzhen, 518055, China; 2.Department of Environmental Engineering, Peking University, Beijing,100871, China; 3.College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083,China; 4.Hangzhou-uf Refrigerated Food Co., Ltd,Zhenjiang,310016, China |
| Abstract: | Based on the fact that pear juice is a buffer system and its buffer capacity can be changed with the different content of raw juice, the relationship between raw juice content and its buffer coefficient was studied and an equation was established. The results showed that there was a linear positive correlation so that the content of raw pear juice can be calculated only by determining the buffer coefficient of the beverage. The recoveries and standard deviation were 107.21%～115.17% and less than 1.17% (expressed in the form of CV%) respectively. Therefore, the method is accurate convenient and rapid, can be applied to the determination of raw juice content of pear juice beverage and also for the detection of adulteration of pear juice. |
| Keywords: | pear juice buffer capacity raw juice content detection |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |