| 光谱法测定发酵乳中乙醛和双乙酰含量的变化 |
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| 引用本文： | 王伟君,张兰威,李延华.光谱法测定发酵乳中乙醛和双乙酰含量的变化[J].中国乳品工业,2006,34(11):50-53. |
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| 作者姓名： | 王伟君 张兰威 李延华 |
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| 作者单位： | 1. 通化师范学院,制药与食品系,吉林,通化,134002
2. 哈尔滨工业大学,食品科学学院,黑龙江,哈尔滨,150086 |
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| 摘 要： | 为了考察乳酸菌单菌种发酵乳的产酸特性和产香特性。使用酚试荆分光光度法测定发酵乳中乙醛含量，使用邻苯二胺法测定发酵乳中的双乙酰含量，并结合滴定酸度法测定发酵乳中的酸度。研究了L．b-3，Sf-9和L.dia在不同温度下发酵过程中的乙醛、双乙酰含量和酸度变化，以此评估发酵乳中有机酸和羰基化舍物的情况。
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| 关 键 词： | 发酵乳 酚试剂分光光度法 邻苯二胺法 乙醛 双乙酰 |
| 文章编号： | 1001-2230（2006）11-0050-04 |
| 收稿时间： | 2006-06-19 |
| 修稿时间： | 2006-06-19 |
Study on the change of aldehydes and diacetyls in fermented milk |
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| WANG Wei-jun,ZHANG Lan-wei,LI Yan-hua.Study on the change of aldehydes and diacetyls in fermented milk[J].China Dairy Industry,2006,34(11):50-53. |
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| Authors: | WANG Wei-jun ZHANG Lan-wei LI Yan-hua |
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| Affiliation: | 1.Department of Medicine and Food Science,Tonghua Teacher College,Tonghua 150030,China;2.Food Science and Genetics Engineering Rearch Institutes of Harbin industry University, Harbin 150086,China |
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| Abstract: | To investigate the characteristic of acid-producing and flavor-producing in single lactic acid bacteria, by assessing the situation of the organic acid and carbonyl compounds in the fermented milk ,the spectroscopic NBTH method , the diaminobenzidine method and the titration method were used in the article to determine acetaldehyde, diacetyl and titratable acidity respectively ,the changes of the acidity ,acetaldehyde and diacetyl during the cultivation of milk femented by L.b-3, S,t-9 and L.dia were estimated by the methods at different tempertures. |
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| Keywords: | fermented milk NBTH diaminobenzidine aldehydes diacetyle |
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