| 不同温度及pH条件对乳酸菌生长影响的研究 |
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| 引用本文： | 熊素玉,姚新奎,谭小海,刘珩,张积荣,曾波,许鹏,熊伟,吴津蓉. 不同温度及pH条件对乳酸菌生长影响的研究[J]. 新疆农业科学, 2006, 43(6): 533-538 |
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| 作者姓名： | 熊素玉 姚新奎 谭小海 刘珩 张积荣 曾波 许鹏 熊伟 吴津蓉 |
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| 作者单位： | 新疆农业大学动物科学学院,新疆,乌鲁木齐,830052;新疆伊犁昭苏马场,新疆,昭苏,835602;新疆呼图壁县畜牧局,新疆,呼图壁,831200;天津顶益国际食品有限公司,天津,300457;新疆特丰药业股份有限公司,新疆,乌鲁木齐,830000 |
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| 基金项目： | 科技部国际科技合作项目;新疆科技厅科技攻关项目 |
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| 摘 要： | 实验用改良MC培养基为载体,通过目测菌液浑浊度,测定菌液OD600值和培养终点时pH值,对从酸马奶中分离出的乳酸菌的生长温度及pH值进行了研究.结果表明,在不加缓冲液的培养基中,在pH 6.5～8.5、40℃培养时,所有菌株生长良好,且发酵葡萄糖和乳糖产生乳酸,降低环境的酸度.当环境条件超出这一范围时,乳酸菌生长受到抑制.从OD600值看出,实验分离到的24株菌最适pH都在6.5左右,最适生长温度在40℃左右,但pH值与温度的范围在各菌株间略有差异.
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| 关 键 词： | 酸马奶 乳酸菌 温度 pH |
| 文章编号： | 1001-4330（2006）06-0533-06 |
| 收稿时间： | 2006-09-16 |
| 修稿时间： | 2006-09-26 |
Effects of Different Temperatures and pH on the Growth of Lactic Acid Bacteria |
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| XIONG Su-yu,YAO Xin-kui,TAN Xiao-hai,LIU Heng,ZHANG Ji-rong,ZENG Bo,XU Peng,XIONG Wei,WU Jin-rong. Effects of Different Temperatures and pH on the Growth of Lactic Acid Bacteria[J]. Xinjiang Agricultural Sciences, 2006, 43(6): 533-538 |
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| Authors: | XIONG Su-yu YAO Xin-kui TAN Xiao-hai LIU Heng ZHANG Ji-rong ZENG Bo XU Peng XIONG Wei WU Jin-rong |
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| Affiliation: | 1. College of Animal Science, Xinjiang Agrcultural University, Urumqi 830052, China ;2. Xinjiang Ili Stud, Zhaosu 835000, China ; 3. Animal Husbandry Bureau, Hutubi County of Xinjiang, Hutubi 831200, China ; 4. Tianjin Tingyi International Food Co. Ltd, Tianjin 300457, China ; 5. Xinjiang Tefeng PharmacoPediture. , Ltd, Urumqi 830000, China |
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| Abstract: | This experiment is designed to analyze the effects of different temperatures and pH on lactic acid bacteria(LAB) isolated from koumiss by improved MC culture.The OD_(600),pH and vaccine opacity of the culture at terminal were measured.The results of this experiment are summarized as follows:the LAB can massively grow in 40 ℃ and pH 6.5～8.5 in non-buffer culture,produce the lactic acids and lower the acidity of the environment.The LAB growth is inhibited beyond the range.The pH 6.5 and 40 ℃ are the most suitable condition to these 24 strains,but every strain performs different scope. |
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| Keywords: | pH |
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