| 培养压力对不同酵母菌株生长活性的影响 |
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| 引用本文： | 乔长晟,贾士儒,范志华,徐旭. 培养压力对不同酵母菌株生长活性的影响[J]. 化学工程, 2006, 34(9): 51-54,58 |
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| 作者姓名： | 乔长晟 贾士儒 范志华 徐旭 |
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| 作者单位： | 天津科技大学,生化工程研究室,天津,300222;天津科技大学,生化工程研究室,天津,300222;天津科技大学,生化工程研究室,天津,300222;天津科技大学,生化工程研究室,天津,300222 |
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| 基金项目： | 国家自然基金委资助项目(20176041)，天津市重点基金资助项目(003803811) |
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| 摘 要： | 研究了压力对不同酵母菌活力、胞内海藻糖质量分数和细胞形态的影响。结果表明,不同酵母菌对压力的刺激具有不同的敏感性和适应能力,这种敏感性和适应能力与酵母发酵液的pH值关系不大。加压有利于酵母菌胞内海藻糖质量分数的积累,酵母菌株应激产物海藻糖积累越高,越有利于适应体外环境剧烈的改变,相应的酵母菌株对压力的敏感性越强,加压导致酵母菌形态变化越明显。
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| 关 键 词： | 压力 酵母 生长活性 海藻糖 |
| 文章编号： | 1005-9954（2006）09-0051-04 |
Effect of pressure on activity of different yeast strains |
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| QIAO Chang-sheng,JIA Shi-ru,FAN Zhi-hua,XU Xu. Effect of pressure on activity of different yeast strains[J]. Chemical Engineering, 2006, 34(9): 51-54,58 |
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| Authors: | QIAO Chang-sheng JIA Shi-ru FAN Zhi-hua XU Xu |
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| Abstract: | The effect of pressure on viability,mass fraction of intracellular trehalose and cell shape of different yeast strains was studied.The results show that different yeast strains have different sensitivity and applicability;pH of broth has little effect on the sensitivity and applicability.High pressure is propitious to accumulation of intracellular trehalose content,and the higher trehalose content,the stronger ability of adaptation to the change of environment,correspondingly,the more sensitive to high pressure,the more obvious of change of cell shape. |
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| Keywords: | high pressure yeasts viability trehalose |
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