硫对酵母生物富铬过程中铬胁迫的缓解作用
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李函彤,甲承立,张书文,芦晶,逄晓阳,刘鹭,吕加平
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Chromium (III) Stress Alleviation by Sulfur Compounds During Chromium Bio-enrichment by Saccharomyces cerevisiae
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LI HanTong,JIA ChengLi,ZHANG ShuWen,LU Jing,PANG XiaoYang,LIU Lu,LÜ JiaPing
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表3 硫化合物对酿酒酵母YSI-3.7生物量及生物富铬的影响
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Table 3 Effect of various S compounds on YSI-3.7 biomass and its chromium enrichment
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含硫化合物
S compound | 浓度
Concentration (mmol?L-1) | 生物量
Biomass
(g/100 mL) | 有机铬
Organic chromium
(μg·g-1·DCW) | 总铬
Total chromium
(μg·g-1·DCW) | 有机铬率
Percentage of organic chromium (%) | | 0 | 对照组 Control | 1.002±0.1 | 755.63±4.23 | 1431.93±10.12 | 52.77±1.24 | | Na2SO3 | 0.5 | 0.92±0.07 | 1198.16±9.43 | 1578.21±11.27 | 75.92±3.75 | | 1 | 0.85±0.08 | 1607.02±6.78 | 1876.32±9.43 | 85.65±2.36 | | 5 | 0.60±0.04 | 2052.43±10.58 | 2755.04±11.38 | 74.50±3.57 | | 10 | 0.49±0.03 | 609.58±4.98 | 1746.95±8.79 | 34.84±1.98 | | 15 | 0.32±0.02 | 477.39±2.75 | 740.18±8.02 | 64.50±1.63 | | Na2S | 0.5 | 1.005±0.25 | 895.98±5.72 | 1601.45±5.98 | 55.95±1.48 | | 1 | 1.08±0.07 | 1261.16±6.27 | 1868.74±9.98 | 67.75±2.32 | | 5 | 0.781±0.03 | 691.63±3.61 | 2302.31±11.54 | 30.04±1.03 | | 10 | 0.69±0.08 | 613.83±2.88 | 3516.62±21.32 | 17.46±0.98 | | 15 | 0.15±0.04 | 318.70±1.02 | 3834.02±20.98 | 8.31±0.45 | | （NH4）2SO3 | 0.5 | 0.996±0.05 | 721.01±2.79 | 2101.45±14.32 | 34.31±1.74 | | 1 | 0.942±0.04 | 861.12±5.97 | 2868.14±16.45 | 30.02±1.05 | | 5 | 0.276±0.02 | 542.19±4.34 | 3000.21±18.91 | 18.07±1.13 | | 10 | 0.121±0.02 | 301.21±2.83 | 1812.62±13.69 | 16.62±0.45 | | 15 | 0.085±0.01 | 100.32±1.56 | 1367.02±9.13 | 7.33±0.41 |
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