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liuqg1987鐵蟲 (初入文壇)
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[求助]
哪個(gè)大師能幫小弟修改一段英語語句 不勝感激
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| Since we found a significant change in growth of suspension cells (Fig. 3). The cell number was in a lower level before 4 h, but then rapidly raised with high budding rate and low mortality rate. When fermented for 16 h, the cell number achieved a maximum value of about ? million/mL, which was closed to industrial level. However, increased ethanol exhibited a strong inhibition on yeast cells in the later period of fermentation, which led to a low budding rate and high mortality rate, thereby showing a decreased tendency in cell number. In addition, after 11 batches, a layer of enriched cells was observed in some place of carrier surface with the naked eye, which was not in consistent with Choi et al. who reported that it was difficult to accumulate cells through repeated batch processes. This result indicated that cell immobilization can promote cell growth and not seriously affected by sludge and suspended solid in the cassava meal medium. |
鐵桿木蟲 (著名寫手)
鐵桿木蟲 (著名寫手)
鐵蟲 (初入文壇)
鐵蟲 (初入文壇)
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中文:。。。因?yàn)槲覀儼l(fā)現(xiàn)懸浮細(xì)胞生長有明顯的變化。在發(fā)酵4小時(shí)前,細(xì)胞數(shù)處于極低的水平,但隨后伴隨著高出芽率和低死亡率而迅速上升。當(dāng)發(fā)酵16小時(shí)時(shí),細(xì)胞數(shù)達(dá)到最大值?億個(gè)/mL, 接近了工業(yè)發(fā)酵的水平。但是,在發(fā)酵后期,乙醇濃度的升高對酵母細(xì)胞發(fā)揮了較強(qiáng)的抑制作用,導(dǎo)致低出芽率和高死亡率,從而表現(xiàn)出細(xì)胞數(shù)減少的趨勢。另外,在發(fā)酵11批后,在載體某些表面可以用肉眼看到少量菌體富集的現(xiàn)象,這與Choi等人報(bào)道的不是很相符,在他的研究中,他發(fā)現(xiàn)酵母細(xì)胞在間歇式發(fā)酵中很難積累。這個(gè)結(jié)果表明,細(xì)胞固定化可以促進(jìn)細(xì)胞生長,(細(xì)胞生長)不會(huì)受到木薯粉發(fā)酵培養(yǎng)基中的污泥和懸浮固體嚴(yán)重影響。 |
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