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        1. 上海乾思生物科技有限公司
          中級(jí)會(huì)員 | 第16年

          18916423352

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          什么是發(fā)酵培養(yǎng)基

          時(shí)間:2011/11/8閱讀:885
          分享:

                   培養(yǎng)基(Medium)是供微生物、植物和動(dòng)物組織生長(zhǎng)和維持用的人工配制的養(yǎng)料,一般都含有碳水化合物、含氮物質(zhì)、無(wú)機(jī)鹽(包括微量元素)以及維生素和水等。有的培養(yǎng)基還含有抗菌素和色素,用于單種微生物培養(yǎng)和鑒定。

                  發(fā)酵培養(yǎng)基是供菌種生長(zhǎng)、繁殖和合成產(chǎn)物之用。它既要使種子接種后能迅速生長(zhǎng),達(dá)到一定的菌絲濃度,又要使長(zhǎng)好的菌體能迅速合成需產(chǎn)物。因此,要求發(fā)酵培養(yǎng)基的組成應(yīng)豐富、*,碳、氮源要注意*和遲效的互相搭配,少用*營(yíng)養(yǎng),多加遲效營(yíng)養(yǎng);還要考慮適當(dāng)?shù)奶嫉?,加緩沖劑穩(wěn)定pH值;并且還要有菌體生長(zhǎng)所需的生長(zhǎng)因子和產(chǎn)物合成所需要的元素、前體和促進(jìn)劑等。除有菌體生長(zhǎng)所必需的元素和化合物外,還要有產(chǎn)物所需的特定元素、前體和促進(jìn)劑等。

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