实验目的
对大量和小量酵母菌分别进行研磨,进而提取其核酸或蛋白。
实验原理
通过研磨珠的撞击,充分破碎酵母菌细胞壁,使其内容物流出,进而提取目标成分。
实验材料和器具
样品:酵母菌
仪器:全自动样品冷冻研磨仪(上海净信,Tissuelyser-24)
耗材:离心管,不锈钢研磨珠(上海净信,中号研磨珠)
实验步骤
需了解具体步骤,请致电厂家
实验注意事项
1.少量酵母菌研磨好后,实验室需要检验离心管中酵母是否研磨达到要求,可以采用重叠离心管离心方法:具体步骤为,取一管研磨好装有酵母的离心管,在底部用针或者其他尖锐东西扎一小孔,再在该离心管底部套一新离心管,一起离心。最后将新离心管中得到的酵母液进行镜检,若镜检无完整酵母细胞,则研磨效果达到要求。
2.如果上述步骤检测效果不理想,可以在第一步装样本前,先把酵母样本放入离心机,稍微离心,去除上浮液,再继续实验。
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