Cryopreservation of the edible alkalophilic cyanobacterium Arthrospira platensis

Cryopreservation of the edible alkalophilic cyanobacterium Arthrospira platensis
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食用嗜碱蓝细菌钝顶节旋藻的冷冻保存

DOI:
10.1080/09168451.2016.1189320
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发表时间:
2016
期刊:
Bioscience, Biotechnology, and Biochemistry
影响因子:
--
通讯作者:
H.
H.
中科院分区:
--
文献类型:
--
作者:
Shiraishi;H.

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以模型菌株A为研究对象,研究了食用嗜碱蓝细菌钝顶螺旋藻(Spirulina)的高效冷冻保存条件。钝盘菌NIES-39。结果发现,在 10%(v/v)二甲亚砜存在下,以大约 -1 °C min−1 的冷却速率冷冻时,超过 60% 的细胞在解冻后仍能存活。对其他节旋藻菌株的进一步检查表明,其中许多菌株具有依赖于菌株的最佳冷冻保存条件。例如,A的最佳冷冻条件。 PlatensisSAG 21.99 在 5% (v/v) 二甲基亚砜存在下在液氮中速冻,而在 10% (v/v) 甲醇存在下在大约 -1 °C min−1 下缓慢冷却。 PlatensisNIES-46、NIES-2308 和 UTEX 1926。本研究中提出的各种成功的冷冻保存条件在尝试冷冻保存各种节旋藻菌株时非常有用。
Efficient cryopreservation conditions for the edible alkalophilic cyanobacteriumArthrospira(Spirulina)platensiswere investigated using a model strainA. platensisNIES-39. As a result, it was found that more than 60% of cells were viable upon thawing, when they had been frozen at a cooling rate of approximately −1 °C min−1in the presence of 10% (v/v) dimethyl sulfoxide. Further examination with otherArthrospirastrains showed that many of them had strain-dependent optimal conditions for cryopreservation. For example, the best freezing conditions forA. platensisSAG 21.99 were snap-freezing in liquid nitrogen in the presence of 5% (v/v) dimethyl sulfoxide, while they were slow cooling at approximately −1 °C min−1in the presence of 10% (v/v) methanol forA. platensisNIES-46, NIES-2308 and UTEX 1926. The variety of successful cryopreservation conditions presented in this study is useful when attempting to cryopreserve variousArthrospirastrains.
节旋藻(螺旋藻)菌株的表征
DOI: --
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