Method for extracting microalgae intracellular metabolite by composite solvent and water stimulation method
A compound solvent and metabolomics technology, applied in the biological field, can solve the problems of time-consuming crushing process, damage to the quality of metabolites, and easy generation of impurities, etc., and achieve the effects of shortening sample preparation time, improving extraction efficiency, and increasing destruction rate
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Embodiment 1
[0023] A method for fully extracting microalgae intracellular metabolome products by a composite solvent plus water stimulation method using chlorella as the research object, comprising the following steps:
[0024] 1) Take 10ml of methanol / chloroform (1:1) solution and mix well, add 15% microalgae wet cells. The mixture was sonicated in ice water for 30 min.
[0025] 2) Centrifuge the mixture at 4°C, 10000g for 20 min. The upper chloroform-methanol solution was collected as the first extract.
[0026] 3) Add 2 mL of distilled water to the precipitated cells, and vortex for 30 s in an ice bath. Centrifuge at 4°C and 10000g for 5min, collect the supernatant and add it to the first extract.
[0027] 4) Repeat the first step of extraction for the remaining cell particles, and then collect the chloroform-methanol phase as the second extraction. The two extracts were combined.
[0028] 5) Add 1% sodium chloride solution to the extract for centrifugation and layering. The upper...
Embodiment 2
[0032] A method for fully extracting microalgae intracellular metabolome products by a mixed solvent plus water stimulation method using chlorella as the research object, comprising the following steps:
[0033] 1) Take 10ml of methanol / chloroform (2:3) solution and mix well, add 20% microalgae wet cells. The mixture was sonicated in ice water for 40 min.
[0034] 2) Centrifuge the mixture at 4°C, 10000g for 20 min. The upper chloroform-methanol solution was collected as the first extract.
[0035] 3) Add 3 mL of distilled water to the precipitated cells, and vortex in an ice bath for 60 s. Centrifuge at 4°C and 10000g for 5min, collect the supernatant and add it to the first extract.
[0036] 4) Repeat the first step of extraction for the remaining cell particles, and then collect the chloroform-methanol phase as the second extraction. The two extracts were combined.
[0037] 5) Add 1% sodium chloride solution to the extract for centrifugation and layering. The upper met...
Embodiment 3
[0041] A method for fully extracting microalgae intracellular metabolome products by a mixed solvent plus water stimulation method using chlorella as the research object, comprising the following steps:
[0042] 1) Take 10ml of methanol / chloroform (1:3) solution and mix well, add 10% microalgae wet cells. The mixture was sonicated in ice water for 30 min.
[0043] 2) Centrifuge the mixture at 4°C, 10000g for 20 min. The upper chloroform-methanol solution was collected as the first extract.
[0044] 3) Add 3 mL of distilled water to the precipitated cells, and vortex for 120 s in an ice bath. Centrifuge at 4°C and 10000g for 5min, collect the supernatant and add it to the first extract.
[0045] 4) Repeat the first step of extraction for the remaining cell particles, and then collect the chloroform-methanol solution as the second extraction. The two extracts were combined.
[0046] 5) Add 1% sodium chloride solution to the extract for centrifugation and layering. The upper m...
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