不同干燥方法对微藻提脂过程的影响

hlorella was used to study the effects of different drying methods on lipid extraction in this paper. According to the laboratory conditions, the paper selected vacuum drying, oven drying, freeze drying, and the vacuum drying (oven drying selected 60 ℃ and 80 ℃ two temperatures) .Liquid nitrogen grinding method has been applied to break the cell wall of microalgae.After algae drying finished, Soxhlet extractor method was used to extract lipid. In order to determine the composition and amount of oil, the GC-MS is used to test the oil after methyl esterification.The experimental results show that the vacuum drying is better than oven drying for Chlorella lipid extraction, the vacuum drying can get a higher amount of lipid. Oxidation happens to the Chlorella that dry in 80 ℃ oven . Chlorella become porous after freeze drying, improving lipid extraction levels.