Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2019, Vol. 40 ›› Issue (4): 781-786.DOI: 10.3969/j.issn.1000-2561.2019.04.024

• Agricultural Product Processing, Preservation, Storage, Analysis and Detection • Previous Articles     Next Articles

Comparative on the Metabolites of Two High Protein-producing Microalgae

LI Guili1,2,WEI Xiaoyi2,ZHOU Wei2,LI Jihua2,HAN Zhiping2,*()   

  1. 1. College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430000, China
    2. Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Tropical Crop Products Processing, Ministry of Agriculture & Rural Affairs, Zhanjiang, Guangdong 524001, China
  • Received:2018-11-13 Revised:2019-01-28 Online:2019-04-15 Published:2019-05-21
  • Contact: Zhiping HAN

Abstract:

To reveal the dominant cell metabolites, as well as their contents, including carbohydrates, lipids, proteins, chlorophyll and carotenoid of two newly isolated microalgae (Desmodesmus sp. QL96 and Desmodesmus sp. QJ74). Two microalgae were collected at the dedicated culture time, the cells were lyophilized, ground and resuspended to prepare a cell lysate, and then subjected to stepwise extraction and fractionation to detect the content of the cell metabolite obtained in each extraction step. The results showed that the protein content of Desmodesmus sp. QL96 and Desmodesmus sp. QJ74 reached up to 71.68% and 62.14% of the cell dry weight which were grown in the BG11 medium for 30 days, respectively. The contents of other cell metabolites were much lower, none exceeding 20% of the cell dry weight. Compared to other microalgae in literatures, Desmodesmus sp. QL96 is the most protein abundant microalgae and deserves further study, including protein expression patterns and protein-sourced product development.

Key words: Desmodesmus sp., metabolites, protein, lipid