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  • Title: Development and validation of polar RP-HPLC method for screening for ectoine high-yield strains in marine bacteria with green chemistry.
    Author: Chen J, Chen J, Wang S, Zhou G, Chen D, Zhang H, Wang H.
    Journal: Nat Prod Res; 2019 Apr; 33(8):1122-1126. PubMed ID: 29607747.
    Abstract:
    A novel, green, rapid, and precise polar RP-HPLC method has been successfully developed and screened for ectoine high-yield strain in marine bacteria. Ectoine is a polar and extremely useful solute which allows microorganisms to survive in extreme environmental salinity. This paper describes a polar-HPLC method employed polar RP-C18 (5 μm, 250 × 4.6 mm) using pure water as the mobile phase and a column temperature of 30 °C, coupled with a flow rate at 1.0 mL/min and detected under a UV detector at wavelength of 210 nm. Our method validation demonstrates excellent linearity (R 2 = 0.9993), accuracy (100.55%), and a limit of detection LOQ and LOD of 0.372 and 0.123 μgmL-1, respectively. These results clearly indicate that the developed polar RP-HPLC method for the separation and determination of ectoine is superior to earlier protocols.
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