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Natural Product Research
Formerly Natural Product Letters
Volume 33, 2019 - Issue 8
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Research Articles

Development and validation of polar RP-HPLC method for screening for ectoine high-yield strains in marine bacteria with green chemistry

, , , , , & show all
Pages 1122-1126 | Received 28 Jan 2018, Accepted 22 Mar 2018, Published online: 02 Apr 2018
 

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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