Nguyen NT, Kim SY, Wee JH, Kim YH, Min J.
Cell blocking: An enhancement of foodborne pathogen detection by fluorescent signals of recombinant yeasts.
Anal Biochem 2020;
606:113856. [PMID:
32755600 DOI:
10.1016/j.ab.2020.113856]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/04/2020] [Accepted: 06/29/2020] [Indexed: 11/29/2022]
Abstract
Cell blocking (CB) technique has been widely applied in many studies since the last century. In our research, this technique was mostly used to study the enhancement of the vacuolar response-based system that could detect Shigella sp. and Salmonella sp. investigated in previous studies. The recombinant yeast cells were blocked by mixing with agarose gel on a 96-wells plate, then storing this plate in -80 °C before using. The optimal conditions for the new system, such as agarose concentration, maximum storage time, were also established. Finally, the efficiency of the vacuolar response-based system was improved, and this system could be used as a portable detector for the foodborne pathogen.
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