scholarly journals Use of plastic-based analytical device, smartphone and chemometric tools to discriminate amines

RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 20148-20154 ◽  
Author(s):  
Lígia Bueno ◽  
Gabriel N. Meloni ◽  
Subrayal M. Reddy ◽  
Thiago R. L. C. Paixão

Amine-based volatile compounds released by microorganisms offer an alternative diagnostic approach for the identification of foodborne pathogens.

2018 ◽  
Vol 76 ◽  
pp. 226-236 ◽  
Author(s):  
María Belén Iglesias ◽  
María Luisa López ◽  
Gemma Echeverría ◽  
Inmaculada Viñas ◽  
Lorena Zudaire ◽  
...  

Molecules ◽  
2020 ◽  
Vol 25 (14) ◽  
pp. 3245
Author(s):  
Porawan Naksang ◽  
Sasitorn Tongchitpakdee ◽  
Kanjana Thumanu ◽  
Maria Jose Oruna-Concha ◽  
Keshavan Niranjan ◽  
...  

Etlingera pavieana (Pierre ex Gagnep.) R.M.S. is a rhizomatous plant in the Zingiberaceae family which could be freshly eaten, used as a condiment or as a traditional remedy. Our work investigated the chemical composition and antimicrobial activity of the E. pavieana essential oils extracted from the rhizome (EOEP). We extracted the EOEP from the rhizome by hydrodistillation and analyzed the chemical composition by headspace solid-phase microextraction coupled with gas chromatography/mass spectrometry (HS-SPME-GC/MS). A total of 22 volatile compounds were identified where trans-anethole (78.54%) and estragole (19.36%) were the major components in the EOEP. The antimicrobial activity of EOEP was evaluated based on the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) values using the broth dilution method and enumerating cell death overtime. Our work shows that the EOEP exhibits potent antibacterial activity against foodborne pathogenic Gram-positive bacteria, namely Bacillus cereus, Staphylococcus aureus and Listeria monocytogenes in the range of 0.1–0.3% (v/v). We further investigated the mechanism of EOEP inhibition using Synchrotron Fourier transformation infrared (FTIR) microspectroscopy. Here, we show significant differences in DNA/nucleic acid, proteins and cell membrane composition in the bacterial cell. To conclude, EOEP exhibited antimicrobial activity against foodborne pathogens, especially the Gram-positive bacteria associated with ready-to-eat (RTE) food and, thus, has the potential to serve as a natural preservative agent in RTE products.


2012 ◽  
Vol 84 (6) ◽  
pp. 2900-2907 ◽  
Author(s):  
Jana C. Jokerst ◽  
Jaclyn A. Adkins ◽  
Bledar Bisha ◽  
Mallory M. Mentele ◽  
Lawrence D. Goodridge ◽  
...  

Planta Medica ◽  
2015 ◽  
Vol 81 (11) ◽  
Author(s):  
MI Aguilar ◽  
JF Rivero-Cruz ◽  
G Duarte-Lisci ◽  
C Alvarado-López

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
JAA do Nascimento Júnior ◽  
BS dos Santos ◽  
LCA de Araújo ◽  
AVA Lima ◽  
TD da Silva ◽  
...  

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