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Food Chem

Title:		Development of sensitive and selective food sensors using new Re(I)-Pt(II) bimetallic complexes to detect volatile biogenic sulfides formed by meat spoilage
Author(s):		Chow CF; Ho PY; Sun D; Lu YJ; Wong WL; Tang Q; Gong CB;
Address:		"Department of Science and Environmental Studies, The Education University of Hong Kong, 10 Lo Ping Road, Tai Po, Hong Kong SAR, China; College of Chemistry and Chemical Engineering, Southwest University, Chong Qing, China; Centre for Education in Environmental Sustainability, The Education University of Hong Kong, 10 Lo Ping Road, Tai Po, Hong Kong SAR. Electronic address: cfchow@ied.edu.hk. Centre for Education in Environmental Sustainability, The Education University of Hong Kong, 10 Lo Ping Road, Tai Po, Hong Kong SAR. Centre for Education in Environmental Sustainability, The Education University of Hong Kong, 10 Lo Ping Road, Tai Po, Hong Kong SAR; School of Pharmaceutical Science, Wenzhou Medical University, University-town, Wenzhou, Zhejiang, China. Institute of Natural Medicine and Green Chemistry, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China. Department of Science and Environmental Studies, The Education University of Hong Kong, 10 Lo Ping Road, Tai Po, Hong Kong SAR, China; College of Chemistry and Chemical Engineering, Southwest University, Chong Qing, China. Electronic address: qiantang@swu.edu.cn. Department of Science and Environmental Studies, The Education University of Hong Kong, 10 Lo Ping Road, Tai Po, Hong Kong SAR, China; College of Chemistry and Chemical Engineering, Southwest University, Chong Qing, China. Electronic address: gongcbtq@swu.edu.cn"
Journal Title:		Food Chem
Year:		2017
Volume:		20160817
Issue:
Page Number:		382 - 389
DOI:		10.1016/j.foodchem.2016.08.046
ISSN/ISBN:		1873-7072 (Electronic) 0308-8146 (Linking)
Abstract:		"Detection of volatile biogenic sulfides (VBS) plays a crucial role in food safety because the amounts of these compounds can reflect the freshness of meat. A new indicator-displacement assay with Re(I)-Pt(II) complexes, [Re(Lig)(CO)3(bridge)]-[Pt(DMSO)(Cl)2] (1: Lig=5-phenyl-1,10-phenanthroline and bridge=NCS(-); 2: Lig=5-phenyl-1,10-phenanthroline and bridge=CN(-); 3: Lig=2,2'-biquinoline and bridge=NCS(-)), was demonstrated to be a very effective sensing method to VBS. The results indicated that the control of Re(I)-bridge-Pt(II) and Re(I)-ligand combination are able to regulate their sensing selectivity and sensitivity. This system was successfully applied to detect CH3SCH3 in real rotten pork with a linear luminometric response up to 20.0mgkg(-1) (R=0.997) with the detection limit as 0.05 mgkg(-1). Complex 1 also gave comparable results on the detection of VBS with respect to those determined by GCMS with recovery range from 76% to 102% (RSD%=13.8)"
Keywords:		Animals *Coordination Complexes Dimethyl Sulfoxide/chemistry Food Storage Phenanthrolines/chemistry Platinum/*chemistry Quinolines/chemistry Red Meat/*analysis Rhenium/*chemistry Sensitivity and Specificity Sulfides/*analysis Swine Volatile Organic Compou;
Notes:		"MedlineChow, Cheuk-Fai Ho, Pui-Yu Sun, Dong Lu, Yu-Jing Wong, Wing-Leung Tang, Qian Gong, Cheng-Bin eng England 2016/09/07 Food Chem. 2017 Feb 1; 216:382-9. doi: 10.1016/j.foodchem.2016.08.046. Epub 2016 Aug 17"