Detection of bacterial concentration variations based on dielectric magnetic flux

Jingyao Chen; Jie Cai; Xingjian Huang; Tian Yi; Kexing Wang; Siyi Pan

doi:10.1016/j.foodchem.2015.07.048

Detection of bacterial concentration variations based on dielectric magnetic flux

Food Chem. 2016 Feb 1:192:642-6. doi: 10.1016/j.foodchem.2015.07.048. Epub 2015 Jul 11.

Authors

Jingyao Chen¹, Jie Cai², Xingjian Huang¹, Tian Yi³, Kexing Wang¹, Siyi Pan⁴

Affiliations

¹ College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
² College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China.
³ Hubei Academy of Agricultural Sciences, Wuhan 430064, Hubei, China.
⁴ College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China. Electronic address: siyipan@outlook.com.

PMID: 26304394
DOI: 10.1016/j.foodchem.2015.07.048

Abstract

This study is based on the development of bacterial count quantification generated by medium dielectric variations and consequent polarization material release. The proposed approach is an action method for the fast detection of bacterial concentration in orange juice. The sensing method relies on bacterial attachment up to biofilm formation. Furthermore, different media provide more oxygen group content to enhance capacitance and self-discharge. The test took only 30 min and it provided the means for rapid bacterial detection in the juice industry.

Keywords: Bacteria count; Dielectric constant; Electrical polarization; Rheology.

MeSH terms

Bacteria / isolation & purification*
Bacterial Adhesion
Beverages / microbiology*
Biofilms
Citrus sinensis*
Fruit / microbiology*