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ARS Home » Pacific West Area » Albany, California » Western Regional Research Center » Healthy Processed Foods Research » Research » Publications at this Location » Publication #324444
Research Project: Defining, Measuring, and Mitigating Attributes that Adversely Impact the Quality and Marketability of Foods

Location: Healthy Processed Foods Research

Title: Light Scattering based detection of food pathogens

Author
item Liang, Peishih
item PARK, TU SAN - University Of Arizona
item YOON, JEONG-YEOL - University Of Arizona

Submitted to: Book Chapter
Publication Type: Book / Chapter
Publication Acceptance Date: 7/22/2015
Publication Date: 3/17/2016
Citation: Liang, P., Park, T., Yoon, J. 2016. Light scattering based detection of food pathogens. In: Renfu, L., editor. Light Scattering Technology for Food Property, Quality and Safety Assessment. Boca Raton, Florida: CRC Press. p. 429-444.

Interpretive Summary: This manuscript is submitted as a chapter in the book titled Light Scattering Technology for Food Property, Quality and Safety Assessment. In this chapter, authors specifically reviewed several detection methods for foodborne pathogens that are based on Mie Scattering including latex particle immunoassay, refraction pattern imaging and methods that utilized smartphone technology.

Technical Abstract: The current methods for detecting foodborne pathogens are mostly destructive (i.e., samples need to be pretreated), and require time, personnel, and laboratories for analyses. Optical methods including light scattering based techniques have gained a lot of attention recently due to its their rapid and nondestructive nature. Specifically, latex particle immunoagglutination assay and subsequent Mie scattering detection (i.e. particle enhanced light scattering immunoassay) for detecting foodborne pathogens is presented as a more sensitive and portable method than the direct scattering detections. In addition to that, refraction pattern imaging and light scattering pattern analysis are also reviewed as label-free methods to detect, quantify and/or identify pathogens. The assays developed in portable or handheld format (especially smartphone-based) are introduced as well.