Inspection of fecal contamination on strawberries using line-scan LED-induced fluorescence imaging techniques

Yung Kun Chuang, Chun Chieh Yang, Moon S. Kim, Stephen R. Delwiche, Y. Martin Lo, Suming Chen, Diane E. Chan

研究成果: 書貢獻/報告類型會議貢獻

摘要

In the United States, fecal contamination of produce is a food safety issue associated with pathogens such as Escherichia coli and Salmonella that can easily pollute agricultural products via animal and human fecal matters. Outbreaks of foodborne illnesses associated with consuming raw fruits and vegetables in the US have occurred more frequently in recent years. This problem not only threatens public health, but also results in a huge amount of unnecessary economic losses every year. Therefore, developing optical sensing technologies for the detection of contaminants on fresh produce is urgent and essential. Among fruits, strawberry is one high-potential vector of fecal contamination and foodborne illnesses since the fruit is often consumed raw and with minimal processing. In the present study, line-scan LED-induced fluorescence imaging techniques were applied for inspection of fecal material on strawberries, and the spectral characteristics and specific wavebands of strawberries were determined by detection algorithms. The results indicated that the combination of two-waveband intensity ratios, such as 680 nm / 688 nm and 680 nm / 704 nm, can successfully distinguish fecal contamination, uncontaminated surfaces, and leaves. The binary images showed that the algorithm could successfully detect all of the fecal contamination spots that were applied to the strawberry surfaces. The results of this study would improve the safety and quality of produce consumed by the public.
原文英語
主出版物標題American Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012
發行者American Society of Agricultural and Biological Engineers
頁面838-844
頁數7
1
ISBN(列印)9781622762088
出版狀態已發佈 - 2012
對外發佈Yes
事件American Society of Agricultural and Biological Engineers Annual International Meeting 2012 - Dallas, TX, 美国
持續時間: 七月 29 2012八月 1 2012

會議

會議American Society of Agricultural and Biological Engineers Annual International Meeting 2012
國家美国
城市Dallas, TX
期間7/29/128/1/12

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Bioengineering

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  • 引用此

    Chuang, Y. K., Yang, C. C., Kim, M. S., Delwiche, S. R., Lo, Y. M., Chen, S., & Chan, D. E. (2012). Inspection of fecal contamination on strawberries using line-scan LED-induced fluorescence imaging techniques. 於 American Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012 (卷 1, 頁 838-844). American Society of Agricultural and Biological Engineers.