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RAPID AUTHENTICATION AND CONTENT DETERMINATION OF CONCORD GRAPE JUICE VIA FOURIER-TRANSFORM INFRARED SPECTROSCOPY AND CHEMOMETRIC ANALYSIS

Sweeney, Christian Francis
http://rave.ohiolink.edu/etdc/view?acc_num=osu1245176529

Abstract Details

2009, Master of Science, Ohio State University, Food Science and Nutrition.
Concord grape juice is an especially valuable fruit juice due to its unique composition, sensory sttributes, and health benefits. Currently, methods of authentication are impractical at production scale. We propose Fourier-Transform Infrared spectroscopy in combination with chemometric analysis as a rapid means of authenticating Concord grape juice. Authentic grape juice samples were used as training sets to create SIMCA and PLS models capable of qualitative and quantiavie analysis respectively. The SIMCA model was effective at discriminating pure 100% juices on the basis of variety and capable of predicting the varieties of unknown samples. The PLS model was capable of predicting the content of Concord grape juice in a grape juice blend with an associated error of 8.4%. These simple models show the feasibility of FT-IR coupled with chemometrics as production scale tools for Concord grape juice authentication.
Dr. M. Monica Giusti, PhD (Advisor)
Dr. Sherryl A. Barringer, PhD (Committee Member)
Dr. David B. Min, PhD (Committee Member)
71 p.
Food Science
Concord grape; grape juice; authentication; FT-IR; SIMCA; PLSR; chemometrics

Recommended Citations

Citations

  • Sweeney, C. F. (2009). RAPID AUTHENTICATION AND CONTENT DETERMINATION OF CONCORD GRAPE JUICE VIA FOURIER-TRANSFORM INFRARED SPECTROSCOPY AND CHEMOMETRIC ANALYSIS [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1245176529

    APA Style (7th edition)

  • Sweeney, Christian. RAPID AUTHENTICATION AND CONTENT DETERMINATION OF CONCORD GRAPE JUICE VIA FOURIER-TRANSFORM INFRARED SPECTROSCOPY AND CHEMOMETRIC ANALYSIS. 2009. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1245176529.

    MLA Style (8th edition)

  • Sweeney, Christian. "RAPID AUTHENTICATION AND CONTENT DETERMINATION OF CONCORD GRAPE JUICE VIA FOURIER-TRANSFORM INFRARED SPECTROSCOPY AND CHEMOMETRIC ANALYSIS." Master's thesis, Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1245176529

    Chicago Manual of Style (17th edition)

osu1245176529
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© 2009, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.
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