Mid-Infrared as a New Tool for Detecting Adulteration in Fruit Products

Marianne Defernez; Evelyn K Kemsley; Reginald H Wilson

doi:10.1007/978-3-7091-6840-0_25

Mid-Infrared as a New Tool for Detecting Adulteration in Fruit Products

Marianne Defernez, Evelyn K Kemsley, Reginald H Wilson

Population Health

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper illustrates the use of attenuated total reflectance (ATR) spectra of fruit purees or jams, and diffuse reflectance (DRIFT) spectra of jams, to provide the chemical information necessary to check the composition and authenticity of these products. The fingerprint region contains information reflecting the carbohydrate, acid, and pectin content. Although differences between products from different fruit types, or between genuine and adulterated samples, can be seen in the spectra by eye, the samples cannot be identified unambiguously by visual inspection. Statistical methods can aid this identification, however. An example of the use of principal component analysis is presented, enabling genuine raspberry purees to be distinguished from raspberry purees doctored by the addition of sucrose solution to a level of about 6% sucrose.

Original language	English
Title of host publication	Progress in Fourier Transform Spectroscopy
Subtitle of host publication	Proceedings of the 10th International Conference, August 27 – September 1, 1995, Budapest, Hungary
Editors	János Mink, Gábor Keresztury, Robert Kellner
Publisher	Springer
Pages	181-182
Number of pages	2
ISBN (Electronic)	978-3-7091-6840-0
ISBN (Print)	978-3-211-82931-8
DOIs	https://doi.org/10.1007/978-3-7091-6840-0_25
Publication status	Published - 1997
Event	10th International Conference - Budapest, Hungary Duration: 27 Aug 1995 → 1 Sep 1995

Conference

Conference	10th International Conference
Country/Territory	Hungary
City	Budapest
Period	27/08/95 → 1/09/95

Access to Document

10.1007/978-3-7091-6840-0_25

Cite this

Defernez, M., Kemsley, E. K., & Wilson, R. H. (1997). Mid-Infrared as a New Tool for Detecting Adulteration in Fruit Products. In J. Mink, G. Keresztury, & R. Kellner (Eds.), Progress in Fourier Transform Spectroscopy: Proceedings of the 10th International Conference, August 27 – September 1, 1995, Budapest, Hungary (pp. 181-182). Springer. https://doi.org/10.1007/978-3-7091-6840-0_25

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abstract = "This paper illustrates the use of attenuated total reflectance (ATR) spectra of fruit purees or jams, and diffuse reflectance (DRIFT) spectra of jams, to provide the chemical information necessary to check the composition and authenticity of these products. The fingerprint region contains information reflecting the carbohydrate, acid, and pectin content. Although differences between products from different fruit types, or between genuine and adulterated samples, can be seen in the spectra by eye, the samples cannot be identified unambiguously by visual inspection. Statistical methods can aid this identification, however. An example of the use of principal component analysis is presented, enabling genuine raspberry purees to be distinguished from raspberry purees doctored by the addition of sucrose solution to a level of about 6% sucrose.",

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note = "10th International Conference ; Conference date: 27-08-1995 Through 01-09-1995",

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Defernez, M , Kemsley, EK & Wilson, RH 1997, Mid-Infrared as a New Tool for Detecting Adulteration in Fruit Products. in J Mink, G Keresztury & R Kellner (eds), Progress in Fourier Transform Spectroscopy: Proceedings of the 10th International Conference, August 27 – September 1, 1995, Budapest, Hungary. Springer, pp. 181-182, 10th International Conference, Budapest, Hungary, 27/08/95. https://doi.org/10.1007/978-3-7091-6840-0_25

Mid-Infrared as a New Tool for Detecting Adulteration in Fruit Products. / Defernez, Marianne ; Kemsley, Evelyn K; Wilson, Reginald H.

Progress in Fourier Transform Spectroscopy: Proceedings of the 10th International Conference, August 27 – September 1, 1995, Budapest, Hungary. ed. / János Mink; Gábor Keresztury; Robert Kellner. Springer, 1997. p. 181-182.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - Mid-Infrared as a New Tool for Detecting Adulteration in Fruit Products

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N2 - This paper illustrates the use of attenuated total reflectance (ATR) spectra of fruit purees or jams, and diffuse reflectance (DRIFT) spectra of jams, to provide the chemical information necessary to check the composition and authenticity of these products. The fingerprint region contains information reflecting the carbohydrate, acid, and pectin content. Although differences between products from different fruit types, or between genuine and adulterated samples, can be seen in the spectra by eye, the samples cannot be identified unambiguously by visual inspection. Statistical methods can aid this identification, however. An example of the use of principal component analysis is presented, enabling genuine raspberry purees to be distinguished from raspberry purees doctored by the addition of sucrose solution to a level of about 6% sucrose.

AB - This paper illustrates the use of attenuated total reflectance (ATR) spectra of fruit purees or jams, and diffuse reflectance (DRIFT) spectra of jams, to provide the chemical information necessary to check the composition and authenticity of these products. The fingerprint region contains information reflecting the carbohydrate, acid, and pectin content. Although differences between products from different fruit types, or between genuine and adulterated samples, can be seen in the spectra by eye, the samples cannot be identified unambiguously by visual inspection. Statistical methods can aid this identification, however. An example of the use of principal component analysis is presented, enabling genuine raspberry purees to be distinguished from raspberry purees doctored by the addition of sucrose solution to a level of about 6% sucrose.

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Defernez M , Kemsley EK, Wilson RH. Mid-Infrared as a New Tool for Detecting Adulteration in Fruit Products. In Mink J, Keresztury G, Kellner R, editors, Progress in Fourier Transform Spectroscopy: Proceedings of the 10th International Conference, August 27 – September 1, 1995, Budapest, Hungary. Springer. 1997. p. 181-182 https://doi.org/10.1007/978-3-7091-6840-0_25