Study of the infrared spectra of oligosaccharides in the region 1,000-40 cm−1

Tulchinsky, V. M.; Zurabyan, S. E.; Asankozhoev, Kasym A.; Kogan, G. A.; Khorlin, A. Ya.

doi:10.1016/s0008-6215(00)84031-8

Cited by 94 publications

(42 citation statements)

References 22 publications

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“…The 900±750 cm À1 wavenumber range corresponds to the anomeric region and is characteristic of the saccharide con®guration. 32 The bands in the 904±1153 cm…”

Section: Resultsmentioning

confidence: 99%

Detection of inverted beet sugar adulteration of honey by FTIR spectroscopy

Sivakesava

Irudayaraj

2001

J Sci Food Agric

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A combination of Fourier transform infrared (FTIR) spectroscopy and multivariate statistics as a screening tool for the determination of beet medium invert sugar adulteration in three different varieties of honey is discussed. Honey samples with different concentrations of beet invert sugar were scanned using the attenuated total re¯ectance (ATR) accessory of the Bio-Rad FTS-6000 Fourier transform spectrometer. The spectral wavenumber region between 950 and 1500 cm À1 was selected for partial least squares (PLS) regression to develop calibration models for beet invert sugar determination in honey samples. Results from the PLS (®rst derivative) models were slightly better than those obtained with other calibration models. Predictive models were also developed to classify beet sugar invert in three different varieties of honey samples using discriminant analysis. Spectral data were compressed using the principal component method, and linear discriminant and canonical variate analyses were used to detect the level of beet invert sugar in honey samples. The best predictive model for adulterated honey samples was achieved with canonical variate analysis, which successfully classi®ed 88±94 per cent of the validation set. The present study demonstrated that Fourier transform infrared spectroscopy could be used for rapid detection of beet invert sugar adulteration in different varieties of honey.

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“…The 900±750 cm À1 wavenumber range corresponds to the anomeric region and is characteristic of the saccharide con®guration. 32 The bands in the 904±1153 cm…”

Section: Resultsmentioning

confidence: 99%

Detection of inverted beet sugar adulteration of honey by FTIR spectroscopy

Sivakesava

Irudayaraj

2001

J Sci Food Agric

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“…The 900-750 cm À1 region is the anomeric region and is characteristic of the saccharide configuration. 36 The bands in the 904-1153 cm…”

Section: Results and Discussion Ftir Spectramentioning

confidence: 99%

Discrimination and classification of adulterants in maple syrup with the use of infrared spectroscopic techniques

2003

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Food adulteration is a profit-making business for some unscrupulous manufacturers. Maple syrup is a soft target of adulterators owing to its simplicity of chemical composition. In this study the use of Fourier transform infrared (FTIR) spectroscopy and near-infrared (NIR) spectroscopy to detect adulterants such as cane and beet invert syrups as well as cane and beet sugar solutions in maple syrup was investigated. The FTIR spectrum of adulterated samples was characterised and the regions 800-1200 cm À1 (carbohydrates) and 1200-1800 and 2800-3200 cm À1 (carbohydrates, carboxylic acids and amino acids) were used for detection. The region between 1100 and 1660 nm in the NIR spectrum was used for analysis. Linear discriminant analysis (LDA) and canonical variate analysis (CVA) were used for discriminant analysis, while partial least squares (PLS) and principal component regression (PCR) were used for quantitative analysis. FTIR was more accurate in predicting adulteration using two different regions (R 2 > 0.93 and >0.98) compared with NIR (R 2 > 0.93). Classification and quantification of adulterants in maple syrup show that NIR and FTIR can be used for detecting adulterants such as pure beet and cane sugar solutions, but FTIR was superior to NIR in detecting invert syrups.

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“…The fingerprint area at 950-750 cm -1 (Tul'chinsky et al, 1976;Mathlouthi et al, 1986) has been mostly discussed. The spectrum band of three types of alginate at 930-940 cm -1 is referred to C-O stretching of uronic acid residue (Leal et al, 2008).…”

Section: Ft-ir Spectroscopic Analysismentioning

confidence: 99%