Raman and FTIR spectroscopic study of carboxymethylated non-starch polysaccharides
By S. Yuen, Siu-Mei Choi, D. Phillips, C. Ma. 2009
296 citations recorded by the source corpus.
Four types of non-starch polysaccharides including cellulose, guar gum, locust bean gum and xanthan gum were modified by carboxymethylation. The degree of substitution (DS) was determined by a colorimetric method. Raman and Fourier transform infrared spectra of the native and modified polysaccharides were acquired and analysed. Representative marker bands, with intensities and/or integrated areas affected by carboxymethylation, were selected at 1607 cm−1 (Raman) and 1315 cm−1 or 1605 cm−1 (IR), attributed to CO carbonyl stretching vibration. The ratios of intensities (or areas) of the marker bands to that of an internal standard band, corresponding to the skeletal configuration and linkages (850–950 cm−1), were plotted against DS. Linear fits were obtained with high correlation coefficients, r > 0.96 (p < 0.01), suggesting a strong correlation between the spectroscopic data and DS determined by wet chemistry. Some structural changes were also observed from the spectral data.
Subfields: Food Science, Nutrition and Dietetics, Plant Science
View Paper: https://www.semanticscholar.org/paper/0244ddc6357ae96ca3240fbea6d86c360ecf7491
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Citations in the corpus
- Effect of glycerol and corn oil on physicochemical properties of polysaccharide films – A comparative study (2012, background): “…and 3100 cm 1, associated to creasing glycerol (Gly) (a) and oil (b) concentrations. the OeH stretching vibration, shows a lower intensity that can be associated with hydroxyl bonds of the films that decrease when oil is added to the film (Yuen et al., 2009), leading to a more hydrophobic matrix.”
- Sodium periodate oxidation of cellulose nanocrystal and its application as a paper wet strength additive (2015, background): “The broad peak at 3413 cm-1 is due to the stretching of hydroxyl groups (Peng et al. 2009); and the peak at 1298 cm-1 is assigned to the hydroxyl group bending vibration (Yuen et al. 2009).”
- Highly charged nanocrystalline cellulose and dicarboxylated cellulose from periodate and chlorite oxidized cellulose fibers (2013, background): “OH bending vibration (Yuen et al. 2009); the peaks at 2,900, 1,416 and 1,015 cm-1are assigned to C–”