Glucomannan research

The use of PCA for the classification of both natural and synthetic polymers was demonstrated by Vazquez et al. [119]. In their work, the researchers recorded Totai X-Ray Fluorescence (TXRF) spectra of scleroglucan, xanthan, glucomannan, poly(ethylene oxide), and polyacrylamide and subjected the resulting spectral data to PCA. To the naked eye, the X-ray fluorescence spectra of the polymers look virtually identical. However, when subjected to PCA it could be shown that the first two principal components contain approximately 96% of the variance in the dataset. When plotting the scores of the two components against each other, six distinct clusters are observed, which clearly differentiate the individual polymers. 

Todd KL (1982) An evaluation of potential markets for New Zealand softwood plywood exports. MForSc, University of Canterbury, Christchurch, New Zealand Tokoh C, Takabe K, Fujita M and Sadd H (1998) Cellulose synthesized by Acetobacter xylinun in the presence of acetyl glucomannan. Cellulose, 5 249-61 TRADA (1974) Visual stress grading of timber. Timber Research and Development Association, High Wycombe, UK... 

Amylose and starch, both derived from potato, were commercial samples. Glucomannan and xylan were isolated from spruce and beech holocelluloses, respectively, and purified by the usual method (12). Pectin was isolated and purified from the midrib of Nicotiana taba-cum and kindly provided by Dr. Shigeru Eda at The Central Research Institute, Japan Tobacco Inc. ( ). 

Cui, HJ, ZM He and CY Jia (1993). Study on immobilization of cyclodextrin glycosyltransferase using Konjac glucomannan. Natural Product Research and Development, 5(3), 48-54. (in Chinese)... 

Zhou, G., Li, Y, Zhang, L., Zuo, Y, Jansen, J.A., 2007. Preparation and characterization of nano-hydroxyapatite/chitosan/konjac glucomannan composite. Journal of Biomedical Materials Research Part A 83 (4), 931-939. 

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