Examples of Analytical Approaches to Industrially Important Poly (Saccharides)
Poly(saccharides) are extensively used in a large variety of industries as emulsifiers, thickeners and stabilizers. Therefore, a need exists for the determination of purity and/or molecular weight of these materials. This paper uses some examples to describe different approaches to the problem. Carboxymethyl cellulose (CMC) is a thickening agent which is used in a large number of industries, including the food industry. A universal chemical method for the determination of CMC in all types of formulations has previously not been available; the development of such a method is described here. Also described is the development of a method for the determination of starch purity in starches. This measurement is a particular problem for the member countries of the European Community where high grade starches are subsidized. The method of choice is based on total enzyme hydrolysis and is applicable to all starches. There are a number of ways for the determination of molecular weights and molecular weight distribution of poly(saccharides). Most of these are based on some form of calibration and can therefore only give values relative to a particular standard.
KeywordsHyaluronic Acid Molecular Weight Distribution Total Sugar Content Detergent Formulation Differential Refractive Index
Unable to display preview. Download preview PDF.
- 1.J. F. Kennedy and E. H. M. Melo, in: “Cellulose: Structural and Functional Aspects,” J. F. Kennedy, C. O. Philips and P. A. Williams Eds., Ellis Horwood, Chichester, 1990, p. 2.Google Scholar
- 3.OJEC L158 3–5 (1986).Google Scholar
- 5.J. F. Kennedy, V. M. Calalda and K. Jumel, Starke, in press, (RP 372).Google Scholar
- 6.T. J. Palmer, In: “Glucose Syrups and Related Carbohydrates,” G. G. Birch, L. T. Green and C. B. Coulson, Eds., Applied Science, London, 1970, p. 23.Google Scholar
- 7.W. M. Fogarty, P. J. Griffin and A. M. Joyce, Process Biochem. 19 (6), 11 (1974).Google Scholar
- 8.D. Howling, In: “Sugar Science and Technology,”, G. G. Birch and K. J. Palmer, Eds., Applied Science, London, 1979, p. 263.Google Scholar