Pectic acid applications

Physical Methods. Infrared (IR), Raman, and nuclear magnetic resonance (NMR) spectroscopic methods have been applied to structural analysis of polysaccharides such as pectin. These applications have been reviewed ( ), and reference IR spectra of pectic substances have been published ( ). Quantitative IR has been used to estimate acid dissociation constants of polyuronides from the ratio of -CO2H to -CO2- as a function of pH ( ). Also, by... 

Sugar in Gels. Pectic substances are treated in detail in this symposium by Joseph. The role of sugar in gel formation is considered to be primarily one of dehydration (54). Sugar and acid both affect gelatinization of starch. Steiner (105) discusses applications to food production. 

A number of reports are in record on the chemistry, characterization, functional physiological properties, and applications of the pectic polysaccharides, a natural polymer. The foregoing discussion divulge that the long chain polymer of a-D-galacturonic acids, which find their existence outside the protoplasm of a plant cell have a number... 

---