To the best of our knowledge, although the characteristics of
pectic polysaccharide for several plant species are known, polysaccharide from tobacco leaves has been little investigated [3].
The
pectic polysaccharide from Bupleumm falcatum L enhanced immune-complexes binding to peritoneal macrophages through Fcreceptor expression.
Pectic substances (acidic polysaccharides) were located on the epidermis and mesophyll only in the in vitro leaf samples (Figure 11) but in leaves of plants cultivated in the greenhouse and in embryos it was only observed the color of methylene blue (Figure 12).
[10] Alkorta, I., et al., 1998, "Industrial applications of
pectic enzymes: A review", Process Biochem., 33, pp.
The following histochemical tests were performed: Sudan IV for lipids; 10% aqueous ferric chloride to locate phenolic compounds; and Ruthenium red solution to detect
pectic compounds (Johansen 1940).
The CDTA-soluble
pectic substances from soybean meal are composed of rhamnogalacturonan and xylogalacturonan but not homogalacturonan.
G.R and Rastall R.A : Comparison of the in vitro bifidogenic properties of pectins and
pectic oligosaccharides.
One such fruit is Sapodilla (common name: Chiku) with a good concentration of
pectic substance found extensively along sea shore region of Pakistan.
Pomegranate contains from 8 to 19 percent of glucose and fructose, from 3 to 7 percent - citric acid, a large number of minerals, vitamins, fiber, and
pectic substances.
In addition, the following histochemical reactions were performed: Calcofluor White M2R under fluorescence (Hughes & McCull, 1975) for cellulose; Sudan IV (Jensen, 1962) for lipophilic substances; and ruthenium red (Gregory & Baas, 1989) for
pectic substances.