Adsorptive Properties of Clay Minerals

Mukherjee, The Science of Clays Applications in Industry, Engineering and Environment 151 [Pg.151]

Clay minerals can serve as gas adsorbents in patients with symptoms of flatulence and abdominal distension. Thus, smectite can reduce the amount of hydrogen emitted during colonic fermentation. [Pg.152]

Due to adsorptive property, clays can adsorb a variety of toxic substances, such as strychnine, mycotoxins, aflatoxin and toxins. Clay can provide active protection against disturbances dming gastrointestinal transit. However, if the toxin is incubated with smectite for 24 h beforehand, no increase in the rate of gastric emptying and small intestinal transit occurs. Smectite can also adsorb the enterotoxin of Clostridium difficile. In rats, this toxin causes intestinal permeability to increase through hyperseeretion of colonic water. [Pg.152]

Clay minerals can also protect the digestive mueosa against pestieide damage. Diquat, a widely used non-seleetive desieeant herbicide, induees erosion of intestinal mucosa and fluid hypersecretion. Similarly, montmorillonite and bentonite are good adsorbents, and may be reeommended for the treatment of pesticide poisoning. [Pg.152]

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