Gelatin is a transparent substance, having no color, flavor, easily
breakable and almost having no taste. It is consequent from animal bones
and skin. Gelatin is categorized as foodstuff and it is produced by the
irreversible hydrolysis of collagen. Mostly it is imported from the
foreign countries, where the gelatin is extracted from pigs and other
unlawful raw material, which is strongly forbidden to consume, according
to Islamic code of conduct. More often yoghurt is produced by the
controlled fermentation of milk by using two species of bacteria
(Lactobacillus sp. and Streptococcus sp.). Gelatin can be used as a
stabilizer in yoghurt. The present study was designed with objectives to
optimize the conditions for gelatin extraction from bones of cow and
buffalo and to compare the activity of extracted gelatin with commercial
gelatin in yoghurt as stabilizing agent.