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Showing papers by "Gadjah Mada University published in 1973"


Journal ArticleDOI
TL;DR: The production and presence of lactase is in the brush-border of the intestinal epithelial cells and its activity takes place within those cells, and the lactase activity is ditributed uniformly throughout the small intestines, except in the duodenum and distal ileum where low levels are found.
Abstract: Lactose occurring naturally only in milk, must be hydrolyzed into glucose and galactose by small-intestinal enzyme lactase in order to be utilized. The production and presence of lactase is in the brush-border of the intestinal epithelial cells and its activity takes place within those cells (Johnson, 1967; Levine and Haft, 1970). The lactase activity is ditributed uniformly throughout the small intestines, except in the duodenum and distal ileum where low levels are found (Auricchio, et al.,1965).

10 citations


Journal ArticleDOI
Juntono1
TL;DR: Members of the families Nostocaceae and Oscillatoriaceae were generally more abundant than other families and a major role for blue-green algae in the N-economy of flooded soils was indicated.
Abstract: Preliminary studies were made to evaluate the role of the blue-green algae in flooded rice soils in the Jogjakarta district of central Java. They included identification of the components of the blue-green algal populations and the effects of fertilizers. The main findings were: (1) members of the families Nostocaceae (7 genera and 12 species recognized) and Oscillatoriaceae (8 genera and 18 species) were generally more abundant than other families; (2) application of nitrogen and phosphorus fertilizers affected the composition (reduction in numbers of nitrogen-fixing blue-green algae) and total size of the populations (increase in algal biomass); (3) a major role for blue-green algae in the N-economy of flooded soils was indicated.

8 citations


Journal ArticleDOI
TL;DR: It is well accepted that milk is the only source of nutrition for newborn infants, and human milk as well as cow's milk contains a considerable amount of specific carbohydrate, namely lactose.
Abstract: It is well accepted that milk is the only source of nutrition for newborn infants. Human milk as well as cow's milk contains a considerable amount of specific carbohydrate, namely lactose. Lactose must be hydrolyzed into its components monosaccharides, glucose and galactose by small intestinal enzyme lactase in order to be utilized.

1 citations