Is the ethylene gas that is used to ripen tomatoes quickly in supermarkets safe? Ethylene gas is produced naturally by most fruits, such as tomatoes, bananas, peaches, and avocados, and it promotes ripening. Most tomatoes today are picked green and transported unripe to protect them from bruising and spoilage.
Galactose (galacto- + -ose, milk sugar), sometimes abbreviated Gal, is a monosaccharide sugar that is less sweet than glucose and fructose.It is a C-4 epimer of glucose. Galactan is a polymer of the sugar galactose found in hemicellulose.Galactan can be converted to galactose by hydrolysis.alactose is a monosaccharide. When combined with glucose (monosaccharide), through a condensation reaction, the result is the disaccharide lactose. The hydrolysis of lactose to glucose and galactose is catalyzed by the enzymes lactase and Î²-galactosidase.
Galactosemia is an inherited defect of galactose metabolism caused by an enzyme deficiency that prevents proper metabolism and utilization of galactose, or milk sugar.The main dietary source of galactose is lactose, the principle carbohydrate found in all forms of milk.alactosemia is inherited in an autosomal recessive pattern. As an autosomal recessive disorder, the parents of a child with galactosemia are unaffected, healthy carriers of the condition and have one normal gene and one abnormal gene.