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.
The structure of Galactose monosaccharide sugar is a normal chain of six carbon atoms. It is an isomer of Glucose and Fructose. Below is a structure of Galactose in open chain form: H-C=O. |. H-C-OH. |. OH-C-H. |. OH-C-H.-C-OH. |. OH. To understand the pyranose ring form of Galactose, draw a hexagon, assume the joints as carbon atoms except one joint-that is an oxygen atom. Let the joints be A, B, C, D, E, F. To the joints A, C, D, E, F, assume them to be carbon atoms, and the joint B to be oxygen atom.
Fig. 1 â beta-D-Galactopyranose Galactose, sometimes abbreviated Gal, is a monosaccharide and the C4 epimer of glucose, that is, they differ only for the position of the-OH group on C4 (axial in Gal, equatorial in glucose). It has a sweetness equal to 33% of sucrose.n hepatocytes, galactose enters the Leloir pathway. Freed from lactose, the monosaccharide is mostly present as beta-isomer, and the first step of its hepatic metabolism is the conversion to the alpha-isomer, in the reaction catalyzed by galactose mutarotase (also known as aldose 1-epimerase).