Sugars in the context of Galactose

Vinegar (from Old French vyn egre 'sour wine') is an odorous aqueous solution of diluted acetic acid and trace compounds that may include flavorings or naturally occurring organic compounds. Vinegar typically contains from 4% to 18% acetic acid by volume.

Usually, the acetic acid is produced by a double fermentation—converting simple sugars to ethanol using yeast, and then converting ethanol to acetic acid using acetic acid bacteria. Many types of vinegar are made, depending on source materials.

The sugar industry subsumes the production, processing and marketing of sugars (mostly sucrose and fructose). In 2017, worldwide production of table sugar amounted to 185 million tonnes.

Sugar is used for soft drinks, sweetened beverages, convenience foods, fast food, candy, confectionery, baked products, and other sweetened foods. Sugarcane is used in the distillation of rum. Sugarcane produces several valuable byproducts that play a significant role in supporting economic growth.

In chemistry, the Fischer projection, devised by Emil Fischer in 1891, is a two-dimensional representation of a three-dimensional organic molecule by projection. Fischer projections were originally proposed for the depiction of carbohydrates, such as sugars, and used particularly in organic chemistry and biochemistry. The main purpose of Fischer projections is to visualize chiral molecules and distinguish between a pair of enantiomers. The use of Fischer projections in non-carbohydrates is discouraged, as such drawings are ambiguous and easily confused with other types of drawing.

Glyoxysomes are specialized peroxisomes found in plants (particularly in the fat storage tissues of germinating seeds) and also in filamentous fungi. Seeds that contain fats and oils include corn, soybean, sunflower, peanut and pumpkin. As in all peroxisomes, in glyoxysomes the fatty acids are oxidized to acetyl-CoA by peroxisomal β-oxidation enzymes. When the fatty acids are oxidized hydrogen peroxide (H₂O₂) is produced as oxygen (O₂) is consumed. Thus the seeds need oxygen to germinate. Besides peroxisomal functions, glyoxysomes possess additionally the key enzymes of the glyoxylate cycle (isocitrate lyase and malate synthase) which accomplish the glyoxylate cycle bypass.

Thus, glyoxysomes (as all peroxisomes) contain enzymes that initiate the breakdown of fatty acids and additionally possess the enzymes to produce intermediate products for the synthesis of sugars by gluconeogenesis. The seedling uses these sugars synthesized from fats until it is mature enough to produce them by photosynthesis.