University:
North Seattle College
Course:
CHEM 122 | Introduction to Organic Chemistry
Academic year:

2022
Views:

21

Pages:

11
Author:

Matthew Clark

# Alcoholic fermentation In alcoholic fermentation, pyruvate is Converted to ethanol and Co₂. This process is charactersticks of yeasts particularly strains of Saccharomyces cerevaisine. It is alse found in mucorales, biet is con comparatively sme in bar-train, 13, the bacterium pseudonomous, hijrivate is produced through Enther Duodorff pathway. It is then metabolized to sthand through, acetal- aldehyde. (i) lyruvate is first decarbonylated, fielding acetaaldehyde And Coz. the reaction is catalyze through the enzyme pyruvate decarboxylase, with thiamine pyphosphate (TPP) as the coenzyme. GLUCOSE 2 NADH+H C=0 CH3 2 PYRUVATE H-C =〇 CCH₃ 2 NADH +H+ 2 NAD+ CHCH CH3 2-ACETALDEHYDE ALCOHDAL DEHYDROGENASE 2-ETHANOL Fig: Alcohalic fermentation in yeats (ii) Acetaldehyde is then redused to ethanol by NADH +H" (NADH) and NAD" is regenerated. The catalysing enzyme is aicelist dehydrogenase. # Alcoholic fermentation In alcoholic fermentation, pyruvate is Converted to ethanol and Co₂. This process is charactersticks of yeasts particularly strains of Saccharomyces cerevaisine. It is alse found in mucorales, biet is con comparatively sme in bar-train, 13, the bacterium pseudonomous, hijrivate is produced through Enther Duodorff pathway. It is then metabolized to sthand through, acetal- aldehyde. (i) lyruvate is first decarbonylated, fielding acetaaldehyde And Coz. the reaction is catalyze through the enzyme pyruvate decarboxylase, with thiamine pyphosphate (TPP) as the coenzyme. GLUCOSE 2 NADH+H C=0 CH3 2 PYRUVATE H-C =〇 CCH₃ 2 NADH +H+ 2 NAD+ CHCH CH3 2-ACETALDEHYDE ALCOHDAL DEHYDROGENASE 2-ETHANOL Fig: Alcohalic fermentation in yeats (ii) Acetaldehyde is then redused to ethanol by NADH +H" (NADH) and NAD" is regenerated. The catalysing enzyme is aicelist dehydrogenase. # Cleansing Action of Soops and Detergents All the soaps and detergents Contain two characterif'stics groups, ie, a water soluble (bydrophilic) group and an oil soluble (lysphilic). One end of the molecule of a soap ga detergents tends to go into oil phase and other end tends to go into the water phase, with the het result that the material Concentrates at the surface. C17H35-C-O-Na+ Lipophilic part Hydrophilic prent • Nov Polan group Oil on Grease Water Lipophistic prost R 5-0 Na Hydrophilic part → when the dirty surface is treated with soap solution, the non-polas hydrocarbs chain of the soap or detergent dissolves in oil or grease and the carboxylate gooi of the soap water. or the sulphonate group of the synthetic detergent is held by surround This lowers the surface tension betiocen water and grease, As a result, a stable emulsion of oil in water is formed. when the surface of the cloth is mechanically scrubbed, the loosened dirt particles are adsorbed.by Celloidal soap or detergent particles and ultimately washed away.