BIMM 120 Lecture Notes - Lecture 12: Saccharomyces Cerevisiae, Zymomonas Mobilis, Pulque
26 Dec 2018
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Industrial fermentation: food like bread, yogurt, kimchi, etc. Then merges into glycolytic pathway to produce pyruvate: produces 1 atp, 1 nadph, and 1 nadh. Less energy produced compared to glycolysis, but creates a short cut to more efficient ways of atp production: bacteria that use this: pseudomonas, rhizobium, agrobacterium, & zymomonas (bacterium used for pulque production/alcohol, first 3 are strict aerobes. Not as resistant as endospores, but allow survival in poor conditions: beer and wine produced through polyploid yeasts, who have more copies of. Dna, capable of producing alcohol fermentation produces side-products that give alcohol specific taste: zymomonas creates alcohol for pulque, pentose-phosphate pathway -> glycolysis and fermentation -> 1 atp + 1 nadph. + 1 nadh + 2 etoh: pasteur effect, oxygen inhibits" fermentation, facultative anaerobes can perform both fermentation and aerobic respiration, with oxygen: consumes less glucose. Can make 100 atps with 2-3 glucose: without oxygen: consumes more glucose.
