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During fermentation, acetaldehyde is produced directly from lactose metabolism as a result of pyruvate decarboxylation.—Ashton Yoon, Discover Magazine, 4 July 2017 In the cells, glucose is broken down into pyruvate.—James Robinson, Discover Magazine, 20 Oct. 2022 One type of pyruvate tracer reveals how much carbon is given off during daytime respiration—a key part of the carbon cycle that needs to be better quantified, Werner says.—Erik Stokstad, Science | AAAS, 16 Oct. 2019
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