A facility in Emeryville was revealed to produce this substance in roller bottles instead of bioreactors, as claimed by Uma Valeti. In June, Upside and a company named for a “GOOD” type of this substance were cleared to sell it in the United States after the latter’s rollout in Singapore. The first proof of concept for a synthesis of this substance was presented in 2013 by Dutch engineer Mark Post with anonymous funding from Sergey Brin. That synthetic form of this substance is made by seeding stem cells grown in fetal bovine serum to scaffolds. A company imitates this substance with soy leghemoglobin, whose iron-containing heme group mimics this substance’s taste. For 10 points, name this general class of foodstuff, substitutes for which are made by Beyond and Impossible Foods. ■END■
ANSWER: meat [accept types of meat like beef or pork; accept meat products like burgers or sausage; accept meat alternatives or meat substitutes; accept plant-based meat; accept cultured meat or synthetic meat or lab-grown meat]
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