MICR 2420 Lecture 23: MICROBES & FOOD
15 Aug 2020
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Document Summary
Fungi: agaricus bisporus grown in the dark on compost button & portobello mushroom. Or by inoculation into logs of wood shiitake, oyster, enoki: edible mushrooms very high in protein (similar to milk ,up to. 25%) with all essential amino acids + vitamins. They produce a hormone similar to the male sex hormone called adenosterol in male boars" saliva. Cell wall contains porphyran (a complex polysaccharide) : need to get digested by porphyranase enzyme found in marine bacteria. Japanese ppl have more of it in their microbiota. lateral gene transfer proposed. Occurs at all points of the food chain : before harvest, during transport, storage, preparation. Fungi puccinia = wheat rust: pathogen contamination can cause: There"s a toxin or toxic compound present and will spread but not necessarily microbe present. While treating for fungus, the toxins might still stay= carcinogen e. g clostrodium botulinum botulism anaerobic, toxic, endospore-forming (self-reproductive), gram positive!
