chipping a discovery 4

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I don't know of marmite, so I can't say. I'd go with with spray cheese/waxoyl.

According to wiki - While the process is secret, the general method for making yeast extract on a commercial scale is to add salt to a suspension of yeast, making the solution hypertonic, which leads to the cells shrivelling up; this triggers "autolysis", in which the yeast self-destructs. The dying yeast cells are then heated to complete their breakdown, and since yeast cells have thick hull walls which would detract from the smoothness of the end product, the husks are sieved out. As with other yeast extracts, Marmite contains free glutamic acids, which are analogous to monosodium glutamate (MSG).

Doesn't that sound yummy?!
 
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