Word: lignin
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Dates: during 1930-1939
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...detail as to method, the German declared that he is getting a digestible sugar, equal in food value to barley, from sawdust, which is mostly a waste product or burned as an inferior fuel in lumber mills. Of the sawdust 60% to 65% becomes sugar, 5% acetic acid, 30% lignin which again can be used to make charcoal or wallboard. The sugar can be converted into protein by treatment with yeast; into fat by feeding it to pigs. Dr. Bergius said last week that, "for the present," food-from-wood is being fed to animals; he avoided saying that...