What We Knew in 1968

• “While dietary carbohydrate provides a source of energy and the substrates for many synthetic pathways, animals and man can be maintained on diets devoid of carbohydrate.”
• “Another group of heterosaccharides is found in the mucoproteins of serum among the a-globulins …On hydrolysis,  these yield galactose, mannose, a hexosamine, fucose, and a sialic acid.”
• “The immunologically specific substances with blood group activity are also heterosaccharides…”

 Source: White, Handler & Smith.Principles of Biochemistry, 1968.