Lignin as Determined by Oxidation with Sodium Chlorite and a Comparison with Permanganate Lignin

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Abstract
Fifteen feedstuffs were selected for lignin determinations. Permanganate lignin and sodium chlorite lignin for the substrates were: ladino clover 4.94, 5.95; red clover 3.80, 5.02; Kentucky bluegrass 5.56, 6.06; Reed canary grass, full bloom 5.85, 5.35; Reed canary grass, 2nd cutting 5.33, 6.06; bromegrass 5.54, 5.54; orchardgrass 4.68, 6.73; tall fescue 3.13, 7.29; Reed foxtail 4.46, 4.99; alfalfa 6.21, 5.66; wheat straw 12.44, 8.72; elodea 4.09, 3.65; cattle manure 9.61, 13.07; birdsfoot trefoil 8.73, 6.76; and wheat middlings 4.63, 7.09. Differences in lignin values were considerable with the various substrates, but sodium chlorite lignin values generally tended to be higher than permanganate lignin.