Chew C H creator Teo K H text xx Malaysian Forester 1976 9999 monographic und

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73-78 Vanillin, syringaldehyde, acetovanillone and p-hydroxybenzaldehyde were identified in the reaction products of rubber woodmeal oxidized by alkaline nitrobenzene. The low yields of vanillin and syringaldehyde from the rubber woodmeal appear to indicate that the linkages in the rubberwood lignin were more resistant to the alkaline oxidation than other hardwoods. Rubber woodmeal 220216