The corn starch was modified into oxidized starch containing both carboxyl and aldehyde groups by chemical method, which provided a new clean tanning agent for leather industry.

• 利用两步氧化法,首次将玉米淀粉改性为同时含羧基和醛基的氧化淀粉,为制革工业提供了一种新型的清洁化鞣剂。