Acorn starch resources is abundant in China. Whereas, by for now, the studies on physicochemical and functional characteristics of acorn starch have not been reported. In this paper, twelve species of acorns besides Castanea henryi were taken as experimental materials. Some ordinary physicochemical analytical methods, orthogonal experiment, micrography, X-ray diffraction examination and 1-butnol recrystallization were used. The starch in acorn kernel was measured, extracted and bleached. Amylose and amylope...