Calcium transport and phytate hydrolysis during chemical hardening of common bean seeds

•Red kidney beans were hardened by in CaCl2 or sodium acetate buffer.•Beans treated by CaCl2 with higher concentrations showed higher residual hardness.•IP6 hydrolyzed in beans during soaking in acetate buffer.•Texture hardened with increased IP6 hydrolysis in beans in sodium acetate buffer.•Changes of degree of methylesterification of pectin in cotyledons were limited.