sorbic acid Exceptional Colour- By applying advanced technology and proper procedures specially for the production of sorlbic acid and potassium sorbate, our products appear pure white and enjoy good stability of color, which are quite different from those with a bit yellow and poor stability of color made by traditional way of processing at present. Quality- It meets GB 1905-2000, GB 13736-92 set by China , FCCIV set by USA and E200/E202 set by the EU.