WiththeexpansionofboththecaneandbeetsugarindustriesinChina,thecolourofwhitesugarproducedinthetraditionalChinesefactoryhasincreasedandbecomeacriticalproblem.Thecolourofsugarfromsulphitationistypically150ICUMSAColourUnits(IU).Valuesofupto200IUormorearenotun...[繼續(xù)閱讀]