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1、WhyfoodadditivesareimportantIntroductionInrecentyears,foodadditiveshavebecomeanessentialthinginfoodproduction.Foodproducersaddsomechemicalproductsintofoodduringtheprocessoffoodproductioninordertoimprovethefoodqualityintincture,odourandflavour.Inaddition,theyuse
2、foodadditivestostorefoodforalongperiodoftime.However,somecancerscanbecausedbyfoodadditives.Forexample,manymeatshavesomeadditivesaddedwhichwillinteractwithgastricacidandprotein.(USDA,2008)Therefore,alargeamountofnitriteswhichcanleadtochronicphysiologicaldisorder
3、willbeproduced.Thisprojectwillfirstexpoundthedefinitionoffoodadditives,andthendiscusstheadvantagesanddisadvantagesofthem.Itwillfinallygoontointroducetwofamiliarcategoriesoffoodadditivesinordertoshowwhytheyareimportant.Whatarethefoodadditives?Foodadditivesarethe
4、substanceaddedtofoodinordertochangethefeaturesoffood,suchastheappearance,flavourandthestoragelife.Someofthesearecollectedfromnaturallymaterials;othersareproducedthroughthechemicalindustry.However,thesameaseveryotherconstituentoffood,allofthefoodadditivesarechem
5、icals.(Emsley,J,2011)Theuseoffoodadditiveshasbecomemoreextensiveinrecentyears,becausetheproductionsofpreparedprocessed,andconveniencefoodshaveincreasedrapidly.Atthesametime,therearemanyquestionsraisedbyconsumersandscientistsabouttheimportanceandthenecessityoffo
6、odadditives.Atpresent,thereare23categoriesandmorethan2,000kindsoffoodadditivesinChina,includeacidityregulator,Anti-cakingagent,defoamingagent,antioxidant,bleachingagents,bulkingagent,colorant,colourfixative,enzymePreparation,flavourenhancer,nutritionenhancer,pr
7、eservative,sweetener,thickener,fragranceandsomeothercategories.Whataretheadvantagesoffoodadditives?Foodadditiveshavewidelypromotedfoodindustryandtheyhavealsobeenhailedasthesouloffoodindustry.Themainreasonisthattheybringmanybenefitstofoodproduction.Moreover,food
8、additivesexecuteanumberoffunctionsinfood.Asmostpeoplehavenolongerliveonfarms,additivescanhelpthemtokeepthenutritionandtheappearanceoffoodwhiletheyareexportedtootherplaceswhi
