Chocolate_presentation(非常详尽英文课堂演讲)

ChocolateByMinty＆SharonDescriptionofChocolateChocolateismadefromcocoabeansfoundonthecacaotree.•ThecacaotreewasfirstdiscoveredintheSouthAmericanrainforest.Thethreemainingredientsinchocolatearechocolateliquor,cocoapowder,andcocoabutter.Differentkindsofchocolateusevaryingamountsofthese3ingredients.PictureoftheCacaoTreeHistoryofChocolateDatesbacktoabout1,500yearsago.FirstfoundinMayanandAztecCivilizations.•Mayansusedcacaobeanstocreateacold,unsweetened,spicychocolatebeverage.Thiswasthefirstformofchocolate.•Aztecscameacrosscacaobeansthroughtrade.Theynamedthespicydrinkxocolatl(bitterwater).•CacaobeansplayedimportantrolesinbothMayanandAztecCivilizations.•ThechocolatedrinkwasfirstbroughttoEuropebySpanishconquistador,HernanCortes.–ThedrinkwassweetenedtomatchEuropeantastes.–ThedrinkspreadfromSpanishcourtstootherEuropeancourts.–Thedrinkwasalsoprescribedtopeoplefordepressionandusedinloveanddeathpotions.•Inthelate18thcenturyFrenchandDutchprocessorsexperimentedwithchocolateliquid.–Thisleadtotheproductionofchocolatepowder,whichthenledtotheproductionofthefirstsolidchocolate.–ThefirstsolidchocolatewasbelievedtohavebeensoldinEnglandinthemid-1800s.Chocolateasweknowittodaywaslargelymadepossiblebythreeevents——•In1828,DutchchemistJohannesVanHouten,inventedamethodofextractingthefatorcocoabutterfromgroundcocoabeans.Theresulting'cocoa'powderwasmuchlessbittertastingand,whencombinedwithsugarorhoney,madeadrinkmuchmorepalatabletoourtaste.•ThisprocessknownastheVanHoutenprocessmadeitpossibleforFry&SonsofBristol,Englandtomanufactureandsellthefirstsolidchocolatebarin1847.•In1875aSwissmanufacturer,DanielPetersalsousedtheVanHoutenprocesstosuccessfullycombinechocolatewithpowderedmilktoproducethefirstmilkchocolate.TypesofChocolateSweetChocolate•Containsnomilksolids•Cannotcontainlessthan15%chocolateliquorDarkBittersweetChocolate•Containsthemostchocolateliquor.•Itissweetchocolatethatcannotcontainlessthan35%chocolateliquor.SemiSweetChocolate•Similartodarkbittersweetchocolate.BakingChocolate•Containsnosweetenersandnomilk.TypesofChocolateMilkChocolate•Containsmilkandsugar,whichdiffersfrombittersweetandsemisweetchocolate.•Cannotcontainlessthan12%milkandcannotcontainlessthan10%chocolateliquor.•Cancontainotheringredientsbutmustcomply(遵守)withregulations.WhiteChocolate•Technicallynotrealchocolate•Containsnochocolateliquor,whichisoneofthemainingredientsinchocolate.•It’smadeofcocoabutter,milk,andsugar.DarkChocolateWhiteChocolateMilkChocolateNutChocolateSpearmintChocolateLiqueurChocolateCartoonChocolateMixMixChocolateHome-madeChocolateHowChocolateisMade•Cocoapods（可可豆荚）areharvested•Podsarecrushed（压碎）andfermented（发酵）.•Cocoabeansaretakenoutofthepodsandthendried.•Beansareroasted,graded,andthenground.•Grinding（磨碎）thebeanscreatesaliquidcalledchocolateliquor.–Chocolateliquor-mademostlyoffatcalledcocoabutter.•Cocoabutterisextracted（萃取）.•Cocoapowderisalsocreatedwhenbeansareground.•Theprocesscreateschocolateliquor,cocoapowder,andcocoabutter.•Ingredientsareblended(混合)backtogethertocreatedifferentkindsofchocolates.PotentialHealthBenefitsChocolatemaybegoodfortheheart.Chocolatecontainschemicalslikethosefoundinredwineandgreentea.HelpsimprovecirculationHelpscutdownbloodpressureChocolatecontainsflavanols.(黄烷醇)Helpsinpreventingtheoxidations(氧化)of“bad”cholesterol(胆固醇),whichreducesthestickinessofbloodplatelets(血小板)andimprovebloodvessel(血管)elasticity(弹性).Theobromine,foundinchocolate,wasfoundtotreatcoughsbetterthancodeine.ChocolateFactsChocolateConsumption:•Americansconsumeover3.1billionpoundsofchocolateeveryyear,whichisabout11.7poundsperperson.•MilkChocolateisthemostpopularamongAmericans,followedbydarkchocolateandthenwhitechocolate.Chocolateisconsideredamoodfood.•ContainsanaminoacidcalledL-tryptophan.Thisincreasesserotonininthebrain,whichisacalminghormone.•Saidtobenature’sown“antidepressant.”ChocolateMythsandTruthsMyth:Causesacne.Myth:Highincholesterol.Myth:Causestoothdecay.Myth:Highincaffeine.Myth:Causesweightgain.Myth:Isaddictive.Truth:Studiesfoundnoconnectionbetweeneatingchocolateandacne.Truth:Chocolateislowincholesterolandlowinanimalfat.Truth:Studiesfoundthattoothdecayisnotasbigofaproblemasoncethought.Toothdecayismostlycausedbypoorhygiene.Truth:Chocolateisnothighincaffeineandcontainslesscaffeinethancoffee.Truth:Wheneateninmoderation,chocolatedoesnotcauseweightgain.Truth:Peoplewhosaytheyareaddictedarejustexperiencingstrongcravings.Thecharacteristicsofanaddictionsuchastoleranceandwithdrawalandchemicalchangesinthebrainarenotassociatedwitheatingchocolate.•Valentine'sDay,couplesaregivingthechocolateandblessinglovewillbeassweetaschocolate.Brands..•Dove德芙•Leconte金帝•FerreroRocher费列罗•MEIJI明治•SwissThins瑞士莲•Cadbury吉百利•M&M’s弗瑞斯特玛氏•Hershey’s好时Lifeislikeaboxofchocolates,Youneverknowwhatyou’regonnaget.•Differentkindsofchocolatehavedifferentmeanings.Darkchocolatestandsfordependent.Atrueloveneedsdependentoneachother.Milkchocolatemeanscherish.Astheloveofprinceandprincess,fulfillofhappinessandlove.Whitechocolateoftenbeviewedaspure.Themostpurelove,withfullofjoyandnohurt.Choc