White Sugar vs Raw Sugar
Qhov txawv ntawm cov piam thaj dawb thiab cov qab zib nyoos yog los ntawm cov txheej txheem tsim khoom ntawm txhua tus. Tab sis, txawm tias ua ntej paub qhov txawv, qee tus ntawm koj tuaj yeem nug "dab tsi yog qab zib nyoos?" Nws yog vim hais tias txawm tias qab zib yog ib qho tseem ceeb tshaj plaws thiab feem ntau siv cov khoom hauv chav ua noj, cov neeg feem coob tsis paub txog qhov tseeb tias sib nrug ntawm cov qab zib dawb uas lawv siv, muaj lwm yam qab zib hauv khw. Cov suab thaj no hu ua raw qab zib. Txawm tias cov neeg paub thiab siv cov suab thaj nyoos tsis paub meej txog qhov sib txawv ntawm cov piam thaj dawb thiab cov qab zib nyoos. Cia peb ua tib zoo saib ob hom suab thaj no.
Raw Sugar yog dab tsi?
Yuav kom nkag siab tias qab zib nyoos yog dab tsi, koj yuav tsum xub pom tias nws tsim tawm li cas. Cov cav tov yog siv los nias thiab zom cov nroj tsuag qab zib kom tshem tawm cov kua txiv hmab txiv ntoo. Txiv qaub yog ntxiv rau cov kua txiv hmab txiv ntoo no kom ncav cuag qib pH thiab tshem tawm cov impurities uas muaj nyob hauv cov kua txiv hmab txiv ntoo. Kev txo cov tshuaj no los ntawm evaporation ua rau cov khoom loj uas tau dhau los ntawm centrifuge kom tau cov kua qab zib. Cov suab thaj no yog lub teeb xim av xim thiab hu ua cov suab thaj nyoos. Qhov no kuj yog lub ntuj qab zib tshaj plaws uas koj tuaj yeem cia siab tias yuav tso koj txhais tes. Cov qab zib nyoos muaj txiaj ntsig zoo rau kev noj qab haus huv vim tias nws tsis muaj ntau yam tshuaj xws li lwm hom qab zib.
Qab Zib Dawb yog dab tsi?
Cov piam thaj dawb lossis cov suab thaj qab zib raws li nws hu ua yog ntshiab sucrose uas yog ib qho ntawm cov carbohydrates thiab muaj nyob hauv ntau cov txiv hmab txiv ntoo thiab zaub. Hauv qhov xwm txheej, nws pom muaj ntau tshaj plaws hauv cov nroj tsuag qab zib thiab beets los ntawm kev sib cais los hloov mus rau hauv daim ntawv uas peb siv. Cov piam thaj dawb yog cov qab zib ua kom zoo uas tau npaj los ntawm cov suab thaj, lossis cov qab zib nyoos raws li nws raug xa mus.
Ua kom cov suab thaj dawb, sulfur dioxide ntxiv rau cov kua txiv hmab txiv ntoo ua ntej nws tau evaporated. Cov roj no ua cov kua txiv hmab txiv ntoo kom tsis txhob tig xim av thiab tsim cov suab thaj dawb. Nyob rau theem tom ntej, phosphoric acid, calcium hydroxide lossis carbon dioxide ntxiv rau nqus cov impurities. Cov kua txiv no yog lim los ntawm lub txaj ntawm carbon thiab ces crystallized nyob rau hauv lub tshuab nqus tsev ntau zaus. Thaum kawg, cov muaju tso tseg kom qhuav ntawm lawv tus kheej kom tau daim ntawv dawb crystals ntawm qab zib.
Dab tsi yog qhov txawv ntawm Dawb Qab Zib thiab Raw Qab Zib?
• Tam sim no peb paub cov txheej txheem tsim khoom ntawm ob qho tib si raw qab zib thiab qab zib dawb, nws tau paub meej tias thaum cov piam thaj nyoos yog ntuj, muaj ntau cov additives, acids, thiab preservatives ntxiv los ua cov qab zib dawb.
• Vim muaj cov molasses hauv cov qab zib nyoos, nws muaj qhov txawv txav uas ploj lawm hauv qab zib dawb.
• Calorific nqi ntawm cov qab zib nyoos tsuas yog 11kcal ib teaspoon whereas nws yog ntau dua (16kcal) nyob rau hauv cov ntaub ntawv ntawm qab zib dawb.
• Los ntawm ob, cov qab zib nyoos yog cov phooj ywg zoo ib puag ncig vim nws dhau los ntawm cov txheej txheem tsim khoom ntev dua li cov qab zib dawb. Yog li ntawd, nws tsis tsim cov khoom pov tseg, siv lub zog, lossis yuav tsum tso cov tshuaj ntau npaum li cov piam thaj dawb.
• Thaum nws los saj, cov qab zib nyoos tsis saj qab zib li qab zib dawb vim nws muaj molasses.
• cov piam thaj dawb los yog cov piam thaj ib txwm muaj los ntawm cov khoom siv lead ua me dua li cov qab zib nyoos.
• Vim qhov loj ntawm cov piam thaj muaju ntawm cov suab thaj nyoos, nws tuaj yeem tsim qee yam teeb meem thaum siv ua noj. Piv txwv li, nrog qhov loj me me ntawm cov suab thaj nyoos qee zaum sib xyaw nrog lwm cov khoom xyaw tuaj yeem nyuaj. Txhawm rau zam qhov xwm txheej zoo li no, koj yuav tsum zom cov suab thaj nyoos siv cov khoom noj processor yog tias koj npaj yuav siv nws hauv kev ua noj. Cov teeb meem zoo li no tsis tau ntsib nrog thaum siv cov piam thaj dawb vim lawv tuaj hauv cov pob zeb me me uas yooj yim rau yaj.
• Txawm hais tias nws tsis muaj qhov saj ntawm cov suab thaj dawb, cov suab thaj nyoos yog qhov kev xaiv zoo dua rau kev noj qab haus huv vim nws tsis muaj tshuaj lom neeg li qab zib dawb.
Txawm li cas los xij, thaum kawg, nws yog qhov koj xaiv uas yuav xaiv ib qho ntawm ob. Yog li, xaiv qhov uas haum rau koj thiab koj txoj kev noj qab haus huv.
