Cov txiv pos nphuab qhuav qhuav, zoo li cov txiv pos nphuab tshiab, yog cov kua qaub me ntsis. Lub acidity nyob rau hauv strawberries feem ntau yog vim muaj cov organic acids, nrog citric acid yog ntau tshaj. Cov kua qaub no ua rau cov yam ntxwv tartness ntawm strawberries thiab ua lub luag haujlwm tseem ceeb hauv lawv qhov profile. Thaum khov-drying hloov qhov kev ntxhib los mos thiab cov ntsiab lus noo ntawm strawberries, nws feem ntau tsis hloov lawv cov acidity.
Thaum cov txiv pos nphuab yog khov-qhuav, lawv dhau los ua cov txheej txheem uas tshem tawm feem ntau ntawm lawv cov dej noo thaum khaws lawv cov tsw, aroma, thiab cov khoom noj khoom haus. Cov txheej txheem no suav nrog kev khov cov txiv pos nphuab thiab tom qab ntawd muab tso rau hauv lub tshuab nqus tsev, ua rau cov dej hauv cov txiv hmab txiv ntoo mus rau sublimate (hloov ncaj qha los ntawm cov khoom rau cov roj) ntawm qhov kub thiab txias. Qhov no ua rau tshem tawm li ntawm 98% ntawm cov ntsiab lus dej, tawm hauv qab lub teeb yuag, crispy, thiab cov khoom txee ruaj khov.
Cov txheej txheem khov-drying, los ntawm thiab loj, tsis hloov cov tshuaj muaj pes tsawg leeg ntawm cov txiv hmab txiv ntoo, nrog rau nws cov acidity. Citric acid, uas yog thawj cov kua qaub uas muaj nyob rau hauv strawberries, yog qhov ruaj khov nyob rau hauv cov xwm txheej no thiab khaws nws cov acidity. Yog li ntawd, khov-qhuav strawberries tuav lawv cov tartness thiab acidic saj, uas yuav ua tau ib tug ntshaw attribute rau ntau daim ntawv thov ua noj.
Cov theem ntawm acidity nyob rau hauv khov-qhuav strawberries tuaj yeem sib txawv me ntsis nyob ntawm seb muaj ntau yam xws li strawberry ntau yam, ripeness ntawm sau, thiab cov txheej txheem khov-qhuav siv. Txawm li cas los xij, feem ntau, khov-qhuav cov txiv pos nphuab tseem tshuav me ntsis acidic, nrog rau qib pH feem ntau yog li ntawm 3.0 txog 3.5, uas yog tib yam li cov txiv pos nphuab tshiab.
Qhov no acidity yog ib qho ntawm cov laj thawj vim li caskhov-qhuav strawberriesyog cov khoom muaj npe nrov hauv ntau yam khoom noj, xws li cov zaub mov noj tshais, khoom noj txom ncauj sib tov, ci zaub mov, thiab txawm tias yog topping rau cov khoom qab zib xws li yogurt lossis ice cream. Lub tartness ntawm khov-qhuav strawberries tuaj yeem muab qhov zoo sib xws rau cov khoom qab zib hauv cov zaub mov, ua rau lawv muaj ntau yam thiab flavorful ntxiv rau ntau cov tais diav.
