Tau muaj kev sib cav ntau txog cov txiaj ntsig thiab txiaj ntsig ntawm npias lately. Qhov no yog ib txwm haus dej cawv thiab muaj ib feem tseem ceeb ntawm haus dej cawv, uas muaj yees. Ntxiv rau, nws yog npias hloov pauv cov tshuaj hormones hauv tib neeg lub cev, ua cov estrogens.
Npias yog tej zaum qhov nrov tshaj plaws haus cawv qis. Muaj cov kev ntaus nqi tseem ceeb ntawm cov tebchaws uas haus cov dej haus no ntau hauv ib xyoos.
Lub npias dej cawv yog tsim los ntawm cov hauv qab no:
- dej, - carbohydrates, - carbon dioxide, - poov xab, - ethyl haus cawv thiab cov tshuaj muaj nitrogen.
Yog lawm, cov no tsuas yog cov khoom xyaw tseem ceeb, tab sis muaj ntau tshaj 1000 zaub mov txawv zaub mov txawv, muaj ntau cov sib txuas thiab cov quav ntxiv.
Ntuj haus
Txij li lub sijhawm puag thaum ub, raws li European kev lig kev cai, lub hauv paus rau npias yog barley, tab sis tam sim no npias yog brewed ntawm lwm cov neeg sawv cev ntawm cov cereals, piv txwv li, xws li mov lossis pob kws. Muaj txawm tias txiv tsawb thiab mis npias, tab sis cov no yog cov dej haus tshwj xeeb ntau hauv qhov xav tau tsawg.
Xws li lub cev haus dej haus cawv raws li npias tau txais los ntawm kev kho lub cev ntawm cov khoom cog hauv daim ntawv ntawm hops, malt, brewer cov poov xab, tau kawg, nrog ntxiv cov dej. Tag nrho cov kev tivthaiv no ua rau muaj kev tawm tsam tshuaj lom neeg. Nws yuav tsum raug sau tseg tias tshuaj ntsuab - hops - yog siv tsis tsuas yog rau npias npias, tab sis kuj tseem siv rau ci ncuav.
Ntxiv rau cov khoom siv tseem ceeb, cov ntsiab lus hauv qab no yog suav nrog cov npias me me ua npias:
- cov ntsev ntawm organic acids, - cov ntxhia pob zeb ua ke thiab cov vitamins ntawm malt, uas zoo kawg nkaus ua rau assimilation ntawm cov khoom, - estrogens, uas nyeg cuam tshuam rau keeb kwm ntawm keeb kwm ntawm tus neeg.
Pab tau thiab tsis heev
Nitrogen tebchaw hauv npias yog qhov tsim nyog rau nws tag nrho tsw, tsim ua npuas dej thiab lwm yam txheej txheem ntawm lub cev thiab tshuaj lom neeg. Tab sis qhov muaj oxygen nyob rau hauv npias yuav cuam tshuam tsis zoo rau nws txoj kev ruaj khov, yog li nws cov ntsiab lus hauv npias yuav tsum muaj tsawg, txog 0.35 milligrams ib liter ntawm npias, ntau npaum li cas cov pa tso tawm raws li qhov tshwm sim yog ua tib zoo saib xyuas los ntawm cov kws kho.
Yog hais tias muaj kev tshaj ntawm cov pa, npias yuav lwj sai heev.
Cov khoom tseem ceeb hauv npias raug suav tias yog cov phenolic tebchaw, ua tsaug uas lub cev tau txais cov tshuaj antioxidant, nrog rau cov khoom sib txuas no pab tiv thaiv kev tsim cov ntshav txhaws, thiab muaj cov nyhuv bactericidal. Thiab cov yam ntxwv ntawm kev ua npias ntawm cov poov xab txawm siv los ntawm cov kws kho mob, uas ntseeg tias lawv du tawm pob ntxau thiab pab tua pob txuv. Ib qho ntxiv, nws raug nquahu kom yaug cov plaub hau nrog brewer cov poov xab kom nws hlob zoo thiab muaj lub hauv paus ruaj khov.
