Qhov tseeb, cawv qhuav tsis yog los rau dej cawv txhua. Cov tshuaj no hu ua qhuav roj lossis urotropine. Nws yog muag dawb hauv ib qho chaw yos hav zoov hauv cov ntawv me me ntawm tus nqi tsawg.
Keeb kwm ntawm cov tsos ntawm cov cawv qhuav
Cov cawv qhuav tau thawj zaug tau los ntawm cov kws tshaj lij Lavxias teb sab tshuaj A. M. Butlerov, uas synthesized ntau tshaj ib tug kaum os tseem ceeb cov organic sib txuas. Cov tshuaj no yog sib xyaw ntawm urotropin nrog ib qho me me ntawm paraffin. Tus kws tshawb fawb tau nws hauv 1859 los ntawm kev sib cuam tshuam ntawm formaldehyde nrog kev daws teeb meem ntawm ammonia. Vim li cas lub npe "qhuav cawv" tau ntes rau kom zoo? Qhov yog tias urotropine, thaum hlawv, tsis ua pa taws, pa taws thiab soot. Hauv txoj kev no, nws zoo sib xws rau ethyl cawv.
Txog xyoo 2010, urotropine tau siv nyob rau hauv Russia ua zaub mov noj ntxiv (E239) rau kev tsim khoom noj ntawm caviar thiab lwm yam khoom lag luam ntses. Nws nce ntau lub txee lub neej ntawm cov zaub mov lwj. Cov kev tshawb fawb los ntawm cov kws tshawb fawb tau qhia tias urotropine, thaum sib cuam tshuam nrog cov kua qaub, tsim cov phom sij formaldehyde, uas tuaj yeem ua rau mob qog nqaij hlav. Nws tau txwv tsis pub siv rau hauv kev lag luam khoom noj khoom haus, txawm li ntawd los, cov tuam txhab tsis ncaj yeej tseem ntxiv nws rau lawv cov khoom. Ua ntej yuav mov caviar lossis cov ntses kaus poom, nco ntsoov xyuas cov muaj pes tsawg leeg.
Thov
Niaj hnub no, urotropine tsuas yog siv rau kev tsim cov roj av qhuav. Nws muaj ntau qhov zoo, uas ua rau nws nrov ntawm cov kiv cua ntawm kev yos hav zoov thiab tsuas yog kev ua si sab nraum zoov. Cov cawv qhuav qhuav tau zoo thiab hlawv ntev mus ntev. Ib ntsiav tshuaj muaj peev xwm tswj cov nplaim hluav taws kom ruaj khov kom ntev txog 15 feeb.
Cov dej cawv hauv lub cev yog qhov tshwj xeeb tshaj yog nyob rau hauv cov chaw uas tsis tuaj yeem txais cov roj: roob, kem, chaw muaj pob zeb. Nws tuaj yeem tiv taus yooj yim txawm hais tias thaum los nag. Qhov no yog siv los ntawm cov tub rog nyob tom teb. Nws tsis yog rau qhov tsis muaj dab tsi uas txhua tus tub rog muab nrog cov cawv qhuav. Nws raug taws rau ntawm cov rooj hlau me me.
Tus nqi ntawm cov roj no tseem tsawg (li 25 rubles rau ib pob). Nws tawm hauv cov ntsiav tshuaj me me uas coj mus qhov chaw me me hauv koj lub hnab ev ntawv thiab koj tuaj yeem coj lawv nrog koj ntawm kev mus kev.
Qhov khuam
Qhov tsis zoo ntawm cov cawv qhuav muaj xws li nplaim taws heev. Nws tsis txaus ua noj ua haus, tab sis nws txaus kom sov tshuaj yej. Nws yog qhov zoo dua los siv lub taub roj rau kev ua noj. Cov nplaim hluav taws yog rhiab heev rau cua, muaj zog khov kho tau yooj yim tua nws. Dej cawv quav tsw tsw ntxhiab heev. Yog tias nws tau ntub, nws tam sim ntawd pib tua cov txim taws. Txawm hais tias txhua qhov tsis sib haum xeeb, cov roj av qhuav tau muaj koob meej ntawm cov neeg nyiam kev taug kev.
