Cov kws tshawb fawb tau pom ob lub enzymes hauv cov qaub ncaug ntawm cov kab mob waxworms uas ib txwm ua rau cov yas zoo tib yam tsis pub dhau ib teev ntawm chav tsev kub.
Polyethylene yog ib qho ntawm cov yas siv ntau tshaj plaws hauv ntiaj teb, tau siv txhua yam los ntawm cov thawv ntim khoom noj mus rau lub hnab ntim khoom.Hmoov tsis zoo, nws cov tawv tawv kuj ua rau nws muaj kuab paug tsis tu ncua - cov polymer yuav tsum tau ua tiav ntawm qhov kub siab los pib cov txheej txheem degradation.
Waxworm qaub ncaug muaj cov enzyme nkaus xwb uas paub tias ua rau cov polyethylene uas tsis tau ua tiav, ua rau cov proteins uas tshwm sim los ua rau muaj txiaj ntsig zoo rau kev rov ua dua tshiab.
Molecular biologist thiab amateur beekeeper Federica Bertocchini nrhiav tau lub peev xwm ntawm wax worms degrade yas ob peb xyoos dhau los.
Bertocchini tsis ntev los no hais rau AFP tias "Thaum kawg ntawm lub caij, beekeepers feem ntau tso ob peb qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khawm
Nws ntxuav lub Hive thiab muab tag nrho cov wax worms tso rau hauv hnab yas.Rov qab los tom qab ib ntus, nws pom tias lub hnab yog "xov".
Waxwings (Galleria mellonella) yog cov larvae uas tig mus rau cov npauj luv luv nyob rau lub sijhawm.Thaum lub sij hawm larval, cov worms nyob rau hauv lub Hive, pub rau beeswax thiab paj ntoos.
Tom qab qhov kev pom zoo siab no, Bertocchini thiab nws pab neeg ntawm Lub Chaw rau Kev Tshawb Fawb Txog Kev Tshawb Fawb Txog Biological Margherita Salas hauv Madrid tau teeb tsa txog kev tshuaj xyuas cov kua qaub waxworm thiab luam tawm lawv cov txiaj ntsig hauv Nature Communications.
Cov kws tshawb fawb tau siv ob txoj hauv kev: gel permeation chromatography, uas cais cov molecules raws li lawv qhov loj me, thiab cov roj chromatography-mass spectrometry, uas txheeb xyuas cov khoom tawg yooj yim raws li lawv qhov loj-rau-them piv.
Lawv tau lees paub tias cov qaub ncaug ua rau cov kab mob ntev hydrocarbon ntawm polyethylene rau hauv cov saw hlau me me, oxidized.
Tom qab ntawd lawv tau siv cov tshuaj tiv thaiv proteomic los txheeb xyuas "pleev ntawm cov enzymes" hauv cov qaub ncaug, ob qho uas tau pom tias oxidize polyethylene, cov kws tshawb fawb sau.
Cov kws tshawb fawb tau hu ua enzymes "Demeter" thiab "Ceres" tom qab Greek thiab Roman vajtswv poj niam ntawm kev ua liaj ua teb, feem.
"Rau peb qhov kev paub, cov polyvinylase no yog thawj cov enzymes uas muaj peev xwm ua tau zoo li kev hloov kho rau polyethylene zaj duab xis ntawm chav tsev kub hauv lub sijhawm luv luv," cov kws tshawb fawb sau.
Lawv hais ntxiv tias vim tias ob lub enzymes kov yeej "thawj kauj ruam thiab nyuaj tshaj plaws hauv cov txheej txheem degradation," tus txheej txheem tuaj yeem sawv cev rau "kev hloov pauv" rau kev tswj cov khib nyiab.
Bertocchini hais rau AFP tias thaum qhov kev tshawb nrhiav yog nyob rau theem pib, cov enzymes yuav tau tov nrog dej thiab nchuav rau hauv cov yas ntawm cov chaw rov ua dua tshiab.Lawv tuaj yeem siv rau hauv thaj chaw deb tsis muaj cov khib nyiab lossis txawm nyob hauv tsev neeg.
Cov kab mob microbes thiab kab mob hauv dej hiav txwv thiab av tau hloov zuj zus los noj cov yas, raws li kev tshawb fawb xyoo 2021.
Xyoo 2016, cov kws tshawb fawb tau tshaj tawm tias cov kab mob tau pom nyob rau hauv qhov chaw pov tseg hauv Nyij Pooj uas rhuav tshem polyethylene terephthalate (tseem hu ua PET lossis polyester).Qhov no tom qab ntawd tau tshoov cov kws tshawb fawb los tsim cov enzyme uas tuaj yeem tawg sai sai hauv lub raj mis dej haus.
Kwv yees li 400 lab tons ntawm cov pov tseg yas yog tsim txhua xyoo nyob rau hauv lub ntiaj teb, li ntawm 30% ntawm uas yog polyethylene.Tsuas yog 10% ntawm 7 billion tons ntawm cov pov tseg tsim nyob hauv lub ntiaj teb tau rov ua dua los txog tam sim no, tawm ntau cov pov tseg hauv ntiaj teb.
Kev txo qis thiab rov siv cov ntaub ntawv yuav tsis muaj kev poob siab txo qhov cuam tshuam ntawm cov pov tseg yas rau ib puag ncig, tab sis muaj cov cuab yeej ntxuav cov khoom siv sib tsoo tuaj yeem pab peb daws cov teeb meem ntawm cov khib nyiab yas.
Post lub sij hawm: Aug-07-2023
