Bafuputsi ba fumane li-enzyme tse peli matheng a liboko tseo ka tlhaho li pshatlang polasetiki e tloaelehileng ka lihora tse ngata mochesong oa kamore.
Polyethylene ke e 'ngoe ea lipolasetiki tse sebelisoang ka ho fetisisa lefatšeng, e sebelisoa nthong e' ngoe le e 'ngoe ho tloha ka lijana tsa lijo ho ea ho mekotla ea mabenkele.Ka bomalimabe, ho tiea ha eona ho boetse ho etsa hore e be litšila tse tsitsitseng-polymer e tlameha ho sebetsoa ka mocheso o phahameng ho qala ts'ebetso ea ho senya.
Mathe a Waxworm a na le enzyme e le 'ngoe feela e tsejoang hore e sebetsa ho polyethylene e sa sebetsoang, e etsang hore liprotheine tsena tsa tlhaho li be molemo haholo bakeng sa ho sebelisoa hape.
Setsebi sa baeloji ea limolek'hule le molemi oa linotsi ea sa tloaelehang Federica Bertocchini o ile a sibolla ka phoso bokhoni ba liboko tsa boka ho theola polasetiki lilemong tse 'maloa tse fetileng.
"Qetellong ea nako ea selemo, balemi ba linotsi ba atisa ho beha li-hives tse se nang letho hore ba khutlele tšimong nakong ea selemo," Bertocchini o sa tsoa bolella AFP.
O ile a hloekisa ntloana eaba o kenya liboko tsohle tsa boka ka mekotleng ea polasetiki.Ha a khutla ka mor'a nakoana, o ile a fumana hore mokotla o "lutse".
Li-waxwings ( Galleria mellonella ) ke li-larvae tse fetohang li-wax moths tsa nako e khutšoanyane ha nako e ntse e ea.Ha li le mothating oa larval, liboko li lula ka har'a hive, li ja boka ba boka ba linotsi le peo e phofo.
Ka mor'a tšibollo ena e thabisang, Bertocchini le sehlopha sa hae Setsing sa Lipatlisiso tsa Biological Margherita Salas Madrid ba ile ba qala ho hlahloba mathe a boka ba boka 'me ba phatlalatsa liphello tsa bona ho Nature Communications.
Bafuputsi ba sebelisitse mekhoa e 'meli: gel permeation chromatography, e arolang limolek'hule ho latela boholo ba tsona, le spectrometry ea khase ea chromatography-mass spectrometry, e khethollang likaroloana tsa limolek'hule ho latela karo-karolelano ea boima ba tsona ho ea ho tefiso.
Ba netefalitse hore mathe a pshatla liketane tse telele tsa hydrocarbon tsa polyethylene hore e be liketane tse nyane tse nang le oxidized.
Ka mor'a moo ba ile ba sebelisa tlhahlobo ea proteomic ho khetholla "li-enzyme tse seng kae" ka mathe, tse peli tsa tsona li bontšitsoe hore li na le oxidize polyethylene, bafuputsi ba ngola.
Bafuputsi ba ile ba reha li-enzyme "Demeter" le "Ceres" ka mor'a melimotsana ea khale ea temo ea Bagerike le Baroma, ka ho latellana.
"Ho ea ka tsebo ea rona, li-polyvinylases tsena ke li-enzyme tsa pele tse khonang ho etsa liphetoho tse joalo lifiliming tsa polyethylene mocheso oa kamore ka nako e khutšoanyane," bafuputsi ba ngola.
Ba ile ba phaella ka hore hobane li-enzyme tse peli li hlōla "mohato oa pele le o thata ka ho fetisisa ts'ebetsong ea ho senyeha," mokhoa ona o ka emela "paradigm e 'ngoe" bakeng sa tsamaiso ea litšila.
Bertocchini o bolelletse AFP hore le ha lipatlisiso li sa le qalong, li-enzyme li kanna tsa tsoakoa le metsi 'me tsa tšeloa holim'a polasetiki libakeng tse nchafatsoang.Li ka sebelisoa libakeng tse ka thōko ntle le likotopo tsa lithōle kapa esita le malapeng ka bomong.
Likokoana-hloko le libaktheria tse leoatleng le mobung li ntse li iphepa ka polasetiki, ho latela boithuto ba 2021.
Ka 2016, bafuputsi ba tlalehile hore baktheria e fumanoe sebakeng sa polokelo ea lithōle Japane e senyang polyethylene terephthalate (eo hape e tsejoang e le PET kapa polyester).Hamorao sena se ile sa susumetsa bo-rasaense ho etsa enzyme e ka pshatlang libotlolo tsa seno sa polasetiki kapele.
Hoo e ka bang lithane tse limilione tse 400 tsa litšila tsa polasetiki li hlahisoa selemo le selemo lefatšeng, hoo e ka bang 30% ea tsona ke polyethylene.Ke 10% feela ea lithane tse limilione tse likete tse 7 tsa litšila tse hlahisoang lefatšeng ho fihlela joale, tse siileng litšila tse ngata lefatšeng.
Ho fokotsa le ho sebelisa thepa hape ha ho pelaelo hore ho tla fokotsa tšusumetso ea litšila tsa polasetiki tikolohong, empa ho ba le sesebelisoa sa ho hloekisa bohlasoa ho ka re thusa ho rarolla bothata ba litšila tsa polasetiki.
Nako ea poso: Aug-07-2023
