Ndị nchọpụta achọpụtala enzymes abụọ n'ime mmiri nke waxworms nke na-akụda plastik nkịtị n'ime awa ole na ole n'ime ụlọ okpomọkụ.
Polyethylene bụ otu n'ime plastik ndị a na-ejikarị eme ihe n'ụwa, a na-eji ya eme ihe niile site na arịa nri ruo na akpa ịzụ ahịa.N'ụzọ dị mwute, ike ya na-emekwa ka ọ bụrụ ihe mmetọ na-adịgide adịgide - a ghaghị ịhazi polymer na okpomọkụ dị elu iji malite usoro mmebi ahụ.
Mmiri waxworm nwere nanị enzyme a maara na ọ na-arụ ọrụ na polyethylene na-adịghị edozi ya, na-eme ka protein ndị a na-emekarị nwere ike ịba uru maka ịmegharị ihe.
Ọkà mmụta ihe ndị dị ndụ na onye na-amu amu aṅụ bụ Federica Bertocchini chọpụtara na mberede ike ikpuru na-emebi plastik afọ ole na ole gara aga.
"N'ọgwụgwụ oge, ndị na-azụ aṅụ na-etinyekarị hives ole na ole efu ka ha laghachi n'ọhịa n'oge opupu ihe ubi," Bertocchini gwara ndị AFP n'oge na-adịbeghị anya.
Ọ hichaa ekwo Ekwo ma tinye ikpuru nile n'ime akpa rọba.N'ịlaghachi mgbe obere oge gasịrị, ọ chọpụtara na akpa ahụ "na-agbapụta".
Waxwings (Galleria mellonella) bụ larvae na-atụgharị ghọọ nla wax dị mkpụmkpụ ka oge na-aga.N'oge ahihia, ikpuru na-abanye n'ime ekwo ekwo, na-eri nri na beeswax na pollen.
N'ịgbaso nchọpụta obi ụtọ a, Bertocchini na ndị otu ya na Centre for Biological Research Margherita Salas dị na Madrid malitere nyocha nke waxworm saliva wee bipụta nsonaazụ ha na Nature Communications.
Ndị nchọpụta ahụ jiri ụzọ abụọ mee ihe: gel permeation chromatography, nke na-ekewa ụmụ irighiri ihe dabere na nha ha, na gas chromatography-mass spectrometry, nke na-achọpụta iberibe molekụla dabere na oke nha ha na-ebu.
Ha kwadoro na mmiri na-akụrisị ogologo agbụ hydrocarbon nke polyethylene n'ime obere ụdọ oxidized.
Ha jiri nyocha nke proteomic mee nchọpụta iji chọpụta "njuju nke enzymes" na saliva, nke abụọ n'ime ha gosipụtara na ha na-eme ka polyethylene oxidize, ndị nchọpụta dere.
Ndị nyocha ahụ kpọrọ aha enzymes "Demeter" na "Ceres" aha chi nwanyị Gris oge ochie nke ọrụ ugbo, n'otu n'otu.
"N'ihe anyị maara, polyvinylases ndị a bụ enzymes mbụ nwere ike ime mgbanwe dị otú ahụ na fim polyethylene na okpomọkụ ụlọ n'ime obere oge," ndị nchọpụta ahụ dere.
Ha gbakwụnyere na n'ihi na enzymes abụọ ahụ meriri "nzọụkwụ mbụ na nke kachasị sie ike na usoro mmebi ahụ," usoro ahụ nwere ike ịnọchite anya "usoro ọzọ" maka njikwa mkpofu.
Bertocchini gwara AFP na n'agbanyeghị nyocha ahụ dị na mmalite, ọ nwere ike ịbụ na etinyere enzymes ahụ na mmiri wee wụsa ya na rọba n'ebe a na-emegharị ihe.Enwere ike iji ha na mpaghara ndị dịpụrụ adịpụ na-enweghị ebe mkpofu ahịhịa ma ọ bụ ọbụna n'ime ezinụlọ n'otu n'otu.
Ụmụ nje na nje bacteria dị n'oké osimiri na ala na-etolite na-eri nri na rọba, dịka nchọpụta 2021 si kwuo.
N'afọ 2016, ndị nchọpụta kwuru na a chọtara nje bacteria n'ime ebe a na-ekpofu ahịhịa na Japan nke na-akụda polyethylene terephthalate (nke a makwaara dị ka PET ma ọ bụ polyester).Nke a mechara kpalie ndị ọkà mmụta sayensị imepụta enzyme nke nwere ike imebi karama ihe ọṅụṅụ ngwa ngwa.
A na-emepụta ihe dị ka nde tọn 400 nke ihe mkpofu rọba kwa afọ n'ụwa, ihe dịka 30% bụ polyethylene.Naanị pasentị 10 n'ime ijeri tọn ijeri asaa a na-emepụta n'ụwa ka emegharịrị ka ọ dị ugbu a, na-ahapụ ọtụtụ ihe mkpofu n'ụwa.
Mbelata na iji ihe eji eme ihe ga-eme ka ihe ịrụ ụka adịghị ya na ọ ga-ebelata mmetụta nke mkpofu rọba na gburugburu ebe obibi, mana ịnwe ihe mkpocha ihe mkpofu nwere ike inyere anyị aka dozie nsogbu nke mkpofu plastik.
Oge nzipu: Ọgọst-07-2023
