Kev tshawb fawb tsis tu ncua ntawm Michigan State University (MSU) tuaj yeem muaj kev cuam tshuam loj rau txoj kev ua zaub ntsuab hauv Tebchaws Meskas.
Qhov ntawd yog raws li tsab ntawv ceeb toom Elliot Ryser tau muab rau Michigan Vegetable Council thaum Lub Peb Hlis. Ryser yog tus xibfwb ntawm MSU Lub Tsev Haujlwm Saib Xyuas Khoom Noj thiab Tib Neeg Khoom Noj. Nws thiab nws cov npoj yaig tab tom ua haujlwm rau txoj hauv kev kom txo qis E. coli O157:H7 kev phom sij cuam tshuam nrog cov nplooj ntsuab tshiab thiab txiav tawm tshiab.
Raws li tsab ntawv ceeb toom, kev tshawb fawb muaj plaub lub hom phiaj tseem ceeb: 1) txhawm rau ntsuas qhov hloov pauv ntau ntawm E. coli ntawm nplooj ntsuab thaum lub sijhawm ua haujlwm. 2) Txhawm rau ntsuas qhov ua tau zoo ntawm cov tswv yim cuam tshuam rau kev txhim kho kev nyab xeeb thiab txee lub neej ntawm cov nplooj ntsuab tshiab uas muaj kab mob E. coli. 3) Txhawm rau tsim cov qauv kev pheej hmoo lej rau E. coli cov kab mob sib kis nrog rau kev tsim thiab muag cov nplooj ntsuab. 4) Txhawm rau tshaj tawm cov txiaj ntsig kev tshawb fawb thiab cov tswv yim tswj kev muaj peev xwm los ntawm pawg neeg sib tham thiab cov koom haum hauv cheeb tsam.
Cov kev tshawb fawb lub hom phiaj cov neeg tuaj saib suav nrog cov nplooj ntsuab ntsuab, cov neeg tsim khoom, cov khw muag khoom, cov khoom siv, cov tswj hwm tsoomfwv thiab cov koom haum kev lag luam, raws li tsab ntawv ceeb toom.
Txhawm rau kom txaus siab rau thawj lub hom phiaj, cov kws tshawb fawb tau inoculated nplooj ntsuab nrog E. coli thiab khiav lawv los ntawm kev simulated ua kab, nyob rau hauv kev sim kom nrhiav tau tus nqi ntawm E. coli uas yuav hloov mus rau cov khoom siv thaum ua.
Cov kws tshawb fawb pom tias, thaum lub sij hawm nplooj ntsuab ua, 83 feem pua rau 97 feem pua ntawm E. coli inoculum pauv mus rau cov dej ntxuav. Tom qab ua tiav, E. coli cov pejxeem tau siab tshaj plaws ntawm cov shredder thiab conveyor, ua raws li cov flume tank thiab shaker rooj, raws li tsab ntawv ceeb toom.
Ryser tau hais tias "Nws nyuaj heev kom tshem tawm E. coli thaum nws nkag mus rau hauv txoj kab ua haujlwm," Ryser tau hais.
Cov kws tshawb fawb kuj tau saib ntawm kev hloov pauv ntawm E. coli los ntawm kev ua cov khoom siv rau cov khoom. Nws yog qhov tseeb heev tias cov kab mob tuaj yeem nyob ntawm cov khoom siv thaum lub sijhawm ua haujlwm, thiab tom qab ntawd kis cov kab mob loj ntawm cov tsis muaj kab mob tshiab-txiav nplooj ntsuab, raws li tsab ntawv ceeb toom.
Txhawm rau ua kom tau raws li lub hom phiaj thib ob, cov kws tshawb fawb tab tom saib cov txiaj ntsig X-ray hluav taws xob muaj rau E. coli. Raws li tsab ntawv ceeb toom, FDA tau tshaj tawm txoj cai xyoo tas los uas tso cai rau kev siv irradiation rau pasteurizing iceberg lettuce thiab spinach. Txoj cai tshiab muab txoj hauv kev rau kev lag luam los txais yuav irradiation technologies uas tuaj yeem ua rau E. coli tsis muaj kev cuam tshuam rau cov yam ntxwv zoo.
Cov kws tshawb fawb tau ua haujlwm nrog Rayfresh Foods - ib lub tuam txhab Ann Arbor, Mich.-raws li kev tshawb fawb X-ray, Ryser tau hais.
Cov kev tshawb fawb tsis ntev los no, tab sis, raws li tsab ntawv ceeb toom, "X-ray irradiation muaj ntau yam zoo, nrog rau kev ua tau zoo dua rau cov kab mob noj zaub mov uas tsis muaj kev cuam tshuam rau cov khoom lag luam zoo thiab muaj peev xwm muab tau yooj yim rau hauv cov chaw lag luam mus tas li. kab ua haujlwm. "
Rau lub hom phiaj thib peb, tus qauv tsim nyog tau tsim nyob rau hauv Excel kom suav nrog E. coli hla kev sib kis thaum cov kab mob sib kis nkag mus rau hauv txoj kab ua haujlwm, raws li tsab ntawv ceeb toom. Cov txiaj ntsig tau los ntawm tus qauv "qhia tias feem ntau cov qauv kev npaj yuav tsis pom zoo E. coli O157:H7 thaum lub sijhawm tsim khoom. Yog li, thaum tsis muaj E. coli tua cov kauj ruam, mob siab rau siv cov tshuaj tua kab mob rau cov khoom siv thiab cov dej ntxuav yog pom zoo kom txo cov kab mob sib kis thaum ua haujlwm. "
Thiab thaum kawg, kom ua tiav lub hom phiaj thib plaub, cov ntaub ntawv tshawb fawb ua ntej tau muab qhia rau ntawm pawg thawj coj saib xyuas lub rooj sib tham dhau lub Yim Hli hauv Columbus, Ohio, nrog rau lub rooj sib tham txhua xyoo ntawm International Association rau Khoom noj khoom haus Kev tiv thaiv. Cov ntaub ntawv kuj tau muab faib rau ntawm Michigan Vegetable Council lub rooj sib tham hauv lub Peb Hlis.
