Tshuaj Tua Kab Mob Muaj Nyob Hauv Qee Cov Khoom Nqaij Nceb - Tshuaj Tua Kab Mob

2024 Tus sau: Daisy Haig | [email protected]. Kawg hloov kho: 2023-12-17 03:09

Koj puas tau nkees me ntsis ntawm saib FDA tus tsiaj ntawv kom nco qab los xyuas kom koj cov tsiaj tsis nyob hauv? Txij li thaum Lub Kaum Ob Hlis 31, 2014, xya cov zaub mov txawv tsiaj lossis khoom noj tau rov qab vim yog tus kab mob Salmonella lossis Listeria. Hmoov tsis zoo, qhov no phim qhov kev rov qab zoo ib txwm muaj li ntawm 20 txog 25 tus lej ib xyoos ib zaug rau khoom noj tsiaj.

Kuv tau sau cov ntawv no ntawm no thiab lwm qhov uas piav qhia tias vim li cas tus qauv no yuav tsis hloov pauv rau yav tom ntej. Tab sis cov protein nrog cov tshuaj tua kab mob uas pom muaj hauv cov nceb uas loj hlob ntawm cov nees lub cev yuav sai sai hloov tej yam.

Cov txiaj ntsig ntawm Copsin

Vim los ntawm kev nyom, cov quav ntawm nees yog hauv tsev kom muaj ntau yam tsiaj me me, nrog rau cov kab mob fungi thiab kab mob. Cov nceb hu ua Coprinopsis cinerea loj hlob sai ntawm cov quav. Cov kws tshawb nrhiav ntawm Swiss Federal Institute of Technology hauv Zurich cais cov protein tawm ntawm lub hau tawm hu ua “copsin.” Lawv pom tias cov protein ua rau txoj kev loj hlob ntawm cov kab mob thiab ua zoo li tshuaj tua kab mob. Oh, los ntawm txoj kev, copro- yog Greek cov lus ua ntej rau cov quav los yog quav, yog li lub npe hu ua fungus thiab protein.

Raws li nws hloov tawm, copsin belongs rau ib chav kawm ntawm cov protein hu ua defensins uas tsim tawm los ntawm ntau hom tsiaj roj ntsha. Qhov tseeb tib neeg tsim cov tshuaj tiv thaiv kab mob rau ntawm daim tawv nqaij thiab ntawm cov nqaij mos ua kom tua kab mob ua rau micro mob.

Dab tsi teev copsin sib nrug los ntawm lwm cov kev tiv thaiv yog tias nws yog qhov ruaj khov nyob rau hauv cov xwm txheej uas rhuav tshem lwm cov protein. Nws tuaj yeem muab rhaub kom 100 degrees F^o, raug rau cov acids muaj zog rau cov xuab moos, thiab kho nrog cov enzymes nruj heev, tsis muaj kev cuam tshuam nws cov tshuaj tua kab mob. Hais tias tus kws tshawb fawb hu ua Andreas Essig: "Cov yam ntxwv no tso cai rau peb, piv txwv li, tseem yuav siv rau hauv kev lag luam khoom noj khoom haus, kev txuag zaub mov, kev tsim tawm qhov twg cov kua qaub muaj zog hauv cov huab cua sov heev."

Copsin tshwj xeeb tshaj yog ua rau Listeria, yog li nws cov txiaj ntsig zoo rau kev lag luam khoom noj tsiaj yog me ntsis ntawm lub hlwb.

Ib yam li cov tshiab tau pom teixobactin Kuv nyuam qhuav tawm txog, copsin nrawm tua kab mob los ntawm kev cuam tshuam lawv lub peev xwm los ua lub ntsej muag ntawm tes. Txoj kev rhuav tshem no ua rau nws muaj kev nyuaj heev rau cov kab mob nkag kis yooj yim. Listeria tau zoo siab rau txoj kev ua tiav zoo hauv kev ua rau cov khoom noj lom hauv cov tsiaj thiab tib neeg vim nws muaj peev xwm tiv taus tshuaj tua kab mob.

Tus kws tshawb nrhiav Markus Aebi tsis paub meej tias copsin tseem tuaj yeem siv zoo li lwm cov tshuaj tua kab mob qub, tab sis nws txoj haujlwm hauv kev tshawb fawb tshuaj tua kab mob tseem ceeb heev. Nws xav paub txog dab tsi uas nws hu ua cov lus nug tseem ceeb ntawm yuav ua li cas fungi tau siv cov tshuaj tiv thaiv kab mob thiab lwm yam tshuaj tua kab mob zoo rau ntau lab xyoo los tiv thaiv lawv tus kheej tiv thaiv cov kab mob, thaum tshuaj tua kab mob siv nyob rau hauv cov tshuaj niaj hnub tau tsim tsis kam hauv tsuas yog 70 xyoo, qhia Jim Drury, uas npog zaj dab neeg ntawm copsin rau Reuters xov xwm kev pabcuam.

Tsis txhob saib rau copsin tshwm rau hauv koj daim ntawv teev npe khoom noj tsiaj sai. Paul tus kws tshawb fawb qib laus tau hais tias, "Peb tab tom loj hlob Pichia pastoris, uas yog cov poov xab methylotrophic, thiab hauv cov poov xab no peb ua cov tshuaj copsin."

Kallio hais tias nws siv sijhawm tsib hnub los ua qoob loo, sau qoob loo, thiab rho tawm cov tshuaj copsin. Yog tias copsin ua pov thawj muaj txiaj ntsig rau kev nyab xeeb ntawm cov khoom noj tsiaj, nws yuav xav tau txoj hauv kev los ntawm kev ua kom sai dua rau kev tsim cov khoom ntau ntau.

Dr. Ken Tudor