Kev lag luam muaj kev tsis muaj menyuam yog hais txog cov khoom noj hauv cov kaus poom hauv cov zaub mov hauv cov kaus poom kom ua tiav lub neej kom muaj kev nyab xeeb ntev dua thiab ua kom muaj kev nyab xeeb ntev dua. Kev ua haujlwm tsis muaj menyuam ntawm cov zaub mov hauv cov zaub mov microbiological yog cov neeg txheeb ze, tsis muaj cov kab mob pathogenic uas tuaj yeem sib txuas ntawm chav sov.
Txhawm rau kom ua tiav cov qauv kev lag luam tsis muaj menyuam, cov kaus poom zaub mov ntau heev xws li cov khoom siv raw ua ntej, canning, kom tsis muaj menyuam, thiab ntim. Cov tshuab tsim kev lag luam nrog ntau cov thev naus laus zis ntau lawm thiab ntau dua kev tswj hwm cov kev cai muaj ntau cov txheej txheem ntau thiab zoo meej ntau lawm.
Kev Lag Luam Hauv Tebchaws Ua Lag Luam Kev Tshuaj Xyuas Tshuab Hauv cov khoom noj Cov txheej txheem tshwj xeeb ntawm cov kaus poom lag luam kev tshuaj xyuas yog li hauv qab no (qee qhov kev soj ntsuam thib peb feem ntau muaj cov khoom kuaj xyuas ntxiv):
1. Cov kaus poom kab mob
Cov kaus poom kaus poom yog ib qho ntawm cov txheej txheem tseem ceeb hauv kev ua lag luam muaj zog kuaj cov khoom noj. Los ntawm cov kws tshaj lij kev coj ua cov txheej txheem ntawm cov kaus poom kuaj thiab kuaj cov kab mob microbial hauv cov kaus poom tuaj yeem raug ntsuas.
Cov kab mob sib xyaw ua ke nrog cov kaus poom, xws li Bacillus Starkophilus, shrettridium saccharolyticus, clostridium niger, thiab lwm yam .; mesophilic anaerobic kab mob, xws li botulinum toxin sheetridium, clostridium spoilage, clostridium butyricum, clostridium pasteurianum, thiab lwm yam .; Mesophilic aerobic kab mob, xws li bacillus subtilis, bacillus cerus, thiab lwm yam; Tsis yog-spore ua cov kab mob xws li Eschrehia coli, Streptococcus, poov xab thiab pwm, kub-resistant pwm thiab lwm yam. Ua ntej nqa tawm cov kaus poom cov kab lis kev cai, nco ntsoov ntsuas qhov pH ntawm cov tuaj yeem txhawm rau xaiv cov khoom haum uas tsim nyog.
2. Txheeb xyuas cov khoom ntsuas
Cov qauv piv txwv feem ntau siv rau kev coj tus qauv ntawm kev sim cov khoom noj ntawm cov zaub mov kaus poom. Thaum kuaj cov khoom noj loj ntawm cov kaus poom zaub mov, cov qauv ntsuas feem ntau nqa tawm raws li cov chaw tsim khoom lag luam, ntau yam, lub sijhawm ntawm cov kaus poom. Rau kev txawv txav ntawm cov kaus poom xws li xeb, dests, thiab sweet ntawm cov tub luam thiab cov chaw ua lag luam, feem ntau yog feem ntau nqa tawm raws li qhov xwm txheej. Nws yog qhov kev xav tau yooj yim rau cov qauv ntawm cov qauv kev sim los xaiv cov qauv uas tsim nyog raws li cov khoom sim uas cuam tshuam rau cov khoom noj hauv cov kaus poom zoo.
3. Reserve qauv
Ua ntej coj qauv tuav pov hwm, kev khiav haujlwm xws li hnyav, ua kom sov, thiab qhib cov kaus poom. Nqus cov phaus nyhav ntawm tus tuaj yeem sib cais, nyob ntawm seb hom ntawm tau, nws yuav tsum muaj qhov tseeb rau 1G lossis 2G. Ua ke nrog PH thiab kub, cov kaus poom tau khaws cia ntawm qhov kub tsis tu ncua rau 10 hnub; Cov kaus poom uas yog cov rog lossis xau thaum cov txheej txheem yuav tsum tau khaws tseg tam sim ntawd kev kuaj xyuas. Tom qab cov txheej txheem tiv thaiv tshav kub kom dhau mus, muab qhov chaw nyob ntawm chav tsev kub rau aseptic qhib. Tom qab qhib lub can, siv cov cuab yeej tsim nyog los noj 10-20 mg ntawm cov ntsiab lus ua ntej hauv lub xeev tsis huv, thiab khaws cia rau hauv lub tub yees.
4.Tsis muaj kua txob acid zaub mov kab lis kev cai
Kev cog qoob loo ntawm cov khoom noj cov kua roj tsawg: cog qoob loo ntawm Brompotassium Ntshav Broth ntawm Brompotassium Ntshav Broth ntawm 36 ° C. Cov txiaj ntsig tau smeared thiab stained, thiab ntau qhov kev kuaj xyuas tau npaj tom qab kev kuaj me me ntawm cov khoom noj muaj kua qaub. Thaum kev coj noj coj ua nyob rau hauv nruab nrab, tsom rau kev saib cov kua qaub thiab roj ntau heev ntawm cov microbies, yog li kom paub meej tias cov tsiaj microbial tshwj xeeb hauv cov zaub mov.
5. Cov ntawv kuaj me me
Kev kuaj cov tshuaj ntsuam xyuas me me yog qhov feem ntau siv thawj zaug kuaj rau cov kaus poom kev ua haujlwm tsis muaj zog kuaj, uas yuav tsum tau paub zoo cov neeg kuaj xyuas kom tiav. Nyob rau hauv ib puag ncig tsis muaj zog, ntxim nyiam cov kab mob ua kua ntawm cov kab mob kaus poom nyob rau hauv ib qho hluav taws xob muaj zog, yog li los txiav txim siab cov hom kab mob hauv cov kab mob. Kev kuaj xyuas, thiab npaj cov kauj ruam tom ntej ntawm kev ua kom zoo dua kev coj noj coj ua thiab kev txheeb xyuas kom paub ntxiv cov kab mob muaj nyob hauv cov tuaj yeem. Cov kauj ruam no yuav tsum muaj kev tshaj lij ntawm cov neeg kuaj xyuas, thiab tau dhau los ua qhov txuas uas tuaj yeem sim cov kev paub zoo tshaj plaws thiab kev txawj ntawm cov neeg soj ntsuam.
6. Kev ua haujlwm Kuaj rau cov khoom noj acidic nrog pH hauv qab 4.6
Rau cov zaub mov acidic nrog pH tus nqi qis dua 4.6, cov khoom noj lom tau noj zaub mov rau cov khoom noj yog feem ntau tsis tas yuav. Nyob rau hauv cov txheej txheem tshwj xeeb, ntxiv rau kev siv acidic broth khoom siv raws li qhov nruab nrab, nws tseem yuav tsum siv lub malt extract broth li qhov nruab nrab rau kev cog qoob loo. Los ntawm smearing thiab kev kuaj me me ntawm cov kab mob kab mob hauv cov kaus poom tuaj yeem raug ntsuas ntxiv thiab ntsuas kom muaj kev nyab xeeb ntawm cov khoom noj acid.
Lub sij hawm Post: Aug-10-2022