Izilondolozizizinto ezithintela ukukhula kwemicroorganisms ngaphakathi kwemveliso okanye ukuthintela ukukhula kwemicroorganisms ezisabela kwimveliso.Izilondolozo azithinteli nje kuphela i-metabolism yeebhaktheriya, isikhunta kunye nemvubelo, kodwa zichaphazela ukukhula kwazo kunye nokuzala.Umphumo wokukhusela ekuqulunqweni uchaphazeleka kwizinto ezahlukeneyo, ezifana nobushushu bendalo, i-PH yokuqulunqa, inkqubo yokuvelisa, njl. Ngoko ke, ukuqonda izinto ezahlukahlukeneyo kunceda ukukhetha nokusebenzisa iintlobo ezahlukeneyo zokukhusela.
Imiba echaphazela ukusebenza kwezithinteli zokuthambisa zezi zilandelayo:
A. uhlobo lwezithinteli
Ubume besigcinakaliso ngokwaso: ukusetyenziswa koxinaniso lwezithinteli kunye nokunyibilika kwempembelelo enkulu ekusebenzeni
I-1, Ngokubanzi, i-concentration ephezulu, iyasebenza ngakumbi;
I-2, i-preservatives e-soluble Water ine-preservatives engcono yokusebenza: i-microorganisms idla ngokuphindaphinda kwisigaba samanzi somzimba we-emulsified, kumzimba we-emulsified, i-microorganism iya kubhengezwa kwi-interface yeoli-amanzi okanye ihambe kwisigaba samanzi.
Ukusebenzisana kunye nezinye izithako ekuqulunqweni: ukungasebenzi kwezithinteli ngezinye izinto.
B. Inkqubo yokuvelisa imveliso
Ubume bemveliso;ubushushu benkqubo yokuvelisa;indlela izinto ezongezwa ngayo
C. Imveliso yokugqibela
Iziqulatho kunye nokupakishwa kwangaphandle kweemveliso zichaza ngokuthe ngqo indawo yokuhlala ye-microorganisms kwi-cosmetics.Izinto ezibonakalayo zokusingqongileyo ziquka ubushushu, ubume bendaloixabiso pH, uxinzelelo lwe-osmotic, i-radiation, uxinzelelo lwe-static;Imiba yeekhemikhali ibandakanya imithombo yamanzi, izondlo (C, N, P, S sources), ioksijini, kunye nezinto ezikhulayo zezinto eziphilayo.
Ingaba kuhlolwa njani ukusebenza kwezikhuselo?
I-minimal inhibitory concentration (MIC) sisalathiso esisisiseko sokuvavanya umphumo wezithinteli.Okukhona ixabiso le-MIC lincinci, isiphumo siphezulu.
I-MIC yezithinteli ifunyenwe ngovavanyo.Ukugxininiswa okuhlukeneyo kokugcinwa kwezinto zokukhusela zongezwa kwi-liquid medium ngoluhlu lweendlela zokuhlanjululwa, kwaye emva koko i-microorganisms ifakwe i-inoculated kwaye ikhuliswe, i-concentration ye-lowest inhibitory concentration (MIC) yakhethwa ngokuqwalasela ukukhula kwe-microorganisms.
Ixesha lokuposa: Mar-10-2022