war

Quaternary Amooniyam Cusbada loogu talagay in lagu nadiifiyo

Quanternary ammonium cusbada (QAS) waa iskudhisyo cationic ah oo ay kujiraan kooxo alkyl ah oo dherer silsilad ah oo ah C8-C18, kuwaas oo ah biyo lagu milmi karo loona isticmaali karo jeermis dilayaasha warshadaha dharka.

QAS waa xeryahooda ionic ee leh quwernary ammonium nitrogen, afar alkyl ama aryl kooxo ku xiran nitrogen-kan, iyo ion anionic sida chloride ama bromide. Afarta koox ee alkyl ka mid ah, koox ka mid ah waa silsilad alkyl dheer ah oo ka kooban in ka badan sideed hydrocarbons sidoo kale waxay u adeegtaa kooxda biyo-biyoodka. Kooxaha Hydrophobic ee QAS waxay u muuqdaan inay saameyn ku yeeshaan shaqadooda antimicrobial (Tiller et al., 2001; Zhao iyo Sun, 2007). Iyada oo ay jirto biyo-xoog badan, hawlaha antimicrobial ee awoodda badan ee QAS ay leedahay (Zhao iyo Sun, 2008) (Jaantus 16.1 iyo Shaxda 16.1). Qaar badan oo ka mid ah xeryahooda 'QAS' waxay leeyihiin howlo firfircoon. QAS waa biocides wax ku ool ah marka loo isticmaalo xalalka biyaha iyo sida jeermiska jeermiska loo isticmaalo. Marka QAS ay kiimiko ahaan kuxiran yihiin sagxadaha dusha sare howlahooda waa laga hor istaagi karaa iyadoo kuxiran sida ay isuguxiranyihiin iyo qaababka ugu dambeeya ee QAS ee sagxadaha. Jidh ahaan lagu darey QAS ee fiilooyinka ayaa bixin kara shaqooyinka antimicrobial iyadoo si tartiib tartiib ah looga sii daayo sagxadaha dusha sare inta lagu jiro isticmaalka, taas oo bixin karta howlaha loogu talagalay qalabka.

 

Ku urursanaanta inay sababto dhimista 6-log ee bakteeriyada waqtiga xiriirka

QAS

1 daqiiqo (E. coli) (ppm)

5 daqiiqo (E. coli) (ppm)

1 daqiiqo (Saureus) (ppm)

5 daqiiqo (S. aureus) (ppm)

ALPC

100

100

100

50

AALPC

100

100

100

50

BADPB

50

50

50

10

NADPB

50

10

50

10

图片1

Waqtiga boostada: Abriil-16-2021