Palmic acid (hexadecanoic acid nyob rau hauvIUPAC nomenclature) yog afatty acidnrog 16-carbon saw. Nws yog qhov feem ntausaturated fatty acidpom nyob rau hauv cov tsiaj, nroj tsuag thiab microorganisms. Nwstshuaj formulayog CH3(CH2)14COOH, thiab nws qhov C: D piv (tag nrho cov pa roj carbon atoms rau tus naj npawb ntawm carbon-carbon ob daim ntawv cog lus) yog 16: 0. Nws yog ib feem tseem ceeb ntawmxibtes rojlos ntawm cov txiv hmab txiv ntoo ntawmElaeis guineensis(cov roj xibtes), ua rau 44% ntawm tag nrho cov rog. Nqaij, cheeses, butter, thiab lwm yam khoom noj siv mis kuj muaj palmitic acid, uas yog 50-60% ntawm tag nrho cov rog.
Palmetic acid tau tshawb pom los ntawmEdmond Fremy(nyob rau hauv 1840) nyob rau hauv lubsaponificationntawm xibtes roj, uas txheej txheem tseem niaj hnub no txoj kev lag luam tseem ceeb rau kev tsim cov kua qaub.Triglycerides(fas) inxibtes rojyoghydrolysedlos ntawm high-temperature dej thiab resulting sib tov yogfractionally distilled.
Palmic acid yog tsim los ntawm ntau hom nroj tsuag thiab kab mob, feem ntau nyob rau theem qis. Ntawm cov khoom noj uas muaj nyob rau hauvmis nyuj,butter,cheese, thiab ib conqaij, zoo licocoa butter,txiv roj roj,taum roj, thiabsunflower roj.
Palmitic acid yog ib tug saturated fatty acid feem ntau pom nyob rau hauv cov tsiaj thiab nroj tsuag. Nws yog ib qho tseem ceeb ntawm cov roj xibtes thiab tseem muaj nyob rau hauv cov nqaij, cov khoom siv mis nyuj thiab qee cov roj zaub. Palmetic acid kuj muaj nyob rau hauv cov hmoov hmoov thiab muaj ntau yam kev siv nyob rau hauv ntau yam lag luam.
Palmitic acid hmoov yog feem ntau siv hauv cov tshuaj pleev ib ce thiab kev lag luam tu tus kheej. Nws yog lub npe hu rau nws cov khoom emollient, uas pab soften thiab du daim tawv nqaij. Nws yog feem ntau siv nyob rau hauv cov formulation ntawm cream, lotions, thiab moisturizers. Palmitic acid hmoov kuj tseem siv rau hauv cov khoom tu plaub hau los pab kho thiab tu plaub hau.
Palmitic acid tuaj yeem siv rau hauv cov teb no:
Surfactant
Palmitic acid yog siv los tsimxab npum,tshuaj pleev ib ce, thiab muaj pwmtso tus neeg sawv cev. Cov ntawv thov no siv sodium palmitate, uas feem ntau tau txais los ntawmsaponificationntawm xibtes roj. Rau qhov kawg no, xibtes roj, rendered los ntawm xibtes ntoo (homElaeis guineensis), kho nrogsodium hydroxide(nyob rau hauv daim ntawv ntawm caustic soda los yog lye), uas ua rauhydrolysisntawmesterpawg, yieldingglycerolthiab sodium palmitate.
Khoom noj khoom haus
Vim nws pheej yig thiab ntxiv kev ntxhib los mos thiab "qhov ncauj"rau cov khoom noj uas ua tiav (zaub mov yooj yim), palmitic acid thiab nws cov ntsev ntsev pom dav siv hauv cov khoom noj. Sodium palmitate tau tso cai ua cov khoom siv ntuj tsim hauvorganiccov khoom.
Pharmaceuticals
Palmitic acid hmoov yog siv los ua ib qho excipient nyob rau hauv ntau yam tshuaj thiab ntxiv formulations. Nws feem ntau siv los ua cov roj nplua nyeem hauv kev tsim cov ntsiav tshuaj thiab tshuaj ntsiav. Palmitic acid hmoov kuj tseem siv tau los ua tus nqa khoom rau cov khoom xyaw tshuaj nquag, pab txhim kho lawv txoj kev ruaj ntseg thiab bioavailability.
Ua liaj ua teb
Palmitic acid hmoov yog siv los ua cov khoom noj hauv tsiaj pub. Nws yog feem ntau ntxiv rau cov tsiaj nyeg pub zaub mov los txhim kho cov khoom noj khoom haus thiab palatability. Palmitic acid hmoov kuj tseem siv tau los ua cov txheej txheem rau kev ua liaj ua teb, pab txhim kho lawv cov dispersion thiab kev ua tau zoo.
Tub rog
Aluminiumntsevntawm palmitic acid thiabnaphthenic acidyog covcov tshuaj gellingsiv nrog petrochemicals volatile thaum lub sij hawmNtiaj Teb Tsov Rog IItsim tawmnapalm. Lo lus "napalm" yog muab los ntawm cov lus naphthenic acid thiab palmitic acid.
Zuag qhia tag nrho, palmitic acid hmoov muaj ntau yam kev siv thoob plaws ntau yam kev lag luam, ua rau nws muaj ntau yam thiab muaj txiaj ntsig zoo. Nws cov khoom emollient, stability thiab versatility ua rau nws yog ib qho kev xaiv nrov ntawm formulators thiab manufacturers tab tom nrhiav los txhim kho cov khoom zoo thiab kev ua tau zoo.
Post lub sij hawm: Apr-09-2024
