He aha nā mea e hoʻopili ai i ka hana o nā mea mālama cosmetic

Nā mea mālamahe mau mea e pale ai i ka ulu ana o na microorganisms i loko o ka huahana a i ole ia e pale i ka ulu ana o na microorganisms e pane me ka huahana. ʻAʻole pale wale nā ​​mea mālama i ka metabolism o ka bacteria, mold a me ka hū, akā pili pū kekahi i ko lākou ulu a me ka hana hou. Hoʻopili ʻia ka hopena preservative i ka hoʻopili ʻana e nā ʻano mea like ʻole, e like me ka mahana o ke kaiapuni, ka PH o ka hoʻokumu ʻana, ka hana hana, a me nā mea ʻē aʻe.
ʻO nā mea e pili ana i ka hana ʻana o nā preservatives cosmetic penei:
A. ʻano o nā mea mālama
ʻO ke ʻano o ka preservative ponoʻī: ka hoʻohana ʻana i ka hoʻopaʻa ʻana o nā preservatives a me ka solubility o ka hopena nui i ka hopena.
1, Ma keʻano laulā, ʻoi aku ka kiʻekiʻe o ka manaʻo, ʻoi aku ka maikaʻi;
2, ʻoi aku ka maikaʻi o ka mālama ʻana i nā mea mālama wai: ʻoi aku ka nui o nā microorganisms i ka wai o ke kino emulsified, i ke kino emulsified, e hoʻopili ʻia ka microorganism ma ka ʻaila-wai a neʻe paha i ka pae wai.
Ka launa pū ʻana me nā mea ʻē aʻe i ka hoʻokumu ʻana: inactivation o preservatives e kekahi mau mea.
B. Kaʻina hana o ka huahana
Ka honua hana; ka mahana o ka hana hana; ka hoʻonohonoho ʻana i nā mea i hoʻohui ʻia
C. Hua hope
ʻO ka ʻike a me ka hoʻopili waho o nā huahana e hoʻoholo pololei i ke ʻano ola o nā microorganisms i nā mea hoʻonaninani. ʻO nā mea kūlohelohe kino e pili ana i ka mahana, ka honuawaiwai pH, kaomi osmotic, radiation, static pressure; Loaʻa nā kumu wai, nā meaʻai (C, N, P, S) , oxygen, a me nā mea ulu kūlohelohe.
Pehea e loiloi ʻia ai ka maikaʻi o nā preservatives?
ʻO ka liʻiliʻi inhibitory concentration (MIC) ka papa kuhikuhi kumu e loiloi i ka hopena o nā preservatives. ʻO ka liʻiliʻi o ka waiwai MIC, ʻoi aku ka kiʻekiʻe o ka hopena.
Ua loaʻa ka MIC o nā preservatives e nā hoʻokolohua. Ua hoʻohui ʻia nā ʻokoʻa like ʻole o nā preservatives i ka wai wai e kahi ʻano o nā ʻano dilution, a laila hoʻokaʻawale ʻia nā microorganisms a hoʻoulu ʻia, koho ʻia ka haʻahaʻa haʻahaʻa haʻahaʻa (MIC) ma ka nānā ʻana i ka ulu ʻana o nā microorganisms.