Focus on Cellulose ethers

Eseesega i le va o le hydroxypropyl starch ma le Hydroxypropyl methyl cellulose

Eseesega i le va o HPS ma HPMC

Hydroxypropyl masoa(HPS) maHydroxypropyl methyl cellulose(HPMC) o ni polysaccharides e lua e masani ona faʻaaogaina i faʻalapotopotoga eseese, e aofia ai vailaʻau, meaʻai, ma le fausiaina. E ui lava i mea e tutusa ai, o le HPS ma le HPMC e iai le eseesega ma'oti i o la'ua mea fa'aletino ma vaila'au, fa'atasi ai ma a latou matafaioi fa'atino. I totonu o lenei tusiga, o le a tatou suʻesuʻeina le eseesega i le va o HPS ma HPMC i tulaga o latou vailaʻau, meatotino, ma faʻaoga.

Fa'atonuga vaila'au

O le HPS ose mea e maua mai i le masoa lea e maua mai i le fa'aogaina o vaila'au fa'alenatura fa'atasi ma vaega hydroxypropyl. O vaega o le hydroxypropyl o lo'o fa'apipi'i i vaega o le hydroxyl i luga o le mole mole masoa, ma maua ai se masoa fa'aleleia ma fa'aleleia atili le solubility ma le mautu. O le HPMC, i le isi itu, o se mea e maua mai i le cellulose e maua mai i vailaʻau faʻasolosolo cellulose faʻatasi ai ma vaega hydroxypropyl ma methyl. O vaega o le hydroxypropyl o loʻo faʻapipiʻi i vaega o le hydroxyl i luga o le mole mole cellulose, ae o vaega methyl o loʻo faʻapipiʻi i iunite anhydroglucose.

Meatotino

O le HPS ma le HPMC e iai uiga fa'aletino ma kemikolo ma'oti e talafeagai ai mo fa'aoga eseese. O meatotino a HPS e aofia ai:

  1. Solubility: E solu le HPS i le vai ma e mafai ona fai ni vaifofo manino i le maualalo o fa'atonuga.
  2. Viscosity: O le HPS e maualalo le viscosity pe a faatusatusa i le HPMC ma isi polysaccharides.
  3. Tulaga mautu: O le HPS e mautu i le tele o le vevela ma le pH maualuga ma e tetee i enzymes ma isi mea faʻaleagaina.
  4. Gelation: E mafai e le HPS ona fausia ni gels e mafai ona fa'afefeteina ile maualuga maualuga, lea e talafeagai mo mea'ai eseese ma vaila'au.

O meatotino a le HPMC e aofia ai:

  1. Solubility: HPMC e solu i le vai ma fau ni vaifofo manino i le maualalo o fa'atonuga.
  2. Viscosity: O le HPMC e maualuga lona viscosity ma e mafai ona fausia ni fofo viscos tusa lava pe maualalo concentrations.
  3. Tulaga mautu: O le HPMC e mautu i le lautele o le vevela ma le pH maualuga ma e tetee i enzymes ma isi mea faʻaleagaina.
  4. Mafai e fai ata tifaga: E mafai e le HPMC ona fai ni ata manifinifi, fetuutuuna'i e aoga i vaila'au eseese ma mea teuteu.

Talosaga

HPS ma HPMC e eseese talosaga ona o latou meatotino eseese. O talosaga a HPS e aofia ai:

  1. Mea'ai: O lo'o fa'aaogaina le HPS e fai ma mea mafiafia ma fa'amautu i mea'ai eseese, e pei o sosi, sou, ma fa'alavalava.
  2. Falema'i: O lo'o fa'aaogaina le HPS e fai ma mea fa'apipi'i ma fa'ama'i i papama'a ma pusa ma avea ma ta'avale mo le tu'uina atu o vaila'au.
  3. Fausiaina: O le HPS o loʻo faʻaaogaina e fai ma mea mafiafia ma fusifusia i oloa faʻavae sima, e pei o le sima ma sima.

O talosaga a le HPMC e aofia ai:

  1. Mea'ai: O le HPMC e fa'aaogaina e fai ma mea mafiafia ma fa'amautu i mea'ai eseese, e pei o aisakulimi, yogurt, ma mea tao tao.
  2. Pharmaceutical: O le HPMC e faʻaaogaina e fai ma mea faʻapipiʻi, faʻamaʻi, ma faʻapipiʻi ata i totonu o laupepa ma capsules ma o se taʻavale mo le tuʻuina atu o vailaʻau.
  3. Tausiga a le Tagata Lava Ia: E fa'aogaina le HPMC i oloa tau tausiga eseese, e pei o lotion, shampoos, ma mea teuteu, e fai ma fa'amalo ma fa'amautu.
  4. Fausiaina: O le HPMC o loʻo faʻaaogaina e avea o se mafiafia ma faʻapipiʻi i oloa faʻavae sima, e pei o le sima ma le sima, ma o se sui faʻapipiʻi mo mea faufale.

Fa'ai'uga

I le faaiuga, o le HPS ma le HPMC o ni polysaccharides e lua o loʻo faʻaaogaina lautele i le tele o mea tau pisinisi. O le HPS o se mea e maua mai i le masoa e la'ititi le viscosity, e mafai ona toe fa'afo'i fa'amama, ma e mautu i le tele o le vevela ma le maualuga o le pH. O le HPMC, i le isi itu, o se mea e maua mai i le cellulose e maualuga lona viscosity, e mafai ona fausia ni ata manifinifi, fetuutuunai, ma e mautu foi i le tele o le vevela ma le pH. O le eseesega i le va o nei mea e lua e talafeagai mo faʻaoga eseese i pisinisi eseese, e aofia ai meaʻai, vailaʻau, tausiga a le tagata lava ia, ma le fausiaina.

I le tulaga o lo latou fausaga kemikolo, o le HPS o se masoa ua suia e aofia ai vaega hydroxypropyl, ae o le HPMC o se cellulose ua suia e aofia uma ai vaega hydroxypropyl ma methyl. O lenei eseesega i le fausaga o vailaʻau e fesoasoani i le tulaga faʻapitoa ma vailaʻau o nei mea faʻapitoa, e pei o le solubility, viscosity, mautu, ma le gelation poʻo le mafai ona fai ata.

O talosaga a HPS ma HPMC e ese foi ona o latou meatotino eseese. O le HPS e masani ona faʻaaogaina e avea o se mafiafia ma faʻamautu i meaʻai meaʻai, o se mea faʻapipiʻi ma faʻamaʻi i vailaʻau, ma se mafiafia ma faʻamau i mea faufale. I le taimi nei, o le HPMC o loʻo faʻaaogaina lautele e avea o se mea faʻapipiʻi ma faʻamautu i meaʻai meaʻai, o se mea faʻapipiʻi, faʻamaʻi, ma le faʻapipiʻiina o ata tifaga i vailaʻau faʻamaʻi, faʻamaufaʻailoga ma faʻamautu i mea tau tausiga a le tagata lava ia, ma se mea faʻapipiʻi, faʻapipiʻi, ma se mea faʻapipiʻi i mea faufale.

I se aotelega, HPS ma le HPMC o ni polysaccharides e masani ona faʻaaogaina o loʻo i ai fausaga vailaʻau maʻoti, mea faitino ma vailaʻau, ma faʻaoga i pisinisi eseese. O le malamalama i le eseesega i le va o nei mea e lua e taua tele mo le filifilia o mea talafeagai mo faʻaoga faʻapitoa ma faʻamalieina a latou faʻatinoga i faiga faʻapisinisi eseese.


Taimi meli: Mati-18-2023
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