O le a le Starch Eteru?

Starch eter o se ituaiga fetuutuunai o le masoa, o se carbohydrate e maua mai laau. O le suiga e aofia ai faiga faʻa-kemikolo e suia ai le fausaga o le masoa, e maua ai se oloa e faʻaleleia pe faʻaleleia meatotino. Starch ethers e maua le fa'aogaina lautele i fa'alapotopotoga fa'apisinisi eseese ona o latou uiga fa'apitoa. O nisi ituaiga masani o ethers masoa e aofia ai le hydroxyethyl starch (HES), hydroxypropyl starch (HPS), ma le carboxymethyl starch (CMS). O vaega taua nei o ethers starch:

1. Suiga vaila'au:

• Hydroxyethyl Starch (HES): I le HES, o vaega hydroxyethyl o loʻo faʻafeiloaʻi i le mole mole. O lenei suiga e faʻaleleia ai lona soluble vai ma faʻaogaina mo le faʻaogaina i vailaʻau, e pei o se plasma volume expander, ma i isi faʻaoga.
• Hydroxypropyl Starch (HPS): O le HPS e gaosia e ala i le tuʻuina atu o vaega hydroxypropyl i le fausaga o le masoa. O lenei suiga e faʻaleleia ai meatotino e pei o le soluble vai ma le mafai ona fai ata, faʻaaogaina i alamanuia e pei o meaʻai, ie, ma faufale.
• Carboxymethyl Starch (CMS): CMS e faia e ala i le faʻaofiina o vaega carboxymethyl i molelaʻau masoa. O lenei suiga e tuʻuina atu meatotino e pei o le faʻaleleia atili o le vai, mafiafia, ma le mautu, ma faʻatauaina i faʻaoga e pei o mea faʻapipiʻi, ie, ma vailaʻau.

2. Suavai Solubility:

• E masani ona fa'aalia e le masoa ethers le fa'aleleia atili o le soluble i le vai pe a fa'atusatusa i le masoa masani. O le fa'aleleia atili o le solubility e sili ona lelei i fa'asologa e mana'omia ai le fa'amavae vave po'o le ta'ape i le vai.

3. Viscosity ma Mafiafia Meatotino:

• Ethers starch e avea o ni mafiafia lelei i faʻatulagaga eseese. Latou te saofagā i le faʻateleina o le viscosity, lea e taua i faʻaoga e pei o mea faʻapipiʻi, paʻu, ma meaʻai.

4. Agava'a e fai ata tifaga:

• O nisi ethers starch, aemaise lava hydroxypropyl starch, o lo'o fa'aalia ai mea e fai ai ata. O le mea lea e talafeagai ai mo talosaga e mana'omia ai le faia o se ata manifinifi, fetuutuuna'i, e pei o mea'ai ma falema'i.

5. Fa'amautu ma Nonoa Meatotino:

• Starch ethers e masani ona faʻaaogaina e fai ma faʻamautu ma faʻapipiʻi i ituaiga eseese. Latou te fesoasoani e faʻaleleia le mautu o emulsions ma saofagā i le tuʻufaʻatasia o oloa e pei o vailaʻau vailaʻau.

6. Fa'apipi'i Talosaga:

• E mafai ona fa'aoga le ethers masoa i mea fa'apipi'i, e le gata i fale gaosi mea'ai (fa'ata'ita'iga, i mea e suitulaga i gum arabic) ma mea e le o ni mea'ai (fa'ata'ita'iga, i pepa ma mea fa'apipi'i afifi).

7. Fa'avasegaina o ie:

• I totonu o fale gaosi oloa, e faʻaaogaina ethers starch i fua faʻatatau e faʻaleleia ai le malosi ma le lamolemole o vulu i le taimi o lalaga.

8. Talosaga Fa'afoma'i:

• O nisi o ethers masoa o lo'o fa'aaogaina i vaila'au. Mo se faʻataʻitaʻiga, o le hydroxyethyl starch o loʻo faʻaaogaina e fai ma faʻalautele le volume plasma.

9. Faufale ma Mea Faufale:

• Starch ethers, aemaise lava hydroxypropyl starch ma carboxymethyl starch, o loʻo faʻaaogaina i fale faufale, aemaise lava i faʻamago paluga faʻafefiloi. Latou te saofagā i le faʻaleleia atili o le pipii, faʻaogaina, ma le taofiofia o le vai.

10. Alamanuia Taumafa:

11. Biodegradability:

12. Manatu Fa'alesiosiomaga:

E taua le maitauina o mea patino ma le faʻaogaina o ethers starch e mafai ona fesuisuiaʻi e faʻatatau i le ituaiga o suiga ma le faʻaogaina. O lo'o tu'uina atu e le au gaosi fa'amatalaga fa'apitoa fa'apitoa mo ituaiga ta'itasi o le ether starch e ta'ita'ia ai le au fai fa'atumu i le filifilia o le suiga sili ona talafeagai mo a latou fa'aoga patino.