Nnyocha sayensịna mmepụta, ịdị mma na ngwa nke ihe nkiri oriri / biodegradable na mmepụta nri bụ nke ọtụtụ ndị nyocha n'ụwa nile mere ma kọwapụta ya n'akwụkwọ nyocha.5-9.Nnukwu ike azụmahịa na gburugburu ebe obibi na mpaghara ihe nkiri / mkpuchi ihe oriri / biodegradable na-emekarị ka ọ pụta ìhè.5,10,11na ọtụtụ akwụkwọ ekwuworị okwu ndị metụtara akụrụngwa akụrụngwa, mbugharị gas, na mmetụta nke ihe ndị ọzọ na akụrụngwa ndị a, dị ka ụdị na ọdịnaya nke plasticisers, pH, iru mmiri na okpomọkụ wdg.6, 8, 10-15.
Agbanyeghị,nyocha n'ime ihe nkiri oriri na-edozi ahụka na-amalite na nyocha na ngwa mmepụta ihe nke ihe nkiri oriri / biodegradable enwetawo nlebara anya na afọ ndị na-adịbeghị anya, Otú ọ dị, mkpuchi ka dị oke oke.
Ndị nyocha naÒtù Nkwakọ ngwaahịa nri, Department of Food and Nutritional Sciences, University College Cork, Ireland, ewepụtala ọtụtụ ihe na-arụ ọrụ, ihe nkiri nke dabeere na bioopolymer, oriri na-edozi ahụ / biodegradable n'ime afọ ole na ole gara aga.
Oke nke nkwakọ nri
N'ozuzu, ihe nkiri ndị a na-eri eri nwere obere ngwa n'ihi ọdịdị anụ ahụ ha dị ala.Dịka ọmụmaatụ, ihe nkiri otu, nke dabere na lipid nwere ezigbo ihe mgbochi mmiri mana enweghị ike ọrụ23.N'ihi ya, a na-emepụta ihe nkiri ndị a kpara akpa site na ijikọ ihe nkiri abụọ ma ọ bụ karịa biopolymer ọnụ.Otú ọ dị, ihe nkiri laminated na-aba uru maka otu ihe nkiri biopolymer dabeere na emulsion n'ihi na ha nwere ihe mgbochi emelitere.Ịmepụta ihe owuwu laminated nwere ike imeri adịghị ike ndị a site na ihe nkiri ihe nkiri na-eri nri / biodegradable nwere ọtụtụ ọkwa ọrụ.
Ihe nkiri oriri na mkpuchidabere na protein soluble mmiri na-abụkarị mmiri na-agbaze n'onwe ha mana ha nwere ezigbo oxygen, lipid na ihe mgbochi ekpomeekpo.Ndị na-edozi ahụ na-arụ ọrụ dị ka ihe na-arụkọ ọrụ ọnụ, matriks nhazi na usoro multicomponent, na-emepụta ihe nkiri na mkpuchi nwere ezigbo ihe eji arụ ọrụ.Lipids, n'aka nke ọzọ, na-arụ ọrụ dị ka ihe mgbochi mmiri dị mma, mana ha nwere ihe mgbochi gas na-adịghị mma, lipid na ekpomeekpo.Site na ijikọta protein na lipids na emulsion ma ọ bụ bilayer (akpụkpọ ahụ nke nwere okpukpu abụọ nke molecular), enwere ike jikọta àgwà ọma nke abụọ ahụ ma belata ihe ndị na-adịghị mma.
Site na nyocha nke ndịOtu nkwakọ nri nrina UCC, njirimara izugbe nke ihe nkiri a na-eri nri / biodegradable mepụtara bụ ndị a:
- Ọkpụrụkpụ ihe nkiri a na-eri nri / ihe na-emebi emebi sitere na 25μm ruo 140μm
- Ihe nkiri nwere ike ịpụta nke ọma, pụta ìhè, na translucent ma ọ bụ opaque dabere na ihe eji eme ihe yana usoro nhazi a na-arụ ọrụ.
- Ụdị ihe nkiri dị iche iche nke ịka nká n'okpuru ọnọdụ gburugburu ebe obibi a na-achịkwa na-emeziwanye ihe ndị na-emepụta ihe na ihe mgbochi gas
- Ịchekwa ihe nkiri n'ọnọdụ ọnọdụ (18-23 ° C, 40-65 pasent RH) maka afọ ise agbanweghị njirimara nhazi.
- Ihe nkiri ndị a na-emepụta site na ihe dị iche iche nwere ike ịdị mfe ijikọ ọnụ
- Enwere ike ịkpọ ihe nkiri ndị emepụtara, bipụta ya ma ọ bụ mechie ọkụ
- Obere ọdịiche dị na microstructure ihe nkiri (dịka ọmụmaatụ nkewa nke bioopolymer) na-emetụta njirimara ihe nkiri
Oge nzipu: Mar-05-2021