Kev tshawb fawbntawm kev tsim khoom, kev ua tau zoo thiab muaj peev xwm siv tau ntawm cov khoom noj khoom haus / biodegradable films hauv kev tsim khoom noj tau ua los ntawm ntau pawg tshawb fawb thoob ntiaj teb thiab tau tshaj tawm hauv cov ntawv tshawb fawb.5-9.Kev lag luam loj thiab ib puag ncig muaj peev xwm nyob hauv thaj tsam ntawm cov khoom noj tau / biodegradable films / coatings feem ntau tau ntxhov siab5, 10, 11thiab ntau cov ntawv tshaj tawm tau hais txog cov teeb meem cuam tshuam txog cov khoom siv kho tshuab, kev hloov pauv roj, thiab cov teebmeem ntawm lwm yam ntawm cov khoom no, xws li hom thiab cov ntsiab lus ntawm plasticisers, pH, txheeb ze av noo thiab kub thiab lwm yam.6, 8, 10–15.
Txawm li cas los xij,tshawb fawb rau hauv edible / biodegradable filmstseem nyob rau hauv nws cov me nyuam mos thiab kev tshawb fawb ntawm kev lag luam daim ntawv thov ntawm edible / biodegradable films tau txais kev saib ntau nyob rau hauv xyoo tas los no, txawm li cas los xij, kev pab them nqi tseem tsawg heev.
Cov kws tshawb fawb hauvPawg Khoom Noj Khoom Noj, Department of Food and Nutrition Sciences, University College Cork, Ireland, tau tsim ntau yam kev ua haujlwm, biopolymer-based, edible / biodegradable films nyob rau ob peb xyoos dhau los.
Cov kev txwv ntawm edible ntim
Feem ntau, cov yeeb yaj kiab uas siv tau tau txwv tsis pub siv feem ntau vim lawv cov yam ntxwv tsis zoo ntawm lub cev.Piv txwv li, ib leeg, lipid-raws li cov yeeb yaj kiab muaj cov khoom zoo noo noo thaiv tab sis tsis muaj zog txhua yam23.Yog li ntawd, laminated films tau tsim los ntawm adhering ob los yog ntau tshaj biopolymer films ua ke.Txawm li cas los xij, laminated films yog qhov zoo rau ib leeg, emulsion-raws li biopolymer films vim lawv muaj cov khoom thaiv kev txhim kho.Kev tsim cov qauv laminated muaj peev xwm kov yeej cov kev tsis txaus no los ntawm engineering edible / biodegradable films nrog ntau cov txheej txheem ua haujlwm.
Noj cov yeeb yaj kiab thiab txheej txheejRaws li cov dej-soluble proteins feem ntau dej-soluble lawv tus kheej tab sis muaj cov pa oxygen zoo heev, lipid thiab tsw barrier zog.Proteins ua raws li ib tug cohesive, structural matrix nyob rau hauv multicomponent systems, yielding films thiab coatings nrog zoo mechanical zog.Lipids, ntawm qhov tod tes, ua raws li cov dej noo zoo, tab sis muaj cov pa roj tsis zoo, lipid thiab tsw tsw.Los ntawm kev sib txuas cov proteins thiab lipids hauv emulsion lossis bilayer (ib daim nyias nyias uas muaj ob txheej molecular), cov yam ntxwv zoo ntawm ob qho tib si tuaj yeem ua ke thiab qhov tsis zoo.
Los ntawm kev tshawb fawb ua los ntawm covPab pawg ntim khoom nojntawm UCC, cov yam ntxwv dav dav ntawm cov khoom siv tau / biodegradable films yog raws li nram no:
- Thickness ntawm manufactured edible / biodegradable films ntau ntawm 25μm mus rau 140μm
- Cov yeeb yaj kiab tuaj yeem ua kom pom tseeb, pob tshab, thiab translucent lossis opaque nyob ntawm cov khoom xyaw siv thiab cov txheej txheem ua haujlwm.
- Kev laus ntawm cov yeeb yaj kiab tshwj xeeb nyob rau hauv kev tswj hwm ib puag ncig zoo txhim kho cov khoom siv thiab cov khoom siv roj
- Khaws cov yeeb yaj kiab ntawm qhov chaw ib puag ncig (18-23 ° C, 40- 65 ib xees RH) rau tsib xyoos tsis tau hloov cov yam ntxwv ntawm cov qauv.
- Cov yeeb yaj kiab tsim los ntawm ntau yam khoom xyaw tuaj yeem ua tau yooj yim laminated ua ke
- Cov yeeb yaj kiab uas tsim tau tuaj yeem sau npe, luam tawm lossis kaw thaum tshav kub
- Cov kev hloov me me hauv zaj duab xis microstructure (xws li biopolymer theem kev sib cais) cuam tshuam rau zaj duab xis
Post lub sij hawm: Mar-05-2021