Iti ehlaza ikakhulu iqulethe izinto ezifana ne-ascorbic acid, i-tannins, iikhompawundi ze-polyphenolic, amafutha e-catechin kunye ne-carotenoids. Ezi zithako ziyakwazi ukuwohloka ngenxa yeoksijini, ubushushu, ukufuma, ukukhanya kunye nevumba lokusingqongileyo. Ke ngoko, xa upakisha iti, impembelelo yezi zinto zingasentla kufuneka ibe buthathaka okanye ithintelwe, kwaye iimfuno ezithile zezi zilandelayo:
Ukumelana nokufuma
Umxholo wamanzi kwi-tea akufanele udlule i-5%, kwaye i-3% iyona nto ibhetele yokugcina ixesha elide; Ngaphandle koko, i-ascorbic acid kwi-tea iya kuchithwa ngokulula, kwaye umbala, iphunga kunye nencasa yetiyi iya kutshintsha, ngakumbi kumaqondo aphezulu aphezulu. , izinga lokuwohloka liya kukhawuleziswa. Ke ngoko, izinto zokupakisha ezinobungqina bokufuma obulungileyo zinokukhethelwa ukupakishwa kobungqina bokufuma, njengeefilimu ezihlanganisiweyo ezisekwe kwifoyile ye-aluminium okanye ifilimu ephuhliweyo ye-aluminium, enobungqina bokufuma kakhulu. Ingqwalasela ekhethekileyo kufuneka ihlawulwe kunyango lobungqina bomswakama wokupakisha iti emnyama.
Ukumelana ne-oxidation
Umxholo we-oksijeni kwiphakheji kufuneka ulawulwe ngaphantsi kwe-1%. Ioksijini eninzi kakhulu iya kubangela ukuba ezinye iinxalenye zeti zibe ziwohloke ngokwe-oxidative. Umzekelo, iasidi ascorbic lula oxidized zibe deoxyascorbic acid, kwaye ngakumbi idibanisa amino acids ukuba bangene reaction pigment, nto leyo eyenza incasa yeti ibe mandundu. Kuba amanqatha eti anomthamo omkhulu we-unsaturated fatty acids, i-unsaturated fatty acids inokuthi ifakwe i-oxidized ngokuzenzekelayo ukuvelisa iikhompawundi ze-carbonyl ezifana ne-aldehydes kunye ne-ketones kunye neekhompawundi ze-enol, ezinokwenza ivumba leti linyamalale, i-astringency iba lula, kwaye umbala uba mnyama.
Ukwenza umbala
Ekubeni iti iqulethe i-chlorophyll kunye nezinye izinto, xa upakisha amagqabi eti, ukukhanya kufuneka kukhuselwe ukuthintela ukuphendula kwe-photocatalytic ye-chlorophyll kunye nezinye izinto. Ukongeza, imisebe ye-ultraviolet nayo iyinto ebalulekileyo ekubangeleni ukuwohloka kwamagqabi eti. Ukuxazulula iingxaki ezinjalo, iteknoloji yokupakisha i-shading ingasetyenziswa.
Umqobo wegesi
Ivumba elimnandi lamagqabi eti lilahleka lula, kwaye izinto ezinomoya olungileyo kufuneka zisetyenziselwe ukupakishwa kokugcina ivumba. Ukongezelela, amaqabunga eti alula kakhulu ukufunxa ivumba langaphandle, ukwenzela ukuba iphunga lamagqabi eti lisuleleke. Ngoko ke, izivumba eziveliswa ngezinto zokupakisha kunye neteknoloji yokupakisha kufuneka ilawulwe ngokungqongqo.
Ubushushu obuphezulu
Ukunyuka kweqondo lokushisa kuya kukhawulezisa ukusabela kwe-oxidation yamagqabi eti, kwaye kwangaxeshanye kuya kubangela ukuba iglosi yomphezulu wamagqabi eti iphele. Ngoko ke, amaqabunga eti afanelekile ukugcinwa kumaqondo aphantsi.
Ukupakishwa kwengxowa yefilimu ehlanganisiweyo
Okwangoku, ukupakishwa kweti ngakumbi nangakumbi kwimarike kupakishwe kuyoiingxowa zefilimu ezidibeneyo. Kukho iintlobo ezininzi zeefilimu ezidibeneyo zokupakisha iti, ezifana ne-cellophane / i-polyethylene / iphepha / i-aluminium foil / i-polyethylene, i-biaxially oriented polypropylene / i-aluminium foil / i-polyethylene, i-polyethylene / i-polyvinylidene i-chloride / i-polyethylene / i-polyethylene / i-polyethylene / i-aluminium foil / i-polyethylene, i-biaxially oriented polypropylene / i-aluminium foil / i-polyethylene, i-polyethylene / i-polyvinylidene i-chloride / i-polyethylene ine-property egqwesileyo, ukunyanzeliswa kwe-barrier, i-barrier refrance, njl. kunye ne-anti-peculiar smell. Ukusebenza kwefilimu edibeneyo kunye ne-aluminium foil iphezulu kakhulu, njenge-shading egqwesileyo kunye nokunye. Kukho iindlela ezahlukeneyo zokupakisha zeengxowa zefilimu ezidibeneyo, kubandakanya ukutywinwa kwamacala amathathu,iipogi zokuma,iingxowa zokuma ezinefestile ecacileyokunye nokusonga. Ukongeza, isikhwama sefilimu esihlanganisiweyo sinokuprintwa kakuhle, kwaye siya kuba nefuthe elikhethekileyo xa sisetyenziselwa ukuyila ukupakisha ukuthengisa.
Ixesha lokuposa: Jun-18-2022