UJulayi uyisiqongo sehlobo, futhi phakathi nehlobo elishisayo nelinomswakama, ukudla kungaba indawo evundile yamagciwane nganoma yisiphi isikhathi.Ikakhulukazi izithelo nemifino, uma izithelo nemifino esanda kuthengwa ingagcinwa esiqandisini, ingagcinwa usuku olulodwa kuphela.Futhi njalo ehlobo, kunezimo eziningi zohudo olubangelwa "ukudla kabi", kokubili abadala kanye nezingane, ngokuvamile baphutha ngokudla "okubandayo".Eqinisweni, ukudla okunezinga lokushisa eliphansi noma iziphuzo ngempela kubangela abanye abangani ukuba babe ne-peristalsis yamathumbu ngokushesha, kodwa ngokuvamile akubangeli abantu ukuba bagijimele endlini yangasese izikhathi eziningana ngosuku.Ngakho-ke kuleli phuzu, into yokuqala okufanele icatshangelwe ukutheleleka kwamathumbu okubangelwa ukuhlanzeka kokudla.Ingabe ukudla okudliwayo kuyabola futhi kuyabola?Ngakho singazidla kanjani izithelo nemifino emisha ehlobo elishisayo?
Kuleli qophelo, into yokuqala esiyicabangayo isitoreji sefriji.Nokho, kunezinhlobo eziningi zokudla neziphuzo ezigcinwe eziqandisini, phakathi kwazo kukhona ukudla okuningi “okujova amagciwane” eziqandisini, njengamaqanda angase athwale i-salmonella, nenyama eluhlaza, izithelo nemifino engase ithwale i-Escherichia coli ebangela izifo, I-pathogenic Staphylococcus aureus kanye nama-parasites.Futhi isiqandisi sibuye sibe nempilo yeshalofu ukuze silondolozwe.Ngokuvamile, ukudla okuthatha izinsuku ezingu-2-3 kufanele kudliwe, ngaphandle kwalokho kuzobola esiqandisini ngokuhamba kwesikhathi.Ngesikhathi esifanayo, isiqandisi sibuye sibe nendawo ethile yokugcina, esetshenziselwa ukusetshenziswa kwasekhaya kuphela.Uma kuyisuphamakethe enkulu, sikugcina kanjani ukudla kukusha kubathengisi esibathengayo?
Ngokuthuthuka kokuhwebelana kwezomnotho, ukungeniswa nokuthekelisa kwezithelo nemifino sekuyinto evamile.Njengoba sibhekene nalesi simo, kufanele sifunde uhlobo olusha lwesivimbeli—isivimbeli sezithelo nemifino esiyi-1-MCP.Lapho umkhiqizo usuthuthukisiwe, wathola impendulo ephezulu.Ngoba lesi ayisilondolozi esingenabo ubuthi, esiphephe kakhulu futhi esisebenza kahle kakhulu.Okulandelayo, ake sikhulume ngezithako zesivimbeli sezithelo nemifino esiyi-1-MCP.
Iyini i-1-Methylcyclopropene?
1-Methylcyclopropene, esifushanisiwe njengokuthi 1-MCP ngesiNgisi,I-CAS 3100-04-7ifomula yamakhemikhali ithi C4H6.Ngaphansi kwezinga lokushisa elivamile nokucindezela, ukubonakala kuyigesi engenambala, ayinabo ubuthi futhi ayinambitheki, enobuningi obungu-0.838g/cm3.Kuyinhlanganisela esebenzayo yeCyclopropene.I-1-Methyl Cyclopropene isetshenziswa kakhulu njengesilawuli sokukhula kwezitshalo futhi isetshenziswa kakhulu emkhakheni wokugcinwa kwezitshalo.Inezinzuzo zokusetshenziswa okuphansi, umphumela omuhle wokulondolozwa nokuphepha okuphezulu.
Izici ze-1-MCP
I-1-MCP ingavimbela ukukhululwa kwe-ethylene yizitshalo ngokwazo, futhi iphinde ivimbele ukuboshwa kwe-ethylene kuma-receptors ahlobene kumaseli ezitshalo, ngaleyo ndlela ivimbele umphumela wokuvuthwa we-ethylene.Ngakho-ke, ukusetshenziswa kwe-1-Methylcyclopene kungandisa ngokuphumelelayo inqubo yokuvuthwa nokuguga kwezitshalo, ngaleyo ndlela kwandise impilo yabo yeshalofu, ukunciphisa inkohlakalo nokuchithwa ngesikhathi sokuthutha nokugcinwa, nokwandisa impilo yeshalofu yezimpahla.
Izicelo ze-1-MCP
1-MCPingasetshenziswa ekulondolozweni kwezithelo, imifino, nezimbali ukuvimbela ukubuna kwezitshalo.Ngokwesibonelo, uma isetshenziswa ezithelweni nemifino enjengama-apula, amapheya, amaplamu, i-kiwifruit notamatisi, ingabambezela ukuvuthwa kwazo, inciphise ukuhwamuka kwamanzi, futhi igcine ubulukhuni, ukunambitheka nokwakheka kwazo okunomsoco;Mayelana nokugcinwa kwezimbali, ingakwazi ukugcina umbala kanye nephunga elimnandi lezimbali.Ngaphezu kwalokho, i-1-Methylcyclopene ingabuye ithuthukise ukumelana nezifo zezitshalo.1-Methylcyclopenekuyingqopha-mlando entsha ekulondolozweni kwezithelo nemifino ngemva kokulondolozwa komkhathi okushintshiwe.
Ngemva kwalolu bhubhane, umnotho wasimama, futhi ukuthuthukiswa kwezohwebo emhlabeni wonke kwakukhula kancane kancane.Minyaka yonke, izwe ngalinye belikhiqiza inani elikhulu lezithelo nemifino emisha yasendaweni.Ngenxa yokuthuthukiswa okungaphelele kwezinhlelo zezolimo ezibandayo, cishe ama-85% ezithelo nemifino asebenzisa izinto ezijwayelekile, okuholele ekulahlekeni kwenani elikhulu lokubola, okubuye kwanikeza indawo yemakethe ebanzi yokukhuthazwa nokusetshenziswaI-1-methyl Cyclopropene.Ngakho-ke, kungabonakala ukuthi i-1-MCP inamathemba okuthuthukiswa okubanzi, hhayi kuphela izithelo nemifino ehlukahlukene yokuphefumula, kodwa futhi inganweba ngempumelelo isitoreji ngemuva kokuvuna kanye nempilo yeshalofu, ikakhulukazi izithelo nemifino e-ethylene ebucayi, futhi ingagcina okwangempela. izinga lezithelo nemifino isikhathi eside.
Isikhathi sokuthumela: Jul-06-2023