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1-Methylcyclopropene(ifinyeziwe njenge-1-MCP) I-CAS 3100-04-7, i-molecule encinci ene-cyclic structure kwaye isetyenziswa ngokubanzi kwintsimi yokugcinwa kwemveliso yezolimo ngenxa yendima yayo ekhethekileyo kulawulo lwezityalo.

I-1-Methylcyclopropene (i-1-MCP) i-compound enendlela ekhethekileyo yokwenza kwaye inezicelo ezibalulekileyo kwiinkalo ezininzi, ngakumbi kwezolimo kunye nokugcinwa kokutya. Ezi zilandelayo zezona zicelo ziphambili kunye neenkcukacha ezinxulumene nazo:

Intsimi yezolimo kunye nokugcinwa kweziqhamo

1. Ukuthintela umphumo we-ethylene kwaye wandise ixesha lokutsha kweziqhamo

Umgaqo-nkqubo wesenzo: I-ethylene yi-hormone ephambili yokuvuthwa kunye ne-senescence yeziqhamo zezityalo. I-1-MCP inokubophelela ngokungenakuguquleka kwi-ethylene receptors, ithintele ukuhanjiswa komqondiso we-ethylene, kwaye ngaloo ndlela ilibazise ukuvuthwa, ukuthamba kunye neenkqubo zesenescence yeziqhamo.

Iimeko zesicelo:

Ukugcinwa kweziqhamo ezahlukahlukeneyo: njengama-apile, amapere, iibhanana, i-kiwis, imango, i-strawberries, njl. Umzekelo, ukuba ii-apile ziphathwa nge-1-MCP emva kokuvuna, kunokwandisa kakhulu ubomi beshelufu kwifriji okanye ubushushu begumbi, kunye nokugcina ukuqina kunye nokuqina kwenyama.

Lawula izifo eziphila emva kokuvuna: Nciphisa iingxaki ezifana neBrowning kunye nokubola kweziqhamo okubangelwa yi-ethylene (efana nesifo samachaphaza amnyama kwiibhanana).

Iingenelo: Xa kuthelekiswa nezinto ezifunxa iethylene eziqhelekileyo (ezifana nepotassium permanganate),1-MCPinesiphumo esihlala ixesha elide nesisebenzayo, kwaye ifuna idosi esezantsi (idla ngokuba ziippm ezimbalwa).

2. Ukulawula ukuguga kweentyatyambo kunye nezityalo zokuhombisa

Isetyenziswa ekugcinweni kweentyatyambo ezisikiweyo: Yandisa ubomi bevase yeentyatyambo ezisikiweyo ezinje ngeerozi, iicarnations kunye neenyibiba, kwaye ulibazise ukubuna kunye nokubuna kweepetals.

Ulawulo lwezityalo ezifakwe kwimbiza: Thintela ukuguga kwangaphambi kwexesha kwezityalo zokuhombisa zangaphakathi (ezifana ne-Phalaenopsis) kwaye ugcine ukumila kwesityalo esinomtsalane.

ULimo lwezitiya kunye neNdawo yokuLima iziTyalo

1. Lawula ukukhula nophuhliso lwezityalo

Ukulibazisa ukuguga kwemifuno: Isetyenziselwa unyango emva kokuvunwa kwemifuno efana ne-broccoli kunye ne-lettuce ukugcina umbala wabo oluhlaza we-emerald kunye nokutsha.

Ukulawula ukungaguquguquki kokuvuthwa kwesityalo: Ekulinyweni kweziqhamo ezifana neetumato kunye neepepile, unyango lwe-1-MCP luyamkelwa ukwenza ukuvuthwa kweziqhamo kufane, kuququzelele ukuvunwa okuphakathi kunye nokulungiswa.

2. Ukunciphisa iimpendulo zoxinzelelo lwezityalo

Ukomelezwa kokumelana noxinzelelo: Ngaphantsi kwezothutho okanye uxinzelelo lokusingqongileyo (njengamaqondo aphezulu okanye aphantsi), kunciphisa impendulo yoxinzelelo eyenziwa yi-ethylene kwizityalo, kwaye iyancipha iqabunga eliphuzi kunye nokulahla.

Ezinye izicelo ezinokwenzeka

1. Unyango lwangaphambili kwishishini lokutya

I-1-Methylcyclopropene isetyenziselwa ukugcinwa kweziqhamo ezitsha (ezifana ne-apple slices kunye ne-pear chunks), ukulibazisa i-oxidation kunye ne-Browning, kunye nokwandisa ubomi beshelufu.

2. Uphando lwezenzululwazi kunye nophando lovavanyo

Njengesixhobo sekhompawundi sokufunda indlela yokusebenza kwe-ethylene, isetyenziswa kwifiziyoloji yezityalo kunye novavanyo lwebhayoloji yemolekyuli ukuphonononga indlela yokulawula indlela yokubonisa i-ethylene.

Izilumkiso zokuSebenzisa

Ngexesha:1-Methylcyclopropenekufuneka isetyenziswe phambi kokukhululwa kwe-ethylene kwisiqhamo okanye kwisityalo (njengoko ngokukhawuleza emva kokukha) ukwenzela isiphumo esihle. Ukuba isiqhamo singene kwinqanaba lokugqibela lokuvuthwa, umphumo wonyango uya kuncipha.

Ulawulo lwedosi: Izityalo ezahlukeneyo zine-sensitito eyahlukileyo kwi-1-Methylcyclopropene 1-MCP (umzekelo, uhlobo lokutshintshwa kwesiqhamo lunovakalelo ngakumbi). Ukugxininiswa kwesicelo kufuneka kulungiswe ngokweentlobo ezahlukeneyo ukuze kugwenywe incasa yesiqhamo esingaqhelekanga esibangelwa yi-dosage egqithisileyo (njenge "powderization" yama-apula).

Iimeko zokusingqongileyo: Unyango kufuneka lwenziwe kwindawo evaliweyo (efana negumbi lokugcina umoya olawulwayo okanye iingxowa zeplastiki), njengoko ubushushu kunye nokufuma kunokuchaphazela i-adsorption kunye nokusebenza kakuhle kwe-1-MCP.

Ukuza kuthi ga ngoku, ndicinga ukuba wonke umntu uya kube ewuqwalasele umbuzo omnye:

Ngaba ukusetyenziswa kwe-1-methylcyclopropene kuyingozi kumzimba womntu?

I-1-methylcyclopropene ayinabungozi kumzimba womntu phantsi kweemeko zokusetyenziswa ezifanelekileyo, kwaye ukhuseleko lwayo luye lwaqatshelwa ngamaziko agunyazisiweyo ngamazwe. Nokuba yityhefu ebukhali, iziphumo zezempilo zexesha elide okanye iingozi ezishiyekileyo, zonke zikwindawo eyamkelekileyo. Abathengi abanakukhathazeka xa besebenzisa iimveliso zezolimo eziphathwe nge-1-MCP, kwaye abasebenzisi kufuneka balandele iinkqubo zokhuseleko ukuphepha umngcipheko wokuvezwa emsebenzini. Olona ncedo luphambili lobu bugcisa buxhomekeke ekwandiseni ixesha lokutsha kwemveliso yezolimo ngeendlela zenzululwazi kunokwazisa ubungozi obunokubakho.

Ixabiso eliphambili le-1-methylcyclopropene lilele ekulawuleni ngokuchanekileyo iziphumo ze-physiological ye-ethylene ukufezekisa ukugcinwa kwemveliso yezolimo kunye nokulawulwa kokukhula kwezityalo. I-1-methylcyclopropene iye yaba yindlela ebalulekileyo yobugcisa yonyango emva kokuvuna kwezolimo zanamhlanje, ngakumbi ukuba neenzuzo ezibalulekileyo ekwandiseni ubomi beshelufu kunye nokuphucula umgangatho weziqhamo kunye neentyatyambo. Ngokukodwa ehlotyeni, indawo yokushisa ephezulu kunye nomswakama ophezulu ehlotyeni inokukhawuleza ukukhawuleza ukuchithwa kweziqhamo. Ulondolozo lwezenzululwazi lufuna ukuqulunqwa kwezicwangciso ngokudibanisa neempawu zeziqhamo kunye nemiba yokusingqongileyo.

Ngokukodwa ehlotyeni, indawo yokushisa ephezulu kunye nomswakama ophezulu ehlotyeni inokukhawuleza ukukhawuleza ukuchithwa kweziqhamo. Ulondolozo lwezenzululwazi lufuna ukuqulunqwa kwezicwangciso ngokudibanisa neempawu zeziqhamo kunye nemiba yokusingqongileyo. Siyingcali1-methylcyclopropene ababoneleli. I-1-MCP powder lukhetho oluhle kuwe.