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Chikunguru ndicho chapamusoro chezhizha, uye munguva yekupisa nekunyorova kwechirimo, chikafu chinogona kuva svikiro rakaorera remabhakitiriya chero nguva. Kunyanya michero nemiriwo, kana zvichangobva kutengwa michero nemiriwo zvisina kuchengetwa mufiriji, zvinogona kuchengetwa kwezuva rimwe chete. Uye zhizha rega rega, kune zviitiko zvakawanda zvemanyoka zvinokonzerwa ne "kudya zvisina kunaka", vose vakuru nevana, vanowanzokanganisa kudya "kutonhora". Muchokwadi, chikafu chepasi-tembiricha kana zvinwiwa zvinoita kuti dzimwe shamwari dzive nekukurumidza intestinal peristalsis, asi kazhinji hazvikonzerese kuti vanhu vamhanyire kuchimbuzi kakawanda pazuva. Saka panguva ino, chinhu chekutanga chekufunga nezvechirwere chemukati chinokonzerwa nehutsanana hwekudya. Chikafu chinodyiwa chiri kuora uye kupera here? Saka tingadya sei michero nemiriwo mitsva muzhizha rinopisa?

Panguva ino, chinhu chekutanga chatinofunga nezvekuchengetedza firiji. Zvisinei, kune marudzi akawanda ezvokudya uye zvinwiwa zvakachengetwa mufiriji, pakati pazvo pane zvokudya zvakawanda “zvinopinza mabhakitiriya” mufiriji, zvakadai samazai anogona kutakura salmonella, uye nyama mbishi, michero nemiriwo inogona kutakura pathogenic Escherichia coli, pathogenic Staphylococcus aureus uye zvipembenene. Uye firiji inewo hupenyu hwesherufu hwekuchengetedza. Kazhinji, chikafu chinotora mazuva 2-3 chinofanira kudyiwa, kana zvisina kudaro chichaora mufiriji nekufamba kwenguva. Panguva imwecheteyo, firiji inewo imwe nzvimbo yekuchengetedza, iyo inoshandiswa chete kushandiswa kweimba. Kana iri chitoro chikuru, tinochengeta sei chikafu chiri chitsva kubva kune vatengesi vatinotenga?

Nekuvandudzwa kwekudyidzana kwepasi rose kwehupfumi, kupinza uye kutumira kunze kwemichero nemiriwo kwave kujaira. Tichitarisana nemamiriro ezvinhu aya, tinofanira kudzidza rudzi rutsva rwekuchengetedza—1-MCP michero nemiriwo inochengetedza. Kamwe chigadzirwa chacho chakagadzirwa, chakagamuchira mhinduro yakakwirira. Nekuti iyi haina chepfu, yakachengeteka zvakanyanya, uye inoshanda zvakanyanya kuchengetedza. Tevere, ngatitaurei nezve zvinongedzo zve1-MCP michero nemiriwo inochengetedza.

Chii chinonzi 1-Methylcyclopropene?

1-Methylcyclopropene, yakadimburirwa se1-MCP muChirungu,CAS 3100-04-7makemikari formula ndeye C4H6. Pasi petembiricha yakajairwa uye kumanikidzwa, chitarisiko chisina ruvara gasi, chisina chepfu uye chisingarapike, chine density ye0.838g/cm3. Iyo inonyanya kushanda Cyclopropene komboni. 1-Methyl Cyclopropene inonyanya kushandiswa semugadziri wekukura kwechirimwa uye inoshandiswa zvakanyanya mumunda wekuchengetedza zvirimwa. Iine zvakanakira kushandiswa kwakaderera, yakanaka kuchengetedza maitiro uye kuchengetedzwa kwepamusoro.

Hunhu hwe1-MCP

1-MCP inogona kutadzisa kuburitswa kwe ethylene nemiti pachayo, uye zvakare ichivharira kusungwa kwe ethylene kune yakabatana receptors mumasero ezvirimwa, nekudaro ichitadzisa kuibva kwe ethylene. Nokudaro, kushandiswa kwe1-Methylcyclopene kunogona kunyatsowedzera kukura uye kuchembera kwemiti, nokudaro kuwedzera mararamiro avo esherufu, kuderedza uori uye tsvina panguva yekufambisa uye kuchengetedza, uye kuwedzera hupenyu hwesherufu yezvigadzirwa.

Zvikumbiro zve1-MCP

1-MCPinogona kushandiswa pakuchengetedza michero, miriwo, uye maruva kudzivirira chirimwa kusvava. Somuenzaniso, kana ikaiswa kumichero nemiriwo yakaita semaapuro, mapeya, mapuranga, kiwifruit, uye matomatisi, inogona kunonoka kuibva, kuderedza kunyungudika kwemvura, uye kuchengeta kuoma kwazvo, kuravira, uye kuumbwa kwezvokudya; Mukutaura kwekuchengetedza maruva, inogona kuchengetedza ruvara uye kunhuhwirira kwemaruva. Mukuwedzera, 1-Methylcyclopene inogonawo kuvandudza zvirwere zvezvirimwa.1-Methylcyclopeneidanho idzva rekuchengetedza michero nemiriwo mushure mekuchengetedzwa kwemhepo.

Mushure medenda, hupfumi hwakatangazve, uye kusimukira kwekutengeserana kwenyika kwakawedzera zvishoma nezvishoma. Gore rimwe nerimwe, nyika imwe neimwe yaibudisa nhamba huru yemichero nemiriwo zvomunzvimbomo. Nekuda kwekusakwana kwekusimudzira kwekurima inotonhora cheni Logistics, inenge 85% yemichero nemiriwo yakashandisa zvakajairwa zvinhu, zvichikonzera kurasikirwa kukuru kwekuora, izvo zvakapawo nzvimbo yakakura yemusika yekusimudzira nekushandisa.1-methyl Cyclopropene. Naizvozvo, zvinogona kuonekwa kuti 1-MCP ine tarisiro yakakura yebudiriro, kwete chete kune akasiyana siyana ekufema climacteric michero nemiriwo, asi zvakare anogona zvinobudirira kuwedzera mushure mekukohwa chengetedzo uye pasherufu hupenyu, kunyanya kune ethylene inonzwira tsitsi michero nemiriwo, uye inogona kuchengetedza yepakutanga. kunaka kwezvibereko nemiriwo kwenguva yakareba.