nkhani

Chilimwe chafika, ndipo chinthu chosokoneza kwambiri kwa aliyense ndicho kusunga chakudya. Momwe mungatsimikizire kutsitsimuka kwa chakudya kwakhala nkhani yofala masiku ano. Ndiye kodi tingasunge bwanji zipatso ndi ndiwo zamasamba m’chilimwe chotentha chonchi? Poyang'anizana ndi izi, m'zaka zaposachedwa, kafukufuku wasayansi wapeza choletsa chothandiza cha ethylene action -1-MCP. 1-MCP inhibitor sikuti ndi poizoni, yopanda vuto, yopanda zotsalira, komanso yosamalira zachilengedwe, komanso imagwiritsidwa ntchito kwambiri poteteza zipatso, ndiwo zamasamba, ndi maluwa. Pansipa, tikuwonetsa zambiri zamtundu wa 1-MCP.

1-MCP ndi chiyani?

1-MCP, yomwe imadziwikanso kuti 1-methylcycloprotene,Chithunzi cha CAS 3100-04-7. 1-MCP ndi ethylene inhibitor yogwira mtima yomwe imatha kulepheretsa zochitika zingapo zakuthupi ndi zamankhwala zokhudzana ndi kucha kwa zipatso zomwe zimayambitsidwa ndi ethylene, kuletsa kupuma kwa mbewu, kuchedwetsa kupsa kwa zipatso ndi kukalamba, kukhalabe ndi mawonekedwe apachiyambi ndi mtundu wa zipatso ndi ndiwo zamasamba. kwa nthawi yayitali, kuchepetsa kutuluka kwa madzi, kuchepetsa kuwonongeka kwa tizilombo toyambitsa matenda ndi kuwonongeka kwa tizilombo toyambitsa matenda, Kusunga khalidwe losungirako chipatso. Ndipo 1-MCP ndi yopanda poizoni komanso yopanda zotsalira, ikukumana ndi zizindikiro zosiyanasiyana zotetezera mavidiyo a dziko, ndipo ingagwiritsidwe ntchito molimba mtima.

1-MCP mfundo

1-MCP ntchito

Asanayambe kugwiritsira ntchito 1-MCP, njira zambiri zotetezera thupi ndi kusungirako zinavomerezedwa: 1. firiji yotsika kutentha, 2. kusungirako mlengalenga, ndi 3. kutentha, kuwala, ndi chithandizo cha microwave. Komabe, njira zitatuzi zimafuna anthu ambiri ogwira ntchito ndi zothandizira, ndipo nthawi ndi yaitali komanso yochepa. Kafukufuku wasonyeza kuti 1-MCP imatha kupikisana kuti igwirizane ndi ethylene receptors, kuchedwetsa kucha kwa zipatso ndi kukalamba. Chifukwa cha zinthu zake zopanda poizoni, kugwiritsa ntchito pang'ono, kuchita bwino kwambiri, komanso kukhazikika kwamankhwala, kumagwiritsidwa ntchito kwambiri posungira zipatso ndi ndiwo zamasamba, ndikugwiritsa ntchito kwambiri msika komanso kutsatsa.

1-MCP sikuti imangolepheretsa kapena kuchedwetsa kukalamba kwa thupi muzomera, komanso imakhala ndi kawopsedwe kochepa. LD50>5000mg/kg kwenikweni si mankhwala; Kuphatikizika komwe kumagwiritsidwa ntchito kumakhala kotsika kwambiri, ndipo pokonza zipatso, ndiwo zamasamba, ndi maluwa, kuchuluka kwa mlengalenga kumangofunika miliyoni imodzi, kotero kuti zotsalira za zipatso, ndiwo zamasamba, ndi maluwa zikagwiritsidwa ntchito zimakhala zotsika kwambiri kotero kuti sizingadziwike. ; 1-MCP yadutsanso kuyendera bungwe la US Environmental Protection Agency (chilengezo cha webusaiti ya EPA) ndipo ikuwoneka kuti ndi yotetezeka komanso yopanda poizoni, yoyenera kugwiritsidwa ntchito mu maluwa ndi zipatso ndi ndiwo zamasamba, komanso yotetezeka kwa anthu, nyama, ndi chilengedwe. Palibe chifukwa chokhazikitsa zoletsa pakugwiritsa ntchito.

Kodi msika wa 1-MCP ukuwoneka bwanji?

Kwa mayiko aulimi, zipatso ndi ndiwo zamasamba zambiri zimapangidwa chaka chilichonse. Chifukwa chakukula kopanda ungwiro kwa zinthu zaulimi, pafupifupi 85% ya zipatso ndi ndiwo zamasamba zimagwiritsa ntchito zinthu wamba, zomwe zimapangitsa kuwonongeka kwakukulu ndi kuwonongeka. Izi zimapereka malo amsika otakata kuti akweze ndikugwiritsa ntchito 1-methylcyclopropene. Zotsatira zafukufuku zimasonyeza kuti 1-methylcyclopropene ikhoza kuchepetsa kwambiri kufewetsa ndi kuwonongeka kwa zipatso ndi ndiwo zamasamba, ndikuwonjezera moyo wawo wa alumali ndi nthawi yosungirako. Izi zikumaliza kutsegulira kwa1-MCP. Ngati mukufuna kudziwa zambiri za mankhwalawa, chonde ndisiyireni uthenga.