Kua tae mai te raumati, ā, ko te mea tino pōhēhē mō te katoa ko te tiaki i te kai. Kua noho hei kaupapa wera te whakarite kia hou tonu te kai i ēnei rā. Nō reira, me pēhea tā tātou penapena i ngā hua me ngā huawhenua hou i te aroaro o tēnei raumati wera? I roto i tēnei āhuatanga, i ngā tau tata nei, kua kitea e ngā rangahau pūtaiao tētahi aukati whai hua i te mahi ethylene -1-MCP. Ehara i te mea he kore paitini te aukati 1-MCP, he kore kino, he kore para, he pai hoki mō te taiao, engari he whānuitia hoki te whakamahinga mō te tiaki i ngā hua, huawhenua, me ngā putiputi. Kei raro nei, ka whakamāramahia e mātou ngā taipitopito motuhake o te hua 1-MCP.
He aha te 1-MCP?
1-MCP, e mōhiotia ana ko te 1-Methylcycloprotene,CAS 3100-04-7He aukati ethylene whai hua te 1-MCP e taea ai te aukati i te raupapa o ngā tauhohenga ā-tinana me te matū koiora e pā ana ki te maoa o ngā hua i puta mai i te ethylene, te aukati i te kaha o te manawa o ngā tipu, te whakaroa i te maoa me te koroheketanga o ngā hua, te pupuri i te āhua me te kounga taketake o ngā hua me ngā huawhenua mō te wā roa, te whakaiti i te mimiti wai, te whakaiti i ngā kino mate me te pirau moroiti, hei pupuri i te kounga rokiroki o ngā hua. Ā, kāore he paitini, kāore hoki he toenga o te 1-MCP, e tutuki ana i ngā tohu maha o ngā taputapu tiaki hua ā-motu, ā, ka taea te whakamahi me te maia.
Ngā whakatakotoranga 1-MCP
| CAS | 3100-04-7 | |
| Ingoa | ||
| Kupu ōrite | 1-Methylcyclopropene,1-MCP;Methylcyclopropen; 1-Methylcyclopropen (1-MCP); Te tiaki hou mō ngā hua1-methylecyclopropene | |
| MF | ||
| Taonga | Paerewa
| Hua |
| Āhua | Paura Tata Ma | Tohunga |
| Whakamātautau（%） | ≥3.3 | 3.6 |
| Te Parakore（%） | ≥98 | 99.9 |
| Ngā poke | Kāore he poke nui | Kāore he poke nui |
| Makuku （%） | ≤10.0 | 5.2 |
| Pungarehu（%） | ≤2.0 | 0.2 |
| Wairewa | I whakarewahia katoatia te 1 karamu o te tauira ki roto i te 100 karamu o te wai | Kua rewa katoa |
Tono 1-MCP
I mua i te whakamahinga o te 1-MCP, ko te nuinga o ngā tikanga tiaki tinana me te tiaki i whakamahia: 1. te whakamatao i te pāmahana iti, 2. te rokiroki ā-haurangi whakahaere, me te 3. te whakamahana, te mārama, me te maimoatanga ngaruiti. Heoi, he nui te tangata me ngā rauemi e hiahiatia ana mō ēnei tikanga e toru, ā, he roa, he poto hoki te wā. Kua whakaatuhia e ngā rangahau ka taea e te 1-MCP te whakataetae pai ki te here ki ngā kaiwhakawhiwhi ethylene, ka whakaroa i te maoa me te koroheketanga o ngā hua. Nā ōna āhuatanga kore-paitini, he iti te whakamahinga, he teitei te whai huatanga, me ngā āhuatanga matū pumau, kei te whakamahia whānuitia i tēnei wā i roto i te rokiroki hua me ngā huawhenua, me te tere o te whakamahinga me te whakatairanga i te mākete.
Ehara i te mea ka ārai, ka whakaroa rānei te 1-MCP i te koroheketanga ā-tinana o ngā tipu, engari he iti anō hoki te paitini. Ko te LD50>5000mg/kg he matū kore-paitini; he tino iti te kukū e whakamahia ana, ā, i te tukatuka i ngā hua, huawhenua, me ngā putiputi, ko te kukū i te hau me kotahi miriona noa iho, nō reira he iti rawa te toenga o ngā hua, huawhenua, me ngā putiputi i muri i te whakamahinga, kāore e taea te kite; kua paahitia hoki e te 1-MCP te tirotiro a te US Environmental Protection Agency (pānui paetukutuku EPA) ā, e kiia ana he haumaru, he kore-paitini, he pai mō te whakamahi i roto i ngā putiputi me ngā hua me ngā huawhenua, ā, he haumaru hoki mō te tangata, mō ngā kararehe, me te taiao. Kāore he take ki te whakatū i ngā here horopeta i te wā e whakamahia ana.
He aha te tirohanga mākete mō te 1-MCP?
Mō ngā whenua ahuwhenua, he nui ngā hua me ngā huawhenua hou e whakaputaina ana i ia tau. Nā te koretake o te whanaketanga o ngā mahi kawe hua matao mō ngā hua ahuwhenua, tata ki te 85% o ngā hua me ngā huawhenua e whakamahi ana i ngā mahi kawe noa, ā, he nui te pirau me te ngaronga. Mā tēnei ka whakaratohia he wāhi mākete whānui mō te whakatairanga me te whakamahi i te 1-methylcyclopropene. E whakaatu ana ngā hua rangahau ka taea e te 1-methylcyclopropene te whakaiti i te ngawari me te pirau o ngā hua me ngā huawhenua, me te whakaroa i te roa o te wā rokiroki me te wā e rongoa ai. Ko te mutunga tēnei o te whakaurunga o1-MCP. Ki te hiahia koe ki te mōhio atu mō te hua, waiho mai he karere.
Wā tuku: Pipiri-01-2023