Ethylene tuaj yeem pom nyob txhua qhov chaw. Nws muaj nyob rau hauv qee cov ntaub so ntswg thiab cov kabmob ntawm cov nroj tsuag thiab hloov dua siab tshiab thaum methionine tau txais oxygen txaus. Tau kawg, kev siv ethylene yog qhov dav heev. Fibers, roj hmab, plastics, ethanol thiab cawv tuaj yeem siv los ua cov khoom siv tshuaj lom neeg yooj yim, nrog rau cov neeg ua haujlwm ripening rau txiv hmab txiv ntoo thiab zaub. Nws kuj yog ib tsob nroj hormone. Kab lus no yuav qhia luv luv txog kev siv ethylene ua tus neeg sawv cev ripening.
1. Kev nyab xeeb ntawm ethylene:
Ntxiv nrog rau kev paub tias ethylene tuaj yeem siv los ua qee cov khoom siv tshuaj lom neeg yooj yim, nws kuj tseem cuam tshuam nrog qhov tseeb tias nws tuaj yeem siv los ua tus neeg sawv cev ripening rau txiv hmab txiv ntoo thiab zaub. Nws yog ib qho tseem ceeb uas yuav muaj qee qhov kev txhawj xeeb txog seb ethylene siv los ua tus neeg sawv cev ripening yuav ua rau muaj kev phom sij rau tib neeg lub cev. Qhov tseeb, ethylene tsis muaj teeb meem rau tib neeg lub cev thaum siv los ua txiv hmab txiv ntoo. Yog tias muaj teeb meem tiag tiag, yuav tsis muaj txoj cai zoo li no. Thaum lub sijhawm kev loj hlob, cov nroj tsuag yuav tsim cov tshuaj hu ua "ethylene", uas tuaj yeem tswj cov txheej txheem maturation ntawm cov nroj tsuag thaum lub sijhawm tsim khoom. Ua ntej cov nroj tsuag nws tus kheej tsim ethylene, ethylene tuaj yeem ntxiv dag zog, kom cov nroj tsuag yuav loj hlob sai. Ethylene nws tus kheej yog cov pa roj thiab nws tsis yooj yim rau siv roj. Tom qab ntawd, ib qho kua ethylene, kuj hu ua ethephon, tau tsim. Lub thiaj li hu ua ripening yog tiag tiag kom ceev txoj kev loj hlob thiab maturation ntawm cov nroj tsuag ua ntej. Cov tshuaj uas yuav tsis raug synthesized thaum lub sij hawm ntuj maturation txheej txheem ntawm cov nroj tsuag yuav tsis tau synthesized tom qab ripening. Yog li ntawd, txiv hmab txiv ntoo thiab zaub siav los ntawm ethylene tuaj yeem noj nrog kev ntseeg siab.
2. Ripening txoj cai:
Kev tsim cov ethylene yog qhov pib ntawm cov txiv hmab txiv ntoo ripening. Peak hom tsuas yog siv tau ua ntej lub ncov tshwm, kom lub ncov tshwm thiab ripening yog nce. Yog hais tias ethylene siv tom qab lub ncov, nws yuav tsis txhim khu kev ua pa thiab txhawb ripening. Ethylene tuaj yeem ua rau kom cov permeability ntawm cov ntaub so ntswg cell membrane, ua rau nws yooj yim dua rau mitochondria kom tau txais radon (mitochondria yog qhov chaw ua pa enzymes muaj nyob hauv hlwb), ua rau nws yooj yim rau ATP thiab ntau yam metabolites dhau, yog li ntxiv dag zog rau cov txheej txheem oxidation sab hauv. thiab txhawb kev ua pa thiab lwm yam kev ua metabolic. Tsis tas li ntawd, ethylene tuaj yeem txhawb kev sib txuas ntawm ntau cov enzymes, uas yog qhov tsim nyog rau kev hloov pauv ntawm cov organic teeb meem thiab cov xim thaum lub sij hawm txiv hmab txiv ntoo ripening thiab softening ntawm txiv hmab txiv ntoo. Yog li ntawd, ethylene txhawb lub ripening ntawm txiv hmab txiv ntoo. Txawm li cas los xij, nws tseem pom tau tias thaum citrus thiab txiv hmab txiv ntoo siav, lawv muaj feem cuam tshuam rau lwm cov tshuaj hormones, abscisic acid (ABA).
3.CO2 muaj kev sib tw inhibitory cuam tshuam rau cov nyhuv ripening ntawm ethylene:
Cov txheej txheem ntawm ethylene ripening yog suav tias yog thawj zaug khi rau cov hlau uas muaj enzyme, thiab CO2 sib tw nrog ethylene rau khi rau cov enzyme no, yog li inhibiting cov nyhuv ntawm ethylene. Tsis tas li ntawd, ethylene homologues propylene, acetylene thiab CO kuj muaj cov nyhuv ripening.
4.Yuav ua li cas saib xyuas ethylene concentration kom tsis txhob muaj kev phom sij?
Kev kuaj xyuas cov roj ethylene: Ethylene yog cov pa phem thiab cov pa phem uas yooj yim rau hauv kev tsim khoom, yog li nws yuav tsum tau siv cov cuab yeej ntsuas roj rau kev tshawb nrhiav. Ethylene detector tuaj yeem saib xyuas nws cov concentration hauv online hauv lub sijhawm 24 teev hauv ib hnub, nrog rau cov khoom tsim thiab lub suab thiab lub tswb nrov, cov lus pom zoo 4-20MA thiab RS485 cov teeb liab tso tawm, cov ntaub ntawv xa xov wireless customized, siab thiab qis lub tswb tuaj yeem ua tau. Dawb teeb, thaum cov roj concentration ntau tshaj tus qauv, nws yuav cia li tso lub tswb nrov tshaj 85dB, nruab nrog industrial-qib aluminium alloy tiv thaiv plhaub, ruaj khov thiab ruaj khov.