Lub hom phiaj: ncua lub neej txee ntawm cov khoom tshiab txiav.
Cov yeeb ncuab: cov roj ethylene uas ua los ntawm cov txiv hmab txiv ntoo thiab zaub uas siav ua rau lwj thiab lwj. Cov kev daws teeb meem: kev ntim khoom zoo dua thiab tshiab
txoj hauv kev los tswj cov huab cua hauv lub thawv.
Tswj huab cua
Controlling atmosphere first plays out on a larger stage. Controlled atmosphere (CA) storage of apples is commonplace in large rooms containing thousands of bushels of fruit. For other crops, such as tomatoes, ripening and ethylene release is also controlled in large rooms. However, the problem of extending shelf life from processing plant to grocery store to kitchen table — especially after the produce is cut — remains.
MAP (hloov chaw ntim ntim) txo qhov chaw tswj tau los ntawm chav loj, lossis txawm tias lub hnab loj, mus rau lub thawv me me.
Joe Bradford, tus thawj coj ntawm cov khoom ntim khoom tau hais tias "Kev hloov pauv huab cua tsuas yog muaj nyob rau hauv ntau, lub hnab loj lossis lub pallet loj," Temkin International. “Tam sim no nws txawv kiag li. Tam sim no peb tab tom tswj hwm txhua yam ntim ntim uas tuaj yeem muab ntim nrog hermetically. "
Ntim raws li systems
Kev ua tiav lub neej txee ntev dua txhais tau hais tias ua tib zoo saib rau cov cua hauv lub thawv thiab lub thawv nws tus kheej, saib lawv raws li qhov system.
"Nws yog ib qho nyuaj los hloov cov huab cua hauv ib pob yam tsis xav txog qhov permeability ntawm lub pob, uas tuaj yeem ua rau muaj kev lag luam tawm thaum nws los txog rau kev yooj yim ntawm kev muag khoom lossis cov khoom lag luam zoo," said Ian Ferguson, tus lwm thawj ntawm. Chantler Ntim.
Rau rau xyoo tas los no, Temkin tau koom nrog MAP hauv kev koom tes nrog Windham Ntim thiab nws tus thawj kws tshawb fawb, Elizabeth Marston. Nws ua haujlwm nrog Temkin cov neeg siv khoom los txhim kho qib oxygen thiab carbon dioxide hauv pob khoom tshwj xeeb rau cov txiv hmab txiv ntoo lossis zaub, nws keeb kwm thiab nws qhov chaw nyob.
"Yog tias ib tus neeg tau ntim cov taum ntsuab tshiab hauv Guatemala ntawm qhov kub ntawm 50 degrees, thiab lwm tus yog ntim hauv Pompano Beach ntawm 55 degrees thiab lwm tus hauv Salinas ntawm 46 degrees, lawv cov kev xav tau yuav txawv me ntsis," Bradford hais. . "Peb tuaj yeem tsim kho (qhov chaw) tsis yog rau cov khoom muag, tab sis kuj rau cov neeg siv khoom."
Siv tshuab microperforation, qhov xav tau ntawm cov pa oxygen thiab carbon dioxide raug xa mus rau hauv txhua lub thawv ntim hermetically los ntawm qhov qhib me me. Qhov no slows ua pa thiab ncua lub neej txee.
Nrog rau cov txheej txheem tswj kom zoo, txee lub neej tuaj yeem txuas ntxiv lub lis piam tsis yog hnub - qee zaum los ntawm 14 txog 21 lossis 28 hnub, hais tias Bradford.
DeltaTRAK, hauv kev koom tes nrog Chantler Ntim, tau tsim ib qho system hu ua PrimePro Ethylene Adsorption Packaging (EAP). Cov txheej txheem no suav nrog cov khoom ntxiv ncaj qha rau hauv cov yeeb yaj kiab yas siv los npog pallets lossis rau hauv ob sab phlu ntawm cov khoom.
Ferguson tau hais tias "Peb cov thev naus laus zis yog qhov tshwj xeeb uas peb tsom mus rau kev tswj hwm qib ntawm cov roj ethylene, tsis hloov cov pa oxygen lossis carbon dioxide," said Ferguson. "Qhov no ua rau peb cov thev naus laus zis ua haujlwm hauv cov ntawv thov uas yuav tsis tsim nyog rau kev hloov pauv huab cua ntim ib txwm muaj."
At multivac, lub tuam txhab ntim cov kev daws teeb meem yog tsim los txuas ntxiv lub neej txee ntawm cov khoom siv zaub nyoos thiab cov khoom siv zaub xam lav, hais tias Bill Williams, tus thawj tswj khoom rau Mulivac lub tais ntim khoom kab.
Tus T300 inline tray sealer tsim ib pob uas yog "lub tais hauv ib lub tais, nrog rau ib lub foob rau saum," Williams hais.
Txhua hom zaub xam lav muaj nws cov kev sib xyaw ua ke ntawm cov pa roj uas ntws rov qab rau hauv pob los tsim kom muaj qhov hloov pauv tshwj xeeb.
Lwm qhov zoo dua rau lub kaw lus, thiab ib qho uas pab txhawb nqa lub neej txee ntawm cov khoom, yog qhov yooj yim ntawm kev ntxuav T 300, Williams hais.
"Cov neeg txiav tshiab tau txhawj xeeb, thiab yog li ntawd, nrog kev tu cev: ntxuav thiab ntxuav cov cuab yeej," nws hais. "Lub tshuab yog huv heev ... thiab tsim kom huv si tag."
Lwm cov kev xaiv Multivac tsim los ua kom ntev txee lub neej muaj xws li high-pressure preservation (HPP), siv los rhuav tshem cov kab mob spoilage; thiab Fresh-SAFE
packaging system rau cov khoom tshiab, uas siv MAP thiab equilibrium hloov huab cua ntim daim duab rau ntawm microperforated zaj duab xis.