Ebumnobi ya: ogologo ndụ nchekwa nke ihe ọhụrụ ebibiri.
Onye iro: gas ethylene nke a na-emepụta site na mkpụrụ osisi na akwụkwọ nri na-eme ka ọ ghara imebi na ire ere. Ihe ngwọta: ụzọ nkwakọ ngwaahịa ka mma na ọhụrụ
ụzọ ịchịkwa ikuku na akpa.
Ịchịkwa ikuku
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 (nkwakọ ngwaahịa ikuku gbanwere) na-ebelata ohere a na-achịkwa site na nnukwu ọnụ ụlọ, ma ọ bụ ọbụna nnukwu akpa, gaa na obere akpa.
Joe Bradford, onye njikwa nkwakọ ngwaahịa ngwaahịa kwuru, "Ikuku a gbanwere bụ naanị na nnukwu, nnukwu akpa ma ọ bụ nnukwu mkpuchi pallet. Ụlọ ọrụ Temkin International. “Ugbu a ọ dị nnọọ iche. Ugbu a, anyị na-achịkwa nkwakọ ngwaahịa dị iche iche nke enwere ike mechie hermetically. "
Akpa dị ka usoro
Inweta ogologo ndụ nchekwa pụtara ịṅa ntị na ikuku dị n'ime akpa na akpa n'onwe ya, na-ele ha anya dị ka usoro.
"Ọ na-esiri ike ịgbanwe ikuku n'ime ngwugwu n'ebughị n'uche ikike nke ngwugwu ahụ, nke nwere ike ịkpata ahia mgbe ọ na-abịa n'ịdị mfe nke ịzụ ahịa ma ọ bụ àgwà ngwaahịa," Ian Ferguson, osote onye isi oche nke Nkwakọ ngwaahịa Chantler.
N'ime afọ isii gara aga, Temkin etinyela aka na MAP na mmekorita ya na ya Windham nkwakọ ngwaahịa na onye isi sayensị ya, Elizabeth Marston. Ya na ndị ahịa Temkin na-arụkọ ọrụ iji mepụta ọkwa oxygen na carbon dioxide n'ime ngwugwu nke akọwapụtara maka mkpụrụ osisi ma ọ bụ akwụkwọ nri, mmalite ya na ebe ọ na-aga.
Bradford kwuru, "Ọ bụrụ na otu onye na-akwakọba otu paụnd nke agwa akwụkwọ ndụ akwụkwọ ndụ ọhụrụ na Guatemala na okpomọkụ nke ogo 50, onye ọzọ na-akwakọba na Pompano Beach na 55 degrees na onye ọzọ na Salinas na 46 degrees, mkpa ha ga-adịtụ iche," Bradford kwuru. . "Anyị nwere ike ịkwado (ikuku) ọ bụghị naanị maka ngwa ahịa, kamakwa ndị ahịa."
N'iji teknụzụ microperforation, a na-ebufe ikuku oxygen na carbon dioxide nke achọrọ n'ime akpa nke ọ bụla ejiri mechiri emechi site na obere oghere. Nke a na-ebelata iku ume ma gbatịa ndụ nchekwa.
Site na njikwa usoro kwesịrị ekwesị, ndụ shelf nwere ike ịgbatị izu kama ụbọchị - mgbe ụfọdụ site na 14 ruo 21 ma ọ bụ ọbụna ụbọchị 28, Bradford kwuru.
DeltaTRAK, na mmekorita ya na Chantler Packaging, emeputala usoro a na-akpọ PrimePro Ethylene Adsorption Packaging (EAP). Usoro a na-etinye mgbakwunye ozugbo n'ime ihe nkiri plastik eji ekpuchi pallets ma ọ bụ maka igbe mkpuchi nke ngwaahịa.
"Nkà na ụzụ anyị pụrụ iche na anyị na-elekwasị anya n'ịchịkwa ọkwa nke gas ethylene, ọ bụghị ịgbanwe ọkwa oxygen ma ọ bụ carbon dioxide," Ferguson kwuru. "Nke a na-enyere teknụzụ anyị aka ịrụ ọrụ na ngwa ndị na-ekwesịghị ekwesị maka nkwakọ ọnọdụ ikuku gbanwetụrụ."
At multivac, A na-emepụta ngwọta nkwakọ ngwaahịa nke ụlọ ọrụ iji gbasaa ndụ ndụ nke salads a kwadebere na ngwa salad, kwuru Bill Williams, onye njikwa ngwaahịa nke Mulivac's tray akara ngwaahịa ngwaahịa.
The T 300 inline tray sealer na-emepụta ngwugwu nke bụ "tray n'ime tray, nke nwere otu akara n'elu," Williams kwuru.
Ụdị salad nke ọ bụla nwere ngwakọta nke gas ndị a na-agbanyeghachi na ngwugwu iji mepụta ikuku gbanwetụrụ.
Uru ọzọ dị na sistemụ ahụ, yana nke na-enye aka n'ịgbatị ndụ nchekwa nke ngwaahịa, bụ ịdị mfe nke ihicha T 300, Williams kwuru.
O kwuru, sị, "Ndị ọhụrụ a kpụrụ akpụ na-enwe nchegbu, na n'ụzọ ziri ezi, na ịdị ọcha: ihicha na ịsacha akụrụngwa," ka o kwuru. "igwe a dị ọcha nke ukwuu… ma wuo ya ka a sachaa ya kpamkpam."
Nhọrọ Multivac ndị ọzọ emebere iji gbatịa ndụ shelf gụnyere nchekwa nchekwa dị elu (HPP), eji emebi microorganisms mebiri emebi; na Ọhụrụ-Nchekwa
Sistemụ nkwakọ ngwaahịa maka mmepụta ọhụrụ, nke na-eji MAP na nha nha gbanwetụrụ na ihe nkiri microperforated.