ozi

1. Dynamic Evolution of Nitrite

N'iji spectrophotometry iji nyochaa usoro ịgba ụka ahụ, nnwale ahụ gosipụtara njirimara "mgbagọ elu okpukpu abụọ" na ọdịnaya nitrite. N'ime oge mbụ (awa 0-24), nje bacteria na-ebelata nitrate na-agbanwe ngwa ngwa nitrates na akwụkwọ nri ka ọ bụrụ nitrite, na-agbapụta ọkwa ruo 48 mg / kg. N'ime oge nke abụọ (ụbọchị 3-5), mmụba nke nje bacteria lactic acid ji nwayọọ nwayọọ mebie nitrite, na-eweghachi ọkwa na nso nso. N'ụzọ doro anya, ọ bụla 5 Celsius C na-abawanye na ọnọdụ okpomọkụ na-eme ngwa ngwa guzobe elu site na awa 12-18.

Ntụnyere na kimchi azụmahịa gosipụtara na mmepụta ụlọ ọrụ mmepụta ihe, site na njikwa ziri ezi nke ọnọdụ (1.5%-2.5% salinity, 15-20 ° C), na-amachi ọnụ ahịa nitrite n'okpuru 32 mg / kg. N'ụzọ dị iche, kimchi arụrụ n'ụlọ, na-enwekarị njikwa okpomọkụ, na-agafe 40 mg/kg, na-egosi nnukwu ihe ize ndụ nchekwa na omume ezinụlọ.

2. Ihe njikwa dị egwu

Ntinye nnu na-ekere òkè dị mkpa na nguzozi microbial. Na salinity n'okpuru 1%, nje bacteria na-akpata ọrịa na-ebelata nitrate na-eto eto, na-eme ka ọnụ ọgụgụ nitrite dị elu na mbụ. Nnwale ahụ chọpụtara salinity 2.5% dị ka nguzozi kachasị mma, na-egbochi nje bacteria na-emerụ ahụ nke ọma ma na-akwado metabolism nke lactic acid.

Ịhazi okpomọkụ dịkwa oke mkpa. Ịgba mmiri na 20 Celsius C gosipụtara ọrụ microbial kachasị kwụsiri ike. Okpomọkụ dị n'elu 25ºC na-eme ngwa ngwa gbaa ụka mana ọ na-abawanye ihe egwu enweghị aha microbial, ebe n'okpuru 10 Celsius gbatịpụrụ oge nchekwa ruo ihe karịrị ụbọchị 20. Maka gbaa ụka n'ụlọ, a na-atụ aro njikwa ọnọdụ okpomọkụ: 18-22 Celsius C maka ụbọchị 3 mbụ, na-esote refrigeration.

Ngwọta ngwa ngwa na-emetụta nsonaazụ. Kabeeji na-ekpo ọkụ maka sekọnd 30 belatara ọdịnaya nitrate mbụ site na 43%, na-eweda ọnụ ọgụgụ nitrite ikpeazụ site na 27%. Ịtinye ihe ndị nwere vitamin C bara ụba (dịka ọmụmaatụ, chili ọhụrụ ma ọ bụ iberi lemon) na-ebelata ọnụ ọgụgụ kasị elu site na 15%-20%.

3. Nchekwa oriri Strategies

Dabere na data nnwale, usoro iheomume nke gbaa ụka nwere ike kewaa ụzọ atọ:

Oge ihe egwu (ụbọchị 2-5):Ọkwa nitrite gafere ọkọlọtọ nchekwa China (20 mg/kg) ugboro 2–3. A ghaghị izere iri nri.

Oge mgbanwe (ụbọchị 6-10):Ọkwa nke nta nke nta na-agbada ruo nso nso nchekwa.

Oge nchekwa (mgbe ụbọchị 10 gasịrị):Nitrite kwụsiri ike n'okpuru 5 mg/kg, e weere na ọ dị mma maka oriri.

Usoro kachasị mmanwere ike ibelata ihe egwu:

Usoro nnu nke gradient (2.5% salinity mbụ, mụbara ruo 3% mgbe e mesịrị) jikọtara ya na inoculating 5% agadi brine na-ebelata oge ihe egwu ahụ ruo awa 36.

Na-akpali akpali mgbe nile iwebata oxygen kwalitere ire ere nitrite site na 40%.

Maka ikpughe nitrite dị elu na mberede, ụzọ mgbazigharị gosipụtara dị irè:

Ịgbakwunye 0.1% vitamin C ntụ ntụ maka awa 6 belatara nitrite site na 60%.

Ịgwakọta galik ọhụrụ (3% n'ịdị arọ) nwetara nsonaazụ yiri nke ahụ.

Ọmụmụ ihe a na-akwado na ihe egwu dị n'ime nri esiri esi eme n'ụlọ bụ ihe a na-ahụ anya ma nwee ike ịchịkwa ya. Site n'ịghọta mgbanwe nitrite na mmejuputa njikwa ziri ezi - dị ka idowe salinity 2.5%, njikwa ọnọdụ okpomọkụ, na pretreatmenting - ndị na-eri nri nwere ike ịnụ ụtọ nri fermented ọdịnala n'enweghị nsogbu ọ bụla. A na-adụ ọdụ idobe "akwụkwọ ndekọ ọnụ mmiri" iji hụ ọnọdụ okpomọkụ, oge, na ihe ndị ọzọ, na-agbanwe omume kichin ka ọ bụrụ usoro mmụta sayensị, nke maara ihe egwu.