litaba

1. Phetoho e Matla ea Nitrite

E sebelisa spectrophotometry ho tsoela pele ho beha leihlo tšebetso ea ho belisoa, teko e ile ea senola tšobotsi ea "double-peak curve" ka har'a litaba tsa nitrite. Nakong ea pele (lihora tse 0-24), libaktheria tse fokotsang nitrate li ile tsa fetola ka potlako nitrate meroho ho ea ho nitrite, litekanyetso tsa spiking ho 48 mg / kg. Karolong ea bobeli (matsatsi a 3-5), ho ata ha libaktheria tsa lactic acid butle-butle ho ile ha bola nitrite, ho khutlisetsa maemo libakeng tse sireletsehileng. Haholo-holo, keketseho e 'ngoe le e 'ngoe ea 5 ° C ea mocheso oa tikoloho e potlakisa sebopeho sa tlhōrō ka lihora tse 12-18.

Ho bapisoa le kimchi ea khoebo ho bontšitse hore tlhahiso ea indasteri, ka taolo e nepahetseng ea maemo (1.5% -2.5% salinity, 15-20 ° C), e fokotsa litlhōrō tsa nitrite ho tlase ho 32 mg / kg. Ka lehlakoreng le leng, kimchi e entsoeng lapeng, eo hangata e haelloang ke taolo ea mocheso, e lula e feta 40 mg / kg, e bontšang likotsi tse phahameng tsa tšireletso mekhoeng ea malapa.

2. Lintlha tse Bohlokoa tsa Taolo

Matsoai a letsoai a phetha karolo ea bohlokoa ho leka-lekana ha likokoana-hloko. Ha letsoai le le ka tlase ho 1%, libaktheria tsa pathogenic le tse fokotsang nitrate lia atleha, tse bakang litlhōrō tsa pejana le tse phahameng tsa nitrite. Teko e bonts'itse 2.5% ea letsoai e le tekanyo e nepahetseng, e hatellang libaktheria tse kotsi ha e ntse e tšehetsa metabolism ea baktheria ea lactic acid.

Taolo ea mocheso le eona e bohlokoa. Ho belisoa ho 20°C ho bontšitse ts'ebetso e tsitsitseng ea likokoana-hloko. Lithempereichara tse ka holimo ho 25°C li potlakisitse ho belisoa empa li ile tsa eketsa likotsi tsa ho se leka-lekane ha likokoana-hloko, ha ka tlaase ho 10°C ho atolosoa nako ea tšireletso ho feta matsatsi a 20. Bakeng sa ho belisoa lapeng, ho khothalletsoa ho laola mocheso ka mekhahlelo: 18-22 ° C matsatsing a pele a 3, ebe o lateloa ke sehatsetsi.

Phekolo ea pele ea motsoako e ama liphello haholo. Khabeche ea blanching ka metsotsoana e 30 e fokolitse boleng ba nitrate ea pele ka 43%, e theola tlhoro ea ho qetela ea nitrite ka 27%. Ho eketsa metsoako e nang le vithamine C e ngata (mohlala, lilae tsa chilisi tse foreshe kapa sirilamunu) ho boetse ho fokotsa tlhoro ka 15% -20%.

3. Maano a Tšireletsehileng a Tšebeliso

Ho latela lintlha tsa liteko, nako ea ho belisoa e ka aroloa ka mekhahlelo e meraro:

Nako ea kotsi (matsatsi a 2-5):Maemo a nitrite a feta tekanyetso ea tšireletso ea Chaena (20 mg/kg) ka makhetlo a 2-3. Tšebeliso e tlameha ho qojoa.

Nako ea phetoho (matsatsi a 6-10):Maemo a fokotseha butle-butle ho ea libakeng tse haufi le tse sireletsehileng.

Nako ea polokeho (kamora letsatsi la 10):Nitrite e tsitsitse ka tlase ho 5 mg/kg, e nkoang e bolokehile hore e ka sebelisoa.

Mekhoa e ntlafalitsoenge ka fokotsa likotsi:

Mokhoa oa ho noa letsoai (2.5% ea letsoai la pele, o eketsehile ho 3% hamorao) o kopantsoe le ente ea 5% ea khale e khutsufatsa nako ea kotsi ho lihora tse 36.

Ho hlohlelletsa khafetsa ho hlahisa ho bola ho matlafalitsoeng ke nitrite ka 40%.

Bakeng sa ho pepeseha ha nitrite ka phoso, mekhoa ea ho lokisa e ipakile e sebetsa:

Ho eketsa phofo ea 0.1% ea vithamine C bakeng sa lihora tse 6 ho fokotsehile nitrite ka 60%.

Ho kopanya le konofolo e ncha (3% ka boima ba 'mele) ho fihletse liphello tse tšoanang.

Phuputso ena e tiisa hore likotsi tse teng lijong tse lomositsoeng lapeng li ka lebelloa esale pele ebile lia laoleha. Ka ho utloisisa matla a nitrite le ho kenya ts'ebetsong litsamaiso tse nepahetseng - joalo ka ho boloka letsoai la 2.5%, taolo ea mocheso o hlophisitsoeng, le motsoako oa pele - bareki ba ka natefeloa ke lijo tsa setso tse lomositsoeng. Ho eletsoa ho boloka "log ea ho belisa" ho latela mocheso, nako le likarolo tse ling, ho fetola mekhoa ea kichineng hore e be mekhoa e nang le tsebo ea saense, e tsebang kotsi.