Potassium dicarboxylateyog thawj zaug uas tsis yog tshuaj tua kab mob loj hlob txhawb kev pub noj additive pom zoo los ntawm European Union.Nws yog ib qho kev sib xyaw ntawm potassium dicarboxylate thiab formic acid los ntawm kev sib txuas ntawm cov tshuaj hydrogen.Nws yog dav siv nyob rau hauv piglets thiab loj hlob tiav npua.Cov txiaj ntsig ntawm kev sim pub mis pom tau tias ntxiv cov poov tshuaj dicarboxylate rau npua noj zaub mov tuaj yeem ua rau nce qhov hnyav ntawm npua thiab txo cov neeg tuag los ntawm kab mob.Ntxiv cov poov tshuaj dicarboxylate rau nyuj pub kuj tuaj yeem txhim kho cov kua mis tawm ntawm nyuj.

Hauv qhov kev tshawb fawb no, cov tshuaj sib txawv ntawmpoov tshuaj dicarboxylatetau ntxiv rau cov khoom noj uas tsis muaj protein ntau Penaeus vannamei, txhawm rau tshawb nrhiav qhov ua tau zoo thiab ib puag ncig tus phooj ywg uas tsis yog tshuaj tua kab mob loj hlob txhawb tus neeg sawv cev.

Cov ntaub ntawv thiab cov txheej txheem

1.1 kev sim pub

Kev sim pub mis mis thiab tshuaj ntsuam xyuas cov txiaj ntsig tau pom nyob rau hauv Table 1. Muaj peb pawg pub rau hauv qhov kev sim, thiab cov ntsiab lus ntawm cov poov tshuaj dicarboxylate yog 0%, 0.8% thiab 1.5% feem.

1.2 sim cws

Thawj lub cev hnyav ntawm Penaeus vannamei yog (57.0 ± 3.3) mg) C. Qhov kev sim tau muab faib ua peb pawg nrog peb replicates hauv txhua pab pawg.

1.3 qhov chaw pub mis

Cw kab lis kev cai tau ua nyob rau hauv net tawb nrog cov specification ntawm 0.8 mx 0.8 mx 0.8 M. tag nrho cov net tawb tau teem nyob rau hauv ib tug ntws puag ncig cement pas dej ua ke (1.2 m siab, 16.0 m inch).

1.4 pub kev sim ntawm potassium formate

Peb pawg noj zaub mov (0%, 0.8% thiab 1.5% potassium dicarboxylate) tau muab tso rau txhua pawg tom qab hnyav 30 daim / thawv.Tus nqi pub mis yog 15% ntawm thawj lub cev hnyav txij hnub 1 txog rau hnub 10, 25% txij hnub 11 txog rau hnub 30, thiab 35% txij hnub 31 txog hnub 40. Qhov kev sim tau siv sijhawm li 40 hnub.Cov dej kub yog 22.0-26.44 ℃ thiab cov salinity yog 15. Tom qab 40 hnub, lub cev hnyav tau hnyav thiab suav, thiab qhov hnyav.

2.2 cov txiaj ntsig

Raws li kev sim ntawm cov khoom siv ntom ntom ntom ntom ntom ntom ntom, cov txiaj ntsig zoo tshaj plaws yog 30 ntses / thawv.Cov ciaj sia taus ntawm pawg tswj yog (92.2 ± 1.6)%, thiab cov ciaj sia taus ntawm 0.8% potassium diformate pawg yog 100%;Txawm li cas los xij, qhov ciaj sia taus ntawm Penaeus vannamei poob mus rau (86.7 ± 5.4)%, thaum qhov sib ntxiv tau nce mus rau 1.5%.Cov coefficient pub kuj tau pom zoo ib yam.

3 kev sib tham

Hauv qhov kev sim no, ntxiv cov poov tshuaj diformate tuaj yeem txhim kho qhov nce txhua hnub thiab kev ciaj sia ntawm Penaeus vannamei.Tib qhov kev xav tau muab tso rau pem hauv ntej thaum ntxiv potassium dicarboxylate rau npua pub.Nws tau raug lees paub tias qhov sib ntxiv ntawm 0.8% potassium diformate hauv cw pub ntawm Penaeus vannamei muaj kev txhawb nqa kev loj hlob zoo dua.Roth et al.(1996) pom zoo kom noj zaub mov zoo ntxiv hauv npua pub, uas yog 1.8% hauv kev noj zaub mov pib, 1.2% hauv kev noj zaub mov thiab 0.6% hauv kev loj hlob thiab ua tiav npua.

Yog vim li cas yog vim li cas poov tshuaj dicarboxylate tuaj yeem txhawb kev loj hlob yog tias potassium dicarboxylate tuaj yeem ncav cuag qhov tsis muaj zog alkaline plab hnyuv ib puag ncig los ntawm kev pub tsiaj lub plab ua tiav, thiab cia li decompose rau hauv formic acid thiab formate, uas qhia tau hais tias muaj zog bacteriostatic thiab bactericidal nyhuv, ua rau tsiaj plab hnyuv tshwm sim " sterile" xeev, yog li qhia kev loj hlob txhawb nqa.