Potassium dicarboxylatebụ ihe mgbakwunye nri mbụ na-akwalite uto na-abụghị ọgwụ nje nke European Union kwadoro. Ọ bụ ngwakọta nke potassium dicarboxylate na formic acid site na njikọ hydrogen dị n'etiti molekul. A na-ejikarị ya eme ihe n'ọtụtụ ebe na ezi ndị na-eto eto na ndị na-eto eto. Nsonaazụ nke nnwale nri gosiri na itinye potassium dicarboxylate na nri ezi nwere ike ime ka ibu ibu nke ezi dịkwuo elu ma belata ọnụọgụ ọnwụ nke ọrịa nje bacteria kpatara. Ịtinye potassium dicarboxylate na nri ehi nwekwara ike ime ka mmiri ara ehi dịkwuo mma.

N'ọmụmụ ihe a, a na-enye ụdị doses dị iche iche nkepotassium dicarboxylateA na-etinye Penaeus vannamei na nri nke obere protein, iji chọpụta ihe na-akwalite uto nke ọma na gburugburu ebe obibi, nke na-abụghị ọgwụ nje.

Akụrụngwa na ụzọ

1.1 nri nnwale

E gosiri usoro nri nnwale na nsonaazụ nyocha kemịkalụ na Tebụl 1. E nwere otu nri atọ na nnwale ahụ, ihe dị na potassium dicarboxylate bụkwa 0%, 0.8% na 1.5% n'otu n'otu.

1.2 oporo nnwale

Ibu ahụ Penaeus vannamei mbụ bụ (57.0 ± 3.3) mg) C. E kewara nnwale ahụ n'ime otu atọ, e nwekwara ihe atọ ọzọ n'otu ọ bụla.

1.3 ebe nri

A na-eme ome oporo n'ime ụlọ mkpọrọ dị n'ime ya, nke nwere nkọwapụta nke 0.8 mx 0.8 mx 0.8 M. E tinyere ụlọ mkpọrọ niile n'ime ọdọ mmiri simenti gbara gburugburu (1.2 m n'ịdị elu, 16.0 m n'obosara).

1.4 Nnwale nri nke potassium form

E kenyere otu nri atọ (0%, 0.8% na 1.5% potassium dicarboxylate) n'enweghị usoro nye otu ọ bụla mgbe ha tụchara iberibe iri atọ n'ime igbe. Ọnụọgụ nri ahụ bụ 15% nke ibu ahụ mbụ site na ụbọchị mbụ ruo ụbọchị nke iri, 25% site na ụbọchị nke iri na otu ruo ụbọchị nke iri atọ, na 35% site na ụbọchị nke iri atọ na otu ruo ụbọchị nke iri anọ. Nnwale ahụ were ụbọchị iri anọ. Okpomọkụ mmiri ahụ bụ 22.0-26.44 ℃, nnu dị na ya bụ 15. Mgbe ụbọchị iri anọ gachara, a tụrụ ma gụọ ibu ahụ, ya na ibu ahụ.

Nsonaazụ 2.2

Dịka nnwale nke njupụta nke ngwaahịa si dị, njupụta kachasị mma nke ngwaahịa bụ azụ 30 / igbe. Ọnụego ndụ nke otu njikwa bụ (92.2 ± 1.6)%, ọnụego ndụ nke otu potassium diformate 0.8% bụ 100%; Agbanyeghị, ọnụego ndụ nke Penaeus vannamei belatara ruo (86.7 ± 5.4)%, mgbe ọkwa mgbakwunye mụbara ruo 1.5%. Ọnụego nri ahụ gosikwara otu usoro ahụ.

Mkparịta ụka atọ

N'ime nnwale a, itinye potassium diformate nwere ike ime ka uru kwa ụbọchị na ndụ nke Penaeus vannamei dịkwuo mma. E tinyere otu echiche ahụ mgbe a na-etinye potassium dicarboxylate na nri ezi. E kwadoro na mgbakwunye nke 0.8% potassium diformate na nri oporo nke Penaeus vannamei nwere mmetụta ka mma na-akwalite uto. Roth et al. (1996) kwadoro mgbakwunye nri kacha mma na nri ezi, nke bụ 1.8% na nri mmalite, 1.2% na nri ịhapụ ara na 0.6% na ezì na-eto ma na-emecha.

Ihe mere potassium dicarboxylate ji enwe ike ịkwalite uto bụ na potassium dicarboxylate nwere ike iru gburugburu eriri afọ nke na-adịghị ike site n'inye afọ anụmanụ nri n'ụdị zuru oke, ma gbazee na akpaghị aka ka ọ bụrụ formic acid ma mepụta, na-egosi mmetụta siri ike nke bacteriostatic na bacteriotic, na-eme ka eriri afọ anụmanụ yie "ọnọdụ adịghị mma", si otú a na-egosi mmetụta na-akwalite uto.