DMPT, CAS NO.: 4337-33-1. Yabwino kwambirichokopa cha m'madzitsopano!

DMPTChodziwika kuti dimethyl-β-propiothetin, chimapezeka kwambiri m'nyanja zamchere ndi zomera zapamwamba za halophytic. DMPT imakhudza kwambiri kagayidwe kazakudya ka nyama zoyamwitsa, nkhuku, ndi nyama zam'madzi (nsomba ndi nkhanu). DMPT ndiye chinthu chomwe chimakhala ndi mphamvu yayikulu kwambiri pa nyama zam'madzi pakati pa mankhwala onse odziwika omwe ali ndi (CH) ndi magulu a S.

1. Gwero la DMPT

Dimethyl sulfide (DMS) yopangidwa ndi Polysipho - nia fastigata imachokera makamaka kuDMPT, yomwe imagwiranso ntchito ngati methyl donor mu algae, ndipo chowongolera chachikulu cha osmotic cha algae ndi chomera cha matope cha Spartina angelica ndi DMPT. Zomwe zili mu DMPT zimasiyana pakati pa mitundu yosiyanasiyana ya algae, ndipo zomwe zili mu mtundu womwewo wa algae zimasiyananso nyengo zosiyanasiyana. DMPT imatha kufulumizitsa kwambiri kudyetsa ndi kukula kwa nsomba zosiyanasiyana zamadzi oyera. Mphamvu ya DMPT yodyetsa ndi yosiyana ndi zinthu zina monga L-amino acid kapena nucleotides, ndipo imakhala ndi zotsatira zodyetsa ndi kukula pafupifupi nyama zonse za m'madzi.

2.1 Ma Ligand Ogwira Ntchito Ngati Zolandirira Kulawa

Kafukufuku wa ma receptor m'ziwalo zomvera zamadzimadzi zomwe zimatha kuyanjana ndi magulu a (CH) S akadali opanda kanthu. Kuchokera ku zotsatira za kafukufuku wa khalidwe, zitha kufufuzidwa kuti nsomba zili ndi ma receptor olawa omwe amatha kuyanjana ndi mankhwala otsika a molekyulu okhala ndi magulu a (CH), N -, ndi (CH2) 2S.

2.2 Monga wopereka methyl

Magulu a (CH) ndi S paDMPTMamolekyulu ndi magwero a magulu a methyl ofunikira kuti nyama idye bwino. Pali mitundu iwiri ya ma methyltransferases (EC2.1.1.3 ndi EC2.1.1.5) m'chiwindi cha nyama yomwe imagwiritsidwa ntchito ndi nyama (CH) ndi S.

Zinapezeka kuti kuchuluka kwa DMPT ndi kuchuluka kwa DMS m'maselo a m'nyanja kunawonjezeka ndi kuchuluka kwa mchere m'malo osungiramo zomera a m'nyanja yolimidwa (Hymenonas carterae).

DMPTIli ndi ma cell ambiri a phytoplankton, algae, ndi mollusks monga clams ndi corals, komanso m'matupi a krill ndi nsomba. Iida et al. (1986) adatsimikiza kuti kuchuluka kwa DMPT ndi kupanga kwa DMS mu nsomba zimagwirizana bwino ndi kuchuluka kwa DMPT muzakudya zawo, zomwe zikusonyeza kuti mpunga wa DMPT mwa nyama umachokera ku nyambo ndipo umalowa m'thupi la nyama ya munthu kudzera mu unyolo wa chakudya m'zamoyo zam'madzi. Algae imatha kupanga DMPT ndikuisonkhanitsa pamlingo wapamwamba (3-5 mmol/L) m'thupi. DMPT mu nsomba ndi mollusks ili pafupi ndi kuchuluka kwawo muzakudya, ndipo kuchuluka kwa DMPT kukuwonetsa kuchepa kwa algae (1 mmol/L), mollusks (0.1 mmol/L), ndi nsomba (0.01 mmol/L).

Njira Yogwiritsira Ntchito Thupi la MunthuDMPTZochita

M'zaka zaposachedwapa, kafukufuku wapeza kuti DMPT imakhudza kwambiri khalidwe la kudya ndi kukula kwa nsomba zosiyanasiyana za m'madzi ndi m'madzi oyera, crustaceans, ndi nkhono, zomwe zimatha kupititsa patsogolo luso lawo lolimbana ndi kupsinjika maganizo ndi kuchita masewera olimbitsa thupi, komanso kuwonjezera ma enzyme ofunikira a methyl yochepa m'zakudya. Pogwiritsa ntchito chiwindi cha sea bream ngati zinthu zoyesera komanso mankhwala osiyanasiyana okhala ndi (CH) ndi S - magulu ngati magawo, zapezeka kuti E C.2.1.1.3 ndi E Ntchito ya enzyme imakhala yayikulu kwambiri pamene DMPT ikugwiritsidwa ntchito ngati gawo lapansi.

3. Zotsatira za zakudya za DMPT pa nyama zam'madzi

Ma organic compounds makumi awiri otsika kwambiri okhala ndi (CH) ndi magulu a S adagwiritsidwa ntchito poyesa kuluma ndi kuyesa kwa electrophysiological pa nsomba za m'madzi a m'nyanja ndi m'madzi amchere. Zinapezeka kuti DMPT inali ndi mphamvu yayikulu kwambiri pakuluma mitundu itatu ya nsomba, kuphatikizapo tuna, carp, ndi black crucian carp (Carassius auratus cuviera). Inalimbikitsanso kwambiri kudyetsa kwa sea water true scale (Pagrus major) ndi five scales (Seriola quinquera diata).

Sakanizani DMPT ndi mankhwala ena okhala ndi sulfure pamlingo wa 1.0mmol/L. mu zakudya zosiyanasiyana zoyesera, ndipo m'malo mwa gulu lowongolera ndi madzi osungunuka kuti muchite mayeso oyankha kudya pa crucian carp. Zotsatira zake zasonyeza kuti m'magulu anayi oyamba a zoyesera, gulu la DMPT linali ndi avareji ya kuluma kwapamwamba 126 kuposa gulu lowongolera; Mu kuyesa kwachiwiri kwa magulu 5, gulu la DMPT linali lalikulu nthawi 262.6 kuposa gulu lowongolera. Mu kuyesa koyerekeza ndi glutamine, zidapezeka kuti pamlingo wa 1.0mmol/L.