Kodi ma organic acid ndi chiyani?

Ma organic acids" amatanthauza ma acid onse otchedwa carboxylic acids omangidwa pa chigoba cha kaboni chomwe chingasinthe kapangidwe ka thupi la mabakiteriya, zomwe zimayambitsa zovuta za kagayidwe kachakudya zomwe zimaletsa kuchulukana ndi kubweretsa imfa.

Pafupifupi ma asidi onse achilengedwe omwe amagwiritsidwa ntchito pa zakudya za nyama (monga formic acid, propionic acid, lactic acid, acetic acid, sorbic acid kapena citric acid) ali ndi kapangidwe ka aliphatic ndipo ndi magwero amphamvu a maselo. Mosiyana ndi zimenezi,asidi wa benzoicimamangidwa pa mphete zonunkhiritsa ndipo ili ndi mphamvu zosiyanasiyana zogayira ndi kuyamwa kwa zinthu.

Kuwonjezera ma organic acids pa mlingo woyenera mu chakudya cha ziweto kungapangitse kulemera kwa thupi, kusintha kusintha kwa chakudya ndikuchepetsa kulowa kwa tizilombo toyambitsa matenda m'matumbo.

1, kuchepetsa pH ndi mphamvu yosungira chakudya komanso zotsatira za mabakiteriya ndi bowa.

2, potulutsa ma ayoni a haidrojeni m'mimba kuti achepetse pH, motero kuyambitsa pepsinogen kuti ipange pepsin ndikuwonjezera kugaya kwa mapuloteni;

3. Kuletsa mabakiteriya opanda gramu m'mimba.

4, metabolites wapakati - amagwiritsidwa ntchito ngati mphamvu.

Kugwira ntchito kwa asidi wachilengedwe poletsa kukula kwa tizilombo kumadalira phindu lake la pKa, lomwe limafotokoza pH ya asidi pa 50% mu mawonekedwe ake osagwirizana komanso osasakanikirana. Chomalizachi ndi momwe ma organic acids ali ndi mphamvu zotsutsana ndi mabakiteriya. Ndi pokhapokha ngati ma organic acid ali mu mawonekedwe awo osasakanikirana pomwe amatha kudutsa m'makoma a mabakiteriya ndi bowa ndikusintha kagayidwe kawo ka thupi komwe amakhala ndi mphamvu zotsutsana ndi mabakiteriya. Chifukwa chake, izi zikutanthauza kuti mphamvu yolimbana ndi ma organic acid imakhala yokwera kwambiri mukakhala ndi acid (monga m'mimba) ndipo imachepa pa pH yopanda mbali (m'matumbo).

Chifukwa chake, ma organic acid okhala ndi ma pKa ambiri ndi ma acid ofooka komanso opha tizilombo toyambitsa matenda omwe amagwira ntchito bwino kwambiri chifukwa cha kuchuluka kwa mitundu yosalumikizana yomwe ilipo mu chakudya, zomwe zimatha kuteteza chakudyacho ku bowa ndi tizilombo toyambitsa matenda.

Glyceride yokhala ndi asidi

M'zaka za m'ma 1980, wasayansi waku America Agre adapeza puloteni ya nembanemba ya maselo yotchedwa aquaporin. Kupezeka kwa njira zamadzi kwatsegula gawo latsopano la kafukufuku. Pakadali pano, asayansi apeza kuti ma aquaporin amapezeka kwambiri mu nyama, zomera ndi tizilombo toyambitsa matenda.

Kudzera mu kapangidwe ka propionic acid ndi butyric acid ndi glycerol, α-monopropionic acid glycerol ester, α-monobutyric acid glycerol ester, potseka njira ya glycerol ya mabakiteriya ndi bowa, zimasokoneza mphamvu zawo komanso membrane dynamic balance, kotero kuti zimataya magwero a mphamvu, zimaletsa kupanga mphamvu kuti zigwire ntchito yabwino yopha mabakiteriya, komanso kuti zisakhale ndi zotsalira za mankhwala.