Fats tau nyuam qhuav poob rau hauv kev poob siab. Ntawm qhov one tes, qhov no yeej muaj tseeb - cov zaub mov fatty heev caloric, thiab nyob rau hauv kev nrhiav kev sib haum xeeb, txhua tus calorie uas noj tsis yog coj los siv ua tus account. Tab sis tsis txhob hnov qab tias tag nrho cov tsis txaus siab ntawm cov chav kawm ntawm cov as-ham tuaj yeem nqa cov teeb meem loj mob. Tom qab tag nrho, lawv cov muaj pes tsawg leeg muaj ntau yam tsim nyog rau txoj haujlwm ntawm peb lub cev: piv txwv li, polyunsaturated fatty acids.
Cov kev txuas no yog dab tsi?
Yog hais tias koj nco qab lub tsev kawm ntawv cov chav kawm ntawm cov organic chemistry, nws hloov tawm tias cov rog yog cov tebchaw ntawm glycerin thiab fatty acids.
Fatty acids yog cov organic tshuaj nyob rau hauv nws cov molecules lub -COOH fragment, uas yog lub luag hauj lwm rau cov kua qaub, txuas nrog carbon atoms, uas yog cov sib lawv liag. Rau txhua cov carbon atom uas txuas nrog ob peb hom hydrogen, vim li ntawd, tus tsim muaj li ntawm daim ntawv nram qab no:
CH3- (CH2-CH2) n-COOH
Nws tshwm sim hais tias nyob rau hauv qee cov acids "carbon" txuas nrog ib leeg tsis 1, tab sis los ntawm 2 bonds:
CH3- (CH = CH) n-COOH
Cov kua qaub no yog hu ua unsaturated.
Yog tias muaj ntau ntau cov carbon atoms hauv lub compound, lawv txuas nrog lwm tus los ntawm qhov thib ob bonds, ces xws acids hu ua polyunsaturated, los ntawm Greek "tus tub ceev xwm", uas txhais tau ntau heev.
Qhov tom kawg, tig mus, tau muab faib ua ntau pawg, xws li:
- omega-9;
- omega-6;
- omega-3 polyunsaturated acids.
Qhov twg ntawm lawv lub unsaturated acid belongs, nws yog txiav txim los ntawm qhov tseeb uas cov atom atom suav, yog tias peb pib nrog non-acid kawg ntawm lub molecule (CH3-), thawj 2-nd nyiaj yuav.
Los ntawm txoj kev, peb lub cev ua cov omega-9 acids, tab sis cov neeg sawv cev ntawm 2 lwm pawg peb tau, tsuas, ntawm cov khoom noj.
Vim li cas thiaj yuav ua rau cov roj fatty acids uas yuav tsum tau siv?
Cov kev sib txuas lus yog ib qho tsim nyog tiv thaiv rau lub plhaub ntawm txhua tus tsiaj cov hlwb - qhov sib txawv cell membrane. Ntxiv mus, qhov ntau ua qhov kev ua si ntawm lub cell, qhov siab dua tus nqi ntawm polyunsaturated fatty acids nyob rau hauv nws plhaub. Piv txwv li, nyob rau hauv lub cell membrane ntawm retina ntawm peb lub qhov muag, yuav luag 20% ntawm cov acids, thiab nyob rau hauv lub plhaub ntawm subcutaneous roj hlwb, lawv cov ntsiab lus yog tsawg dua 1%.
Ntxiv nrog rau txoj kev tsim kho, cov tshuaj no yuav tsum tau siv rau kev siv biosynthesis ntawm endohormones - cov tshuaj uas cuam tshuam rau cov dej num ntawm lub cell uas tsim los ntawm cov tshuaj hormones hauv zos, yog li ntawd hais lus. " Kuv xav tham ntau txog lawv, vim cov keeb no muaj feem xyuam rau cov txheej txheem ntau hauv peb lub cev.
Yog li, cov tshuaj endo-hormones tswj tej yam zoo li qhov pib lossis ploj zuag ntawm qhov mob thiab o, thiab tseem muaj feem xyuam rau txoj kev muaj peev xwm ntawm cov ntshav mus khawb. Lawv tsim, raws li tau hais los saum no, los ntawm cov acids twb paub rau peb, uas yog muaj nyob rau hauv cell membrane. Thiab, los ntawm ntau pawg, cov tshuaj hormones yog tsim los daws teeb meem ntau yam. Yog li, los ntawm omega-6 acids yog cov khoom tsim muaj lub luag haujlwm ntawm tib neeg lub cev los ua kev puas tsuaj puag ncig. Xws li endohormones nce cov ntshav coagulability, uas tiv thaiv ib tug loj poob ntawm nws thaum lub qhov txhab, thiab tseem ua rau mob thiab mob - tsis kaj siab, tab sis tsim nyog rau kev ciaj sia. Txawm li cas los xij, yog tias cov tshuaj no ua dhau los, cov txheej txheem tsis muaj kev tswjhwm: cov ntshav ua rau khov khov, siab hlwv, cov ntshav txhaws hauv cov hlab ntsha, qhov kev pheej hmoo ntawm lub plawv thiab kev mob stroke nce, thiab kev tsis haum tshuaj zais.
Endo-hormones tau los ntawm omega-3 polyunsaturated acids muaj cov nyhuv txawv: lawv txo inflammatory tshua, dilute cov ntshav, txo qhov mob. Ntxiv mus, qhov ntau dua qhov concentration ntawm omega-3 acids hauv lub cev, cov tshuaj hormones tsawg yog synthesized los ntawm omega-6 acids. Txawm li cas los xij, koj yuav tsum tsis txhob tso pov tseg tom kawg, vim tias qhov no hypotension, pluag coagulability ntshav thiab ib qho kev poob rau hauv kev tiv thaiv hauv zos. Qhov zoo tshaj plaws, yog tias qhov kev noj haus rau 4 qhov chaw ntawm omega-6 yuav yog 1 feem ntawm omega-3 fatty acids.
Khoom nplua nuj nyob hauv polyunsaturated fatty acids
Cov kev pab ntawm polyunsaturated fatty acids yog:
- feem ntau cov roj zaub, piv txwv - sunflower, txiv ntseej, rapeseed, linseed, soybean;
- txiv ntseej thiab noob - txiv laum huab xeeb, walnuts, sunflower noob;
- fatty thiab bold ntau hom ntses - sardines, herring, mackerel, salmon, trout, tuna, capelin, nees mackerel;
- cod daim siab roj.
Txawm li ntawd los, nws yuav tsum tau muab rau hauv tus account tias nyob rau hauv cov nroj tsuag muaj mas omega-6 polyunsaturated fatty acids, thiab nyob rau hauv cov ntses - omega-3 acids.