Cov radical yog tam sim no hu ua atom lossis ib pawg atom nrog ib lub unpaired electron. Hais txog cov khoom no nws tseem ceeb heev kom paub cov hauv qab no: lawv tuaj yeem ua haujlwm thiab ruaj khov. Rau cov tshuaj tiv thaiv antioxidants thiab dawb radicals, cov yeeb yaj kiab yog cov cwj pwm. Piv txwv, peroxide, lossis peroxide oxidation ntawm lipids. Vim tias cov tshuaj oxidation oxidation ntawm lipids, ntawm cov cell membrane muaj li, cov tshuaj hawb pob hydroperoxides yog tsim rau lub cev. Cov tshuaj antioxidants ua si li cas? Lawv ntsib kev cuam tshuam cov kev lag luam thiab txiav cov txheej txheem ntawm cov tshuaj tua kabmob peroxidation. Nyob rau hauv cov ntaub ntawv no, antioxidant molecule ua ib tug ruaj radical. Nws yog tsaug rau qhov kev ruaj ntseg ntawm cov khoom rau hauv uas cov antioxidant hloov dua siab tshiab uas cov saw tawg.
Cov pa tawm hauv cov ntaub so ntswg. Qhov kev faib ua feem ntawm cov pa oxygen hauv thaj chaw yog kwv yees li 21%. Txawm tias qhov kev nce siab me tuaj yeem yog kev ntxhov siab rau lub cev. Txawm hais tias nws yog qhov tseeb, qhov hloov ntawm oxygen, uas tiv thaiv tag nrho lub neej los ntawm teeb meem UV rays, kuj yog mob toxic.
Tshuaj lom nrog tshuaj lom. Alas, paug qoob loo ntawm qhov chaw kuj ua rau nws tus kheej hnov. Mercury yog cov kua evaporating. Thiab nws yog cov pa ntawm mercury uas muaj tshuaj lom. Thiab txawm ntau txaus ntshai yog cov organic derivatives ntawm mercury. Mercury thiab nws cov khoom xyaw uas tsis muaj zog, uas yog siv ntau lub lag luam, nrog cov dej phwj tuaj mus rau hauv qab ntawm cov dej hauv lub cev.
UV-txoj sab ci. Cov kws kho mob xav kom lub cev tawm mus rau qhov "cia" nyob rau hauv qhov kev pab cuam ultraviolet rau hauv tsev, vim nws muaj antiseptic zog. Thiab nyob rau tib lub sij hawm nyob rau hauv tus ntawm ultraviolet dawb radicals raug tsim. Lub thia solub yog los kuj muaj teeb meem.
Thaum koj tau txais ib zaj nkauj zoo nkauj , koj tuaj yeem loj hlob qub ua ntej.
Flavonoids. Muaj kaum pab pawg ntawm flavonoids, tsib ntawm cov uas tsis muaj xim, piv txwv li, catechins. Lawv yooj yim oxidize thiab hloov xim. Qhov ntxiv tsib pawg ntawm flavonoids yog xim, cov no yog cov pigments ntawm nplooj, paj, txiv hmab txiv ntoo, berries.
Vitamin E. Nws yog ib qho ntawm feem ntau muaj zog antioxidants. Tam sim no vitamin E ntxiv rau txhua lub cream. Los ntawm txoj kev, khoom cua antioxidants yog analogues ntawm vitamin E.
Coenzyme Q lossis ubiquinone. Kuj tseem yog ib qho kev paub zoo txog cov cream. Coenzyme Q10 yog qhov zoo tshaj plaws paub. Cov vitamins no muaj nyob rau hauv txhua lub hlwb ntawm peb lub cev. Ua ntej tsis ntev los no, cov kws tshawb fawb tau hais ntau dua txog cov tshuaj ua kom muaj vitamin E. Nws ua rau ubiquinone yog ib qho antioxidant heev.
Vitamin C. Hauv cov nyiaj tsawg, xws li, yog antioxidant.
Steroid cov tshuaj hormones. Nws hloov tawm tias peb cov tshuaj hormones noj ib feem hauv cov tshuaj tiv thaiv antioxidant ntawm lub cev.
Hormone thyroxine. Qhov tshuaj hormone no yog tsim los ntawm cov thyroid caj pas thiab muaj iodine. Raws li, kom muaj thyroxine hauv peb lub cev, yuav tsum tau iodine.
Selenium. Nws tseem yog lub ntsiab lus tseem ceeb. Selenium yog ib feem ntawm cov enzyme, uas pom cov tshuaj antioxidant.
Amino acids thiab glutathione. Amino acids yog ib feem ntawm cov enzymes. Thiab methionine yog ib qho tseem ceeb ntawm cov amino acid, uas yog, lub cev tsis tsim nws. Yog li, nyob rau hauv peb cov khoom noj yuav tsum yog cov khoom uas muaj methionine.
Kev laus - alas - tus txheej txheem yog kev tsis pom zoo. Cuam tshuam txoj kev ua neej, kev coj cwj pwm, kev noj haus. Xyoo dhau los no, muaj 200 qhov kev xav thiab kev xav ntawm kev laus. Ib qho ntawm thawj qhov chaw ntawm lawv yog qhov dawb radical txoj kev xav. Txaus siab ntawm cov khoom ntawm peroxidation thiab dawb radicals txo cov kev ua ntawm cov enzymes, cuam tshuam kev ua haujlwm ntawm lub cell membranes, resulting nyob rau hauv ib qho kev tshaj ntawm pigment - lipofuscin - nyob rau hauv lub hlwb. Qhov pig no yog lub complex ntawm oxidized fatty acids uas muaj protein ntau. Ntxiv mus, qhov ntau dua qhov degree ntawm unsaturation ntawm acids thiab lub siab dua lawv oxidation, ntau lub pigment ntawm qub hnub nyoog yog tsim. Nyob rau tib lub sij hawm nrog hnub nyoog, qhov kev ua ntawm cov enzymes uas sib ntaus nrog cov kev puas, thiab lwm yam kev tiv thaiv txo. Yog li, lub cev xav tau kev tiv thaiv ntxiv.
Muaj cov pov thawj tias cov antioxidants txo cov kev mob ntawm carcinogens. Thiab dawb radical kev, feem, txhawb rau kev loj hlob ntawm cancer. Cov ntaub ntawv uas cov neeg tshawb xyuas tau txais yog qhov sib txawv heev. Txawm li cas los xij, yog tias carcinogens ua rau lub cev ntev, lub txim yuav raug pom. Thiab ntawm no, lub luag haujlwm tseem ceeb yog ua los ntawm yam peb noj thiab cov zaub mov ua li cas. Zaub mov zoo thiab ua tau siav zoo rau txhua tus. Thaum kib, cov nqaij rog nyob hauv cov khoom no feem ntau rhuab mus rau 160-200 ° C, thiab txawm siab zog.
Ntawm chav kawm, nyob rau ntawm no kub, txawm pab tau unsaturated fatty acids uas yog oxidized thiab hloov dua siab tshiab rau hauv cov ntaub ntawv uas txaus ntshai rau kev noj qab nyob. Yog li, txoj kev zoo rau kev ua zaub mov yog ua kom huv. Thiab zaub roj, uas yog cov tseem ceeb rau peb lub cev, yuav tsum raug siv rau kev hnav khaub ncaws. Txhua txhua hnub, los yog txawm ntau zaus ib hnub, peb noj kib. Xav txog nws. Nws tsis yog li yooj yim mus yuam koj tus kheej noj cov nqaij hau nrog cov zaub mov siav rau ob peb tug, tab sis nws tsim nyog nws.
Antioxidants yog ib feem ntawm cov tshuaj pleev ib ce. Tab sis qhov no tsis txaus. Tom qab tag nrho, dawb radicals tua tag nrho lub cev, thiab tsis tsuas yog tawv hnub nyoog. Zaub mov tseem ceeb heev.
Vitamin E muaj nyob rau hauv cov roj zaub: paj noob hlis, txiv ntseej, pob kws thiab lwm tus. Ntxiv thiab, cov vitamin E yog nplua nuj nyob hauv cov qoob loo. Yog li ntawd, nws yog qhov zoo dua rau noj mov los ntawm ib pluag mov ntawm coarse grind los yog nrog bran. Raws li rau qhov loj npaum li cas ntawm carbohydrates nyob rau hauv cov khoom muag hmoov. Los ntawm ib los yog ob lub ncuav ntawm khob cij yuav zoo dua li raug mob. Nws yog qhov zoo dua rau noj khoom qab zib tsawg dua thiab lwm cov khoom qab zib.
Flavonoids. Cov chaw ntawm flavonoids yog zaub thiab txiv hmab txiv ntoo, piv txwv li, artichokes. Catechin muaj nyob hauv cocoa. Yog li ntawd, nws yog zoo dua los muab kev xaiv rau iab chocolate tshaj rau mis nyuj chocolate.
Selenium muaj peev xwm pom nyob rau hauv coconuts, pistachios, qej.
Feem ntau ntawm tag nrho cov iodine muaj nyob rau hauv hiav txwv kale, zoo li hauv lwm cov nqaij nruab deg.
Ubihinon nyob txhua qhov chaw. Los ntawm txoj kev, los ntawm txoj cai. ubique - qhov txhia chaw, qhov txhia chaw. Yog li, nws nyuaj heev los tham txog qhov tsis muaj peev xwm ntawm coenzyme Q.
Qhov chaw ntawm cov amino acids yog cov proteins. Tsis txhob tso nqaij thiab kua zaub. Vim tias tseem ceeb heev cov amino acids uas tsuas yog tsim nyog rau peb lub cev, piv txwv li, lysine. No cov amino acid nyob hauv cov pob txha thiab pob txha mos.