Anthocyanins yog dab tsi?
Anthocyanins uas yog dej -soluble natural pigment dav pom nyob rau hauv cov nroj tsuag nyob rau hauv cov xwm. Feem ntau ntawm cov xim tseem ceeb hauv txiv hmab txiv ntoo, zaub, thiab paj muaj feem xyuam rau nws. Lub luag haujlwm tseem ceeb yog txhawm rau txo qhov muag qaug zog thiab nrawm nrawm ntawm vitamin A synthesis ntawm rhodopsin ntawm lub retina. Nws muaj peev xwm tshem tawm cov dawb radicals thiab tiv thaiv -oxidation tsawg dua li ntawm OPC,
Nyob rau hauv qhov sib txawv pH ntawm cov nroj tsuag cell vacuoles, anthocyanins ua petals qhia cov xim zoo nkauj. Muaj ntau tshaj 20 hom anthocyanins, ntawm 6 yog ib qho tseem ceeb hauv cov zaub mov, xws li Pelargonidin, Cyanidin, Delphindin, Peonidin, Petunidin, Malvidin.
Ntuj anthocyanins muaj nyob rau hauv daim ntawv ntawm glycosides, hu ua anthocyanins, thiab muaj ob peb dawb anthocyanins. Anthocyanins feem ntau yog siv rau hauv cov zaub mov xim, tab sis kuj muaj nyob rau hauv dyes, tshuaj, tshuaj pleev ib ce, thiab lwm yam.
Tsis muaj qhov tsis ntseeg, berries yog qhov zoo tshaj plaws ntawm anthocyanins. Kuj tseem muaj ntau yam kev xaiv los xaiv. Raws li txoj cai dav dav, qhov tsaus dua qhov zoo dua. Qhov no txhais tau tias dub raspberries yuav muab ntau anthocyanins dua li niaj zaus raspberries thiab hais txog.
Cov piv txwv tseem ceeb tshaj plaws yog cov hauv qab no.
Blackberries. With their dark coloring, it's hardly surprising that blackberries are a powerful anthocyanin source.
Blackcurrants. Blackcurrants may be less common but they're an especially potent source of anthocyanins.
Blueberries. Cov no yog txuam nrog ntau cov txiaj ntsig kev noj qab haus huv thiab muab cov ntsiab lus siab ntawm anthocyanins.
Cranberries. As their coloring is lighter, the anthocyanin content will be lower for cranberries. They're still a good source though and offer other benefits.
Raspberries. Like with cranberries, raspberries aren't as powerful for anthocyanins. But, they do contain a decent amount and offer other beneficial compounds as well
Dub raspberries. Cov no tsis tshua muaj ntau, tab sis lawv muaj anthocyanins ntau dua li cov raspberries li niaj zaus. Lawv tsw yog nthuav thiab.
Cherries. Anthocyanins are present in all types of cherries. But they're more prevalent in tart cherries. Tart cherries also offer other benefits, such as being powerful for reducing inflammation.
Lwm cov berries yuav muaj anthocyanins thiab. Qhov no suav nrog cov uas muaj ntau, nrog rau ntau qhov kev xaiv tsis meej. Lub vev xaib Serious Eats muaj cov npe ntawm qee qhov ntawm no.
Hais txog kev ua tau zoo, nws tuaj yeem muaj cov hauv qab no
1. Tiv thaiv cov ntshav ncig ntawm tib neeg lub cev los ntawm peb txoj kev: tshem tawm cov pa oxygen dawb radicals hauv cov ntshav; pab lub cev tiv thaiv kev tsim ntawm oxygen dawb radicals; txhim khu kev ncaj ncees ntawm cov hlab ntsha phab ntsa.
2. inhibit qhov degradation ntawm cov ntaub so ntswg sib txuas los ntawm collagenase thiab elastase, yog li pab tswj cov elasticity ntawm daim tawv nqaij thiab siv nws los tiv thaiv - kev laus.
3. Nws tuaj yeem txhim kho microcirculation ntawm retinal capillaries nyob rau hauv lub fundus thiab capillaries nyob rau hauv extremities.
4. Los ntawm kev tswj xyuas cov hlab ntsha thiab txhim kho microcirculation, ntau yam kabmob thiab cov ntaub so ntswg tuaj yeem tau txais cov ntshav txaus.
5. Nws tuaj yeem txhim kho kev tiv thaiv kab mob. Proanthocyanidins tuaj yeem txhim kho lub cev tiv thaiv kab mob muaj peev xwm ntawm nas noj cawv thiab nas kis tus kab mob retrovirus.
6. Proanthocyanidins tseem tuaj yeem txhim kho qhov ua tau zoo ntawm cov vitamin C thiab ua kom lub sijhawm ntev ntawm cov vitamin C kom muaj txiaj ntsig hauv tib neeg lub cev.
7. Lub solubility ntawm proanthocyanidins nyob rau hauv dej yog zoo heev, thiab nws yog absorbed zoo tom qab noj qhov ncauj. Nws nkag mus rau tib neeg lub cev kom siv tau sai thiab kav ntev.
8. Cov txiaj ntsig ntawm ntau yam kev sim tsiaj thiab kev sim kev tshawb fawb tau ua pov thawj tias proanthocyanidins tsis yog - lom, mutagenic, tsis carcinogenic, tsis yog - tsis haum, yog li procyanidins muaj kev nyab xeeb.