Nqaij yog nquag oxidation vim nws yog nplua nuj nyob rau hauv cov as-ham xws li rog thiab protein. Qhov no yuav cuam tshuam rau nws cov xim, kev ntxhib los mos, tsw thiab khoom noj muaj txiaj ntsig, ua rau poob nyiaj txiag. Nyob rau hauv xyoo tas los no, kev siv cov tshuaj antioxidants hauv khw tau nce. Ntuj antioxidants kuj muaj kev nyab xeeb, yog li lawv nyiam los ntawm cov neeg siv khoom.
Tam sim no, muaj plaub hom kev siv tshuaj tua kab mob ntuj: polyphenols, vitamins, polysaccharides thiab saponins. Ntawm lawv, muaj ntau hom kev tshawb fawb txog polyphenolic antioxidants. Cov qauv polyhydroxy txuas nrog lub nplhaib benzene plays cov nyhuv antioxidant tom qab muaj feem cuam tshuam, xws li tshuaj yej polyphenols, tannins, thiab lwm yam hauv qab no, cov teebmeem ntawm tannins, ginsenosides,Wolfberry polysaccharide, thiab astaxanthin nrog polyphenol qauv ntawm cov dawb radical scavenging muaj peev xwm ntawm txawv concentrations tau tshawb xyuas. Muab ib tug siv rau daim ntawv thov ntawm ntuj antioxidants.
Antioxidant Muaj peev xwm
Antioxidant kev ua ub no ntawm cov khoom sib txawv ntawm ntau qhov sib txawv pom tau tias:
Tannin muaj zog tshaj dawb radical scavenging peev xwm ntawm ABTS ntxiv thiab DPPH.
Goji polysaccharide thiab 1.0 mg/mL ginsenoside muaj peev xwm tshem tawm hydroxyl radicals.
Ginsenosides muaj zog scavenging peev xwm superoxide anion dawb radicals.
Lub peev xwm txo tag nrho ntawm tannin muaj zog, ua raws li Goji polysaccharide.
Tannins muaj peev xwm ua kom muaj zog chelate hlau ions, ua raws li ginsenosides.
Thawj Tswj Xyuas Cheeb Tsam
DPPH dawb radical scavenging muaj peev xwm ntawm tannin tau zoo dua.
Astaxanthin muaj DPPH dawb radical scavenging muaj peev xwm zoo dua.
Lub superoxide anion dawb radical scavenging peev xwm ntawm ginsenosides yog qhov zoo.
Wolfberry polysaccharide muaj peev xwm zoo dua hydroxyl radical scavenging thiab tag nrho cov peev xwm txo tau.
Cov ntsiab lus
The four kinds of natural antioxidants have the anti-oxidative ability of lipids from strong to weak: tannin > Wolfberry polysaccharide > ginsenoside >astaxanthin tshuaj.