Theaflavins (TFs)ndiThearubigins (TRs)ndi magulu awiri osiyana a mankhwala a polyphenolic omwe amapezeka mu tiyi wakuda, aliyense ali ndi mankhwala apadera komanso katundu wake. Kumvetsetsa kusiyana pakati pa mankhwalawa ndikofunikira kuti mumvetsetse zomwe amathandizira pamikhalidwe ndi thanzi la tiyi wakuda. Nkhaniyi ikufuna kupereka kufufuza mwatsatanetsatane za kusiyana pakati pa Theaflavins ndi Thearubigins, mothandizidwa ndi umboni wochokera kufukufuku woyenera.
Theaflavins ndi thearubigins onse ndi ma flavonoids omwe amathandizira ku mtundu, kukoma, ndi thupi la tiyi.Theaflavins ndi lalanje kapena ofiira, ndipo thearubigins ndi ofiira-bulauni. Theaflavins ndi ma flavonoid oyamba kutulukira panthawi ya okosijeni, pamene thearubigins amatuluka pambuyo pake. Theaflavins amathandizira kuti tiyiyo ikhale yopepuka, yonyezimira, komanso yonyezimira, pomwe ma thearubigins amathandizira kuti tiyi ikhale yamphamvu komanso imvekere mkamwa.
Theaflavins ndi gulu la mankhwala a polyphenolic omwe amathandizira kuti tiyi wakuda ukhale wamtundu, kukoma, komanso kulimbikitsa thanzi. Iwo aumbike mwa oxidative dimerization wa katekisimu pa nayonso mphamvu ndondomeko masamba tiyi. Theaflavins amadziwika chifukwa cha antioxidant ndi anti-inflammatory effects, zomwe zakhala zikugwirizana ndi ubwino wambiri wathanzi, kuphatikizapo chitetezo cha mtima, anti-cancer properties, ndi zotsatira zotsutsana ndi ukalamba.
Mbali inayi,Thearubiginsndi mankhwala akuluakulu a polyphenolic omwe amachokeranso ku makutidwe ndi okosijeni a tiyi a polyphenols panthawi ya kuwira kwa masamba a tiyi. Iwo ali ndi udindo wa mtundu wofiira wolemera ndi khalidwe la kukoma kwa tiyi wakuda. Thearubigins akhala akugwirizanitsidwa ndi antioxidant, anti-inflammatory, ndi zoteteza khungu, zomwe zimawapangitsa kukhala okhudzidwa ndi gawo la anti-kukalamba ndi skincare.
Mwachilengedwe, Theaflavins ndi yosiyana ndi Thearubigins malinga ndi kapangidwe kake ka maselo ndi kapangidwe kawo. Theaflavins ndi mankhwala a dimeric, kutanthauza kuti kuphatikiza kwa timagulu ting'onoting'ono tiwiri timapanga, pomwe Thearubigins ndi mankhwala akuluakulu a polymeric obwera chifukwa cha polymerization ya ma flavonoids osiyanasiyana panthawi yowitsa tiyi. Kusiyanasiyana kwapangidwe kumeneku kumathandizira ku zochitika zosiyanasiyana zamoyo komanso zotsatira za thanzi.
| Theaflavins | Thearubigins | |
| Mtundu | Orange kapena wofiira | Chofiira-bulauni |
| Kupereka kwa tiyi | Astringency, kuwala, ndi briskness | Mphamvu ndi pakamwa-kumva |
| Kapangidwe ka mankhwala | Zofotokozedwa bwino | Zosiyanasiyana komanso zosadziwika |
| Peresenti ya kulemera kowuma mu tiyi wakuda | 1-6% | 10-20% |
Theaflavins ndi gulu lalikulu la mankhwala omwe amagwiritsidwa ntchito poyesa mtundu wa tiyi wakuda. Chiyerekezo cha theaflavins kwa thearubigins (TF:TR) chikuyenera kukhala 1:10 mpaka 1:12 pa tiyi wakuda wapamwamba kwambiri. Nthawi yowotchera ndi chinthu chofunikira kwambiri pakusunga chiŵerengero cha TF:TR.
Theaflavins ndi thearubigins ndi mankhwala omwe amapangidwa kuchokera ku makatekini panthawi ya enzymatic oxidation ya tiyi popanga. Theaflavins amapereka mtundu wofiira wa lalanje kapena lalanje ku tiyi ndipo amathandizira kuti pakamwa pakhale kumveka komanso kupanga zonona. Ndi mankhwala a dimeric omwe ali ndi mafupa a benzotropolone omwe amapangidwa kuchokera ku co-oxidation ya awiriawiri osankhidwa a makatekini. Kutsekemera kwa mphete ya B ya (-) -epigallocatechin kapena (-) -epigallocatechin gallate kumatsatiridwa ndi kutayika kwa CO2 ndi kusakanikirana kwa nthawi imodzi ndi B mphete ya (-) -epicatechin kapena (-) -epicatechin gallate molekyulu (Chithunzi 122. ). Ma theaflavin akuluakulu anayi adziwika mu tiyi wakuda: theaflavin, theaflavin-3-monogallate, theaflavin-3'-monogallate, ndi theaflavin-3,3′-digallate. Kuphatikiza apo, ma stereoisomers awo ndi zotumphukira zimatha kupezeka. Posachedwapa, kupezeka kwa theaflavin trigallate ndi tetragallate mu tiyi wakuda kudanenedwa (Chen et al., 2012). Theaflavins akhoza kuwonjezeredwa oxidized. Mwinanso ndizomwe zimayambira pakupanga ma polymeric thearubigins. Komabe, mpaka pano sizikudziwika kuti zimagwirira ntchito bwanji. Thearubigins ndi mitundu yofiira-bulauni kapena yakuda-bulauni mu tiyi wakuda, zomwe zili mkati mwake zimafikira 60% ya kulemera kowuma kwa kulowetsedwa kwa tiyi.
Ponena za ubwino wathanzi, Theaflavins adaphunzira mozama chifukwa cha zomwe angathe kuchita polimbikitsa thanzi la mtima. Kafukufuku wasonyeza kuti Theaflavins angathandize kuchepetsa mlingo wa kolesterolini, kupititsa patsogolo kayendedwe ka mitsempha ya magazi, komanso kukhala ndi zotsatira zotsutsana ndi kutupa, zonse zomwe zimakhala zopindulitsa pa thanzi la mtima. Kuphatikiza apo, Theaflavins awonetsa kuthekera koletsa kukula kwa maselo a khansa ndipo amatha kukhala ndi anti-diabetes.
Kumbali inayi, Thearubigins adalumikizidwa ndi antioxidant ndi anti-inflammatory effects, zomwe ndizofunikira kwambiri polimbana ndi kupsinjika kwa okosijeni ndi kutupa mthupi. Zinthuzi zitha kuthandizira kuti a Thearubigins akhale ndi zotsutsana ndi ukalamba komanso zoteteza khungu, zomwe zimawapangitsa kukhala ndi chidwi ndi kafukufuku wokhudzana ndi ukalamba.
Pomaliza, Theaflavins ndi Thearubigins ndi mankhwala apadera a polyphenolic omwe amapezeka mu tiyi wakuda, iliyonse ili ndi mankhwala apadera komanso ubwino wathanzi. Ngakhale Theaflavins adalumikizidwa ndi thanzi la mtima, anti-cancer properties, ndi zotsatira zotsutsana ndi matenda a shuga, Thearubigins adagwirizanitsidwa ndi antioxidant, anti-inflammatory, ndi chitetezo cha khungu, kuwapangitsa kukhala okhudzidwa ndi odana ndi ukalamba ndi skincare. kafukufuku.
Zolozera:
Hamilton-Miller JM. Antimicrobial katundu wa tiyi (Camellia sinensis L.). Antimicrob Agents Chemother. 1995;39(11):2375-2377.
Khan N, Mukhtar H. Tea polyphenols zolimbikitsa thanzi. Moyo Sci. 2007;81(7):519-533.
Mandel S, Youdim MB. Catechin polyphenols: neurodegeneration ndi neuroprotection mu matenda a neurodegenerative. Free Radic Biol Med. 2004;37(3):304-17.
Jochmann N, Baumann G, Stangl V. Tiyi wobiriwira ndi matenda amtima: kuchokera ku zolinga za maselo kupita ku thanzi laumunthu. Curr Opin Clin Nutr Metab Care. 2008;11(6):758-765.
Nthawi yotumiza: May-11-2024
