Theaflavins (TFs)leThearubigins (TRs)ke lihlopha tse peli tse fapaneng tsa metsoako ea polyphenolic e fumanoang tee e ntšo, e 'ngoe le e' ngoe e na le metsoako e ikhethang ea lik'hemik'hale le thepa. Ho utloisisa phapang pakeng tsa metsoako ena ke habohlokoa bakeng sa ho utloisisa menehelo ea bona ka bomong ho litšobotsi le melemo ea bophelo bo botle ba tee e ntšo. Sengoliloeng sena se ikemiselitse ho fana ka tlhahlobo e felletseng ea phapang lipakeng tsa Theaflavins le Thearubigins, e tšehetsoeng ke bopaki bo tsoang lipatlisisong tse amehang.
Theaflavins le thearubigins ka bobeli ke flavonoids tse tlatsetsang 'mala, tatso le' mele oa tee.Theaflavins li na le lamunu kapa tse khubelu, 'me thearubigins li khubelu-sootho. Theaflavins ke li-flavonoid tsa pele tse hlahang nakong ea oxidation, athe thearubigins li hlaha hamorao. Theaflavins e thusa tee hore e be matla, e bebebe le hore e be mahlahahlaha, athe thearubigins e thusa hore e be matla le hore e utloe molomo.
Theaflavins ke sehlopha sa metsoako ea polyphenolic e tlatsetsang 'mala, tatso le thepa ea bophelo bo botle ea tee e ntšo. Li thehoa ka ho fokotseha ha oxidative ea li-catechin nakong ea ho belisoa ha makhasi a tee. Theaflavins e tsebahala ka litlamorao tsa eona tsa antioxidant le anti-inflammatory, tse amanang le melemo e fapaneng ea bophelo bo botle, ho kenyeletsoa ts'ireletso ea pelo le methapo, thepa e khahlanong le mofets'e, le litlamorao tse ka bang teng tse thibelang botsofali.
Ka hlakoreng le leng,Thearubiginske metsoako e meholo ea polyphenolic eo hape e nkiloeng ho oxidation ea tee polyphenols nakong ea ho belisoa ha makhasi a tee. Ba ikarabella bakeng sa 'mala o mofubelu o ruileng le tatso e ikhethang ea tee e ntšo. Thearubigins e 'nile ea amahanngoa le li-antioxidant, anti-inflammatory, le thepa e sireletsang letlalo, e leng se etsang hore e be taba ea thahasello lefapheng la ho thibela botsofali le ho hlokomela letlalo.
Ka lik'hemik'hale, Theaflavins e fapane le Thearubigins ho latela sebopeho sa limolek'hule le sebopeho sa tsona. Theaflavins ke metsoako ea dimeric, ho bolelang hore motsoako oa likaroloana tse peli tse nyane lia li theha, athe Thearubigins ke metsoako e meholo ea polymeric e hlahisoang ke polymerization ea li-flavonoid tse fapaneng nakong ea beliso ea tee. Ho se tšoane hona ha sebopeho ho kenya letsoho mesebetsing ea bona e fapaneng ea tlhaho le litlamorao tse ka bang teng tsa bophelo bo botle.
| Theaflavins | Thearubigins | |
| Mmala | Orange kapa khubelu | Bofubelu-bosootho |
| Tlatsetso ho tee | Astringency, khanya, le briskness | Matla le ho utloa molomo |
| Sebopeho sa lik'hemik'hale | E hlalositsoe hantle | E fapaneng ebile e sa tsejoe |
| Peresente ea boima bo omileng ka tee e ntšo | 1–6% | 10–20% |
Theaflavins ke sehlopha se seholo sa metsoako e sebelisoang ho lekola boleng ba tee e ntšo. Karolelano ea theaflavins ho thearubigins (TF:TR) e lokela ho ba 1:10 ho isa ho 1:12 bakeng sa tee ea boleng bo holimo e ntšo. Nako ea ho belisoa ke ntlha e kholo ea ho boloka tekanyo ea TF:TR.
Theaflavins le thearubigins ke lihlahisoa tse ikhethang tse entsoeng ho tsoa ho likatekisine nakong ea enzymatic oxidation ea tee nakong ea tlhahiso. Theaflavins e fana ka 'mala o mofubelu oa lamunu kapa oa lamunu ho tee 'me e kenya letsoho ho utloahala ha molomo le ho hlahisa tranelate. Ke metsoako ea dimeric e nang le skeleton ea benzotropolone e entsoeng ho tsoa ho co-oxidation ea lipara tse khethiloeng tsa likatekisine. Oxidation ea selikalikoe sa B sa (−)-epigallocatechin kapa (−)-epigallocatechin gallate e lateloa ke tahlehelo ea CO2 le ho kopanngoa ka nako e le 'ngoe le lesale la B la (-) -epicatechin kapa (-) -epicatechin gallate molek'hule (Setšoantšo sa 12. ). Li-theaflavin tse kholo tse 'ne li fumanoe ka tee e ntšo: theaflavin, theaflavin-3-monogallate, theaflavin-3'-monogallate, le theaflavin-3,3′-digallate. Ho feta moo, li-stereoisomer tsa bona le li-derivatives li ka ba teng. Haufinyane tjena, boteng ba theaflavin trigallate le tetragallate ka tee e ntšo bo tlalehiloe (Chen et al., 2012). Theaflavins e ka ba oxidized ho feta. Mohlomong hape ke li-precursors tsa ho thehoa ha polymeric thearubigins. Leha ho le joalo, mokhoa oa ho itšoara ha o tsejoe ho fihlela joale. Thearubigins ke li-pigments tse bofubelu bo sootho kapa tse sootho ka tee e ntšo, litaba tsa tsona li nka karolo ea 60% ea boima bo omileng ba infusion ea tee.
Mabapi le melemo ea bophelo bo botle, Theaflavins e 'nile ea ithutoa ka mokhoa o pharaletseng bakeng sa karolo ea bona e ka' nang ea e-ba teng ho khothalletsa bophelo bo botle ba pelo. Lipatlisiso li bontšitse hore Theaflavins e ka thusa ho fokotsa boemo ba k'holeseterole, ho ntlafatsa tšebetso ea methapo ea mali, le ho ba le litlamorao tse khahlanong le ho ruruha, tseo kaofela li leng molemo bakeng sa bophelo bo botle ba pelo. Ho feta moo, Theaflavins e bonts'itse monyetla oa ho thibela kholo ea lisele tsa mofets'e mme e kanna ea ba le thepa ea anti-diabetic.
Ka lehlakoreng le leng, Thearubigins e amahanngoa le litlamorao tsa antioxidant le anti-inflammatory, tse bohlokoa bakeng sa ho loants'a khatello ea oxidative le ho ruruha 'meleng. Lintho tsena li ka kenya letsoho molemong oa ho thibela botsofali le ho sireletsa letlalo la Thearubigins, e leng se etsang hore e be taba ea thahasello ho skincare le lipatlisiso tse amanang le lilemo.
Qetellong, Theaflavins le Thearubigins ke metsoako e ikhethang ea polyphenolic e fumanoang tee e ntšo, e 'ngoe le e' ngoe e na le metsoako e ikhethang ea lik'hemik'hale le melemo e ka bang teng bophelong. Le hoja Theaflavins e 'nile ea amahanngoa le bophelo bo botle ba pelo, thepa e khahlanong le mofetše, le liphello tse ka bang teng khahlanong le lefu la tsoekere, Thearubigins e amahanngoa le antioxidant, anti-inflammatory, le thepa ea tšireletso ea letlalo, e leng se etsang hore e be taba ea thahasello ea ho thibela botsofali le skincare. lipatlisiso.
Litšupiso:
Hamilton-Miller JM. Lintho tse thibelang likokoana-hloko tsa tee (Camellia sinensis L.). Antimicrob Agents Chemother. 1995;39(11):2375-2377.
Khan N, Mukhtar H. Tea polyphenols bakeng sa ho khothaletsa bophelo bo botle. Life Sci. 2007;81(7):519-533.
Mandel S, Youdim MB. Catechin polyphenols: neurodegeneration le neuroprotection ho mafu a neurodegenerative. Mahala Radic Biol Med. 2004;37(3):304-17.
Jochmann N, Baumann G, Stangl V. Tee e tala le lefu la pelo: ho tloha lipakaneng tsa limolek'hule ho ea bophelong ba batho. Kena Letlotlo la Clin Nutr Metab Care. 2008;11(6):758-765.
Nako ea poso: May-11-2024
