Li-Theaflavin (li-TF)leLi-Thearubigins (TRs)ke lihlopha tse peli tse fapaneng tsa metsoako ea polyphenolic e fumanoang teeng e ntšo, e 'ngoe le e 'ngoe e na le metsoako le thepa e ikhethang ea lik'hemik'hale. Ho utloisisa liphapang lipakeng tsa metsoako ena ho bohlokoa bakeng sa ho utloisisa menehelo ea eona ka bomong litšobotsing le melemong ea bophelo bo botle ba tee e ntšo. Sengoloa sena se ikemiselitse ho fana ka tlhahlobo e felletseng ea liphapang lipakeng tsa Theaflavins le Thearubigins, tse tšehetsoang ke bopaki bo tsoang lipatlisisong tse amehang.
Li-theaflavin le li-thearubigin ka bobeli ke li-flavonoid tse tlatsetsang 'mala, tatso le' mele oa tee.Li-theaflavin li lamunu kapa li khubelu, 'me li-thearubigin li sootho bo bofubelu. Li-theaflavin ke li-flavonoid tsa pele tse hlahang nakong ea oxidation, ha li-thearubigin li hlaha hamorao. Li-theaflavin li kenya letsoho ho astringency ea tee, khanya le ho phatsima ha eona, ha li-thearubigin li kenya letsoho matleng a eona le ho ikutloa ha molomo.
Li-theaflavin ke sehlopha sa metsoako ea polyphenolic e tlatsetsang 'mala, tatso le thepa e ntlafatsang bophelo ba tee e ntšo. Li thehoa ka ho fokotsa oxidative ea catechins nakong ea ts'ebetso ea ho belisoa ha makhasi a tee. Li-theaflavin li tsebahala ka litlamorao tsa tsona tsa antioxidant le anti-inflammatory, tse amanang le melemo e fapaneng ea bophelo bo botle, ho kenyeletsoa tšireletso ea pelo le methapo ea mali, thepa ea anti-cancer, le litlamorao tse ka bang teng tsa anti-botsofali.
Ka hlakoreng le leng,Thearubiginske metsoako e meholo ea polyphenolic e boetse e nkiloeng ho oxidation ea polyphenols ea tee nakong ea ho belisoa ha makhasi a tee. Li ikarabella bakeng sa 'mala o mofubelu o ruileng le tatso e ikhethang ea tee e ntšo. Thearubigins e 'nile ea amahanngoa le thepa ea antioxidant, anti-inflammatory, le e sireletsang letlalo, e leng se etsang hore e be taba e thahasellisang lefapheng la ho thibela botsofali le tlhokomelo ea letlalo.
Ka lik'hemik'hale, Theaflavins li fapane le Thearubigins ho latela sebopeho le sebopeho sa tsona sa limolek'hule. Theaflavins ke metsoako ea dimeric, ho bolelang hore motsoako oa li-unit tse peli tse nyane lia li etsa, ha Thearubigins e le metsoako e meholo ea polymeric e bakoang ke polymerization ea li-flavonoid tse fapaneng nakong ea ho belisoa ha tee. Ho se tšoane hona ha sebopeho ho tlatsetsa mesebetsing ea tsona e fapaneng ea baeloji le litlamorao tse ka bang teng bophelong.
| Li-theaflavin | Thearubigins | |
| 'Mala | Lamunu kapa khubelu | Bofubelu-bosootho |
| Tlatsetso ho tee | Ho ba le khanya e feteletseng, khanya le ho phatsima | Matla le ho ikutloa molomong |
| Sebopeho sa lik'hemik'hale | E hlalositsoe hantle | Tse sa tšoaneng le tse sa tsejoeng |
| Peresente ea boima bo omileng ka tee e ntšo | 1–6% | 10–20% |
Li-theaflavin 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 e ntšo ea boleng bo holimo. Nako ea ho belisa ke ntlha ea bohlokoa ho bolokeng karolelano ea TF:TR.
Li-theaflavin le li-thearubigin ke lihlahisoa tse ikhethang tse entsoeng ka li-catechin nakong ea oxidation ea enzyme ea tee nakong ea tlhahiso. Li-theaflavin li fa tee 'mala oa lamunu kapa o mofubelu-lamunu 'me li kenya letsoho ho ikutloeng ha molomo le ho thehoa ha tranelate e ngata. Ke metsoako ea dimeric e nang le masapo a benzotropolone a entsoeng ka ho kopana ha lipara tse khethiloeng tsa li-catechin. Oxidation ea lesale la B la (−)-epigallocatechin kapa (−)-epigallocatechin gallate e lateloa ke tahlehelo ea CO2 le ho kopana ka nako e le 'ngoe le lesale la B la molek'hule oa (−)-epicatechin kapa (−)-epicatechin gallate (Setšoantšo sa 12.2). Li-theaflavin tse 'ne tse kholo li fumanoe teeng e ntšo: theaflavin, theaflavin-3-monogallate, theaflavin-3′-monogallate, le theaflavin-3,3′-digallate. Ho feta moo, li-stereoisomers le li-derivatives tsa tsona li ka ba teng. Haufinyane tjena, ho tlalehiloe boteng ba theaflavin trigallate le tetragallate ka teeng e ntšo (Chen et al., 2012). Theaflavins e ka oxidized le ho feta. Mohlomong ke tsona tse etellang pele ho thehoeng ha polymeric thearubigins. Leha ho le jwalo, mokgwa wa karabelo ha o tsejwe ho fihlela jwale. Thearubigins ke di-pigment tse kgubedu-sootho kapa tse sootho bo lefifi ka teeng e ntšo, dikahare tsa tsona di etsa ho fihlela ho 60% ya boima bo omileng ba tee e kentsweng.
Mabapi le melemo ea bophelo bo botle, Theaflavins e ithutiloe ka botlalo bakeng sa karolo ea eona e ka bang teng ho ntlafatseng bophelo bo botle ba pelo le methapo ea mali. Lipatlisiso li bontšitse hore Theaflavins e ka thusa ho fokotsa maemo a k'holeseterole, ho ntlafatsa ts'ebetso 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 le methapo ea mali. Ho feta moo, Theaflavins e bontšitse bokhoni ba ho thibela kholo ea lisele tsa mofetše 'me e ka ba le thepa ea ho loantša lefu la tsoekere.
Ka lehlakoreng le leng, Thearubigins e 'nile ea amahanngoa le litlamorao tsa antioxidant le anti-inflammatory, tse bohlokoa bakeng sa ho loantša khatello ea oxidative le ho ruruha 'meleng. Litšobotsi tsena li ka kenya letsoho liphellong tse ka bang teng tsa Thearubigins khahlanong le botsofali le tšireletso ea letlalo, e leng se etsang hore e be taba ea thahasello tlhokomelong ea letlalo le lipatlisisong tse amanang le botsofali.
Qetellong, Theaflavins le Thearubigins ke metsoako e ikhethang ea polyphenolic e fumanoang teeng e ntšo, e 'ngoe le e 'ngoe e na le metsoako e ikhethang ea lik'hemik'hale le melemo e ka bang teng bophelong bo botle. Leha Theaflavins e 'nile ea amahanngoa le bophelo bo botle ba pelo le methapo ea mali, thepa ea ho loantša kankere, le litlamorao tse ka bang teng tsa ho loantša lefu la tsoekere, Thearubigins e 'nile ea amahanngoa le thepa ea ho thibela ho ruruha, ho thibela ho ruruha, le ho sireletsa letlalo, e leng se etsang hore e be taba ea thahasello lipatlisisong tsa ho thibela botsofali le tlhokomelo ea letlalo.
Litšupiso:
Hamilton-Miller JM. Matla a tee a ho loantša likokoana-hloko (Camellia sinensis L.). Li-antimicrob Agents Chemother. 1995;39(11):2375-2377.
Khan N, Mukhtar H. Li-polyphenol tsa tee bakeng sa ho khothaletsa bophelo bo botle. Life Sci. 2007;81(7):519-533.
Mandel S, Youdim MB. Li-polyphenol tsa Catechin: ho senyeha ha methapo le tshireletso ya methapo mafung a senyehang methapo. Free Radic Biol Med. 2004;37(3):304-17.
Jochmann N, Baumann G, Stangl V. Tee e tala le lefu la pelo le methapo ea mali: ho tloha lipheong tsa limolek'hule ho ea bophelong bo botle ba batho. Curr Opin Clin Nutr Metab Care. 2008;11(6):758-765.
Nako ea poso: Mots'eanong-11-2024
