Theaflavins (TFs)uyeThearubigins (TRs)mapoka maviri akasiyana epolyphenolic compounds anowanikwa mublack tii, rimwe nerimwe riine rakasiyana makemikari maumbirwo uye zvimiro.Kunzwisisa mutsauko uripo pakati pemakomponi aya kwakakosha kuti unzwisise zvipo zvavo zvega kune hunhu uye hutano hunobatsira hweblack tii.Ichi chinyorwa chine chinangwa chekupa ongororo yakazara yekusiyana pakati peTheaflavins neThearubigins, inotsigirwa nehumbowo kubva kutsvagiridzo yakakodzera.
Theaflavins uye thearubigins ese ari maviri flavonoids anobatsira kune ruvara, kunaka, uye muviri wetii.Theaflavins ndeyeorenji kana tsvuku, uye thearubigins itsvuku-ruvara.Theaflavins ndiyo yekutanga flavonoid kubuda panguva yeoxidation, nepo thearubigins inobuda gare gare.Theaflavins inobatsira mukusimba kwetii, kupenya, uye briskness, nepo thearubigins inobatsira pakusimba kwayo uye kunzwa-mukanwa.
Theaflavins ikirasi yepolyphenolic komisheni iyo inobatsira kune ruvara, kuravira, uye hutano-kusimudzira zvimiro zveblack tii.Iwo anoumbwa kuburikidza neiyo oxidative dimerization yekatechins panguva yekuvirisa maitiro etii mashizha.Theaflavins inozivikanwa nokuda kwe antioxidant uye anti-inflammatory effects, iyo yakabatanidzwa kune zvakasiyana-siyana zvehutano, kusanganisira kudzivirira kwemwoyo, anti-cancer properties, uye zvinogona kupesana nekukwegura.
Pane rimwe divi,Thearubiginsiwo mahombe epolyphenolic makomisheni ayo zvakare akatorwa kubva kune oxidation yetii polyphenols panguva yekuviriswa kwemashizha etii.Ivo vane basa rekupfuma dzvuku ruvara uye hunhu hwekunaka kweblack tii.Thearubigins yakabatanidzwa ne antioxidant, anti-inflammatory, uye ganda-inodzivirira zvivakwa, zvichiita kuti ive nyaya yekufarira mumunda weanti-kuchembera uye skincare.
Kemikari, Theaflavins akasiyana kubva kuThearubigins maererano nemaitiro avo mamorekuru uye kuumbwa.Theaflavins idimeric komisheni, zvichireva kuti musanganiswa wemayuniti maviri madiki anoaumba, nepo maThearubigins akakura epolymeric makomisheni anokonzerwa nepolymerization yemhando dzakasiyana dzeflavonoid panguva yekuvirisa tii.Uku kusafanana kwemaitiro kunobatsira kune zvakasiyana-siyana zviitiko zvebhayoloji uye zvinogona kuitika zvehutano.
| Theaflavins | Thearubigins | |
| Color | Orange kana tsvuku | Tsvuku-ruvara |
| Mupiro kune tii | Astringency, kupenya, uye briskness | Simba uye muromo-kunzwa |
| Chimiro chemakemikari | Zvakanyatsotsanangurwa | Heterogeneous uye isingazivikanwe |
| Percentage yehuremu hwakaoma mu black tea | 1–6% | 10–20% |
Theaflavins ndiro boka guru remakomboni anoshandiswa kuongorora kunaka kwetii nhema.Huyero hwe theaflavins kune thearubigins (TF: TR) inofanira kuva 1:10 kusvika 1:12 yemhando yepamusoro yetii nhema.Nguva yekuvirisa chinhu chikuru mukuchengeta chiyero cheTF:TR.
Theaflavins uye thearubigins hunhu zvigadzirwa zvakaumbwa kubva makatechini panguva ye enzymatic oxidation yetii panguva yekugadzira.Theaflavins inopa orenji kana orenji-ruvara dzvuku kune tii uye inobatsira mukunzwa muromo uye chiyero chekugadzirwa kwekrimu.Iwo ma dimeric makomisheni ane benzotropolone skeleton iyo inoumbwa kubva kuco-oxidation yemapeya akasarudzwa ekatechini.Iko oxidation yeB ring ye (-) -epigallocatechin kana (-) -epigallocatechin gallate inoteverwa nekurasikirwa kweCO2 uye panguva imwe chete kusanganiswa neB ring ye (-) -epicatechin kana (-) -epicatechin gallate molecule (Mufananidzo 12. )Zvina zvikuru theaflavins zvakaonekwa mutii nhema: theaflavin, theaflavin-3-monogallate, theaflavin-3'-monogallate, uye theaflavin-3,3'-digallate.Pamusoro pezvo, ma stereoisomers avo uye zvinobva kwavari zvinogona kuvapo.Munguva pfupi yapfuura, kuvapo kweaflavin trigallate uye tetragallate mutema tii yakashumwa (Chen et al., 2012).Theaflavins inogona kuwedzera oxidized.Ivo vangangove zvakare vanotangira pakuumbwa kwepolymeric thearubigins.Nekudaro, iyo meshini yekuita haisati yazivikanwa kusvika zvino.Thearubigins matsvuku-brown kana rima-brown pigment mune dema tii, izvo zvirimo zvinosvika kusvika 60% yehuremu hwakaoma hwetii infusion.
Panyaya yehutano hwekubatsira, Theaflavins dzakadzidzwa zvakanyanya nekuda kwebasa ravo rekusimudzira hutano hwemoyo.Tsvagiridzo yakaratidza kuti Theaflavins inogona kubatsira kuderedza cholesterol mazinga, kuvandudza tsinga yeropa, uye kuita anti-kuzvimba mhedzisiro, izvo zvese zvinobatsira pahutano hwemoyo.Pamusoro pezvo, Theaflavins yakaratidza kugona kutadzisa kukura kwekenza maseru uye inogona kunge iine anti-diabetes.
Kune rimwe divi, Thearubigins yakabatanidzwa ne antioxidant uye anti-inflammatory effects, izvo zvakakosha pakurwisa oxidative kusagadzikana uye kuzvimba mumuviri.Izvi zvivakwa zvinogona kubatsira kune inogona kupikisa-kuchembera uye ganda-inodzivirira mhedzisiro yeThearubigins, ichivaita nyaya yekufarira skincare uye tsvagiridzo inoenderana nezera.
Mukupedzisa, Theaflavins neThearubigins akasiyana polyphenolic makomisheni anowanikwa mune nhema tii, imwe neimwe iine yakasarudzika makemikari maumbirwo uye zvingangoita hutano hunobatsira.Kunyange zvazvo Theaflavins yakabatanidzwa nehutano hwemwoyo, anti-cancer properties, uye zvingave zvinopesana nechirwere cheshuga, Thearubigins yakabatanidzwa ne antioxidant, anti-inflammatory, uye ganda-inodzivirira zvinhu, zvichiita kuti ive nyaya yekufarira mukurwisa-kukwegura uye skincare. research.
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Nguva yekutumira: May-11-2024
