Theaflavins (TFs)aThearubigins (TRs)ʻelua pūʻulu ʻokoʻa o nā pūhui polyphenolic i loaʻa i ke kī ʻeleʻele, kēlā me kēia me nā haku mele a me nā waiwai.ʻO ka hoʻomaopopo ʻana i ka ʻokoʻa ma waena o kēia mau pūhui he mea nui ia no ka hoʻomaopopo ʻana i kā lākou hāʻawi pilikino i nā ʻano a me nā pono olakino o ke kī ʻeleʻele.Ke manaʻo nei kēia ʻatikala e hāʻawi i kahi ʻimi holoʻokoʻa o nā ʻokoʻa ma waena o Theaflavins a me Thearubigins, i kākoʻo ʻia e nā hōʻike mai ka noiʻi kūpono.
ʻO Theaflavins a me thearubigin nā flavonoids e kōkua i ke kala, ka ʻono, a me ke kino o ke kī.He ʻalani a ʻulaʻula paha nā theaflavins, a ʻulaʻula-ʻulaʻula nā thearubigin.ʻO Theaflavins nā flavonoids mua e puka mai i ka wā o ka hoʻoheheʻe ʻana, aʻo nā thearubigin e puka mai ma hope.Hāʻawi ka Theaflavins i ka astringency, ʻālohilohi, a me ka briskness o ke kī, ʻoiai ʻo thearubigin e kōkua i kona ikaika a me kona waha.
ʻO Theaflavins kahi papa o nā pūhui polyphenolic e hāʻawi i ke kala, ʻono, a me nā waiwai hoʻoikaika olakino o ke kī ʻeleʻele.Hoʻokumu ʻia lākou ma o ka dimerization oxidative o catechins i ka wā o ka fermentation o nā lau kī.ʻIke ʻia nā Theaflavins no ko lākou mau antioxidant a me nā hopena anti-inflammatory, i hoʻopili ʻia i nā pono olakino like ʻole, me ka pale ʻana i ka cardiovascular, nā waiwai anti-cancer, a me nā hopena anti-aging.
Ma ka lima ʻē aʻe,Thearubiginshe mau pūhui polyphenolic nui i loaʻa pū mai ka hoʻoheheʻe ʻia ʻana o nā polyphenols kī i ka wā fermentation o nā lau kī.No lākou ke kuleana o ka ʻulaʻula momona a me ke ʻano o ke kī ʻeleʻele.Hoʻopili ʻia nā Thearubigin me nā mea antioxidant, anti-inflammatory, a me nā waiwai pale-ʻili, e hoʻolilo iā lākou i kumuhana hoihoi i ke kahua o ka anti-aging a me ka mālama ʻili.
ʻO ke kemika, ʻokoʻa nā Theaflavins mai Thearubigin ma ke ʻano o kā lākou molecular structure a me ka haku mele.ʻO Theaflavins nā pūhui dimeric, ʻo ia hoʻi ka hui ʻana o ʻelua mau ʻāpana liʻiliʻi e hoʻokumu iā lākou, ʻoiai ʻo Thearubigin nā pūhui polymeric nui aʻe ma muli o ka polymerization o nā flavonoids like ʻole i ka wā fermentation ti.Hāʻawi kēia ʻano like ʻole i kā lākou mau hana olaola like ʻole a me nā hopena olakino.
| ʻO Theaflavins | Thearubigins | |
| kalakala | ʻAlani a ʻulaʻula paha | ʻulaʻula-ʻulaʻula |
| Hāʻawi i ke kī | Astringency, kukui, a me ka briskness | Ka ikaika a me ka waha |
| ʻO ke kinona | wehewehe pono | Heterogene a ʻike ʻole ʻia |
| Pākēneka o ke kaumaha maloʻo i ke kī ʻeleʻele | 1–6% | 10–20% |
ʻO Theaflavins ka hui nui o nā pūhui i hoʻohana ʻia e loiloi i ka maikaʻi o ke kī ʻeleʻele.Pono ka ratio o theaflavins a me thearubigin (TF:TR) he 1:10 a 1:12 no ke kī ʻeleʻele kiʻekiʻe.ʻO ka manawa fermentation kahi mea nui i ka mālama ʻana i ka ratio TF:TR.
ʻO Theaflavins a me thearubigin nā huahana i hoʻokumu ʻia mai nā catechins i ka wā o ka oxidation enzymatic o ke kī i ka wā hana.Hāʻawi ka Theaflavins i ka ʻalani a i ʻole ka ʻulaʻula ʻulaʻula i ke kī a hāʻawi i ka manaʻo o ka waha a me ka nui o ka hoʻokumu ʻana o ka ʻaila.He mau pūhui dimeric lākou i loaʻa i kahi iwi benzotropolone i hoʻokumu ʻia mai ka co-oxidation o nā paʻa catechins i koho ʻia.ʻO ka oxidation o ke apo B o kekahi (-) -epigallocatechin a i ʻole (-) -epigallocatechin gallate e ukali ʻia e ka nalowale o CO2 a me ka hui pū ʻana me ke apo B o (-) -epicatechin a i ʻole (-) -epicatechin gallate mole (Figure 12.2). ).ʻEhā mau theaflavins nui i ʻike ʻia i ke kī ʻeleʻele: theaflavin, theaflavin-3-monogallate, theaflavin-3′-monogallate, a me theaflavin-3,3′-digallate.Eia hou, hiki i kā lākou stereoisomers a me nā derivatives ke hele mai.I kēia mau lā, ua hōʻike ʻia ka hele ʻana o ka theaflavin trigallate a me ka tetragallate i ke kī ʻeleʻele (Chen et al., 2012).Hiki i nā theaflavins ke hoʻoheheʻe hou ʻia.ʻO lākou paha nā mea mua no ka hoʻokumu ʻana i nā thearubigin polymeric.Eia naʻe, ʻaʻole ʻike ʻia ke ʻano o ka pane ʻana a hiki i kēia manawa.ʻO Thearubigins nā puaʻa ʻulaʻula a ʻeleʻele paha i loko o ke kī ʻeleʻele, ʻo kā lākou ʻike e pili ana i ka 60% o ke kaumaha maloʻo o ka infusion kī.
Ma ke ʻano o nā pono olakino, ua aʻo nui ʻia ʻo Theaflavins no kā lākou kuleana kūpono i ka hoʻolaha ʻana i ke olakino cardiovascular.Ua manaʻo ʻia ka noiʻi e hiki i Theaflavins ke kōkua i ka hoʻohaʻahaʻa ʻana i nā pae cholesterol, hoʻomaikaʻi i ka hana ʻana o ke kīʻaha koko, a hoʻohana i nā hopena anti-inflammatory, ʻo ia mau mea a pau e pono ai ke olakino cardiovascular.Eia kekahi, ua hōʻike ʻo Theaflavins i ka hiki ke pale i ka ulu ʻana o nā maʻi maʻi a loaʻa paha nā waiwai anti-diabetic.
Ma ka ʻaoʻao ʻē aʻe, ua pili ʻo Thearubigin me nā antioxidant a me nā hopena anti-inflammatory, he mea koʻikoʻi ia no ka hakakā ʻana i ke kaumaha oxidative a me ka mumū i loko o ke kino.Hiki i kēia mau waiwai ke kōkua i nā hopena anti-kahiko a me ka pale-ʻili o Thearubigins, e hoʻolilo iā lākou i kumuhana hoihoi i ka mālama ʻili a me ka noiʻi pili makahiki.
I ka hopena, ʻo Theaflavins a me Thearubigins nā pūhui polyphenolic kūʻokoʻa i loaʻa i ke kī ʻeleʻele, kēlā me kēia me nā haku mele kūikawā a me nā pono olakino.ʻOiai ua hoʻopili ʻia ʻo Theaflavins i ke olakino cardiovascular, nā waiwai anti-cancer, a me nā hopena anti-diabetic, ua pili ʻo Thearubigin me nā antioxidant, anti-inflammatory, a me nā waiwai pale-ʻili, e hoʻolilo iā lākou i mea hoihoi i ka anti-aging a me ka mālama ʻili. noiʻi.
Kuhikuhi:
Hamilton-Miller JM.Nā waiwai antimicrobial o ke kī (Camellia sinensis L.).Nā ʻĀpana Antimicrob Chemother.1995;39(11):2375-2377.
Khan N, Mukhtar H. Tea polyphenols no ka hoʻoikaika kino.Ola Sci.2007;81(7):519-533.
Mandel S, Youdim MB.Catechin polyphenols: neurodegeneration a me neuroprotection i nā maʻi neurodegenerative.Free Radic Biol Med.2004;37(3):304-17.
ʻO Jochmann N, Baumann G.Curr Opin Clin Nutr Metab Care.2008;11(6):758-765.
Ka manawa hoʻouna: Mei-11-2024
