ʻO nā Theaflavins (TFs)a meʻO Thearubigins (TRs)ʻelua mau hui like ʻole o nā hui polyphenolic i loaʻa i loko o ke kī ʻeleʻele, kēlā me kēia me nā ʻano kemika a me nā waiwai kū hoʻokahi. ʻO ka hoʻomaopopo ʻana i nā ʻokoʻa ma waena o kēia mau hui he mea nui ia no ka hoʻomaopopo ʻana i kā lākou mau hāʻawi pilikino i nā ʻano a me nā pono olakino o ke kī ʻeleʻele. Manaʻo kēia ʻatikala e hāʻawi i kahi noiʻi piha o nā ʻokoʻa ma waena o Theaflavins a me Thearubigins, i kākoʻo ʻia e nā hōʻike mai nā noiʻi pili.
ʻO nā theaflavins a me nā thearubigins he mau flavonoids e hāʻawi i ke kala, ka ʻono, a me ke kino o ke kī.He ʻalani a ʻulaʻula paha nā theaflavin, a he ʻulaʻula-ʻeleʻele nā thearubiginsʻO Theaflavins nā flavonoids mua e puka mai i ka wā o ka oxidation, ʻoiai ʻo thearubigins e puka mai ma hope. Hāʻawi nā Theaflavins i ka astringency, ka ʻōlinolino, a me ka briskness o ke kī, ʻoiai ʻo thearubigins e hāʻawi i kona ikaika a me ka ʻono o ka waha.
ʻO nā Theaflavins kahi papa o nā hui polyphenolic e hāʻawi i ke kala, ka ʻono, a me nā waiwai hoʻolaha olakino o ke kī ʻeleʻele. Hoʻokumu ʻia lākou ma o ka dimerization oxidative o nā catechins i ka wā o ke kaʻina hana fermentation o nā lau kī. Ua ʻike ʻia nā Theaflavins no ko lākou hopena antioxidant a me ka 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,ʻO Thearubiginshe mau hui polyphenolic nui i loaʻa mai ka oxidation o nā polyphenols kī i ka wā o ka fermentation o nā lau kī. ʻO lākou ke kuleana no ke kala ʻulaʻula momona a me ka ʻono ʻano o ke kī ʻeleʻele. Ua pili ʻia nā Thearubigins me nā waiwai antioxidant, anti-inflammatory, a me ka pale ʻili, e hoʻolilo ana iā lākou i kumuhana hoihoi i ke kahua o ka anti-aging a me ka mālama ʻili.
Ma ke ʻano kemika, ʻokoʻa nā Theaflavins mai nā Thearubigins ma ke ʻano o ko lākou ʻano molekala a me ka haku mele. He mau hui dimeric nā Theaflavins, ʻo ia hoʻi ka hui pū ʻana o ʻelua mau ʻāpana liʻiliʻi e hoʻokumu iā lākou, ʻoiai ʻo Thearubigins he mau hui polymeric nui aʻe i loaʻa mai ka polymerization o nā flavonoids like ʻole i ka wā o ka fermentation kī. Hāʻawi kēia ʻokoʻa ʻano i kā lākou mau hana olaola like ʻole a me nā hopena olakino hiki.
| ʻO Theaflavins | ʻO Thearubigins | |
| Waihoʻoluʻu | ʻAlani a ʻulaʻula paha | ʻUlaʻula-ʻeleʻele |
| Ka hāʻawina i ke kī | ʻO ka ʻōlinolino, ka ʻōlinolino, a me ka wikiwiki | Ka ikaika a me ka manaʻo o ka waha |
| ʻAno kemika | Ua wehewehe pono ʻia | He ʻokoʻa a ʻike ʻole ʻia |
| Pakeneka o ke kaumaha maloʻo i loko o ke kī ʻeleʻele | 1–6% | 10–20% |
ʻO nā theaflavins ka hui nui o nā hui i hoʻohana ʻia e loiloi i ka maikaʻi o ke kī ʻeleʻele. ʻO ka lakio o nā theaflavins i nā thearubigins (TF:TR) pono he 1:10 a i 1:12 no ke kī ʻeleʻele kiʻekiʻe. ʻO ka manawa hoʻomoʻa kahi kumu nui i ka mālama ʻana i ka lakio TF:TR.
ʻO Theaflavins a me thearubigins nā huahana hiʻona i hoʻokumu ʻia mai nā catechins i ka wā o ka oxidation enzymatic o ke kī i ka wā o ka hana ʻana. Hāʻawi nā Theaflavins i kahi kala ʻalani a ʻalani-ʻulaʻula paha i ke kī a hāʻawi i kahi manaʻo mouthfeel a me kahi ʻano o ka hoʻokumu ʻana o ka kirīmi. He mau hui dimeric lākou nona kahi iwi benzotropolone i hoʻokumu ʻia mai ka co-oxidation o nā hui i koho ʻia o nā catechins. ʻO ka oxidation o ke apo B o (−)-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 (Kiʻi 12.2). Ua ʻike ʻia ʻehā mau theaflavins nui i loko o ke kī ʻeleʻele: theaflavin, theaflavin-3-monogallate, theaflavin-3′-monogallate, a me theaflavin-3,3′-digallate. Eia kekahi, hiki ke loaʻa kā lākou stereoisomers a me nā derivatives. I kēia mau lā iho nei, ua hōʻike ʻia ke alo o ka theaflavin trigallate a me ka tetragallate i loko o ke kī ʻeleʻele (Chen et al., 2012). Hiki ke hoʻomake hou ʻia nā theaflavin. ʻO lākou paha nā mea mua no ka hoʻokumu ʻana o nā polymeric thearubigins. Eia nō naʻe, ʻaʻole ʻike ʻia ke ʻano o ka hopena a hiki i kēia manawa. ʻO nā Thearubigins he mau pigments ʻulaʻula-ʻeleʻele a ʻeleʻele paha i loko o ke kī ʻeleʻele, ʻo kā lākou ʻike he 60% o ke kaumaha maloʻo o ka hoʻokomo ʻana o ke kī.
Ma ke ʻano o nā pono olakino, ua aʻo nui ʻia nā Theaflavins no ko lākou kuleana kūpono i ka hoʻolaha ʻana i ke olakino cardiovascular. Ua hōʻike ʻia e ka noiʻi e hiki i nā Theaflavins ke kōkua i ka hoʻemi ʻana i nā pae cholesterol, hoʻomaikaʻi i ka hana o nā kīʻaha koko, a hoʻopuka i nā hopena anti-inflammatory, ʻo ia mau mea āpau he mea maikaʻi no ke olakino cardiovascular. Eia kekahi, ua hōʻike ʻo Theaflavins i ka hiki ke kāohi i ka ulu ʻana o nā cell cancer a loaʻa paha nā waiwai anti-diabetic.
Ma ka ʻaoʻao ʻē aʻe, ua pili ʻo Thearubigins me nā hopena antioxidant a me nā anti-inflammatory, he mea nui 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 lilo ai lākou i kumuhana hoihoi i ka mālama ʻili a me ka noiʻi pili i ka makahiki.
I ka hopena, ʻo Theaflavins lāua ʻo Thearubigins he mau hui polyphenolic ʻokoʻa i loaʻa i loko o ke kī ʻeleʻele, kēlā me kēia me nā ʻano kemika kūikawā a me nā pono olakino. ʻOiai ua pili ʻia ʻo Theaflavins i ke olakino cardiovascular, nā waiwai anti-cancer, a me nā hopena anti-diabetic, ua pili ʻia ʻo Thearubigins me nā waiwai antioxidant, anti-inflammatory, a me ka pale ʻili, e lilo ana lākou i kumuhana hoihoi i ka noiʻi anti-aging a me ka mālama ʻili.
Nā Kuhikuhi:
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ʻO Khan N, Mukhtar H. Nā polyphenols kī no ka hoʻolaha olakino. Life Sci. 2007;81(7):519-533.
Mandel S, Youdim MB. Nā polyphenols Catechin: neurodegeneration a me ka neuroprotection i nā maʻi neurodegenerative. Free Radic Biol Med. 2004;37(3):304-17.
ʻO Jochmann N, Baumann G, Stangl V. Kī ʻōmaʻomaʻo a me nā maʻi cardiovascular: mai nā pahuhopu molekala i ke olakino kanaka. Curr Opin Clin Nutr Metab Care. 2008;11(6):758-765.
Ka manawa hoʻouna: Mei-11-2024
