Nā huahana

Hoʻopili pinepine ʻia ka ʻai ʻana i nā polyphenols me ka liʻiliʻi o nā maʻi degenerative.ʻO ka hapa nui o kēia mau antioxidants kūlohelohe mai nā huaʻai, nā mea kanu, nā mea ʻala, nā kīʻaha a me nā mea kanu.No kēia kumu, ua hoʻonui ʻia ka hoihoi i ka ʻike ʻana i nā mea hoʻohui mea kanu.ʻO nā tannins polymeric a me nā flavonoids monomeric, e like me ka catechin a me ka epicatechin, i loko o ka ʻili paina a me nā ʻāpana kī ʻōmaʻomaʻo ke kuleana no nā hana antioxidant kiʻekiʻe o kēia mau extracts.ʻO ka pahuhopu o kēia haʻawina ʻo ia ka ʻike ʻana i nā pūhui phenolic i loko o ka ʻili paina a me ke kī ʻōmaʻomaʻo e hoʻohana ana i ka chromatography wai hana kiʻekiʻe i hui pū ʻia me ka electrospray ionization mass spectrometry (HPLC-ESI-QTOF-MS).Ua ʻike ʻia he 37 a me 35 mau pūhui mai ka ʻili paina a me nā ʻāpana kī ʻōmaʻomaʻo, no nā papa hana like ʻole, ʻo ka flavan-3-ol ka nui a me nā mea i loaʻa (me nā procyanidins).Ua loiloi ʻia ka mana antioxidant o nā ʻāpana ʻelua e ʻekolu mau ʻano hana antioxidant hoʻohui: Trolox equivalent antioxidant capacity (TEAC), ferric reducing antioxidant power (FRAP) a me ka oxygen radical absorbance capacity (ORAC).Loaʻa nā waiwai antioxidant kiʻekiʻe ma kēlā me kēia ʻano.Eia kekahi, ʻo ka nui o nā polyphenol a me flavan-3-ol, i hoʻoholo ʻia e Folin-Ciocalteu a me vanillin assays, i hōʻike ʻia i ka nui o ka gallic acid a me (+)-catechin e like.