Isolation and Structure Elucidation of Antioxidants of Traditional Vegetables and Fruits of Yaeyama Islands in Okinawa.

冲绳八重山群岛传统蔬菜和水果的抗氧化剂的分离和结构解析。

• 批准号: 16300238
• 负责人: NAKATANI Nobuji
• 金额: $ 5.57万
• 依托单位: The University of the Air
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16300238/
• 关键词: Vegetables, Fruits in Okinawa; Yaeyama Islands; Antioxidants; Piper retrofractum; Morinda citrifolia; Noni; Flavonoid; Cytotoxic Activity; 沖縄産食用植物; ヤエヤマアオキ; ケルセチン配糖体; 沖縄産野菜; リュウキュウヨモギ

It is our purpose to find and clarify of chemical constituents, in particularly natural antioxidants, which might have supported health and longevity of people in Okinawa. Antioxidants play and important role not only in food preservation but in couteracting the risk of most cardiovascular diseases, cancer and aging. Based on our screening for antioxidant activity in Okinawan traditional edible plants, we have focused our attention on two species, such as Japanese long pepper (Piper retrofractum) and Noni (Morinda citrifolia). Both species showed strong andtioxidant activity evaluated by several methods, such as the OSI method and the DPPH radical scavenging test. From the ethyl acetate soluble fraction of P retrofractum extract, several antioxidative polyphenols including flavonoid glycosides were isolated and determined. From the leaves of M citrifolia, 8 compounds were determined including quercetin glycosides, iridoids and ferulic acid glycosides.

我们的目的是寻找和澄清可能有助于冲绳人民健康和长寿的化学成分，特别是天然抗氧化剂中的化学成分。抗氧化剂不仅在食物保存方面发挥着重要作用，而且在抵御大多数心血管疾病、癌症和衰老的风险方面也发挥着重要作用。在对冲绳传统食用植物抗氧化活性进行筛选的基础上，重点研究了日本长椒和诺丽两种植物的抗氧化活性。两种植物均表现出较强的抗氧化活性，如OSI法和DPPH自由基清除试验。从荆芥提取物的乙酸乙酯可溶性部位分离并测定了几种抗氧化多酚类化合物，其中包括黄酮类苷类。从柑橘叶中分别测定了槲皮素苷、环烯醚萜和阿魏酸苷等8种化合物。

项目成果

Chemical constituents of Piper retrofractum Vahl and their antioxidant and radical scavenging activities

荜荠的化学成分及其抗氧化和自由基清除活性

• 发表时间: 2005
• 期刊: ITE Letters 6
• 作者: Seiichiro;Aoe;Kayo Akiyama;Kayo Akiya et al.;Kaya Akiyama;Saeda Kametani
• 通讯作者: Saeda Kametani