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題 名 | 辣椒類胡蘿蔔素之抗氧化性與對食物致突變物IQ之抗突變性間之相關性=The Correlation between the Antioxidation and the Antimutagenicity of Carotenoids from Chili against Food Mutagen IQ |
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作 者 | 鄭信男; 李輝; 劉黃惠珠; 蔡順仁; | 書刊名 | 中華民國營養學會雜誌 |
卷 期 | 23:4 1998.11[民87.11] |
頁 次 | 頁357-375 |
分類號 | 411.38 |
關鍵詞 | 類胡蘿蔔素; 抗氧化性; 抗突變性; Carotenoids; Antimutagenicity; Antioxidation; |
語 文 | 中文(Chinese) |
中文摘要 | 四川品種之辣椒(Capsicum annuum L.)以水、甲醇、乙醇、異丙醇、丙酮、二氯甲烷、乙醚及正己烷等八種不同極性溶劑萃取精油樹脂,並以安氏試驗法與亞麻油酸抗氧化性試驗法分析其抗突變性與抗氧化性以評估兩者之間之相關性。八種辣椒精油樹脂分別對致突變物IQ(2-amino-3-methylimidazo[4,5-f]quinoline)與亞麻油酸具有不同程度之抗突變性與抗氧化性,其中均以辣椒正己烷精油樹脂表現最強。為瞭解辣椒正己烷精油樹脂中主要的有效作用成分,以TLC及HPLC分析精油樹脂中之類番椒素(capsaicinoids)與類胡蘿蔔素(carotenoids)之含量並進行抗突變性與抗氧化性之分析。經純化鑑定其中之可能類胡蘿蔔素分別為β-carotent、β-cryptoxanthin、cryptocapsin、zeaxanthin、capsolutin、cis-capsanthin、altherxanthin、capsanthin、violaxanthin、capsorubin 及四種未能初步鑑定之化合物。各類胡蘿蔔素均具有不同程度的抗突變性與抗氧化性,兩者間具有顯著之相關性(r=0.89, P<0.05),而類番椒素則均無作用。為進一步瞭解類胡蘿蔔素之抗氧化性在抗突變性上之角色,進而分析類胡蘿蔔素對羥自由基(hydroxyl radical)的捕捉能力。各類胡蘿蔔素的抗突變性與捕捉自由基能力間具有顯著之相關性(r=0.78, P<0.05),其中亦以 cryptocapsin 最強。另外,本實驗探討cryptocapsin對致癌物N-hydroxyl-IQ(N-OH-IQ)氧化電位之影響。發現cryptocapsin能將N-OH-IQ氧化電位由+44 mV降低至-30 mV,即降低其親電子性(electrophiles)。由以上結果推測,類胡蘿蔔素為辣椒精油樹脂中主要的抗突變性成分,且可能是藉由對自由基的捕捉方式而達成,此可由降低致癌物N-OH-IQ的親電子性作用得到印證。 |
英文摘要 | The effect of chili oleoresins extracted with eight solvents (water, methanol, ethanol, propanol, acetone, dichloromethane, diethyl ether, or n-hexane) on antioxidation and antimutagenicity were examined by linoleic acid oxidation system and Ames test. All oleoresins showed various degrees of antioxidation and antimutagenicity toward linoleic acid and IQ (2-amino-3-methylimidazo[4,5-f]quinoline), separately. Among them, n-hexane oleoresin showed the strongest activity. The antioxidative and antimutagenic compounds were isolated and characterized from n-hexane oleoresin by TLC and HPLC-MS. The two major group of compounds, carotenoids and capsaicinoids, were found in n-hexane oleoresin, but only cartenoids showed significant antioxidation and antimutagenicity. Ten carotenoids were tentatively identified as β-carotene, β-cryptoxanthin, cryptocapsin, zeaxanthin, capsolutin, cis-capsanthin, altherxanthin, capsanthin, violaxanthin, and capsorubin from the isolated fourteen carotenoids. All carotenoids showed antioxidation as well as antimutagenicity (r=0.89, P<0.05). In order to study the effective role of antioxidation on the antimutagenicity against IQ, the scavenged hydroxyl radical activity was examined. The scavenged hydroxyl radical effect of fourteen carotenoids was correlated with their antimutagenicity (r=0.78, P<0.05); cryptocapsin showed the strongest activity among them. In addition, cryptocapsin showed reduced oxidative potential toward N-hydroxyl-IQ (N-OH-IQ) from +44 mV to -30 mV, which decreased its electriphile of N-OH-IQ. Moreover, that the modifying effects of carotenoids on the mutagenicity of IQ is possible mediated through direct interaction with its active metabolite (N-OH-IQ) was demonstrated by scavenged free radicals and reduced electrophiles. |
本系統中英文摘要資訊取自各篇刊載內容。