摘要
目的:分析研究15个卷丹居群鳞茎活性成分含量及抗氧化能力差异。方法:测定5类活性成分含量(总多酚、类黄酮、总黄烷醇、总皂苷、总生物碱)和4种抗氧化能力(ABTS+?、DPPH自由基、超氧阴离子自由基清除能力、铜离子还原能力),分析居群间差异,结合生态因子探究差异来源。结果:各卷丹居群间活性成分含量和抗氧化能力差异显著;5类活性成分含量最高的居群分别比各居群各活性成分平均水平高32%(总多酚)、29%(类黄酮)、22%(总黄烷醇)、34%(总皂苷)、36%(总生物碱);各卷丹居群中抗氧化能力最强的西藏拉萨居群,其ABTS+?、DPPH自由基、超氧阴离子自由基清除能力、铜离子还原能力分别比居群平均水平高70%、25%、17%、29%;各卷丹居群总抗氧化能力平均值为11?757.23?mg/kg,是兰州百合总抗氧化能力的1.62倍。结论:卷丹鳞茎适合作为功能性食品加以研究利用。而产地生态因子对卷丹鳞茎功能性成分含量和抗氧化能力影响巨大,在进一步研究和利用中应加以考虑。
In this study, the contents of 5 active components （total polyphenols, total flavonoids, total flavanols, total saponins and total alkaloids） and 4 antioxidant abilities （diammonium 2,2＇-azino-bis（3-ethylbenzothiazoline-6-sulfonate） （ABTS＋）, 1,1-diphenyl-2-picrylhydrazylradical （DPPH）, superoxide anion radical scavenging activity, and reducing power and cupricion reducing power） were tested on Lilium lancifolium Thunb. bulbs from 15 populations, to reveal the differences in antioxidant properties among these populations. Further, the cause of this disparity was explained with ecological factors. The results indicated that significant differences in the contents of 5 active components and 4 anti-oxidation abilities existed among different populations. The highest levels shown in the contents of total polyphenols, total flavonoids, total flavanols, total saponins and total alkaloids were 32%, 29%, 22%, 34% and 36% higher than the average levels, respectively. Among all the populations, Lhasa population （Tibet, China） possessed the greatest antioxidant capacity, the ABTS＋, DPPH and superoxide anion radical scavenging activity, and cupricion reducing power of which were 70%, 25%, 17% and 29%higher than the average levels, respectively. The mean value of total antioxidant components of the 15 populations reached 11 757.23 mg/kg, which was 1.62 times as high as that of Lilum davidi var. unicdor cotton. In conclusion, the bulbs of L. lancifolium Thunb. is a potential functional food ingredient. Besides, the origin of Lilium lancifolium Thunb. populations has a significant influence on the content of functional components and antioxidant properties of their bulbs, which should be taken into account in future studies and utilization.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2015年第14期122-129,共8页
Food Science
基金
陕西省林业厅项目(陕林计字[2011]70号)
国家自然科学基金面上项目(305021110)
关键词
卷丹
居群
活性成分含量
抗氧化能力
Lilium lancifolium
populations
active components
antioxidant ability
