水分处理对垂盆草体外抗氧化能力的影响
毕业论文关键词：垂盆草；水分处理；体外抗氧化能力。
Effects of the different water treatment on Sedum sarmentosum in vitro Antioxidant capacity
Abstract：Objective：The present study was conducted to investigate the antioxidant activity of Sedum sarmentosum in different water treatments. Method: The S. sarmentosum was cultivated for 2 months under the water treatment gradient of field water Field capacity of 15%~20%, 35%~40%, 55%~60%, 75%~80% and 95%~100% .Result：When soil water content was less than 75%~80% field water capacity, the in vitro antioxidant capacity of S. sarmentosum was low. the antioxidant capacity of the S. sarmentosum was the highest when the water amount reached 75%~80% the field water capacity, and the antioxidant capacity remained stable or decreased with the further increase of soil moisture.. In the four antioxidant capacity experiments, 75%~80% of field water capacity treatment showed the highest antioxidant capacity. Conclusion: The highest antioxidant capacity of the S. sarmentosum was found in 75%~80% of field water capacity treatment. Key words Sedum sarmentosum；water treatment；in vitro Antioxidant capacity.
目 录
摘要1
关键词1
Abstract1
Key words1
引言1
1材料与方法2
1.1实验材料与处理2
1.2实验方法3
1.2.1试剂3
1.2.2标准曲线的制作3
1.2.3体外抗氧化能力的测定3
1.2.3.1DPPH测定体外抗氧化能力3
1.2.3.2FTC法测定体外抗氧化能力3
1.2.3.3TBARS法测定体外抗氧化能力3
1.2.3.4FRAP法测定体外抗氧化能力4
2.结果与分析 4
2.1DPPH法测定体外抗氧化能力4
2.2FTC法测定体外抗氧化能力5
2.3TBARS法测定体外抗氧化能力6
2.4FRAP法测定体外抗氧化能力6
3.讨论6
4.结论7
致谢8
参考文献8
图1 DPPH法测定体外抗氧化能力4
图 2 FTC法24h测定体外抗氧化能力5
图 3 FTC法48h测定体外抗氧化能力5
图 4 TBARS法测定体外抗氧化能力6
图5 FRAP法测定体外抗氧化能力6
水分处理对垂盆草体外抗氧化能力的影响
垂盆草Sedum sarmentosum Bunge为景天科多年生草本植物，性凉甘淡，新鲜或干燥全草入药。利湿退黄，清热解毒。传统中医主治湿热黄疸、小便不利、痈肿疮疡、急、慢性肝炎[1~2]。垂盆草茎纤细 ，长可达 20cm以上，部分节上可见纤细的不定根。3叶轮生，叶片倒披针形至矩圆形，绿色，肉质，长1.5〜2.8cm，宽0.3〜0.7cm， 先端近急尖,基部急狭 ，有距。气微 ，微苦。垂盆草的化学成分研究表明垂盆草含有黄酮、三萜、甾醇、生物碱、氰苷、挥发油、糖类等成分[3]。现代研究表明垂盆草具有较为良好的保肝解毒的药效[4]，垂盆草作为一新兴的中药材，市场前景良好，但目前而言，垂盆草的主要来源主要是野生资源，因此规范化栽培垂盆草成为了一个新的课题。
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