摘 要
本研究旨在探讨银杏叶黄酮含量的季节性变化。通过采集不同季节的银杏叶片，并运用高效液相色谱法对其黄酮含量进行定量分析。结果显示，银杏叶中黄酮含量随季节变化呈现显著差异，其中秋季黄酮含量最高，春季次之，夏季相对较低。本研究创新性地结合了气象数据与黄酮含量变化，发现温度、光照等环境因素对黄酮积累有显著影响。这一发现为银杏叶资源的合理利用提供了科学依据，有助于指导采收时间的确定，从而提高银杏叶的药用价值。本研究不仅揭示了银杏叶黄酮含量的季节性变化规律，也为中药材的质量控制提供了新的思路和方法。
关键词：银杏叶黄酮；季节性变化；环境因素
Abstract
This study aimed to investigate the seasonal variation in the flavonoid content of Ginkgo biloba leaves. Ginkgo leaves were collected in different seasons and quantified for their flavonoids content by HPLC. The results showed that the flavonoids content in ginkgo biloba showed varied different, with the highest in autumn, followed in spring and relatively low in summer. This study innovatively combined meteorological data with flavonoid content changes and found that environmental factors such as temperature and light had significant effects on flavonoid accumulation. This finding provides a scientific basis for the rational utilization of ginkgo biloba resources and helps to guide the determination of harvest time, thus improving the medicinal value of ginkgo biloba leaves. This study not only reveals the seasonal variation of flavonoids content in Ginkgo biloba, but also provides new ideas and methods for the quality control of TCM.
中文摘要 I
英文摘要 II
目 录 III
引 言 1
第1章、银杏叶黄酮概述与重要性 2
1.1、银杏叶黄酮的化学成分 2
1.2、银杏叶黄酮的生理功能 2
1.3、银杏叶黄酮的应用价值 2
第2章、银杏叶黄酮含量的测定方法 4
2.1、黄酮含量的化学测定技术 4
2.2、季节性黄酮含量变化的测定 4
2.3、测定方法的准确性与可靠性分析 4
第3章、银杏叶黄酮含量的季节性变化规律 6
3.1、不同季节银杏叶黄酮含量的实测数据 6
3.2、季节性变化对银杏叶黄酮含量的影响 6
3.3、环境因子与黄酮含量变化的关联性分析 6
第4章、银杏叶黄酮含量变化的生态学解释 8
4.1、光照对银杏叶黄酮含量的影响 8
4.2、温度和水分条件与黄酮合成的关系 8
4.3、土壤养分对黄酮含量的潜在影响 9
结 论 10
参考文献 11
本研究旨在探讨银杏叶黄酮含量的季节性变化。通过采集不同季节的银杏叶片，并运用高效液相色谱法对其黄酮含量进行定量分析。结果显示，银杏叶中黄酮含量随季节变化呈现显著差异，其中秋季黄酮含量最高，春季次之，夏季相对较低。本研究创新性地结合了气象数据与黄酮含量变化，发现温度、光照等环境因素对黄酮积累有显著影响。这一发现为银杏叶资源的合理利用提供了科学依据，有助于指导采收时间的确定，从而提高银杏叶的药用价值。本研究不仅揭示了银杏叶黄酮含量的季节性变化规律，也为中药材的质量控制提供了新的思路和方法。
关键词：银杏叶黄酮；季节性变化；环境因素
Abstract
This study aimed to investigate the seasonal variation in the flavonoid content of Ginkgo biloba leaves. Ginkgo leaves were collected in different seasons and quantified for their flavonoids content by HPLC. The results showed that the flavonoids content in ginkgo biloba showed varied different, with the highest in autumn, followed in spring and relatively low in summer. This study innovatively combined meteorological data with flavonoid content changes and found that environmental factors such as temperature and light had significant effects on flavonoid accumulation. This finding provides a scientific basis for the rational utilization of ginkgo biloba resources and helps to guide the determination of harvest time, thus improving the medicinal value of ginkgo biloba leaves. This study not only reveals the seasonal variation of flavonoids content in Ginkgo biloba, but also provides new ideas and methods for the quality control of TCM.
Key words: Ginkgo biloba flavonoids; seasonal changes; environmental factors
中文摘要 I
英文摘要 II
目 录 III
引 言 1
第1章、银杏叶黄酮概述与重要性 2
1.1、银杏叶黄酮的化学成分 2
1.2、银杏叶黄酮的生理功能 2
1.3、银杏叶黄酮的应用价值 2
第2章、银杏叶黄酮含量的测定方法 4
2.1、黄酮含量的化学测定技术 4
2.2、季节性黄酮含量变化的测定 4
2.3、测定方法的准确性与可靠性分析 4
第3章、银杏叶黄酮含量的季节性变化规律 6
3.1、不同季节银杏叶黄酮含量的实测数据 6
3.2、季节性变化对银杏叶黄酮含量的影响 6
3.3、环境因子与黄酮含量变化的关联性分析 6
第4章、银杏叶黄酮含量变化的生态学解释 8
4.1、光照对银杏叶黄酮含量的影响 8
4.2、温度和水分条件与黄酮合成的关系 8
4.3、土壤养分对黄酮含量的潜在影响 9
结 论 10
参考文献 11
