采用全树结香技术后沉香形成的时间特征。
Temporal characteristics of agarwood formation in after applying whole-tree agarwood-inducing technique.
作者信息
Zhang Yan, Meng Hui, Lyu Feifei, Fan Xiaohong, Liu Peiwei, He Xin, Huang Ying, Chen Bo, Yang Yun, Wei Jianhe
机构信息
HainanProvincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Wanning 571533, China.
National Engineering Laboratory for Breeding of Endangered Medicinal Materials, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
出版信息
Chin Herb Med. 2022 Dec 20;15(1):37-44. doi: 10.1016/j.chmed.2022.07.003. eCollection 2023 Jan.
OBJECTIVE
Agarwood-a resinous wood produced by plants in response to injury or artificial induction-is a valuable medicinal and fragrance resource. Whole-Tree Agarwood-Inducing Technique (Agar-WIT) has been widely used to produce agarwood. However, the time-dependent characteristics of agarwood formation induced by Agar-WIT are yet to be clarified. To promote technologically efficient utilization and upgradation of Agar-WIT, the dynamic process and mechanism of agarwood formation were analyzed for one year.
METHODS
Agarwood formation percentage, barrier layer microscopic properties, extract levels, compound level, and characteristic chromatograms of agarwood were examined by referring to the (2020 version).
RESULTS
Agar-WIT could maintain a high percentage of agarwood formation over one year compared with that of healthy plants. Alcohol-soluble extract and agarotetrol levels showed fluctuating cyclic changes with peaks occurring first during the fifth and sixth months, and subsequently in the 11th month. trees subjected to Agar-WIT treatment for 1-12 months showed significant characteristics of a dynamic agarwood formation process. The barrier layer began to appear in the fourth month after treatment. Alcohol-soluble extractive levels in agarwood formed in the second month, and thereafter, exceeded 10.0%, and agarotetrol in agarwood produced after four months or later, exceeded 0.10%.
CONCLUSION
According to the , alcohol-soluble extractive levels in agarwood should not be less than 10.0% and agarotetrol level should exceed 0.10%. After four months of Agar-WIT treatment, the formed agarwood theoretically met these standards and was suitable for developed and utilization. However, the optimal harvest time was found to be the 11th month, followed by the sixth month after Agar-WIT treatment. Therefore, Agar-WIT resulted in swift agarwood formation and stable accumulation of alcohol-soluble extracts and agarotetrol. Thus, this method is efficient for large-scale cultivation of to produce agarwood and provide raw materials for the agarwood medicinal industry.
目的
沉香是植物因受伤或人工诱导而产生的一种含树脂木材，是一种珍贵的药用和香料资源。整树结香技术（Agar-WIT）已被广泛用于生产沉香。然而，Agar-WIT诱导沉香形成的时间依赖性特征尚待阐明。为促进Agar-WIT技术的高效利用和升级，对沉香形成的动态过程和机制进行了为期一年的分析。
方法
参照（2020版）对沉香的结香率、屏障层微观特性、提取物含量、化合物水平和特征色谱图进行检测。
结果
与健康植株相比，Agar-WIT可在一年时间内保持较高的沉香形成率。醇溶性提取物和沉香四醇含量呈现波动循环变化，峰值首先出现在第五和第六个月，随后出现在第11个月。接受Agar-WIT处理1至12个月的树木呈现出沉香形成动态过程的显著特征。处理后第四个月开始出现屏障层。第二个月及之后形成的沉香中醇溶性提取物含量超过10.0%，四个月及之后产生的沉香中沉香四醇含量超过0.10%。
结论
根据，沉香中醇溶性提取物含量不应低于10.0%，沉香四醇含量应超过0.10%。Agar-WIT处理四个月后，形成的沉香理论上符合这些标准，适合开发利用。然而，最佳采收时间为第11个月，其次是Agar-WIT处理后的第六个月。因此，Agar-WIT可使沉香快速形成，并使醇溶性提取物和沉香四醇稳定积累。因此，该方法对于大规模种植以生产沉香并为沉香医药产业提供原材料是有效的。
Zotero 插件