Minh Tu To, Thi Xuyen Do, Thi Tuyet Hoang, Van Truong Phan, Minh Tu Dang, Thanh Huyen Pham
{"title":"越南东南地区 Lagerstroemia calyculata Kurz 的形态学、解剖学和科罗索酸的定量测定","authors":"Minh Tu To, Thi Xuyen Do, Thi Tuyet Hoang, Van Truong Phan, Minh Tu Dang, Thanh Huyen Pham","doi":"10.31276/vjst.66(3).25-30","DOIUrl":null,"url":null,"abstract":"Objectives: To describe the morphological characteristics, anatomy (stem, leaves), and quantify the corosolic acid in the leaves of Lagerstroemia calyculata Kurz collected in the Southeast region, Vietnam. Subjects and methods: Using the comparative morphological method to determine the scientific name of species. Studying the microscopic characteristics of Lagerstroemia calyculataKurz according to the research method of N. Ba (2009) [1] and quantifying the content of corosolic acid in the leaves according to the United States Pharmacopeia 2017 (USP 40), with adjustments to suit the conditions of the laboratory. Results: Lagerstroemia calyculata Kurz is tree, deciduous, height 30-35 m, smooth bark. Leaves lanceolate, lateral veins 9-11 pairs, hairy. Inflorescence paniculate, small white flowers. Capsules ovoid, 6-valved. Seeds are numerous, brown, and smooth. The stem has a bicollateral vascular bundle, conduction tissue arranged continuously, double phloem pillars and leaf veins exposed on both sides. The outer epidermis has multicellular stellate hairs. Scattered in soft tissue there are crystalline particles. Stomata are present only on the underside of leaves. The quantification of corosolic acid in three leaf samples of Lagerstroemia calyculata Kurz was from 0.05 to 0.12%. Conclusions: This study has detailed morphological, anatomical characteristics, and quantitative determination of corosolic acid in three leaf samples of Lagerstroemia calyculata Kurz collected in the Southeast region.","PeriodicalId":18650,"journal":{"name":"Ministry of Science and Technology, Vietnam","volume":" 12","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Morphology, anatomy, and quantitative determination of corosolic acid in Lagerstroemia calyculata Kurz in the Southeast region, Vietnam\",\"authors\":\"Minh Tu To, Thi Xuyen Do, Thi Tuyet Hoang, Van Truong Phan, Minh Tu Dang, Thanh Huyen Pham\",\"doi\":\"10.31276/vjst.66(3).25-30\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Objectives: To describe the morphological characteristics, anatomy (stem, leaves), and quantify the corosolic acid in the leaves of Lagerstroemia calyculata Kurz collected in the Southeast region, Vietnam. Subjects and methods: Using the comparative morphological method to determine the scientific name of species. Studying the microscopic characteristics of Lagerstroemia calyculataKurz according to the research method of N. Ba (2009) [1] and quantifying the content of corosolic acid in the leaves according to the United States Pharmacopeia 2017 (USP 40), with adjustments to suit the conditions of the laboratory. Results: Lagerstroemia calyculata Kurz is tree, deciduous, height 30-35 m, smooth bark. Leaves lanceolate, lateral veins 9-11 pairs, hairy. Inflorescence paniculate, small white flowers. Capsules ovoid, 6-valved. Seeds are numerous, brown, and smooth. The stem has a bicollateral vascular bundle, conduction tissue arranged continuously, double phloem pillars and leaf veins exposed on both sides. The outer epidermis has multicellular stellate hairs. Scattered in soft tissue there are crystalline particles. Stomata are present only on the underside of leaves. The quantification of corosolic acid in three leaf samples of Lagerstroemia calyculata Kurz was from 0.05 to 0.12%. Conclusions: This study has detailed morphological, anatomical characteristics, and quantitative determination of corosolic acid in three leaf samples of Lagerstroemia calyculata Kurz collected in the Southeast region.\",\"PeriodicalId\":18650,\"journal\":{\"name\":\"Ministry of Science and Technology, Vietnam\",\"volume\":\" 12\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-03-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ministry of Science and Technology, Vietnam\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.31276/vjst.66(3).25-30\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ministry of Science and Technology, Vietnam","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31276/vjst.66(3).25-30","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
研究目的描述在越南东南部地区采集的 Lagerstroemia calyculata Kurz 的形态特征、解剖结构(茎、叶),并量化叶片中的科罗索酸。研究对象和方法用形态比较法确定物种学名。根据 N. Ba(2009 年)[1] 的研究方法研究 Lagerstroemia calyculataKurz 的显微特征,并根据《美国药典 2017》(USP 40)对叶片中的科罗索酸含量进行定量,并根据实验室条件进行调整。结果Lagerstroemia calyculata Kurz 为乔木,落叶,高 30-35 米,树皮光滑。叶披针形,侧脉 9-11 对,有毛。花序圆锥状,小白花。蒴果卵球形,6瓣裂。种子多数,褐色,光滑。茎有双侧维管束,传导组织连续排列,双韧皮部支柱,叶脉两侧外露。外表皮有多细胞星状毛。软组织中散布着结晶颗粒。气孔只出现在叶片背面。在 Lagerstroemia calyculata Kurz 的三个叶片样本中,科罗索酸的定量为 0.05% 到 0.12%。研究结论本研究对在东南地区采集的三份 Lagerstroemia calyculata Kurz 叶片样本中的科罗索酸进行了详细的形态、解剖特征和定量测定。
Morphology, anatomy, and quantitative determination of corosolic acid in Lagerstroemia calyculata Kurz in the Southeast region, Vietnam
Objectives: To describe the morphological characteristics, anatomy (stem, leaves), and quantify the corosolic acid in the leaves of Lagerstroemia calyculata Kurz collected in the Southeast region, Vietnam. Subjects and methods: Using the comparative morphological method to determine the scientific name of species. Studying the microscopic characteristics of Lagerstroemia calyculataKurz according to the research method of N. Ba (2009) [1] and quantifying the content of corosolic acid in the leaves according to the United States Pharmacopeia 2017 (USP 40), with adjustments to suit the conditions of the laboratory. Results: Lagerstroemia calyculata Kurz is tree, deciduous, height 30-35 m, smooth bark. Leaves lanceolate, lateral veins 9-11 pairs, hairy. Inflorescence paniculate, small white flowers. Capsules ovoid, 6-valved. Seeds are numerous, brown, and smooth. The stem has a bicollateral vascular bundle, conduction tissue arranged continuously, double phloem pillars and leaf veins exposed on both sides. The outer epidermis has multicellular stellate hairs. Scattered in soft tissue there are crystalline particles. Stomata are present only on the underside of leaves. The quantification of corosolic acid in three leaf samples of Lagerstroemia calyculata Kurz was from 0.05 to 0.12%. Conclusions: This study has detailed morphological, anatomical characteristics, and quantitative determination of corosolic acid in three leaf samples of Lagerstroemia calyculata Kurz collected in the Southeast region.