金樱子种核微观结构鉴别及活性成分分析

Microstructure Identification and Active Component Analysis of Seed Nucleus of Rosa laevigata Michx

[目的]分析金樱子种核微观结构及活性成分。[方法]通过扫描电镜(Scanning Electron Microscope,SEM)观察了金樱子种核微观结构,应用气相色谱-质谱联用技术检测种核活性成分。[结果]金樱子种核呈压扁肾形,每枚种核约4.0 mm×2.5 mm,种核表面无光泽,有细小纵向褶皱。种核边缘密布长度不同的细长茸毛,茸毛长度1.0~1.5 mm。GC-MS则成功检测到金樱子种核中19种活性成分,其中相对质量分数较高的有亚油酸(25.23%)、油酸(11.67%)、α-亚麻酸(10.51%)、8,10-二甲氧基十八烷酸(8.76%)、棕榈酸(7.91%)、10,15-二甲氧基花生酸(5.49%)等。[结论]金樱子种核营养成分较为丰富。该研究为金樱子种核显微鉴别及综合利用提供一定借鉴。

[ Objective ] The researeh aimed to analyse the microstructure and active component of seeds of Rosa laevigata. [ Method ] The micro- structmre of the seed nucleus of Rosa laevigata was observed by Scanning Electron Microscope （SEM）, and the nuclear active components were detected by gas chromatography-mass spectmmetry. [Result] Seed nucleus of Rosa laevigata were flattened and kidney-shaped,each of which was about 4.0 mmx2.5 mm in size.The surtace of the seed nucleus was dull and had fine longitudinal tblds.Haire with diflerent lengths were found on the edge of the each seed with a length range of about 1.0-1.5 mm.GC-MS successfully detected 19 active components in the seed nucleus of Ro- sa laevigata, among which the higher relative mass fractions were linoleic acid （ 25.23% ）, oleic acid （ 11.67% ）, et-linolenic acid （ 10.51% ）, 8, 10-dimethoxyoctadecanoic acid （ 8.76% ）, pahnitic acid （7.91%） and 10,15-dimethoxyarachinic acid （5.49%） etc. [ Conclusion ] Seed nucleus of Rosa laevigata is rich in nutrients.This study provides some reterence tor the microscopic identification and comprehensive utilization of seed nucleus of Rosa laevigata.