共查询到2条相似文献,搜索用时 0 毫秒
1.
采用超临界流体孳取法(SFE)和气相色谱-质谱联用技术(GC/MS)对梧桐子中脂溶性化学成分进行分析,并用NIST质谱数据库对其进行分析和鉴定。共分离鉴定出10种物质.大部分为不饱和脂肪酸类和酯类,占色谱总流出峰面积的83.37%。 相似文献
2.
Olha Mykhailenko Zigmantas Gudžinskas Svitlana Romanova Tetyana Orlova Sofiia Kozyra Svitlana Harna Victoriia Volochai 《化学与生物多样性》2021,18(3):e2000969
The present article reports results of analysis of carboxylic acids in leaves of Iris species from Ukraine using a gas chromatography (GC) method with mass spectrometric (MS) detection (GC/MS). Carboxylic acids play significant roles in contemporary society as evidenced by multiple applications in fields of medicine, agriculture, pharmacy, food, and other industries. Study of natural plant products as a source of organic acids is of particular interest. Carboxylic acid composition of leaves of Iris hungarica Waldst. & Kit., Iris germanica L., Iris pallida Lam., and Iris variegate L. was studied for the first time applying GC/MS method. The mass spectrums of compounds were matched with NIST and WILEY Libraries. The GC/MS analysis revealed the presence of 26 common acids in the plant raw materials studied. The short-chain carboxylic acids, such as citric (1337.5–12364.4 mg/kg), malic (50.8–4558.0 mg/kg) and oxalic (1199.0–3435.2 mg/kg) acids were contained in significantly high quantity in all samples. Ferulic, p-coumaric and vanillic acids were the most abundant among phenolic acids. α-Linolenic acid was dominant in the leaves of I. germanica (869.5 mg/kg), I. pallida (753.3 mg/kg), and I. variegate (250.3 mg/kg) among polyunsaturated fatty acids, however, linoleic acid prevailed in the plant raw material of I. hungarica (1150.7 mg/kg). Since the leaves of Iris species studied contain carboxylic acids with diverse pharmacological activity, extracts of these raw materials are perspective for development food supplements and medicines. 相似文献