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<p>Lipids from the aerial part (leaves, <b>1</b>; rosettes, <b>2</b>) of <i>Pulmonaria obscura</i> Dumort. (Boraginaceae) collected at the start of vegetation were studied. The contents of neutral (NL) and polar lipids (PL) in <b>1</b> and <b>2</b> were isolated and determined. NL were separated into esters of triterpene and aliphatic alcohols (ETAs) and acylglycerides (AcGl). The composition of polyunsaturated fatty acids (PUFAs) was established. The main amounts of α-linoleic (α-18:2) and α-linolenic (α-18:3) were shown to occur in AcGl; γ-linolenic (γ-18:3) and stearidonic acids (18:4), in ETAs. The composition and content of lipophilic components were found. The antioxidant activity of lipids from <b>1</b> and <b>2</b> was determined. Lipids from <b>1</b> possessed more pronounced iron-reducing properties than <b>2</b> in the FRAP model.</p>

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Lipids from the Aerial Part of Pulmonaria obscura and Their Antioxidant Activity

  • 期刊论文

  • 发表日期：

    2025年11月18日

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  • S. G. Yunusova,
  • A. S. Erastov,
  • N. I. Fedorov,
  • T. A. Sapozhnikova,
  • R. Yu. Khisamutdinova,
  • M. S. Yunusov

摘要

Lipids from the aerial part (leaves, 1; rosettes, 2) of Pulmonaria obscura Dumort. (Boraginaceae) collected at the start of vegetation were studied. The contents of neutral (NL) and polar lipids (PL) in 1 and 2 were isolated and determined. NL were separated into esters of triterpene and aliphatic alcohols (ETAs) and acylglycerides (AcGl). The composition of polyunsaturated fatty acids (PUFAs) was established. The main amounts of α-linoleic (α-18:2) and α-linolenic (α-18:3) were shown to occur in AcGl; γ-linolenic (γ-18:3) and stearidonic acids (18:4), in ETAs. The composition and content of lipophilic components were found. The antioxidant activity of lipids from 1 and 2 was determined. Lipids from 1 possessed more pronounced iron-reducing properties than 2 in the FRAP model.