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首页> 外文期刊>La Rivista Italiana delle Sostanze Grasse >Effects of different extraction methods and storage conditions on the quality characteristics and antioxidant activity of flaxseed oil (Linum usitatissimum L) grown in Tunisia
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Effects of different extraction methods and storage conditions on the quality characteristics and antioxidant activity of flaxseed oil (Linum usitatissimum L) grown in Tunisia

机译：不同提取方法和贮藏条件对突尼斯种植的亚麻籽油（Linum usitatissimum L）的品质特性和抗氧化活性的影响

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摘要

The physicochemical properties of crude flaxseed (Linum usitatissimum L.) oil, which was extracted using different extraction methods and during storage, were determined. The fatty acid (FA) composition of flaxseed oil was analyzed during extraction and storage time. The results revealed that the crude Flaxseed oil obtained by Modified Bligh Dyer extraction method had satisfactory quality and stability parameters than the crude oils obtained by other extraction methods. Changes occurring during extraction and storage in the content of phenolic acids, total tocopherol content, phytosterols content, peroxide value, p-anisidine value, and stability against oxidation (Rancimat induction time) in flaxseed oil were studied. Major bioactive compounds content showed a drastic decrease during storage. Flaxseed oil showed an important free radical scavenging activity towards 1-1-diphenyl-2-picrylhydrazyl (DPPH) free radical.
机译：测定了使用不同提取方法提取的亚麻籽油（Linum usitatissimum L.）的理化性质。在提取和储存期间，分析了亚麻籽油的脂肪酸（FA）组成。结果表明，改进的Bryg Dyer提取方法得到的亚麻籽油的质量和稳定性参数优于其他提取方法得到的原油。研究了亚麻籽油中酚酸含量，总生育酚含量，植物甾醇含量，过氧化物值，对茴香胺值以及抗氧化稳定性（Rancimat诱导时间）的变化。在储存过程中，主要的生物活性化合物含量急剧下降。亚麻籽油对1--1-二苯基-2-吡啶并肼基（DPPH）自由基具有重要的清除自由基活性。

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