摘要
采用超临界CO2萃取,应用气相色谱-质谱联用(GC-MS)法鉴定碧桃花、叶、茎、果实挥发油中化学成分和相对质量浓度,共鉴定178个化合物。其中花挥发油中主要成分有苯甲醛(11.42%)、α-金合欢烯(9.18%)、十六烷酸(8.03%)。叶挥发油中主要成分有:苯甲醛(14.72%)、二十五烷(9.85%)、二十八烷(8.29%)、二十三烷(5.14%)。茎挥发油中主要成分有(z)-3-己烯-1-醇(28.90%)、(E)-2-己烯醇(16.06%)、正己醇(6.86%)。果实挥发油中主要成分有:苯甲醛(20.46%)、十六烷酸(5.84%)、苯甲醇(5.01%)。在10~40d贮藏期内,花、叶、茎、果实挥发油可明显降低花生油的过氧化值和酸值,其中以茎挥发油高剂量组降低作用最强。花和茎挥发油具有较强的抑菌作用,其最小抑菌浓度(MIC)值在0.024—0.188g,/L范围内。
The volatile oils of the flower, leaf, stem and fruit from Amygdalus persica var. persica f. duplex extracted by supercritical carbon dioxide are analyzed by GC-MS. There are 178 components identified and their relative mass fractions are determined. The main constituents and mass concentration are benzaldehyde ( 11.42% ), α-farnesene ( 9. 18% ) and n-hexadecanoic acid ( 8.03% ) from the flower, benzaldehyde ( 14. 72% ), pentacosane ( 9. 85% ), octacosane ( 8.29% ) and tricosane ( 5.14% ) from the leaf, (Z) -3- hexen-l-ol(28.90% ), (E)-2-hexen-l-ol( 16. 06% ) and 1-hexanol(6. 86% ) from the stem, benzaldehyde (20. 46% ), n-hexadecanoic acid(5.84% ) and benzyl alcohol(5.01% ) from the fruit. The volatile oils of the flower, leaf, stem and fruit lower the contents of peroxides and acid value of peanut oil during 10-40 d storage period. The volatile oils of the flower and stem show significant antimicrobial activities with the minimum inhibitory concentration(MIC) of 0. 024 - 0. 188 g/L.
出处
《应用化学》
CAS
CSCD
北大核心
2016年第8期945-950,共6页
Chinese Journal of Applied Chemistry
基金
安徽省质量工程项目(2014zy078)资助~~
关键词
碧桃
挥发油
化学成分
抗氧化
抑菌
Amygdalus persica var. persica f. duplex
volatile oil
chemical components
antioxidation
antimicrobial activities