Tava Aldo, Cecotti Roberto, Grecchi Maris, Falchero Luca, Coppa Mauro, Lombardi Giampiero
CRA-FLC Centro di Ricerca per le Produzioni Foraggere e Lattiero Casearie, viale Piacenza 29, 26900 Lodi, Italy.
Nat Prod Commun. 2011 Jan;6(1):101-5.
The composition of the volatile fractions of three important grasses from sub-alpine N.W. Italian pastures, namely Festuca nigrescens Lam. non Gaudin (chewing fescue), Phleum alpinum L. (alpine timothy) and Poa alpina L. (alpine bluegrass) was investigated. The fresh aerial parts were collected at the flowering stage during the summer season. The volatile oils obtained from green tissues by steam distillation in a Clevenger-type apparatus, were analyzed by GC/FID and GC/MS. The oil yield was 0.04 +/- 0.01% weight/fresh weight bases for each of the investigated species. Several classes of compounds were found in the volatile fractions, including aldehydes, alcohols, acids, hydrocarbons, esters, ketones, terpenes, and phenolics. Qualitative and quantitative differences were observed.
对来自意大利西北部亚高山牧场的三种重要禾本科植物，即黑羊茅（Festuca nigrescens Lam. non Gaudin，咀嚼用羊茅）、高山梯牧草（Phleum alpinum L.）和高山早熟禾（Poa alpina L.）挥发成分的组成进行了研究。在夏季开花期采集新鲜地上部分。通过Clevenger型装置对绿色组织进行水蒸气蒸馏得到挥发油，采用气相色谱/氢火焰离子化检测器（GC/FID）和气相色谱/质谱联用仪（GC/MS）进行分析。在所研究的每个物种中，挥发油得率为0.04±0.01%（重量/鲜重）。在挥发成分中发现了几类化合物，包括醛类、醇类、酸类、烃类、酯类、酮类、萜类和酚类。观察到了定性和定量的差异。
