Limonene needed in recycling foamed polystyrene was extracted from the ear of schizonepeta tenuifolia using ligroin.

本文穗中提取回收聚苯乙烯所需的柠檬烯,其方法是溶剂萃取。

Limonene: Occurs in various oils such as Levant wormseed oil, pine needle oil and other oils.

出现在各种油如Levant土油、松针油和其他油中。

Moreover, those impurities, as menthone, isomenthone, limonene, 1, 8-cineol and bata-pinene contents of Hai-Xuan mint are lower than that of 73-8mint.

原油中薄荷酮、异薄荷酮、柠檬烯、1,8-桉叶素、β-蒎烯等均低于“73～8”。