查询词典 volatile oil

Mentha haplocalyx Briq.; Volatile oil ; Menthol ; Extraction method

薄荷；挥发油；薄荷醇；提取方法

The main effective components of the volatile oil from Schizonepeta tenuifolia Briq. by GC-MS are pulegone and menthone. In addition, dihydrojasmone and terrein that had never been reported in literature have been identified.

由GC-MS鉴定出挥发油的主要有效成分是胡薄荷酮和薄荷酮，并鉴定出了二氢茉莉酮、土曲霉酮等文献未曾报道过的成分。

The aim of the research was to seek for chemical constituents, antibacterial activities and antitumor activities of volatile oil extracted from the leaves of Michelia maudiae Dunn.

［目的］研究深山含笑叶挥发油的化学成分，进行体外抑菌是固体试验和抗肿瘤试验研究。

The concentration of volatile oil is higher, the reducing capability is stronger. Compared with common antioxidations, the antioxidant capacity of two species Michelia were stronger than that of PA, PG and Vc.

通过与常用抗氧化剂进行比较，发现两种含笑叶片挥发油的抗氧化能力均强于植酸PA、没食子酸丙酯PG和抗坏血酸Vc。

Objective:To establish a optimal technical conditions for of the extraction of volatile oil from Pericarpium Citri Reticulatae by supercritical CO_2 extraction.

目的：研究超临界CO2萃取陈皮挥发油的最佳萃取工艺条件。

The contents of 6-gingerol and volatile oil of each sample were measured by HPLC and the method described in CP respectively. The pharmacognostical identifications of processed samples were also compared.

方法采用HPLC法和挥发油测定法，以干姜辛辣成分6-姜酚、挥发油含量、药材性状为指标对犍为县不同加工方法的干姜进行质量对比研究。

Methods The samples were dried in different processing methods and at 4 temperatures. The contents of 6-gingerol and volatile oil of each sample were measured by HPLC and the method described in CP respectively. The pharmacognostical identifications of processed samples were also compared.

方法采用HPLC法和挥发油测定法，以干姜辛辣成分6-姜酚、挥发油含量、药材性状为指标对犍为县不同加工方法的干姜进行质量对比研究。

MethodsThe samples were dried in different processing methods and at 4 temperatures. The contents of 6-gingerol and volatile oil of each sample were measured by HPLC and the method described in CP respectively. The pharmacognostical identifications of processed samples were also compared.

方法采用HPLC法和挥发油测定法，以干姜辛辣成分6-姜酚、挥发油含量、药材性状为指标对犍为县不同加工方法的干姜进行质量对比研究。

Result: The yield of S4 was 18.63 % and 29.99 % higher than that of CK1 and CK2, respectively. The contents of volatile oil and pulegone were also higher than those of CK and other strains in this test.

结果：S4品系比CK1增产18.63%，比CK2增产29.99%，达到极显著水平，且挥发油和胡薄荷酮含量也高于其他参比品系和对照；S16品系与CK产量上无显著差异，抗病性比较强。

Tenuifolia in 2007. Method: The test fields were divided into blocks randomly, and the agronomy characters were investigated in harvest time; the content of volatile oil was measured by steam distilation and the pulegone were determined by HPLC.

田间实验采用随机区组设计，收获期调查其主要农艺性状；采用水蒸气蒸馏法测定挥发油含量，HPLC测定胡薄荷酮含量。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。