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Samples were subjected to high pressure ranging from 100 to 500 MPa. After high pressure treatments, the flavour compounds were extracted by Solid-Phase Microextraction. Analysis was carried out by Gas Chromatography-Mass Spectrometry. The key flavour compounds of orange juice were three alkenes (namely limonene, myrcene and α-pinene), two alcohols (linalool and α-terpineol), three aldehydes, one ketone and two esters (ethyl butyrate and 3-OH-ethyl hexanoate).

采用固相微萃取(Solid Phase Microextraction,SPME)方法对不同压力(100~500 MPa)超高压处理的鲜榨橙汁中的香气成分进行富集,并经气相色谱-质谱联用仪(Gas Chromatography-Mass Spectrometry,GC-MS)检测分析,橙汁中的主要香气成分有:3种烯(柠檬烯、月桂烯、α-蒎烯);2种醇;3种醛;1种酮;2种酯(丁酸乙酯、3-OH-己酸乙酯),它们是构成橙汁的主要特征致香成分。

OBJECTIVE To investigate the effect of different content of azone on percutaneous absorption of sinomenine gels in vitro, and to decide an amount of azone for the gel.

目的:考察不同浓度月桂氮酮对青藤碱凝胶透皮作用的影响,为青藤碱凝胶剂的处方筛选提供依据。

The enhancement ability of four different enhancers such as azone, propylene glycol,oleic acid and lauryl alcohol,was investigated when used either uniquely or combinatively each other at random.

对氮酮、丙二醇、油酸、月桂醇4种透皮吸收促进剂单独应用和任意2种合用的促渗效果进行考察。

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