茉莉酮

Tea processing of aromatic substances in the complex process of chemical change, resulting in some of the fragrant aroma of flowers such as roses can form Phenylethanol incense and jasmine can form jasmone incense to the formation of linalool Magnolia incense Phenylpropanol Shannon can form, such as narcissus.

茶叶中的芳香物质在加工过程中会发生复杂的化学变化，产生某些鲜花的芬芳香气，如苯乙醇能形成玫瑰香，茉莉酮能形成茉莉香，沉香醇能形成玉兰香，苯丙醇能形成水仙香等。

He watched oat seedlings warn each other of danger by releasing jasmonate acid, and tracked the dropping of poisoned leaves by the Sonoran brittlebush to ward off competition.

他观察到燕麦秧苗通过释放茉莉酮酸酯来互相提醒危险，并追踪凋落的被索诺兰矮灌木毒害的叶子的踪迹，以避开竞争。

It could be synthesized by a key intermediate 2-pentylidene cyclopentanone formed a condensation starting from cyclopentanone and n-valeraldehyde, followed by isomerization, Michael addition and a selective decarboxylation.

本文研究了以正戊醛和环戊酮为基本原料，经缩合反应、异构化反应、Michael加成反应和脱羧反应等制备二氢茉莉酮酸甲酯的化学合成方法和工艺。

Dihydrojasmone was synthesized from2-hexyl-5-methyl-1,2-oxaborolane,prepared frommethyl vinyl ketone and hexene,via the homologationwith 〓 followed by PCC oxidation and intra-molecular condensation.In stead of the oxidation ofthe C-B bond of 1,2-oxaborolane,fluoride inducedhalogenation of 2-alkoxy-1,2-oxaborolane was found togive 3-halopropanol.

硼氢化甲基乙烯基酮和已烯得到的2-已基-5-甲基-1，2-氧硼杂环戊烷与〓反应，再经PCC氧化，分子内缩合得到二氢茉莉酮。1，2-氧硼杂环戊烷的C-B键除氧化断裂之外，也能够在〓或KF作用下卤化断裂成碳卤键。

Spectrophotometry was used to determine and extract the content of the flavanone from the leaves of Jasminum sambac Air.

目的为充分利用茉莉花叶植物资源，避免资源的浪费，探讨茉莉花叶总黄酮的提取及鉴别方法。

Methods The flavonoids were extracted by ethanol as the solvent from the leaves of Jasminum sambac Air with ultrasonic wave.

目的为充分利用茉莉花叶植物资源，避免资源的浪费，探讨茉莉花叶总黄酮的提取及鉴别方法。

The studies took a investigation into the main biochemical constituent of the plant, and a set of quantitative analysis method to Jasminum flavonoids was established. Further more, the studies developed a water extract process, and a method to isolate and purificate Jasminum flavonoids.

本实验较全面的分析了茉莉花干的生化成分，研究了以茉莉花干为原料的速溶产品提制工艺，探讨了茉莉黄酮提取纯化条件的优化，并初步探索了茉莉黄酮的检测技术，实验结果如下：本研究建立了茉莉黄酮的分光光度测定方法。

To isolate Jasminum flavonoids, it took an investigation to the effect of various conditions in extraction. The result was with EtOH concentration 70%, temperature 75℃, extraction time 4h and the ratio of solution to liquid 1:15.The studies implemented macroporous resin to enrich Jasminum flavonoids.

在茉莉花干黄酮的提取工艺研究中，以乙醇水溶液为溶剂，考察了不同乙醇浓度浸提液、不同浸提时间，不同浸提温度和不同料液比对茉莉黄酮提取效果的影响，通过正交实验确定了茉莉黄酮的最佳提取工艺为乙醇浓度70％，温度75℃，提取时间为4h，固液比为1：15。

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。

Aromatic constituents of Huangdan Oolong tea were analysed with GC and MS and were compared in different green-making humid conditions.The major aromatic constituents of Huangdan Oolong tea were nerolidol,α-farnesene, linalool and its oxide, geraniol, pheny lacetal dehyde, indole, cis-jasmine lactone β-ionone cis-jasmone, benzyl acetate and so on.At the same temperature,the content of aromatic constituents were different, the aromatic quality in the 75% humid condition was better,which was more fragrant and kept longer.

用GC/MS法分析了黄旦品种乌龙茶的香气组分，并对不同湿度做青环境条件下生产的乌龙茶香气组分进行比较分析表明：黄旦乌龙茶主要香气成分为橙花叔醇、α-法呢烯、芳樟醇及其氧化物、香叶醇、苯乙醛、吲哚、顺-茉莉内酯、β-紫罗酮＋顺-茉莉酮、乙酸苄酯等；在相同温度（23℃），不同湿度做青环境生产的黄旦乌龙茶香气主要特征成分含量和精油总量各不相同，且香气品质以做青环境相对湿度75％为好，香气高且持久。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。