• 分阶段接收馏出液总产率不变情况下得到相当比例的质量油。

    Besides, Litsea cubeba oil of high quality may be extracted from distillate obtained from different stages without changing the total yield.

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  • 采用微波辐照技术提取制备柠檬醛,使山苍子精油提取率较传统直接水蒸气蒸馏法平均提高36.5%以上

    By microwave irradiation, the citral was obtained from Litea cubeba fruits, the yield was risen in average 36.5% than by traditional distillation in a current of steam.

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  • 本文利用中柠檬醛合成柠檬香料进行改进。

    The synthesis of lemonile perfume from litsea cubeba oil is newly studied and re-formed.

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  • 简略叙述甲基紫罗兰香气特征及其香精方面应用主要介绍了山苍子精油中提取柠檬醛来合成甲基紫罗兰酮的方法

    The aroma characteristic of methyl ionone and its application in essence is outlined briefly. The synthetic method of methyl ionone by using citral from litsea cubeba oil is mainly introduced.

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  • 采用减压间歇精馏方法天然产物中提取柠檬醛产品精制过程进行了研究。

    The refining process of citral product from natural litsea cubeba was studied by means of vacuum batch distillation.

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  • 实验结果表明,超声波法可以提高,此外山苍子粗油具有较好的抗氧化作用,可以有效的清除自由基、超氧自由基。

    The result was as the following: the extracting rate of Litsea Cubeba oil was enhanced by ultrasonic, Litsea Cubeba oil has a great effect on the elimination of free radical.

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  • 山苍用途十分广泛特别是主要成份柠檬醛深加工产品

    The Litsea cubeba oil has wide USES, especially deep-processed products of its citral, which is the main element of Litsea cubeba oil.

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  • 利用山苍合成了紫罗兰酮,并采取正交设计进行了条件优化试验,得出合成最佳反应条件.。

    The ionone was synthesize form litsea cubeba oil, the optimal experiments of reaction conditions were carried by orthogonal test, the optimum synthesizing conditions were obtained.

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  • 目的研究山苍子提物柠檬的抗哮喘作用及其机理

    AIM: To study antiasthmatic effect of citral from aqueous extract of fruit of cubeb litsea tree and its mechanism.

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  • 估算组分容,计算了油组分的蒸发热。

    A method for estimating heat of components of litsea cubeba oil was proposed.

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  • 实验结果表明超声波可以提高山苍子粗油可以有效清除羟自由基、超氧自由基。

    The results showed that the extracting rate of Litsea Cubeba oil was enhanced by ultrasonic, and Litsea Cubeba oil has a great effect on the elimination of free radical.

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  • 从而通过水蒸气精馏真空精馏山苍中单离柠檬醛产品提供必要的理论依据。

    These results provided the necessary theoretical basis for seperating citral from Litsea citrata oil and designing the distillation column.

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  • 山苍提取出柠檬醛,硫酸羟胺反应生成脱水后可得到柠檬腈。

    Lemonile was manufactured by the dehydration of citral oxime obtained by the reaction of hydroxylamine sulfuride and citral abstracted from litsea cubeba oil.

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  • 本文介绍用PEG - 20 MOV- 101毛细管分离,以气相色谱质谱联用检测方法我省精油化学成分进行分析研究

    In this paper, method of PEG-20M and OV-101 Stainless Capilliary Column on GC-MS is adopted to analyse and study the chemical components of essential oil of Litsea cubeba Pers. in Jiangxi province.

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  • 蒸馏提取柠檬醛工艺过程进行热量衡算,给出了原料和能量消耗计算结果。

    The heat balance of technological process for distill citrals out from litsea cubeba oil has been developed, which shows that the consumptions of the rectifying energy were relatively small.

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  • 目的探讨念珠诱导药实验的反应情况,进一步评价山苍子念珠菌的作用及临床应用价值。

    Objective To investigate whether its likely to induce Lisea cubeba oil-resistant Candida albicans mutations in vitro, in order to give further evaluations of its antifungal actions for clinical use.

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  • 目的探讨念珠诱导药实验的反应情况,进一步评价山苍子念珠菌的作用及临床应用价值。

    Objective To investigate whether its likely to induce Lisea cubeba oil-resistant Candida albicans mutations in vitro, in order to give further evaluations of its antifungal actions for clinical use.

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