薰衣草有效成分研究进展

为全面综合了解和熟悉关于薰衣草的有效成分,给薰衣草精油的开发应用提供创新思路,本文研究了薰衣草的产地、薰衣草的应用、薰衣草精油的提取及化学成分研究等方面的现状,并提出了薰衣草开发利用的新思路。     

薰衣草精油的研究进展

为了全面了解薰衣草精油的研究现状,为我国薰衣草精油的开发利用提供思路.本文综述了薰衣草的栽培措施、薰衣草精油的应用、薰衣草精油的提取及化学成分研究等方面的现状,并提出了薰衣草精油开发利用的新思路.     

对话伊帕尔汗：“太空蓝”薰衣草，中国成分的崛起

<正>特色植物是民族品牌破局的关键一招。提起薰衣草,很多人脑海中的第一印象可能是法国普罗旺斯。然而,同纬度的中国新疆伊犁也是世界上薰衣草三大产地之一。在那里,生长着一个全新品种——“太空蓝”薰衣草。身为新疆生产建设兵团农四师直属的企业,新疆伊帕尔汗香料股份有限公司（以下简称“伊帕尔汗”）通过15年太空育种,打造出了中国人自己的薰衣草种子,使新疆伊犁变成中国的薰衣草之乡。然而新疆伊犁的薰衣草并不完全是大自然的馈赠,培育薰衣草的路充满坎坷。在1963年以前,国内轻工业日化生产所使用的薰衣草精油全部来自进口,绝大多数行业人甚至只知精油,不见薰衣草。     

薰衣草精油微胶囊研究进展及其在纺织上的应用

薰衣草精油作为具有芳香治疗功能的物质，在日化、食品、医疗等领域有广泛应用，但在生活中的长效利用受到限制。微胶囊法作为一种包合技术实现对薰衣草精油的封装，同时利用纺织技术将微胶囊与纺织品结合，实现精油在纺织品上的持久稳定释放，营造芳香生活环境。结合国内外研究现状，本文对薰衣草精油微胶囊的制备技术以及芳香纺织品的构建方法进行阐述，并对研究方向和前景进行展望。     

薰衣草精油成分分析及其抗菌和抗氧化活性研究

通过使用GC-MS联用技术对薰衣草精油进行分析,从中鉴定了33种化学成分,占总含量的93.55%。其中,乙酸芳樟酯和芳樟醇的质量分数最高,分别达到了32.47%和28.68%;其次为石竹烯,桉叶油醇,4-松油醇,质量分数分别为5.75%、3.58%和2.88%。薰衣草精油的DPPH抗氧化研究表明,薰衣草精油具有体外清除DPPH自由基的能力,其50%抑制率(IC5)0为22.94%。此外,对薰衣草精油的抗菌研究表明,薰衣草精油对大肠杆菌、金黄色葡萄球菌和白色念珠菌都具有一定的抗菌能力。     

新疆薰衣草规模化生产中的主要问题及应对策略

在简单介绍新疆薰衣草引种栽培历程的基础上,从栽培技术的运用和良种筛选培育的角度阐述新疆在薰衣草规模化生产中存在的问题,并针对性地提出了应对策略.指出在当前生产中存在的种子繁殖效率低、定植密度的确定缺乏品种针对性,以及冬前修剪、水分调控及中耕不到位等栽培技术问题.同时指出品种退化、良种筛选缺乏、育种滞后和品种混杂等问题,...     

薰衣草及其精油的研究进展

综述了薰衣草的晶种及生态特征、精油化学成分、药理药效和质量控制等方而的现状,许展望了薰衣草及其精油今后的研究方向,以期为今后更深入研究和开发蘸衣草资源提供一定科学依据。     

薰衣草吸附干燥特性及工艺条件研究

在吸附干燥实验装置上测定了薰衣草干燥曲线,研究其干燥过程动力学特性;实验考察了吸附干燥条件对薰衣草中药用成分(总黄酮、木犀草素和芹菜素)的影响,采用正交实验优化干燥工艺条件。结果表明:降低干燥介质相对湿度、提高干燥温度和干燥介质空速度,可明显提高薰衣草吸附干燥速率;相对湿度是影响总黄酮含量的主要因素,木犀草素对干燥温度最为敏感。薰衣草吸附干燥较适宜的工艺条件为:温度30℃,干燥介质相对湿度16%,空速905h~(-1);在此条件下,干燥薰衣草中总黄酮含量为2.673%,芹菜素含量为0.976%,木犀草素含量为0.0245%。Midilli-Kucuk模型可较好拟合薰衣草吸附干燥特性曲线;在较适宜条件下,薰衣草吸附干燥过程动力学方程为:WR=0.9834exp(-5.484×10~(-4)×t~(1.46))-6.2934t。     

新疆产薰衣草油主要成分的含量测定

薰衣草油(Lavender Oil)是重要的天然香料之一。为多种香妆品加香中的主要香成分。用量较大且普遍。多年来,通过对“薰衣草引种栽培加工应用技术的研究”,目前年产量已达10吨左右。新疆薰衣草已成为我国主要的生产基地之一。为了给薰衣草的     

新疆两企业合作开发野生薰衣草

新疆薰衣草将越来越香。新疆香袭人薰衣草生物科技公司和乌鲁木齐迪飞特科技公司两家企业将在未来3年内共同投资100万元研究和试验大规模种植野生薰衣草的可能性,开发位于阿尔泰山的野生薰衣草,此举将使该区的薰衣草产业更上一个台阶。     

Antioxidant Properties of Three Aromatic Herbs (Rosemary, Thyme and Lavender) in Oil-in-Water Emulsions

Lipid oxidation is the major form of deterioration in foods because it decreases food quality and nutritional value, and may have negative health implications. Selected aromatic plant extracts from leaves, flowers and stems of rosemary, thyme and lavender were investigated for their antioxidant activity. The total polyphenol content was determined by the Folin–Ciocalteu assay and the antioxidant capacity was determined by the Trolox equivalent antioxidant capacity, 1,1-diphenyl-2-picrylhydrazyl, oxygen radical absorbance capacity and ferric-reducing antioxidant power assays. For all four antioxidant assays, the extracts from thyme flowers, lavender leaves and thyme leaves had the highest antioxidant activity, followed by rosemary stems, rosemary leaves, and lavender stems, and the lavender flowers and thyme stems had the lowest antioxidant activity. The antioxidant activity was correlated with the polyphenol content, although minor deviations were observed. In oil-in-water emulsion, extracts from rosemary leaves and thyme leaves were most effective at retarding oxidation followed by the rosemary stems and thyme flowers. Extracts from thyme flowers and lavender leaves were less effective in the emulsion than predicted by the homogeneous antioxidant assays. This study demonstrated the potential use of plants extract as substitutes for synthetic antioxidants.     

Natural functionalisation of a traditional textile “Ehram”

This study is focused on the natural functionalisation of a traditional woven fabric called “Ehram”. Which is a wool based woven fabric constituted from wool yarns that are originally coloured and used in different cities of the Eastern Anatolian Region, Turkey. Because these fabrics were originally coloured (pigmented), the study aimed to functionalise them with minimal colour changes from their original colour. For this aim; lavender (Lavandula angustifolia) which is also a natural source of pleasant odour was used in finishing of Ehram. The colour changes by the application of the lavender on Ehram and the benefits that come out from the use of lavender were then analysed and presented in the study. In this respect, antibacterial activities (against Staphylococcus aureus and Escherichia coli) of dyed samples were tested within the scope of the study. In addition, colour measurements (K/S and CIE L*a*b* C* and h^o) and FTIR (Fourier-transform infrared) microspectroscopy analyses of dyed fabric samples were made and microscope images were taken. It was observed that lavender with a copper-based mordanting agent can present antibacterial activity against S. aureus and E. coli in Ehram.     

Antioxidant activity of some plant extracts of the family labiatae

The antioxidant activities of methanol extracts of oregano, dittany, thyme, marjoram, spearmint, lavender and basil were tested in lard stored at 75°C. The concentration of extracts in lard varied from 0.01 to 0.20%. Oregano extract was found to be the most effective in stabilizing lard, followed by thyme, dittany, marjoram and lavender extracts, in a decreasing order. The induction period of lard increased with antioxidant concentration. After the induction period, peroxide formation proceeded rapidly, following pseudo-zero order reaction kinetics. The rate of the reaction decreased slightly with increasing plant extract concentration. Combined addition of plant extracts in lard showed a low synergistic action between thyme extract and spearmint extract.     

重整精油

讲述天然精油重整的必要性、重整方法和重整过程。列举了玫瑰与薰衣草2个重整精油实例以供参考。     

A further study of the kinetics and optimization of the essential oil hydrodistillation from lavender flowers

Hydrodistillation has commonly been used to recover essential oil from various plant materials, including lavender (Lavandula officinalis) flowers. The main objectives of the present study were to model the kinetics of the lavender essential oil (LEO) hydrodistillation using a phenomenological model, to evaluate the statistical significance of the hydromodule and hydrodistillation time on LEO yield combining a 4² full factorial design with the response surface methodology, to model statistically LEO yield by multiple non-linear regression and to determine the optimal process conditions that provided the maximum LEO yield. The fast-essential oil distillation (washing stage) in the initial period and the slow diffusion stage until the saturation occurring simultaneously were observed, justifying the use of the phenomenological model. With increasing the hydromodule, the saturation LEO yield and the washable fraction of the LEO decreased while the washing and diffusion rate constants increased. Knowledge of the LEO oil yield and the hydrodistillation kinetics is important from the techno-economical point of view.     

薰衣草油提取和切割方法的研究

以正己烷、丙酮为溶剂,分别采用溶剂萃取法和水蒸气蒸馏提取薰衣草油,通过GC/MS定性分析提取物组成。结果表明,溶剂萃取法的收率是水蒸气蒸馏的 5倍以上,且萃取物中乙酸芳樟酯含量高于后者,峰面积百分比达到 20%以上,但杂峰数量多;相对来说,丙酮提取物中的低沸点组分偏多,正己烷提取物中的高沸点组分偏多。水蒸气蒸馏提取物中芳樟醇的峰面积百分比达到 34%,樟脑的峰面积百分比超过 5%,均明显高于溶剂萃取。针对正辛烷 /正庚烷 /异戊醇模拟体系的水蒸气蒸馏实验表明,水蒸气蒸馏能优先提取混合物中低沸点、强极性组分,可用于薰衣草油的精制和切割。     

芳香疗法的由来、作用及其应用

本文介绍了芳香疗法的由来 ,精油对人体的生理、心理和药理作用。同时论述了薰衣草、香叶、桉叶、迷迭香、柠檬、柏木和椒样薄荷等七种精油的性能和实际应用