二氢月桂烯醇的合成及其质量分析评估

二氢月桂烯醇具有新鲜的花香香气,并伴有强烈甜美的柑桔和香柠檬样的香韵。它在许多日化香精配方中,尤其是在花香型的化妆品和香皂、洗涤剂和空气清新剂的香精配方中应用广泛,颇受调香界的青睐,近年来使用量不断上升,在国际市场上亦已成为大宗性香原料。     

凌仕契合香精的香气分析及模拟研究

通过顶空固相微萃取-气相色谱/质谱技术,结合感官分析,对凌仕契合香精的香气组成和香韵结构进行了分析,得出了果香韵、醛香韵、青香韵、木香韵、花香韵和海洋香韵等6种不同香韵,以及34种调配原料。考察了不同香韵组成对香精主体特征香气的影响,最终模拟得到了香气相似度较好的凌仕契合香精。     

芦柑香精的调配

采用GC/MS联用方法对冷榨芦柑油进行分析,得到57种芦柑油香气成分。对芦柑香韵进行分类,并阐述了芦柑香韵的诸个香原料的香气、运用及调香技巧。通过多次试验得到芦柑香精的6种香韵及其百分含量：果皮香韵0.1%～2%,果髓香韵0.02%～1%,果汁香韵20%～90%,水果香韵0.1%～1%,青香韵0.01%～0.2%,花甜香韵0.1%～1%。由以上6种香韵组成的芦柑香精其香气轻快,果香新鲜清甜,又有成熟的芦柑果皮的香气。     

海洋清花香型香精的研究

通过顶空固相微萃取-气相色谱质谱技术．结合感官分析,对海洋花香型香精的香气组成和香韵结构进行了分析,得出了5种不同果香、清香、海洋香、花香、龙涎麝香香韵的28种原料,并考察了不同香韵组成对香精主体特征香气的影响,最终模拟得到了香气相似度较好的海洋花香型香精。     

果香韵和花香韵在男士馥奇香型香水香精仿配中的应用

通过研究一款男士馥奇香型香水,利用气象色谱-质谱联用技术(GC—MS)和感官评定对香水样品进行分析,确定了该香水香精的香韵组成及香气特征,并在此基础上拟定了配方进行了仿配。在仿配的过程中重点分析了果香韵和花香韵对于仿配香精香气的影响,通过实验不断修正配方中果香韵和花香韵的香原料种类和用量,最终得到较优化的香精配方以及仿样。在最终的配方中果香韵原料共用了5种,占配方2.5%;花香韵原料共用了18种,占配方17.6%。     

新产品集锦(141)

<正>SAFC公司推出的"γ-松油烯,95%,FG"(FEMA#3559,CAS#99-85-4),有着一种萜类,柑桔,白柠檬样的香味,油腻的和青香味特征,还有一种热带水果的香韵。它的香气特征是油腻的,木香,萜烯,柠檬/白柠檬,热带水果和药草香气。在食品香精中,它可以用于孜然、芫荽和百里香食品香精中。在日化香精中,它可以用于柑桔、药草、白柠檬、肉豆蔻和圆柚香气的日化香精中。www.sigmaaldrich.com/safc SAFC公司推出的"天然δ-十二烯内酯异构体混合物≥98%,FG"(FEMA#2401,CAS#713-95-1),     

一款流行中性香水香精的仿制研究

为仿制表现了上世纪90年代生活方式的某畅销品牌香水"A1",首先利用GC-MS对市售商品进行分析,并结合嗅觉评析确定了仿样香水香精的香韵、香原料及用量,并通过气味指纹分析仪对仿制香水小样与原样进行了对比测定.分析结果为:某畅销品牌香水"A1"为柑橘-花香香型.头香主要由香柠檬、甜橙和柠檬等香韵构成,另外还具有轻微的青绿香调和少量肉豆蔻的香气;体香由玫瑰、茉莉、铃兰和紫罗兰等的复合花香构成;底香由琥珀、麝香、檀香和橡苔等构成.原料香气比例大体为:9%柑橘、1%辛香、0.3%苔青、0.4%格蓬、55%花香、2%青香、3%木香和23%琥珀-麝香.     

清新东方香水香精的模拟研究

运用气相色谱-质谱联用技术对清新东方香水香精的香气成分进行了分析,结合香气感官评定对香韵结构进行了研究,得到了61种芳香化合物,其中柑橘香韵化合物14种、清香韵化合物13种、花香韵化合物16种、浆果香韵化合物5种、琥珀香韵化合物10种;并通过香精调配技术考察了不同香气组成和香韵结构对模拟香精香气质量的影响,得到了较为优化的香精配方和样品;此外,利用香气指纹分析(电子鼻)技术对模拟香精的香气相似度进行定量分析,其香气相似度可达94.77%。     

一款男士香水香精的仿配研究

本文以一款男士香水为研究对象,通过利用气象色谱-质谱联用技术(GC—MS)对香水样品进行分析,并结合感官评定,确定了该香水香精的香韵组成及香气特征,并在此基础上拟定了配方进行了仿配。通过实验不断对配方进行修正,最终得到优化后的香精配方,结果为:2.5%果香韵,17.5%花香韵,16%海洋香韵,42%青(清)滋香韵,0.5%豆香韵,16%木香-龙涎香韵,0.4%琥珀-膏香香韵,5%动物香韵和0.1%辛香韵。经过三角测试,仿样香精的整体香气圆合、协调,并与香水样品的香气有一定的相似度。     

Mannieh反应合成香柠檬醛

香柠檬醛的结构式为: 它兼具浓郁、新鲜的柠檬香气和柑桔香气。是配制优质香精的高级香料之一,也可以由它合成若干种高级香料。 1969年美国I·F·F公司对本品的合成已正式获得专利权。我国对香柠檬醛的合成     

Imperial Leather Original皂用香精的仿制

介绍了Imperial Leather Original 皂用香精的特点及其香韵组成,详细叙述了如何运用不同香韵的单体原料仿配该香精的过程.讨论了香精的稳定性试验和三角试验.     

Gas chromatographic analysis of fragrances in palm-based white soaps

Four commercial soap fragrances 1,2,3, and 4 were incorporated in palm-based white soaps and made into bars. The soap bars were stored at 25°C and 40°C for three months. The headspace gas-chromatographic volatiles, fragrance odor intensity and whiteness analyses of the soap samples were carried out at 10-day intervals. By means of gas chromatography and mass spectrometry, some of the headspace gas-chromatographic peaks were identified. These peaks were useful in monitoring the fragrance components. For example, fragrance 4 contains the components limonene and citronellal which are known to possess a citrus odor component. Fragrance odor intensity scores showed that the intensity of the fragrances in the soap base was the same for all. Results also showed that most of the fragrances had the same effect on the whiteness of palm-based white soaps, except for fragrance 2 which gave a pink color to the white soaps. Equations were established between the fragrance odor intensity and area under the gas-chromatographic peaks. The equation can give useful information on the fragrance odor intensity by calculating the area of the chromatographic peaks; the fragrance odor intensity is a reflection of the fragrance retention in palm-based soaps.     

透明香皂、多功能香皂的发展

简要介绍和分析了普通香皂、透明皂、酸性皂和多功能皂的性能、特点和发展趋势。各种香皂都有不同的特点，其中以酸性皂、多功能皂性能最佳，指出酸性皂、多功能皂是香皂今后发展的主流。     

常用洗涤剂对香精稳定性的影响

阐述了肥皂、洗衣粉、洁厕剂、油污净、洗衣液等产品中的成分以及这些产品提供的环境对加入的香精稳定性的影响,并对以上种类的洗涤剂所提供的环境对大多数香精稳定性的影响程度做了一个大致排序。     

固相微萃取法提取香皂香气成分的影响因素及萃取条件优化

使用顶空固相微萃取（HS-SPME）作为提取香皂中香气的样品前处理技术,研究了香皂基质的浓度对香气物质萃取效率的影响。采用蒸馏水稀释降低了香皂的黏度,增加了顶空中香气成分的浓度。进一步研究了电解质NaCl用量、萃取温度、萃取时间和萃取头种类等提取条件,最终确定HS-SPME萃取香皂香气物质的最佳条件为：采用弱极性的50μm DVB/CAR/PDMS联合65μm PDMS/DVB及75μm CAR/PDMS等萃取头,香皂基质浓度为0.25%,电解质NaCl为饱和溶液,吸附温度为45℃,吸附时间为45min,样品解吸时间为2.5min。     

Lather stability of soap solutions

The stability of soap foams in the presence of calcium ions was studied. Laundry and toilet soap bars available at the local market were used. The soap equivalent/calcium equivalent ratio is pro-posed as an objective quality criterion.     

Antimicrobial activity of aroma chemicals and essential oils

Determination of the minimum inhibitory concen-trations (MIC) of 212 common soap fragrance raw materials demonstrated that the paper disc-petri plate technique does not reflect the relative anti-microbial activity of these materials. Commonly used soap bacteriostats were shown to be 100 to 1000 times more effective than the most active fragrance materials. Of 521 fragrance materials initially screened by the petri plate method, 44% were inhibitory against one of the three test organisms, and 15% were effective against all three(Staphylococcus aureus, Escherichia coli, Candida albicans). Of a selected number (212) of these positive materials, subsequently screened against a lipophilic diphtheroid organism(Corynebacterium sp.), 64 materials (30%) were positive against all four test organisms. However, only nine materials (4%) had a MIC as low as 50 ppm compared to the common soap bacteriostat TCC, which had a MIC of 0.08 ppm (vs.S. aureus). In hand-degerming tests, no reduction of bacterial counts was obtained with a soap containing the most active fragrance materials. These results demonstrate that creation of a practical antimicrobial soap fragrance does not appear to be possible. 1Preliminary report presented at the 1976 national meeting of the American Chemical Society, Miami Beach, FL, September 1978.     

不同工艺制得玫瑰精油香气差异对比分析

采用水蒸气蒸馏法、溶剂萃取法、超临界CO2萃取法提取玫瑰精油,采用气质联用技术对精油进行成分分析,结果表明,超临界CO2萃取法得到的玫瑰精油共有56种成分,以高级醇类和酯类为主,其中酯类相对质量分数是3种方法中最高的,为13%,特征清香成分相对质量分数为4.568%,总体上香气甜而饱满,拥有厚重优雅的底香,油脂味很淡,清香气息相对突出;水蒸气蒸馏工艺玫瑰精油含有60种成分,以高级醇类为主要成分,相对质量分数高达74.492%,主体香气成分相对质量分数最高,为72.057%,但苯乙醇的相对质量分数却只有0.711%,气息虽然香甜,但略显单薄,缺少蜜样香气;溶剂萃取玫瑰精油含有48种成分,以高级醇类和酯类为主要成分,烷酮类的相对质量分数较高,达到4.257%,所以油脂味较重,清香气息不突出,天然感较差.