柏木油化学成分的分析研究

利用气相色谱－质谱联用仪对柏木油化学成分进行了研究。共鉴定出３７种组分。其主要成分为α－雪松烯,γ－衣兰油烯,α－雪松醇,苎烯等。峰面积归一化结果表明,柏木油中α－雪松烯含量最高,约占总量的３３％。     

用柏木油合成柏木酮的研究

本文介绍以柏木油的主要成分之一的柏木烯为主要原料，经氧化合成木香型香料柏木酮，探讨了所需原料配比，选择了氧化剂，试验了工艺条件。     

用柏木油合成柏木酮的研究

本文介绍以柏木油的主要成分之一的柏木烯为主要原料，经氧化合成木香型香料柏木酮，探讨了所需原料配比，选择了氧化剂，试验了工艺条件。     

柏木油的深加工

<正> 一、前言 柏树的根、茎及枝中都含有挥发油,其碎片经水蒸汽蒸馏可获得柏木原油(一般出油率为2～5％)。减压蒸馏柏木原油可得柏木精油,其主要成份是柏木烯、柏木醇及少量萜烯类化合物。由柏木烯、柏木醇可合成柏木系列香料。这些香料具有木香、甜香、龙延香(属东方香型,且其留香期长、香型稳定),深为人爱,在医药、香料、香皂及杀虫药等方面得到广泛的应用。 在我国,特别是南方山区,柏树资源比较丰富。近年来每年生产一千多吨柏木精油,除国内使用其小部分外,大部分都出     

我国柏木油生产中存在的问题与对策

我国是柏木油生产国之一,也是柏木原油出口最多的国家。但如何变出口原油为出口柏木油深加工系列产品?怎样经营管理好柏木油的加工与贸易?制定柏木油国家标准更是当务之急。文中阐述了相应对策并介绍了提高柏木油质量和得率的3个技术关键问题。     

我国柏木油生产中存在的问题与对策

我国是柏木油生产国之一，也是柏木原油出口最多的国家，但如何变出口原油为出口柏木油深加工系列产品？怎样经营管理好柏木油的加工与贸易？制定柏木油国家标准更是当务之急。文中阐述了相应对策并介绍了提高柏木油质量和得率的３个技术关键问题。     

柏木油市场态势

由于经济形势对香料油行业的影响，四年来，柏木油价格首次在节期里下滑。12月份，中国柏木油的CIF价格由2008年6月的9．25美元／kg下跌到9．00美元／kg。     

番茄红素提取及优化研究

从番茄中提取番茄红素,研究了在不同的提取温度、时间、料液比、pH值等因素下的提取效果,并用正交实验确定了最佳的工艺条件.     

檀香化合物的合成研究进展

综述了天然檀香主要香气成分的研究进展以及檀香类化合物的合成状况,并对合成的三种檀香型香料的研究现状进行了分析介绍,重点介绍了以莰烯为原料合成檀香803的各种路线,并提出了自己的观点。最后对檀香803的合成前景进行了展望。     

Comparative Effects of Sandalwood Seed Oil on Fatty Acid Profiles and Inflammatory Factors in Rats

The aim of the present study was to investigate the effect of sandalwood seed oil on fatty acid (FA) profiles and inflammatory factors in rats. Fifty male Sprague–Dawley rats were randomly divided into five different dietary groups: 10 % soybean oil (SO), 10 % olive oil (OO), 10 % safflower oil (SFO), 10 % linseed oil (LSO) and 8 % sandalwood seed oil blended with 2 % SO (SWSO) for 8 weeks. The SWSO group had a higher total n-3 polyunsaturated fatty acids (PUFA) levels but lower n-6:n-3 PUFA ratios in both adipose tissue and liver than those in the SO, OO and SFO groups (p < 0.05). Although the SWSO group had a much lower 18:3n-3 level (4.51 %) in their dietary lipids than the LSO group (58.88 %), the levels of docosahexaenoic acid (DHA: 22:6n-3) in liver lipids and phospholipids of the SWSO group (7.52 and 11.77 %) were comparable to those of the LSO group (7.07 and 13.16 %). Ximenynic acid, a predominant acetylenic FA in sandalwood seed oil, was found to be highly incorporated into adipose tissue (13.73 %), but relatively lower in liver (0.51 %) in the SWSO group. The levels of prostaglandin F_2α, prostaglandin E₂, thromboxane B₂, leukotriene B₄, tumor necrosis factor-α and interleukin-1β in both liver and plasma were positively correlated with the n-6:n-3 ratios, suggesting that increased n-6 PUFA appear to increase the formation of pro-inflammatory cytokines, whereas n-3 PUFA exhibit anti-inflammatory activity. The present results suggest that sandalwood seed oil could increase tissue levels of n-3 PUFA, DHA and reduce the n-6:n-3 ratio, and may increase the anti-inflammatory activity in rats.     

葡萄籽油浸提工艺的研究

以葡萄酒厂副产品葡萄籽为原料,石油醚（30～60℃）为浸提剂,利用索氏提取器提取葡萄籽油。考察了粉碎粒度、料液比、浸提浴温、浸提时间对葡萄籽油提取率的影响。结果表明：葡萄籽粉碎粒度为60目,料液比（g/mL）1∶6,浸提浴温80℃,浸提时间120 min时葡萄籽精油提取率为14.86%。实验制得葡萄籽油理化指标均符合国家食用油标准。     

Contents of Fatty Acids, Selected Lipids and Physicochemical Properties of Western Australian Sandalwood Seed Oil

The study was designed to characterise two extracts of Western Australian sandalwood (Santalum spicatum) seed oils for their physicochemical and lipid characteristics. Sandalwood plantation’s surplus seeds could be used for their oil content, to improve the commercial viability of this industry. The seed oils were obtained by solvent extraction and supercritical carbon dioxide extraction respectively. Important physicochemical parameters were compared with other oils commonly used in pharmaceutical and cosmetic products. Acid values were found to be higher (6.0–7.5 mg KOH/1 g oil) while peroxide values (6.7–9.0 mequiv/Kg) were lower than reported for other oils. Tocopherols were found to be lower than those usually reported for nut oils (α-tocopherol 1–3 mg/100 g; δ-tocopherol 2.2–5.7 mg/100 g), squalenes and phytosterols were found in considerable quantities. The fatty acid content consisted largely of ximenynic acid (35 %) and oleic acid (52 %). No oxidative derivatives of fatty acids were observed. Although there were statistically significant differences in some properties, the magnitude of these were insufficient to conclude there were any notable differences in the two oil extracts.     

葵花籽油提取方法的研究

应用超声波法和索氏法,采用均匀实验设计,研究了各种因素对葵花籽油提取率的影响,确定了葵花籽油的最佳提取条件,为葵花籽油的大规模工业生产提供技术参考.     

超临界萃取生姜中姜油的研究

研究了应用超临界二氧化碳萃取生姜的工艺条件,结合萃取压力、温度、时间,物料水分、粒度等参数对萃取率的影响。采用单因子变化的实验方法,得出生姜萃取率的最佳工艺条件为：压力20MPa,温度40℃,二氧化碳流量20L／h,时间2h。     

蜀葵子脂肪油提取工艺的研究

考察了蜀葵子中脂肪油的提取工艺。通过测定油脂的理化性质优化提取方法,并通过单因素试验和正交试验设计考察提取时间、温度、功率、溶剂、料液比等因素对蜀葵子脂肪油提取率的影响。选择石油醚为最佳提取溶剂,超声为最优提取方法,提取条件为超声功率200 W,超声温度30℃,提取时间40 min,料液比1:10(g/mL),粉碎度为50目,提取次数为1次。在此条件下蜀葵子脂肪油的提取率可达12.57%。优化得到的工艺合理可行,比较适合蜀葵子脂肪油的提取。     

以混合溶剂精制润滑油

以混合溶剂精制润滑油杨卓如黄洪杨晓燕兰仁华陈焕钦（华南理工大学化工学院，广州５１０６４１）关键词润滑油溶剂精制糠醛１前言目前，我国在润滑油精制过程中仍主要用糠醛作为溶剂。糠醛精制装置占溶剂精制装置的７５．８％，其精制工艺已趋于成熟。预计糠醛精制仍将...     

发用防晒成分芦荟甙的提取

芦荟甙不仅具有防晒功效,而且还具有润泽、软化头发,防止断发、护发止痒的功效.设计正交实验,用乙醇水溶液回流溶出芦荟甙,用减压蒸馏的方法得到产品,并找出最佳反应条件.用溴水和红外光谱定性分析,证明了所得产品为芦荟甙.将芦荟甙加入洗发香波中,使用效果良好.实验方法操作简单、可行性高,为芦荟的提取研究提供数据.