罗勒营养成分研究

对罗勒的基本营养成分进行了较为全面的分析测定。结果表明:罗勒的矿物质元素含量丰富,还有适量的维生素C,蛋白质,脂肪以及果胶等营养成分。因此,罗勒营养成分种类齐全,含量丰富,具有较高的营养价值。     

罗勒的提取和抗菌活性研究

罗勒在设定浓度的乙醇-水溶液中浸泡,过滤浓缩得到浸膏,分别用石油醚、乙酸乙酯、正丁醇进行萃取,获得各个萃取部位,考察罗勒各提取部位对沙门氏菌、金黄色葡萄糖球菌和大肠杆菌的抗菌性能。结果显示:罗勒5个提取部位对三种菌均有一定抑菌效果,其中对沙门氏菌的抑制效果最好。在同样浓度下,乙酸乙酯提取部位对沙门氏菌的抑菌效果最好、石油醚提取部位次之。     

疏毛罗勒挥发油提取工艺研究

研究了疏毛罗勒挥发油的水蒸汽蒸馏法提取工艺，以出油率为考察指标，研究了主要因素如浸泡时间、浸泡温度和蒸馏时间对出油率的影响，并采用正交实验设计方法，得到最佳工艺：浸泡时间8h，浸泡温度25℃和蒸馏时间80min，在该条件下得到的最大出油率为0.57％。     

土耳其罗勒精油组成的变化

土耳其Gaziosmanpasa大学农学院学者IsaTelci等人在“BiochemicalSystematicsandEcology”杂志2006，34（6），489—497页上用英文发表的文章报道甜罗勒（Ocimumbasilicum），最普遍的芳香植物之一，在形态学和精油组分上有很大的变化。     

罗勒精油的提取及其在痱子粉中的应用

罗勒是唇形科一种药食两用植物,其精油具有化湿活血、提神醒脑的功效。实验采用水蒸气蒸馏法对罗勒全草进行精油提取,进而研究出罗勒精油的痱子粉配方。该配方下的痱子粉具有罗勒提神的香气,抗菌消炎效果也有所提高。     

疏毛罗勒挥发油化学成分的研究

本文采用水蒸气蒸馏法提取疏毛罗勒挥发油 ,用气相色谱 质谱联用技术鉴定了疏毛罗勒挥发油的化学成分 ,并比较了几种主要成分在花、茎、叶中的分布。发现疏毛罗勒油的主要化学成分为甲基黑椒酚和反式 α 香柠檬烯 ,其中前者的归一化含量约为后者的三倍。     

玫瑰香叶引种栽培适应性研究

玫瑰香叶1983年从摩洛哥引进我国，经过在云南省昆明、永仁、楚雄、砚山、石屏等地五年多的栽培实验，认为在云南永仁地区的结果较好，得油率0．25％，其中，异薄荷酮7.0％．芳樟醇7．64％；香茅醇18．93％，香叶醇19．58％，甲酸香叶酯5.49％，甲酸香茅酯6．28％。为扩大玫瑰香叶的栽培提供了实验数据．     

Mathematical Modeling of Ocimum basilicum L. Supercritical CO2 Extraction

The effects of pressure and temperature on supercritical extraction of Ocimum basilicum L. in terms of extraction yield and aromatic compounds were investigated. Linalool, eugenol, and δ‐cadinene were indentified as three main compounds of the prepared extracts. The dominant compound in all investigated supercritical basil extracts was linalool. Within the experimental range the extraction parameters had a significant influence on the extraction yield. The obtained results for the sweet basil total extract, cadinene, and linalool best matched with the Gordillo et al. model, therefore, the solubility of total extract, linalool, and cadinene in supercritical CO₂ at investigated temperatures is described as a function of pressure.     

Synthesis of highly active juvenile hormone analogs,juvocimene I and II,from the oil of sweet basil,Ocimum basilicum L.

Juvocimene I and II are potent juvenile hormone mimics isolated from the essential oil of sweet basil,Ocimum basilicum L. The structures given by the formula I and II have been confirmed by synthesis withtrans--ocimene andp-methoxycinnamyl chloride. Biological activity of the natural and synthetic juvocimenes was found to be identical.     

Cyclodextrin-Complexed Ocimum basilicum Leaves Essential Oil Increases Fos Protein Expression in the Central Nervous System and Produce an Antihyperalgesic Effect in Animal Models for Fibromyalgia

O. basilicum leaves produce essential oils (LEO) rich in monoterpenes. The short half-life and water insolubility are limitations for LEO medical uses. β-Cyclodextrin (β-CD) has been employed to improve the pharmacological properties of LEO. We assessed the antihyperalgesic profile of LEO, isolated or complexed in β-CD (LEO/β-CD), on an animal model for fibromyalgia. Behavioral tests: mice were treated every day with either LEO/β-CD (25, 50 or 100 mg/kg, p.o.), LEO (25 mg/kg, p.o.), tramadol (TRM 4 mg/kg, i.p.) or vehicle (saline), and 60 min after treatment behavioral parameters were assessed. Therefore, mice were evaluated for mechanical hyperalgesia (von Frey), motor coordination (Rota-rod) and muscle strength (Grip Strength Metter) in a mice fibromyalgia model. After 27 days, we evaluated the central nervous system (CNS) pathways involved in the effect induced by experimental drugs through immunofluorescence protocol to Fos protein. The differential scanning analysis (DSC), thermogravimetry/derivate thermogravimetry (TG/DTG) and infrared absorption spectroscopy (FTIR) curves indicated that the products prepared were able to incorporate the LEO efficiently. Oral treatment with LEO or LEO-βCD, at all doses tested, produced a significant reduction of mechanical hyperalgesia and we were able to significantly increase Fos protein expression. Together, our results provide evidence that LEO, isolated or complexed with β-CD, produces analgesic effects on chronic non-inflammatory pain as fibromyalgia.     

Green synthesis of nickel nanoparticles using Ocimum sanctum and their application in dye and pollutant adsorption

Nickel nanoparticles as an eco-friendly adsorbent was biosynthesized using Ocimum sanctum leaf extract. The phys-iochemical properties of green synthesized nickel nanoparticles (NiGs) were characterized by UV–Vis spectroscopy (UV–Vis), Fourier Transform Infrared Spectroscopy (FTIR), X-ray diffraction (XRD), Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM). NiGs were used as adsorbent for the removal of dyes such as crystal violet (CV), eosin Y (EY), orange I (OR) and anionic pol utant nitrate (NO3?), sulfate (SO42?) from aqueous solution. Adsorption capacity of NiGs was examined in batch modes at different pH, contact time, NiG dosage, initial dye and pol utant concentration. The adsorption process was pH dependent and the adsorption capacity increased with increase in contact time and with that of NiG dosage, whereas the adsorption capacity decreased at higher con-centrations of dyes and pol utants. Maximum percentage removal of dyes and pol utants were observed at 40, 20, 30, 10 and 10 mg·L?1 initial concentration of CV, EY, OR, NO3?and SO42?respectively. The maximum adsorption capacities in Langmuir isotherm were found to be 0.454, 0.615, 0.273, 0.795 and 0.645 mg·g?1 at pH 8, 3, 3, 7 and 7 for CV, EY, OR, NO3?and SO42?respectively. The higher coefficients of correlation in Langmuir isotherm sug-gested monolayer adsorption. The mean energies (E), 2.23, 3.53, 2.50, 5.00 and 3.16 kJ·mol?1 for CV, EY, OR, NO3?and SO42?respectively, calculated from the Dubinin–Radushkevich isotherm showed physical adsorption of adsor-bate onto NiGs. Adsorption kinetics data was better fitted to pseudo-second-order kinetics with R2 N 0.870 for al dyes and pol utants. NiGs were found to be an effective adsorbent for the removal of dyes and pol utants from aque-ous solution and can be applied to treat textile and tannery effluents.     

黄鼠树引种及栽培试验

报道了引进的能源植物黄鼠树的形态特征、生物学特性以及在引种地的适应性.从试验地的生长情况看,播种时间以10月上中旬为宜,充分成熟后,收获时间为次年7月上旬.4月份为叶片和高生长最快期.试验结果表明,黄鼠树是一个值得推荐的能源植物.     

Effect of Homogenization Pressure and Oil Load on the Emulsion Properties and the Oil Retention of Microencapsulated Basil Essential Oil (Ocimum basilicum L.)

The objective of this work was to evaluate the influence of oil concentration and homogenization pressure on the emulsion and particle properties during the microencapsulation of basil essential oil by spray drying, using gum arabic as the wall material. Experiments were planned according a 2² rotational central composite design. The independent variables were oil concentration with respect to total solids (10–25%) and homogenization pressure (0–100 MPa). Emulsions were analyzed for droplet mean diameter, stability, and viscosity, and particles were analyzed for oil retention, moisture content, particle size, and morphology. Emulsion viscosity was not affected by any of the independent variables. The increase in the homogenization pressure from 0 to 100 MPa resulted in smaller emulsion droplet size (down to 0.40 µm) and, consequently, higher oil retention (up to 95%). On the other hand, higher oil loads (25%) resulted in poorer oil retention (51.22%). Microencapsulation of basil essential oil using gum arabic as the wall material proved to be a suitable process to obtain powdered basil essential oil, presenting great oil retention with the use of lower oil concentration and higher homogenization pressure.     

三种芳香植物的抗氧化性研究

本研究为了验证罗勒 (OcimunbasilicumLine) ,鼠尾草 (SalviaofficinalisL .) ,百里香 (ThymusvulgarisLine)等草本芳香植物的叶中是否含有抗氧化物质 ,选用猪油作为氧化材料进行了抗氧化实验分析。同时为了进一步证明植物体中抗氧化物质的存在形式 ,分别采用植物的干燥叶片和从植物中提取的精油进行抗氧化处理。最后对三种植物抗氧化性的强弱作对比分析。其结果为 :三种植物都具有抗氧化性 ,其中干燥叶片的抗氧化性比精油更强 ,证明更多的抗氧化物质存在于除精油成分以外的非挥发性物质中。三种植物抗氧化性强弱顺序为 :百里香 ,鼠尾草 ,罗勒     

环境科学与工程类应用型人才培养模式研究

社会的发展进步的同时,环境问题日趋突显,然而传统的理论型环境类人才已经不能适应社会的要求。本文对环境科学与工程类应用型人才培养模式进行了探讨,在指出社会发展进步与应用型人才缺乏之间的矛盾的同时,进一步提出了环境类应用型人才培养的对策。     

中性清洗剂研发及应用

本文主要对难溶垢及其中性清洗做了简介、对研发的中性清洗剂技术要点做了说明，并对中性清洗的重要性做了阐述。