超临界CO2萃取植物天然香料的研究进展

超临界CO2萃取技术是一种新兴的分离技术,它具有萃取效率高、分离工艺简单、不需要溶剂回收设备、工作条件温和、无毒、无残留等特点,在天然香料领域的应用越来越广泛。从植物根茎叶芳香成分、水果芳香成分和鲜花芳香成分三个方面对超临界CO2萃取技术在天然植物香料提取方面的最新应用研究进行了总结,并对超临界流体萃取在天然香料领域的发展前景作了展望。     

天然香料提取分离技术研究进展

简单介绍了我国天然香料分布情况及其应用领域。综述了高速逆流色谱分离（HSCCC）、超声萃取、超临界二氧化碳、生物催化、分子蒸馏、树脂吸附等技术应用于天然香料提取分离的原理、特点以及在天然香料提取方面的应用。最后对天然香料的提取技术进行展望并提出今后天然香料的发展趋势。     

超临界CO2萃取技术在天然香料工业中的应用与研究进展

分析了我国天然香料工业发展的形势及其应用新技术的必要性 ,论述了超临界CO2 萃取技术在天然香料开发中应用的现状及优越性 ,提出了应用超临界CO2 萃取技术进行天然香料开发的对策。     

植物性天然香料提取新技术研究进展

近年来,消费者、生产商以及科研工作者越来越关注植物性天然香料以及相关产品.随着化工分离技术研究的不断深入,植物性天然香料的提取也得到了进一步发展,出现了很多新的提取技术和方法.本文介绍了一些植物性天然香料的提取技术,如超临界CO2萃取、微波萃取、分子蒸馏、超声波萃取等技术,并对这些技术的优缺点进行了分析,同时展望了植物性天然香料提取技术的发展前景.     

天然香料的提取分离技术

本文综述了目前传统的天然香料的提取分离技术，如水蒸气蒸馏法、浸提法、压榨法、吸收法、结晶法；新兴的提取分离技术，如分子蒸馏、超临界CO2萃取、微波辅助萃取、加速溶剂萃取、超声提取、色谱法、膜分离、毛细管电泳法和旋转带精馏，以及这些方法的特点与应用前景。     

天然香料植物的超临界CO2萃取及应用问题

本文结合我国天然香料植物资源的利用情况及超临界流体技术在天然香料植物提取方面的应用和存在的问题进行讨论。提出为加快我国天然香料资源的利用 ,发展边远地区的经济和香料经济作物的种植 ,应充分发挥联合的优势 ,应用新技术 ,开发新产品 ,提高资源的利用率和经济效益     

超临界CO2流体萃取在天然香料中的应用进展

对天然产品的需求导致了人们对超临界ＣＯ２流体萃取取的极大兴趣，本文综述了超临界ＣＯ２流体萃取在天然香料中的研究和应用进展并讨论了它与传统分离方法相比时的优点。     

天然香料提取技术的发展

本文结合实际经验，就水蒸汽蒸馏、萃取、分子蒸馏、吸附及其它天然香料提取技术进行了论述。     

海外瞭望

威尔德香料完成对A.M.Todd部分业务的收购 威尔德香料公司（Wild Flavors GmbH）日前宣布,已完成对A.M.Todd Ingredients and Flavors公司部分资产的收购。在这项交易中,包括了A.M.Todd的天然薄荷业务,以及其在有机食用香精、天然原料和植物萃取物的开发和生产方面的工艺技术。     

可持续利用植物资源在香料合成中的应用

从可持续利用植物资源中获取的植物性天然香料是非常受消费者欢迎的一类香料,但其资源数量有限,生产成本越来越高,难以满足人们对香料不断增长的量的需求。以从可持续利用植物资源中获得的单一化学成分为原料,可以合成数以千计的合成香料,从这种途径制备的香料与以石化产品为原料制备的香料相比,在消费心理上更能够被消费者接受,满足了人们对香料来源越来越高的要求。从资源综合利用和环境保护方面考虑,源于可持续利用植物资源的合成香料符合可持续发展战略,应该优先发展埘在香料合成中有重要应用的部分植物资源及其所合成的香料。     

Bioactive compounds and advanced processing technology: Phaleria macrocarpa (sheff.) Boerl,a review

Recent technological advances and the development of new methods has provided an opportunity to obtain highly purified natural bioactive compound extracts with potential for the treatment and prevention of human diseases. The use of hazardous and toxic solvents for the extraction and processing of bioactive compounds from plant materials is considered a problem for health, safety and environmental pollution. Advanced technology aims to increase production of the desired compounds and find an alternative to using toxic solvents in the extraction of bioactive compounds from plant materials. The ever growing interest in plant bioactive compounds and today's concerns about environment issues have led to an increased need for an efficient and green extraction method. This review is focused on the extraction of bioactive compounds from plants using advanced and environment‐friendly methods such as supercritical fluid extraction, microwave‐assisted extraction, ultrasound‐assisted extraction and similar techniques that can extract rapidly and free from organic residues. An updated overview of the bioactive compounds present in the plant Phaleria macrocarpa and its extraction, fractionation, purification and isolation is provided. The advantages and disadvantages of both conventional and non‐conventional extraction methods are also discussed in this review. © 2014 Society of Chemical Industry     

天然香料的提取分离技术

文章综述了目前传统的天然香料的提取分离技术，如水蒸气蒸馏法、浸提法、压榨法、吸收法、结晶法；新兴的提取分离技术，如分子蒸馏、超临界CO2苹取、微波辅助苹取、加速溶剂苹取、超声提取、色谱法、膜分离、毛细管电泳法和旋转带精馏，以及这些方法的特点与应用前景。     

A Review on Extraction Techniques and Its Future Applications in Industry

Extraction is a mandatory process for most of the industries, especially in the food processing industry to obtain the targeted compounds from various sources such as plant or seed samples. This review paper provides information about various extraction techniques that are normally used in the edible oil extraction industry. Five extraction techniques are presented in this paper. Among all the techniques presented in this paper, pressing and solvent extraction methods are considered as traditional techniques while supercritical fluid extraction, microwave assisted extraction, and ultrasound assisted extractions are considered as advanced techniques. Both advantages and disadvantages of supercritical fluid extraction, microwave assisted and ultrasound assisted extractions are discussed. Furthermore, the parameters that would affect the output of each technique are included in each section. Nowadays, research is going on to further enhance the extraction method to obtain a higher extraction yield or increase the quality of the extraction product. The enhancement can be either combining two or more extraction techniques into one complete process or modifying the available technique alone. Therefore, the theoretical knowledge provided in this review will be useful for future researchers who are interested in enhancing the extraction techniques. Practical Applications : Extraction is a mandatory process in edible oil extraction industry. Extraction industry is always looking for a process which is high efficiency and low extraction cost. Therefore, various advanced techniques or treatments are applied to optimize the oil yield and shorten the extraction time. This paper provides a review on various techniques by summarizing both advantages and disadvantages of each technique. The information can be very useful for improving the current extraction technique to further optimize the oil yield or enhance the quality of oil.     

Extraction of glycyrrhizic acid from licorice root using ultrasound: Process intensification studies

This work deals with the intensification of extraction process of glycyrrhizic acid (GA) from licorice using ultrasound. Various process parameters such as extraction time, solvent to solute ratio, extraction temperature and ultrasound frequency which affect the extraction yield are optimized. The maximum yield of 36.4 mg of GA/g of licorice is obtained at optimized parameters of 10 min time, 30:1 solvent to solute ratio, 40 °C temperature and 25 kHz frequency. The yield obtained with ultrasound assisted extraction (UAE) is compared with that of Soxhlet and batch extraction of GA. It is observed that the ultrasound assisted extraction not only gives higher yield but also reduces the extraction time as compared to conventional method. Temperature has no effect on ultrasound assisted extraction while higher frequency of ultrasound gives slightly better extraction yield. Further the kinetics of this extraction process is also investigated based on the second order rate equation available in the literature. Extraction rate constant, initial extraction rate and equilibrium concentration for different solvent to solute ratio and temperatures are predicted. Model validation is done successfully by plotting experimental and predicted values of concentration of GA in extract.     

绵茵陈中绿原酸的提取方法研究进展

绵茵陈为菊科植物滨蒿或茵陈蒿的干燥地上部分,绿原酸含量高,可作为提取绿原酸的重要原料.文章介绍了绿原酸的结构、理化性质和生物活性,并对绵茵陈中绿原酸的溶剂提取法和超声波辅助提取法等提取方法进行了综述,以期为绵茵陈的开发利用提供参考.     

蚕沙叶绿素废液中卷烟香料的提取及应用

为充分利用蚕沙叶绿素废液,并寻找一种新的天然卷烟香料的制备方法,采用同时蒸馏萃取法从提取叶绿素后的蚕沙废液中提取卷烟香料,并对提取得到的香料进行了挥发性成分分析和卷烟加香试验。结果表明,蚕沙叶绿素废液提取物中共鉴定出22种成分,主要为酮类和萜烯类等重要的烟草香味物质;蚕沙叶绿素废液提取物对提高卷烟香气质、增加烟气甜润度和回甜生津感、柔和烟气、减少杂气、改善余味有明显效果。蚕沙叶绿素废液提取物可作为一种新型天然香料用于卷烟加香。     

正交试验优选半枝莲总黄酮提取工艺研究

通过L16(45)正交试验优选超声辅助半仿生提取半枝莲总黄酮工艺条件。结果显示,芦丁标准品浓度在0.01~0.05 mg/mL范围内与吸光度呈良好线性关系(r=0.9993);最佳提取条件:超声功率80 W、时间35 min、料液质量比1∶35、温度60℃、乙醇体积分数80%,此条件下总黄酮平均提取率最高,为3.01%。经验证结果可靠,采用超声辅助半仿生提取方法简单、安全、快速。     

Comparison of Extraction Methods for Recovery of Astaxanthin from Haematococcus pluvialis

Solvent extraction, ultrasound assisted extraction (UAE), and microwave assisted extraction (MAE) were examined for the extraction of astaxanthin from Haematococcus pluvialis. In all cases, acetone was found to give the highest astaxanthin recovery compared with other selected solvents, i.e., methanol, ethanol, and acetonitrile. Among the various methods, MAE at 75°C for 5 min resulted in the highest astaxanthin recovery (74 ± 4%).     

开放式超声微波协同萃取测定PVC塑料中邻苯二甲酸酯类增塑剂研究

概述了邻苯二甲酸酯类(PAEs)作为聚氯乙烯(PVC)增塑剂的应用、危害,说明了PAEs的理化性质,详细归纳了超声波、微波、超声.微波协同萃取技术的应用及PAEs分析测定方法.通过优化超声波、开放式微波和超声.微波等方式萃取PVC塑料样品中的PAEs的萃取条件,比较了3种不同萃取方式的萃取效率.结果表明,超声.微波协同萃取是比较理想的萃取方式.利用该方法对2种实际塑料样品中PAEs的萃取和分析,成功地定量测定了PVC塑料样品中DEHP、DINP和DBP等邻苯二甲酸酯类增塑剂的含量.该法可用于塑料制品中各类邻苯二甲酸酯类增塑剂的快速萃取和分析.