摘要:
A process for the extraction of carotenoid dyes from pre-dried natural starting materials is described using compressed gases such as propane and/or butane in which organic entraining agents can be additionally added in order to facilitate and complete the extraction process. With the aid of this process highly concentrated carotenoid dyes are obtained in high yield.
摘要:
Cholesterol and cholesterol esters are removed from egg yolk by a process whereina) optionally after the addition of an emulsion-breaking agent to the egg yolk, the egg yolk plasma is separated from the LDL-granula fraction,b) cholesterol and cholesterol esters which are contained in the egg yolk plasma are adsorbed on a solid adsorption agent andc) the solid material loaded with cholesterol and/or cholesterol esters is separated from the liquid plasma phase and optionally the egg yolk plasma and the separated granula fraction are again mixed together.
摘要:
The invention relates to a method for impregnating a support matrix with solid and/or liquid compounds using a compressed gas or a compressed mixture of gases at densities ranging from 0.15 to 1.3 kg/l and at least two unsymmetrical pressure changes (pulsations). The method is further characterized in that both a multitude of impregnating substances such as biologically active compounds, technical materials or metal-organic compounds, as well as support matrices of biological origin and organic or inorganic substances can be used that have large inner surfaces and/or inner surfaces that are difficult to access.
摘要:
The present invention relates to a method for the physical treatment of starch (derivatives) using densified gases, in which essentially the starting material is treated at process temperatures between 20 and 200° C. and at process pressures between 50 and 800° C. for at least one minute, the density of the densified gas (mixture) being >180 kg/m3. Suitable starting materials are, in particular, native plant starches, starch from genetically modified plants, or physically and/or chemically modified starches. The treatment with, in particular, densified carbon dioxide, can be carried out under defined pressure change sequences, for which, in particular, liquid aids, such as water or suitable organic solvents, can also be added. The starches thus treated have, in particular, advantages in the form of considerably reduced contents, or complete elimination, of accompanying substances, gelatinization enthalpy and gelatinization temperature, and also of the mean particle diameter and can thus be advantageously used in the food, pharmaceutical, chemistry and constructional chemistry and also agrochemical sectors, but also in other fields of application.
摘要翻译:本发明涉及使用致密化气体物理处理淀粉(衍生物)的方法,其中基本上在20-200℃的过程温度和50至800℃的过程压力下处理起始材料, 至少一分钟,致密气体(混合物)的密度> 180kg / m 3。 合适的起始材料尤其是天然植物淀粉,来自转基因植物的淀粉,或物理和/或化学改性的淀粉。 特别是致密二氧化碳的处理可以在限定的压力变化顺序下进行,特别是也可以加入液体助剂如水或合适的有机溶剂。 如此处理的淀粉尤其具有以下形式的优点:显着降低了所含物质的含量,或完全消除了附着物质,凝胶化焓和凝胶化温度以及平均粒径,因此可有利地用于食品,药物 ,化学和建筑化学以及农业化学部门,也在其他应用领域。
摘要:
The invention relates to a method for the selective isolation of valuable substances with the aid of compressed C2 to C4 hydrocarbons, such as for example ethane, propane, and/or butane, according to which a starting material is used, which contains the valuable substances in an absorbed and/or adsorbed form. Activated carbon, alumina, silicic acids, zeoliths or polysaccharides, which are charged accordingly with the valuable materials, are used as the starting materials for said method, which is carried out preferably in a continuous operation at temperatures of
摘要:
The invention concerns a method for stably flavouring drinks by means of solid, solvent-inert, particulate carrier materials loaded with flavouring agents having a large specific surface in which inorganic silicon, aluminium and/or carbon-containing compounds from the group comprising silicates, aluminium oxides and activated carbons, which optionally contain portions of water, are used as carrier materials. Silica gels, kieselguhr, activated and/or calcined clays, γ-Al2O3 and alumina oxide xerogels are particularly suitable as carrier materials which should have a specific surface between 0.1 and 1000 m2/g and a particle size of ≧10 μm. Suitable pore sizes of the carrier materials are those between 0.3 and 5000 nm. Suitable flavouring agents are essential oils, citrus oils, fruit essences and flavour extracts, for the loading of which the carrier materials are introduced into liquids containing flavouring agents or are sprayed with these. The method can in particular be used to stably flavour hot drinks for long periods.
摘要:
The invention relates to a method for obtaining fruit wax from plant constituents, said method being carried out essentially using compressed C2-C4 hydrocarbons. Unlike previous extraction methods with supercritical CO2, the inventive method can be carried out at low pressures and with a reduced extraction means throughput. Residues from the fruit treatment, especially peel from the juicing process, are used as starting materials. Preferred extraction agents are ethane, propane, butane and the mixtures thereof, the extraction itself being carried out in batches at pressures of
摘要:
The invention relates to a method for obtaining natural oils from plant constituents, said method being essentially carried out using compressed C2-C4 hydrocarbons. Residues from the crop and fruit treatment, especially from the treatment of pips and berries, are used as starting materials. Unlike previous extraction methods using organic solvents, the inventive method can be economically carried out on the basis of low pressures and reduced extraction agent throughputs. Preferred extraction agents are ethane, propane, butane and the mixtures thereof, the extraction itself being carried out in batches at pressures of
摘要:
Disclosed is a method for the selective separation of volatile flavorings from monophase, (semi)liquid starting materials having a fat content and/or oil content of =20 percent by weight, said method being preferably carried out at temperatures of =70 ° C. and at pressures of