Low-Temperature Extraction of Lipid Fractions from Vegetable Raw Materials Using Liquefied Freons

Q4 Medicine

Problems of Cryobiology and Cryomedicine Pub Date : 2023-03-30 DOI:10.15407/cryo33.01.038

Oleksandr Osetskyi, Stanislav Sevastianov, V. Yevlash, V. Potapov, Iryna Piliugina, D. Bilyi

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引用次数: 0

Abstract

This paper presents the method of cryogenic extraction by means of liquefied freons. Using the equipment to extract lipid fractions from biological raw materials, a freon extract from bay leaves (Laurus nobilis) was experimentally obtained. A low-temperature extraction of lipid fractions from bay leaves was first realized using liquefied freons within the temperature range of –2...–8°С. The difference in composition of these fractions from that of the oils, obtained within the standard temperature ranges of 30...50°С was shown. Dependence of the finished product weight on extraction time as a result of three consecutive cycles of 23 hrs each was demonstrated. Using gas chromatography, 68 components of freon extract were identified, and their quantitative composition and dominant compounds were detected. The content of essential oils and aroma-forming substances, stipulating the number of odour units was specified. These findings may be the basis for novel technological approaches to separation of lipid fractions, isolated from biological raw materials of plant and animal origin. Here, we described the device version with a three-stage cryogenic system of freon solvent recovery for effective implementation of the designed technology. Key words: bay leaf, low-temperature technologies, liquefied freon R406A, extract, gas chromatography, number of odour units.

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利用液化氟利昂低温提取蔬菜原料中的脂质组分

本文介绍了利用液化氟利昂进行低温萃取的方法。利用该设备从生物原料中提取脂质组分，实验获得了月桂叶中的氟利昂提取物。首先使用液化氟利昂在–2…–8°С的温度范围内从月桂叶中低温提取脂质组分。显示了这些组分与油组分的组成差异，这些组分是在30…50°С的标准温度范围内获得的。证明了成品重量对提取时间的依赖性，这是三个连续循环的结果，每个循环23小时。采用气相色谱法对氟里昂提取物中的68种成分进行了鉴定，并对其定量组成和主要化合物进行了检测。规定了精油和形成香气物质的含量，规定了气味单位的数量。这些发现可能是从植物和动物来源的生物原料中分离脂质组分的新技术方法的基础。在这里，我们描述了具有三级低温氟里昂溶剂回收系统的装置版本，以有效实施所设计的技术。关键词：月桂叶，低温技术，液化氟利昂R406A，提取物，气相色谱法，气味单元数。

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来源期刊

Problems of Cryobiology and Cryomedicine Medicine-Medicine (miscellaneous)

CiteScore

0.60

自引率

0.00%

发文量

期刊介绍： The Journal publishes the reviews and original papers on cryobiological and cryomedical research, in particular the elucidation of mechanisms of injuries occurring in biological objects and caused by the influence of low and ultra low temperatures; natural resistance of biologicals to cold and their recovery post effect; the development of effective methods of cryoprotection and technology of storage of biological resources under hypothermic and ultra low temperatures, application of hypothermia, cryotherapy and cryopreserved biologicals for treating various pathologies; cell and tissue based therapies and other issues of low-temperature biology and medicine, as well as development of devices and equipment for low temperature biology and medicine. The journal covers all topics related to low temperature biology, medicine and engineering. These include but are not limited to: low temperature storage of biologicals (human, animal or plant cells, tissues, and organs), including preparation for storage, thawing/warming, cell and tissue culturing etc. response of biologicals to low temperature; cold adaptation of animals and plants; utilisation of low temperature in medicine; experimental and clinical transplantation, cell and tissue based therapies; developing of cryobiological and cryomedical devices; organisation and functioning of low temperature banks etc.