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首页> 外文期刊>Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies >Separation of cashew (Anacardium occidentale L.) nut shell liquid with supercritical carbon dioxide
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Separation of cashew (Anacardium occidentale L.) nut shell liquid with supercritical carbon dioxide

机译：用超临界二氧化碳分离腰果坚果壳液

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Cashew nut shell liquid (CNSL) represents the largest readily available bioresource of alkenyl phenolic compounds, In this work, separation of CNSL from the pericarp, of the cashew nut with supercritical carbon dioxide was studied. In the initial extractions with CO2 at 40-60degreesC and at pressures from 14.7 to 29.4 MPa, low yields were obtained. However, when the extractions were performed with one or more intermediate depressurization steps, the yield of CNSL increased to as high as 94%. Most of the oil did not separate from the shell during the depressurization step, but was obtained during the subsequent repressurization. The CNSL extract had a clear light brownish pink color and exhibited no evidence of polymerization or degradation. The pressure profile extraction method proposed in this work increases the possible CNSL extraction yields and greatly reduces the amount of CO2 required for CNSL separation. (C) 2002 Elsevier Science Ltd. All rights reserved. [References: 28]
机译：腰果壳液（CNSL）代表了最大的现成的烯基酚类化合物的生物资源。在这项工作中，研究了用超临界二氧化碳从腰果的果皮中分离CNSL。在40-60℃和14.7至29.4 MPa的压力下用CO2进行初次萃取时，收率低。但是，当用一个或多个中间减压步骤进行萃取时，CNSL的收率增加到高达94％。在减压步骤中，大多数油没有从壳中分离出来，而是在随后的减压中获得的。 CNSL提取物具有明显的浅褐色粉红色，并且没有聚合或降解的迹象。在这项工作中提出的压力分布图提取方法提高了可能的CNSL提取率，并大大减少了CNSL分离所需的CO2量。 （C）2002 Elsevier ScienceLtd。保留所有权利。 [参考：28]

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