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首页> 外文会议>International Symposium on Supercritical Fluids Tome 1: Natural Products, Process amp; Equipment Development; 20030428-20030430; Versailles; FR >EXTRACTING LYCOPENE FROM TOMATO POWDERS BY SUPERCRITICAL PROPANE AND CARBON DIOXIDE WITH INDUSTRIAL SCALE PILOT
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EXTRACTING LYCOPENE FROM TOMATO POWDERS BY SUPERCRITICAL PROPANE AND CARBON DIOXIDE WITH INDUSTRIAL SCALE PILOT

机译：超临界丙烷和二氧化碳与工业规模试点从番茄粉中提取番茄红素

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摘要

A series of experiments were carried out to develop a method to extract lycopene from tomato powders by supercritical fluids CO_2 and propane. At first the operating conditions for CO_2 and propane were searched respectively in a laboratory instrument with 2L capacity extractor and one with 1L extractor. The influence of temperature, pressure, flowrate and powder size on the yields of oleoresin and lycopene recovery rate was studied. It was found both CO_2 and propane can effectively extract lycopene from tomato powders, but very high operating pressure are needed to get high enough lycopene recovery by CO_2. A pilot with 3*50L was then used to confirm CO_2 result, while a 3*300L pilot was applied to verify data for propane extraction. It was shown that laboratory results can be reproducible and lycopene could be recovered to 90% at optimized conditions. When different feeds were tested, lycopene content in extracts are found proportional to its content in feed but yields of lycopene resin does not vary much. The results show that extracting lycopene from tomato powders by supercritical propane under mild conditions may be a promising process.
机译：进行了一系列实验以开发一种利用超临界流体CO_2和丙烷从番茄粉中提取番茄红素的方法。首先，分别在配备2L容量萃取器和1L萃取器的实验室仪器中搜索CO_2和丙烷的操作条件。研究了温度，压力，流量和粉体尺寸对油树脂产量和番茄红素回收率的影响。已经发现CO_2和丙烷都可以有效地从番茄粉中提取番茄红素，但是需要很高的工作压力才能通过CO_2获得足够高的番茄红素回收率。然后使用3×50L的中试仪确认CO_2结果，同时使用3×300L的中试仪验证丙烷提取数据。结果表明，实验室结果是可重复的，在最佳条件下番茄红素的回收率可达到90％。当测试不同的饲料时，发现提取物中番茄红素的含量与饲料中番茄红素的含量成比例，但是番茄红素树脂的收率变化不大。结果表明，在温和条件下用超临界丙烷从番茄粉中提取番茄红素可能是一个有前途的过程。

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