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首页> 外文期刊>Biotechnology Progress >Pressurized Hot Water Extraction of Anthraquinones from the Roots of Morinda citrifolia
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Pressurized Hot Water Extraction of Anthraquinones from the Roots of Morinda citrifolia

机译：从巴戟天根中加压提取蒽醌

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This study examines pressurized hot water extraction of anthraquinones from dried roots of Morinda citrifolia(Noni).The effects of various operating conditions such as water temperature(110,170,and 220 deg C),and water flow rate(2,4,and 6 mL min~(-1)) on extraction yield and extraction rate were determined.At 220 deg C,the extraction yield was the highest and was approximately 43.6 mg g~(-1).Subcritical water extraction at 4 mL min~(-1)or higher was found to be able to recover all the antraquinones present in the roots within 3 h of extraction,even at 170 deg C.Pressure had no significant effect on the results for the range of temperatures studied.The flow rate of 6 mL min~(-1)resulted in the highest extraction rate,but the extraction efficiency,as measured by the amount of anthraquinones extracted per unit volume of water was lower than that of 4 mL min~(-1).Anthraquinones solubility in pressurized hot water was determined.The results indicate a presence of a mass transfer limitation in the extraction process from solid matrix..
机译：本研究考察了巴戟天干燥根中蒽醌的加压热水提取方法，研究了水温（110,170和220℃），水流量（2,4和6 mL）等多种操作条件的影响。在220℃时提取率最高，约为43.6 mg g〜（-1）。在4 mL min〜（-1）下进行亚临界水提取。更高的温度被发现能够在萃取的3小时内甚至在170℃下恢复根中存在的所有蒽醌。在所研究的温度范围内，压力对结果没有显着影响。流速为6 mL min〜（-1）的提取率最高，但以每单位体积的水中蒽醌提取量衡量的提取效率低于4 mL min〜（-1）。蒽醌在加压热条件下的溶解度测定水。结果表明存在传质限制从固体基质中提取的过程..

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