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Position: Home > Articles > Extraction Technology of Biological Humic Acid from Fermented Furfural Residue Journal of Anhui Agricultural Sciences 2016,44 (21) 86-87+112

发酵糠醛渣中生化腐植酸的提取工艺

作者：

张院萍;崔刚;张国兰;豆亚妮

单位：

宁夏共享生物化工有限公司

关键词：

生化腐植酸;碱提酸析法;正交实验;发酵糠醛渣

摘要：

[目的]考察发酵糠醛渣中生化腐植酸的最佳工艺条件。[方法]以发酵糠醛渣为原料,采用碱提酸析法提取生化腐植酸(BHA)。通过4因素4水平正交试验,考察固液比(发酵糠醛渣与水的质量比)、碱液浓度、提取温度、提取时间对生化腐植酸提取率的影响,再利用盐酸调节提取液的p H,使生化腐植酸沉淀析出,固液分离烘干后得到成品生化腐植酸。[结果]最佳的腐植酸提取工艺条件为碱提步骤固液比1∶8,碱液浓度8%,提取时间为2.5 h,提取温度为70℃,酸析步骤p H为2.5。得到腐植酸含量为76%的固体生化腐植酸成品,其提取率为49%。[结论]该研究可为糠醛渣废弃物的开发提供科学依据。

译名：

Extraction Technology of Biological Humic Acid from Fermented Furfural Residue

作者：

ZHANG Yuan-ping;CUI Gang;ZHANG Guo-lan;Ningxia Kocel Biochemistry Co.,Ltd.;

关键词：

Biochemical humic acid;;Alkali-dissolution and acidification;;Orthogonal test;;Fermented furfural residue

摘要：

[Objective] To investigate the optimal extraction technology of biochemical humic acids( BHAs) from fermented furfural residue.[Method]With fermented furfural residue as the raw materials,BHAs was extracted by alkali-dissolution and acidification method. Four-factor and four-level orthogonal test was used to investigate the effects of solid-liquid ratio( mass ratio of fermented furfural residue to water),alkali concentration,extraction temperature and extraction time on the extraction rate of BHAs. Then,p H value of extracting solution was regulated by hydrochloric acid,in order to precipitate BHAs from its extracts. Through the solid-liquid separation and drying,solid BHAs were obtained. Results showed that the optimal extracting conditions were as follows: 1∶ 8 solid-liquid ratio,8% alkali concentration,70 ℃ extracting temperature,2. 5 h extracting time,and p H 2. 5 during alkali dissolution. Under these conditions,solid BHAs containing 76% humic acid content was obtained,and its extraction rate was 49%. [Conclusion] This research provides scientific basis for the development of fermented furfural residue.

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发酵糠醛渣中生化腐植酸的提取工艺

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