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|關鍵字:||陰離子交換薄膜;黃豆油脫臭蒸餾液;維生素E||出版社:||國立中興大學工學院;Airiti Press Inc.||Project:||興大工程學刊, Volume 16, Issue 1, Page(s) 51-63.||摘要:||
Different commercial anion exchange membranes were applied for the concentration of vitamin E in soybean oil deodorizer distillat (SODD). The SODD employed in this study had been pretreated using supercritical fluid extraction to remove a large amount of free fatty acid. Isopropanol was used as the solvent for adsorption stage and methanol+acetic acid (4:1, V/V) and pure methanol as the eluents in two-step elution mode. In the batch performance, the weight percentage of vitamin E in SODD products was greatly increased in all of the three cases (SB6407, DE81, and MA3475 membranes). In particular, the use of SB6407 membrane led to the best concentration result by raising the weight percentage of vitamin E from 27.2% to 57.8~69.0%, which was superior to the performance for commercial anion exchange resin Amberlite? IRA900. in the flow adsorption experiment using a membrane disc module, SB6407 membranes also resulted in the highest vitamin E percentage (39.7~41.5%); but it was not as good as the batch performance.
|Appears in Collections:||第16卷 第1期|
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