Concentration of native etheric oil aroma components by pervaporation
作者： Matthias Mauz , Klaus Kimmerle , Dieter F. Hülser
DOI: 10.1016/0376-7388(96)00074-9
关键词:
摘要: Abstract Native etheric oil extracts were concentrated by dealcoholisation of 50 vol% alcoholic chamomile extracts. Selective alcohol reduction pervaporation through hydrophobic polydimethylsiloxane (PDMS) layered membranes resulted in retentates with ethanol contents down to 0.4 vol%. Chamomile separated and enriched on the feed side without permeation membranes. Semicontinuous showed comparison vacuum distillation or reverse osmosis a virtually complete recovery components hydrophilic flavanoids. Quantitative GC HPLC analysis confirmed reproducible standard all concentration factor β 2:1 ( c retentate: feed). Fugacity thermolability required permeate deep freeze condensation below 10 mbar.
elsevier.com
sci-hub.se 参考文章(4)
G. Bengtson, K. W. Böddeker, H. -P. Hanssen, I. Urbasch, Recovery of 6-pentyl-alpha-pyrone from Trichoderma viride culture medium by perevaporation Biotechnology Techniques. ,vol. 6, pp. 23- 26 ,(1992) , 10.1007/BF02438682
M. H. V. Mulder, C. A. Smolders, Mass Transport Phenomena in Pervaporation Processes Separation Science and Technology. ,vol. 26, pp. 85- 95 ,(1991) , 10.1080/01496399108050458
W. Gudernatsch, K. Kimmerle, N. Stroh, H. Chmiel, Recovery and concentration of high vapour pressure bioproducts by means of controlled membrane separation Journal of Membrane Science. ,vol. 36, pp. 331- 342 ,(1988) , 10.1016/0376-7388(88)80026-7
E. Bengtsson, B. Hallström, G. Trägårdh, Concentration of apple juice aroma from evaporator condensate using pervaporation Lebensmittel-Wissenschaft & Technologie. ,vol. 25, pp. 29- 34 ,(1992)