SUPERCRITICAL-FLUID CO2 EXTRACTION ACCELERATES ISOLATION OF HUMIC-ACID FROM LIVE PILAYELLA-LITTORALIS (PHAEOPHYTA)

Authors
RADWAN A WILLEY RJ DAVIES G FATAFTAH A GHABBOUR EA JANSEN SA
Citation
A. Radwan et al., SUPERCRITICAL-FLUID CO2 EXTRACTION ACCELERATES ISOLATION OF HUMIC-ACID FROM LIVE PILAYELLA-LITTORALIS (PHAEOPHYTA), Journal of applied phycology, 8(6), 1996, pp. 545-551
Citations number
20
Categorie Soggetti
Biothechnology & Applied Migrobiology","Marine & Freshwater Biology
Journal title
Journal of applied phycology → ACNP
ISSN journal
09218971
Volume
8
Issue
6
Year of publication
1996
Pages
545 - 551
Database
ISI
SICI code
0921-8971(1996)8:6<545:SCEAIO>2.0.ZU;2-N
Abstract
Supercritical fluid CO2 extraction of the live, dried alga Pilayella l ittoralis efficiently removes non-humic substances in hours instead of the days required for sequential extraction with ether, acetone, etha nol and dioxane. Completion of extraction (including aqueous removal o f alginic acids) with either preliminary in a standard procedure gives humic acid samples with closely comparable properties.