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In this work, the brown algae Macrocystis pyrifera were pretreated with dilute sulfuric acid, water and three different types of ionic liquids (ILs): 1-ethyl-3-methylimidazolium acetate ([EMIM][OAc]), 1,5-diazabicyclo[4.3.0]non-5-ene acetate ([DBNH][OAc]) and 1,8-diazabicyclo-[5.4.0]–undec-7-ene–sulfurdioxide–monoethanolamine (DBU–MEA–SO2–SIL), to disassemble the complex polysaccharide structure....
Algae as a raw material are highly important, since algae have high growth rates and are rich in lipids, proteins, and carotenoids. Direct saponification of alga with an ethanolic solution of KOH or NaOH followed by extraction was investigated and the composition of different fractions was studied by several physico-chemical methods, such as gas- and liquid chromatography, Fourier transform infrared...
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