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Extraction of lipophilic substances from shells and spines of green sea urchins (Strongylocentrotus droebachiensis) was studied. It was found that the extraction time had the greatest influence on the yield of lipophilic substances whereas temperature and extraction modulus had insignificant effects. Ethanol (95%) was chosen as the extractant affording the maximum amount of lipophilic substances....
Grape seeds (Vitis vinifera L.), a type of raw material containing around 20 % (w/w) of lipids and 20 % (w/w) of phenolic compounds in dry weight, are the main by-products in wine industry. In this work, water and hydroalcoholic mixtures have been first investigated to obtain the optimal solvent for further extractions. Polyphenols and lipids were then extracted by three combined extraction procedures...
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