PRINT ISSN 2285-5653, CD-ROM ISSN 2285-5661, ONLINE ISSN 2286-1580, ISSN-L 2285-5653


Published in Scientific Papers. Series B, Horticulture, Vol. LXIV, Issue 1
Written by Carmen CONSTANTIN, Loubna HADHOUM, Mihaela ZUGRAVU, Muguraș CONSTANTIN, Aurora DOBRIN, Maria PARASCHIV, Liliana BĂDULESCU

The present study is part of a comprehensive study dedicated to the cultivation of halophytes species on salt affected soils, aiming on new value chains development from obtained biomass. The work is conducted on the monitoring the degree of soil purification, the biomass production and seeds yield, and their chemical composition. In this context, the paper contains information related to the oil content of Portulaca sativa sp. seeds, in order to produce 2nd generation biofuels. Extraction of oil from seeds via traditional method (Soxhlet method) and accelerated solvent extraction (ASE) were carried out. ASE method was applied because requires small quantities of solvent, sample and operating time. ASE appear to be the most suitable method and the optimal conditions were: pressure - 10.34 MPa, temperature - 105ºC, residence time - 10 min, solvent - petroleum ether, extraction ratio of 1:40, dynamic extraction time - 30 min, and 0.3 g diatomaceous earth. The highest oil recovery achieved was 33.4%.

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