Engleski COMPARATIVE CHARACTERISTICS OF PLUM SEED OIL OBTAINED BY SUPERCRITICAL AND SOXHLET EXTRACTION
PLUM SEED OIL OBTAINED BY SUPERCRITICAL AND SOXHLET EXTRACTION
Abstract
Introduction/Aim. Plums, as one of the oldest types of fruits, are very important in the human diet. The most common varieties of plums cultivated in the territory of Bosnia and Herzegovina are Požegača, Čačanska lepotica, Čačanska rodna and Valjevka. They belong to the group of basic fruits rich in various vitamins and minerals. The aim of the study was to find the optimal way of isolating the fatty oil with best properties and its characterization, examining its potential as raw material in the cosmetic industry. Methods. Fatty oils were extracted by conventional Soxhlet extraction with non-polar organic solvent and by supercritical extraction with carbon dioxide. The AOAC 930.15 method was used to determine the moisture content of the plum seeds. The oils were characterized by determining the organoleptic characteristics, as well as the acid, iodine, saponification and peroxide number (Ph.Eur.10.0.). Results. The most fatty oil was obtained from the pits of the Čačanka rodna plum using the both extraction methods, supercritical and Soxhlet extraction. Fatty oil of Požegača had the lowest values of iodine and peroxide number, while the acid and saponification number were the lowest within the oil from Valjevka and Čačanka rodna, respectively. Conclusion. Both extraction methods showed good extraction yields, with higher extraction capacity using Soxhlet extraction. Čačanka rodna had the highest amount of oil. Fatty oils from all varietes can be potentially used for obtaining fatty oil for cosmetic purposes due to its beneficial effect on the skin.
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