COMPARATIVE STUDY FOR SUNFLOWER OILS EXTRACTION BY SOXHLET AND MECHANICAL PRESS METHODS
| Autor: | P. S. Agachi, Dorina Bratfalean, Maria V. Morar, D. F. Irimie |
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| Rok vydání: | 1970 |
| Předmět: | |
| Zdroj: | Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture. 62 |
| ISSN: | 1843-5386 1843-5246 |
| DOI: | 10.15835/buasvmcn-agr:1673 |
| Popis: | Sunflower ( Heliantus annuus L.) is a widely found oilseed species of oleaginou s grown in Romania. Sunflower seed is considered to be an i mportant oilseed source crop due it’s highly nutrition oil composition. A large quantity sunflower seeds are source of raw materials required for industrial purposes in human and anima l food and nonfood application. The aim of our research work has been the study of oil extraction using two type extraction method. Oil extraction from sunflower se ed usually involves 2 consecutive procedures. In the 1st, a mechanical treatment is a pplied. Most of the sunflower oil (press oil: PO) is realized in this step [1]. The 2 nd extraction type, is subjected to the action of solv ent, usually petroleum ether the rest of the oil (solven t oil: SO). In this study, we propose the comparative researche s between two method of lipids extraction by PO and SO. These methods were investigated on 14 Romanian genotypes of sunflowers seeds. First procedure consists in mecha nical press of 300g seeds regarding efficient power of PO-extraction. The second proced ure of research was the conventional extraction, using International Organization for St andardization (ISO) [2]. Soxhlet method (SO-extraction) involves the gravimetric determinat ion of the oil from the petroleum extract from oilseeds [3] The petroleum extract is called “ oil content”. Thus, 10 grams of sample were weighed and placed in a cellulose extraction c artridge. The cartridge was plugged with cotton wool and then placed in the Soxhlet extracto r containing 100 ml of petroleum ether. After each extraction step, the solvent was these e xperiments removed in a rotary-evaporator for employable in another experiment. The results obtained have led to the following conc lusion: a large variability of oils quantity was detected in this study. Sunflower geno types seed can be classified taking into account oils quantity. Between PO and SO methods extraction can be observed a large difference relating to the oils contends. |
| Databáze: | OpenAIRE |
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