This study was performed to optimize and validate Rancimat (Metrohm Ltd., Herisau, Switzerland) operational parameters including temperature, air-flow, sample weight minimize Induction-Time (IT) IT-Coefficient-of-Variation (CV), using Response Surface Methodology (RSM). According a Box–Behnken experimental design, walnut oil equivalent 3-, 6-, or 9-g added each reaction vessel heated 100, 110, ...

This study aimed to evaluate the quality of selected oils from seeds herbs and vegetables (basil, fenugreek, coriander, tomato, garden cress, parsley, dill), especially their oxidative stability. The were tested for oxidation degree (acid value, peroxide p-anisidine TOTOX indicator, specific extinction under ultraviolet light), colours, content carotenoid chlorophyll pigments, fatty acid compos...

This works aimed at investigating shelf-life behavior of extra virgin olive oil (EVOO) extracted from two cultivars “Arbequina” and “Moroccan Picholine” as a function storage time (8 weeks) accelerated conditions (60 °C). Our outcomes revealed significant variations between EVOOs both in terms the investigated physicochemical characteristics. These were also affected by temperature except for f...

Cold-pressed camelina oil (CPCO) is exceptional seed with a unique fatty acid profile promoting health and wellness. Therefore, this work focused on estimating comparing the physicochemical properties sensory quality of eight CPCO samples available Polish market. All analyzed oils were rich in α-linolenic (ALA = 29.91–36.27%) contained low amounts saturated acids (SAFA 10.61–12.20%). Oxidative ...

The use of natural additives in biodiesel has been investigated, however, there is limited information the literature relation to their influence on corrosion resistance and oxidative stability. This work aims investigate stability carbon steel (AISI 1020) contact with soybean solutions (B100) presence absence such as: rosmarinic acid, curcumin, gingerol, eugenol, thymol quercetin. Corrosion mi...

This study was carried outto investigate the effect of ultrasound-assisted extraction (UAE) on polyphenols from olive pomace with methanol (80%) as an extracting medium and studythe effects of addingthe extract to refined sunflower oilduring accelerated oxidationconditions. Ahigh amount of polyphenols was extracted from the olive pomace with a solvent-to-solid ratio of 40 at 50% of the maximum ...

This study was carried out to study some quality indices (acid value, peroxide value and UV absorption K232nm, K270nm and ∆K) of virgin olive oil of three varieties (Coratina, Koronakii and Picual) at two stages of ripening. Also, organoleptic tests, phenolic content, αtocopherol and oxidative stability measured by Rancimat method at 100 ̊C were determined. Fatty acid composition and volatile co...

In searching for new sources of oil, protein and gelatin researchers have investigated many wild plants, but our research group took a different approach: We looked at insects as oil, protein and gelatin source for both nutritional and industrial applications. According to Sudanese indigenous knowledge, many insects have food and medicinal uses. We targeted two of these insects for our research...