The effect of specific oil surface (SOS) during pan frying of rapeseed oil on its thermal stability and antioxidant capacity (AC) was evaluated. Rapeseed oils with different oil layer heights (OLH = 0.5, 1.0, 1.5, 2.0, and 2.5 cm) were heated on an electric frying pan coated with Teflon at 180 ± 10 °C until a selected end point of 25 % total polar compounds (TPC) was reached. The changes of che...

In this study, the effects of MTGase addition (0, 0.16, 0.32%), pressure weight 2.54, 5.09 gf/cm2) and setting time (4, 14, 24 h) at 4 °C on restructured European seabass (Dicentrarchus labrax) meat were systematically optimized with RSM in order to obtain a ready eat seafood product. The process was characterized by drip loss, total free amino acids hardness value. study demonstrated that, 0.3...

The aim of this study was to describe the thermal properties selected cultivars flaxseed oil by use differential scanning calorimetry (DSC) technique. crystallization and melting profiles were analyzed depending on different rates (1, 2, 5 °C/min) as well oxidative induction time (OIT) isothermally at 120 °C 140 °C, oxidation onset temperatures (Ton) 2 °C/min measured. manifested a single peak,...

The phenolic extracts of walnut cultivars with a red pellicle (HWE), purple (ZWE) and yellow (WWE) were compared. total contents phenolics, flavonoids condensed tannins, as well in vitro antioxidant activities (ABTS DPPH) the evaluated. results showed that 25 compounds identified three colored walnuts. HWE contained highest phenolics while ZWE content flavonoids. DPPH ABTS assays indicated colo...

The efficacy of different refining stages on physicochemical parameters, heavy metal, and mineral contents sesame oil were investigated. from (crude oil, neutralization, bleaching, deodorization, stages) was taken the local factory in Yazd, Iran. fatty acid composition samples determined by GC-FID. oxidation indexes including peroxide value, p-Anisidine, free acid, TOTOX, total polar material, ...

This study evaluated the potential of two dried processing by products, obtained from large and cherry tomatoes (LT CT) after juice extraction to improve oxidative stability pork sausages during refrigerated storage for 20 days. For this purpose, reformulated nitrite-free were manufactured supplementation raw sausage samples with tomato byproducts (DLTB DCTB) at a dose that provides level polyp...

In this project, different nettle plants from north regions of Iran including Tonekabon, Amol and Gorgan were collected. The oil was extracted using soxhlet extraction apparatus and was subjected to series of physical and chemical tests and determinations consisting of refractive index, melting point, smoke point, nonsaponifiable matter, Iodine value, saponification value, peroxide value, totox...

the oil extracted from three major canola cultivars (hyolla401, hyolla420 and rgs003) grown in golestan province was analyzed for physico-chemical properties, fatty acid composition, minerals content, and stability during 16 weeks of storage. according to the results, the highest iodine value and refractive index belonged to hyolla401. the highest saponification value was observed in hyolla420....

in recent years the use of toxic and carcinogenic synthetic antioxidants are recommended to get limited. therefore, the use of natural resource materials as an alternative substitution for synthetic compounds is indispensable. throughout the present study, antioxidation properties of fennel essential oil, at different concentrations containing 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7 and 0.8 mg/ml in ...