Results 71 to 80 of about 2,370 (196)
Biofuels, Bioproducts and Biorefining, Volume 19, Issue 6, Page 1765-1783, November/December 2025.Abstract Biofuels undergo oxidative degradation, which reduces their storage stability and efficiency, hindering their large‐scale adoption and integration into the global energy matrix. To address this issue, we synthesized and characterized four novel quinolinone–chalcone derivatives (substituted with Br, Cl, OCH3 and OCH2CH3) as potential ...
Vitor S. Duarte +8 more
wiley +1 more source
Estimation of Kinetic Parameters of Walnut Oil Using Rancimat Test [PDF]
, 2015 In this paper, walnut oil at four different temperatures (353, 363, 373 And 383 ̊ K) were oxidized under the rancimat test conditions, it was observed that the rate of oxidation increases with increasing temperature.
Mostafa Shahidi Noghabi +2 more
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Effectiveness of added natural antioxidants in sunflower oil
Grasas y Aceites, 2005 The antioxidant activity of α- and δ-tocopherol, citric acid, ascorbic acid and ascorbyl palmitate was investigated in sunflower oil containing naturally occurring tocopherol.
Amalia A. Carelli +2 more
doaj +1 more source
Energy Technology, Volume 13, Issue 11, November 2025.The oxidative stability of biodiesel from homogeneous and heterogeneous catalysis of castor/cottonseed oil blends is studied. Castor oil's ricinoleic acid improves oxidative stability, acting as a natural antioxidant. Yet, HT catalysis led to lower stability due to catalyst leaching.
Rômulo Batista Vieira +7 more
wiley +1 more source
Determination of kinetic parameters using Rancimat analysis
, 2017 The physicochemical quality parameters, the total phenols contents and the oxidative stabilities at 120 to 160 ºC of commercial extra-virgin olive oils were assessed, allowing to confirm the quality grade as well as to group them according to the total phenols contents as low (88±7 mg CAE/kg), medium (112±6 mg CAE/kg) and high (144±4 mg CAE/kg) phenols
openaire +2 more sources
Long-term storage of three unconventional oils
Grasas y Aceites, 2008 Three samples, Sclerocarya birrea oil (SCO), Melon bug oil (Aspongubus viduatus) (MBO), and Sorghum bug oil (Agonoscelis pubescens) (SBO), were stored (autoxidized) in the dark at 30±2 °C for 24 months.
Abdalbasit Mariod +3 more
doaj +1 more source
Food Science &Nutrition, Volume 13, Issue 11, November 2025.First‐time chemical profiling of Bongardia chrysogonum seed essential oil (BCEO). BCEO exhibited oxidative stability comparable to synthetic antioxidants. Encapsulated BCEO shows promise as a natural food preservative. ABSTRACT This study explored the phytochemical composition and antioxidant capacity of Bongardia chrysogonum seed essential oil (BCEO),
Mohamad Mehdi Nematshahi +2 more
wiley +1 more source
eFood, Volume 6, Issue 5, October 2025.The current investigation mainly focused on the improvement of oil yield and quality through conventional oven and microwave roasting. The assessment has been based on various quality traits, including bioactive components, physicochemical properties, and antioxidant activities.
Ahmed Marhri +10 more
wiley +1 more source
Evaluation of a simple and sensitive sensory method for measuring rancidity in soybean oils
Grasas y Aceites, 2006 The purpose of this study was to evaluate the efficacy of the 2 Alternative Forced Choice (2-AFC) sensory method in detecting rancidity in soybean oils. Additionally, correlations between the physico-chemical quality and the sensory attributes of edible ...
J. R. López-Aguilar +5 more
doaj +1 more source
Induction periods of walnut oil samples during the Rancimat measurement [PDF]
, 2014 Oxidative stability is an important parameter in the characterization of fats and oils. This paper presents a comparative study of walnut oil stability at different temperatures, processing and storage assessed by the method Rancimat.
GURJUI, A. +3 more
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