Synthesis of Hydroxytyrosyl Alkyl Ethers from Olive Oil WasteWaters [PDF]
The preparation of a new type of derivatives of the naturally occurring antioxidant hydroxytyrosol is reported. Hydroxytyrosyl alkyl ethers were obtained in high yield by a three-step procedure starting from hydroxytyrosol isolated from olive oil waste ...
Andrés Madrona, Gema Pereira-Caro, Raquel Mateos, Guillermo Rodríguez, Mariana
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Study of degumming process and evaluation of oxidative stability of methyl and ethyl biodiesel of Jatropha curcas L. oil from three different Brazilian states. [PDF]
This work describes the production of biodiesel from Jatropha curcas oil. The kernel samples provided by Embrapa-PI, were first crushed in a blender and then subjected to extraction with ...
ARAUJO, E. C. E. +5 more
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Antioxidants based on fatty acids
Autoxidation is the cause for deterioration of organic materials. Many commercial products react with atmospheric oxygen under loss of quality. To retard unwanted oxidative damage and to prolong the useful life of the substrates, antioxidants are used to
Kalk Christian, Schaefer Hans J.
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Fatty acid and phenolic compound concentrations in eight different monovarietal virgin olive oils from Extremadura and the relationship with oxidative stability [PDF]
Olive oils have been shown to be more resistant to oxidation than other vegetable fats, mainly due to their fatty acid (FA) profile which is rich in oleic acid and to their high content of antioxidants, principally phenols and tocopherols.
Espinosa Borreguero, Francisco +4 more
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Experimental investigation on the suitability of Karanja (Pongamia pinatta) biodiesel blends for engine application [PDF]
It is now an established fact that bio-energy has the potential to augment a major part of the projected renewable energy provisions of the future. As the resources of petroleum are depleting with the increasing demand for fuels, bio-energy has come up ...
Baruah, Debendra Chandra +3 more
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Antioxidant properties of hydroxycinnamic acids: a review of structure- activity relationships [PDF]
Hydroxycinnamic acids (HCAs) are important phytochemicals possessing significant biological properties. Several investigators have studied in vitro antioxidant activity of HCAs in detail.
Borges, Fernanda +4 more
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Determination of Sterol and Fatty Acid Compositions, Oxidative Stability, and Nutritional Value of Six Walnut (Juglans regia L.) Cultivars Grown in Portugal [PDF]
Six cultivars (Franquette, Marbot, Mayette, Mellanaise, Lara, and Parisienne) of walnuts (Juglans regia L.) were collected during the 2001 crop, from Bragança, Portugal.
Amaral, Joana S. +4 more
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Antioxidative and antimicrobial effects of some natural extracts in lard
The extracts from 17 ready available plants were prepared by 95% ethanol extraction in Soxhlet extractor. The crude extracts were examined for their antioxidation properties using the automatized swift test (Rancimat) and lard as a substrate.
S. Sekretár +4 more
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Variability of olive oil cultivar on stability during storage [PDF]
The fatty acid composition and stability of three Portuguese monovarietal olive oils, Cobrancosa, Macanilha and Verdeal, was studied, maintaining the olive oils at 60 degrees C for 75 and 102 days, respectively. Oleic acid was the main fatty acid (64-69%)
Barroso, J. G. +6 more
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Antioxidant Effects of Glechoma hederacea as a Food Additive
The antioxidant properties of Glechoma hederacea L. (Lamiaceae), of Serbian origin, were studied in respect to its potential use in foodstuffs. Ethanol-water (8:2, v/v) and purified ethyl acetate extracts of the plant were found to possess significant ...
Mirjana Milovanovic +2 more
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