Results 101 to 110 of about 2,855 (198)

Synthesis of Hydroxytyrosyl Alkyl Ethers from Olive Oil WasteWaters [PDF]

open access: yes, 2009
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
core   +2 more sources

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]

open access: yes, 2014
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
core   +1 more source

Antioxidants based on fatty acids

open access: yesOléagineux, Corps gras, Lipides, 2001
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.
doaj   +1 more source

Fatty acid and phenolic compound concentrations in eight different monovarietal virgin olive oils from Extremadura and the relationship with oxidative stability [PDF]

open access: yes, 2016
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
core   +2 more sources

Experimental investigation on the suitability of Karanja (Pongamia pinatta) biodiesel blends for engine application [PDF]

open access: yes, 2018
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
core   +2 more sources

Antioxidant properties of hydroxycinnamic acids: a review of structure- activity relationships [PDF]

open access: yes, 2013
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
core   +1 more source

Determination of Sterol and Fatty Acid Compositions, Oxidative Stability, and Nutritional Value of Six Walnut (Juglans regia L.) Cultivars Grown in Portugal [PDF]

open access: yes, 2003
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
core   +1 more source

Antioxidative and antimicrobial effects of some natural extracts in lard

open access: yesCzech Journal of Food Sciences, 2004
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
doaj   +1 more source

Variability of olive oil cultivar on stability during storage [PDF]

open access: yes, 2011
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
core   +1 more source

Antioxidant Effects of Glechoma hederacea as a Food Additive

open access: yesNatural Product Communications, 2010
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
doaj   +1 more source

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