Results 1 to 10 of about 742,507 (312)

Colorimetric detection of edible oil oxidation using PAN–Congo red nanofiber mats [PDF]

open access: yesScientific Reports
Lipid oxidation significantly compromises the safety, nutritional quality, and shelf life of edible oils, while conventional analytical methods are costly, time-consuming, and unsuitable for real-time monitoring.
Ayat F. Hashim   +4 more
doaj   +2 more sources

Multidrug and Pan-Antibiotic Resistance—The Role of Antimicrobial and Synergistic Essential Oils: A Review

open access: yesNatural Product Communications, 2020
Bacterial resistance to antibiotics continues to be a grave threat to human health. Because antibiotics are no longer a lucrative market for pharmaceutical companies, the development of new antibiotics has slowed to a crawl. The World Health Organization
Karen Boren   +2 more
doaj   +1 more source

Evaluation of the biological activity of sunflower hull extracts

open access: yesGrasas y Aceites, 2012
This work was planned with the aim of adding value to sunflower seed hulls, a waste product of the oil industry by preparing a sunflower hull phenolic extract rich in chlorogenic acid (CGA).
F. S. Taha   +3 more
doaj   +1 more source

HPLC evaluation of the minor lipid components of by-products resulting from edible oil processing

open access: yesGrasas y Aceites, 2006
An analytical evaluation of some by-products resulting from edible oil refining processing steps has been carried out. By-product samples were taken from four different local refineries that apply chemical refining technology.
Mohamed Hassan EL-Mallah   +2 more
doaj   +1 more source

Lipase - Catalyzed glycerolysis of sunflower oil to produce partial glycerides.

open access: yesGrasas y Aceites, 1998
Partial glycerides were prepared by glycerolysis of sunflower oil in presence of lipase enzyme as catalyst. Six lipases of different origins were used and compared for their catalytic activity.
F. A. Zaher   +2 more
doaj   +1 more source

Evaluation of peanut hulls as an alternative to bleaching clays

open access: yesGrasas y Aceites, 2011
Peanut hulls (PNH) were carbonized at different temperatures, times, and evaluated at different concentrations as an alternative to bleaching clays. Evaluation of bleached crude soybean oil with PNH was based on their delta free fatty acids, reduction in
M. M. M. Hassanein   +2 more
doaj   +1 more source

Propylenated fatty acids as emulsifiers

open access: yesGrasas y Aceites, 1999
Hydroxy propylenyl stéarate, palmitate, laurate, oléate and linoleate were prepared by reaction of propylene oxide with fatty acid at 160 °C for five hours stirring in presence of potassium hydroxide as a catalyst. Physico-chemical properties of the five
Y. El-Shattory   +2 more
doaj   +1 more source

Chemical characteristics and fatty acid composition on oils and fats stored in different packaging materials

open access: yesGrasas y Aceites, 1996
Bleached cottonseed oil, partially hydrogenated palm oil and margarine were stored in metal (tin) cans and white plastic (polyethylene) bottles with air in head space and served at room temperature during the whole period of investigation. The analytical
Y. El-Shattory, M. A. Saadia, F. Saeid
doaj   +1 more source

Studies on changes in lipid profiles of new varieties of rape during seed maturation

open access: yesGrasas y Aceites, 2001
Changes in lipids of three newly developed varieties of rapeseed during seed maturation were studied. Triacylglycerol molecular species, fatty acid composition, whole sterol, and four sterol lipids as well as tocopherol were determined at different ...
Safinaz M. El-Shami   +2 more
doaj   +1 more source

Antioxidant effect of an ozonized theobroma oil formulation on damaged-inflammatory rat skin

open access: yesGrasas y Aceites, 2011
The aim of this study was to determine whether a cosmetic formulation elaborated with ozonized theobroma oil may exert beneficial effects in the restoring of the antioxidant activity on the skin of rats previously irradiated with ultraviolet light. 0.5 g
Yaima Sánchez   +4 more
doaj   +1 more source

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