Journal ArticleDOI
Antioxidative properties of xanthan on the autoxidation of soybean oil in cyclodextrin emulsion
TLDR
In this paper, the autoxidation of soybean oil in a cyclodextrin emulsion system was studied in the presence of an emulsion stabilizer consisting of polysaccharides such as xanthan, tragacanth gum, and methylcellulose.Abstract:
The autoxidation of soybean oil in a cyclodextrin emulsion system was studied in the presence of an emulsion stabilizer consisting of polysaccharides such as xanthan, tragacanth gum, and methylcellulose. Xanthan strongly inhibited the peroxidation of soybean oil containing tocopherols but showed no antioxidant activity on soybean oil without tocopherols in the emulsion. Xanthan did not have hydrogen donating ability but expressed Fe2+-binding activity. The Fe2+-binding activity corresponded to the pyruvate content of xanthan. Depyruvated xanthan did not inhibit effectively the autoxidation of soybean oil. The Fe2+-chelating structure of xanthan is discussedread more
Citations
More filters
Journal ArticleDOI
Use of a Free Radical Method to Evaluate Antioxidant Activity
TL;DR: The antiradical properties of various antioxidants were determined using the free radical 2,2-Diphenyl-1-picrylhydrazyl (DPPH*) in its radical form as discussed by the authors.
Journal ArticleDOI
Lipid Oxidation in Oil-in-Water Emulsions: Impact of Molecular Environment on Chemical Reactions in Heterogeneous Food Systems
TL;DR: In this article, the authors reviewed the current understanding of the lipid oxidation mechanism in oil-in-water emulsions and discussed the major factors that influence the rate of lipid oxidation, such as antioxidants, chelating agents, ingredient purity, ingredient partitioning, interfacial characteristics, droplet characteristics, and ingredient interactions.
Journal ArticleDOI
Studies on the Antioxidant Activity of Pomegranate (Punica granatum) Peel and Seed Extracts Using in Vitro Models
TL;DR: This is the first report on the antioxidant properties of the extracts from pomegranate peel and seeds and can be further extended to exploit them for their possible application for the preservation of food products as well as their use as health supplements and neutraceuticals.
Journal ArticleDOI
Effect of extraction solvent on total phenol content, total flavonoid content, and antioxidant activity of Limnophila aromatica
Quy Diem Do,Artik Elisa Angkawijaya,Phuong Lan Tran-Nguyen,Lien Huong Huynh,Felycia Edi Soetaredjo,Suryadi Ismadji,Yi-Hsu Ju +6 more
TL;DR: Results indicate that L. aromatica can be used in dietary applications with a potential to reduce oxidative stress.
Journal ArticleDOI
Review: Methods Used to Evaluate the Free Radical Scavenging Activity in Foods and Biological Systems:
TL;DR: In this paper, the authors described the methods used for free radical scavenging in both substrates as well as in specific cases of their application, such as superoxide radicals scavenging (O2·-), hydrogen peroxide scavenging(H2O2), hypochlorous acid scavenging, HOCl, and hydroxyl radical scavenges (HO), among them, among them are the methods that use azo-compounds to generate peroxyl radicals.
References
More filters
Journal ArticleDOI
Oxygen toxicity, oxygen radicals, transition metals and disease
Journal ArticleDOI
Structure of the extracellular polysaccharide from xanthomonas campestris
TL;DR: Xanthan gum, the extracellular polysaccharide from Xanthomonas campestris, has been reinvestigated by methylation analysis, and by uronic acid degradation followed by oxidation and elimination of the oxidized residue.
Journal ArticleDOI
Effect of Metal Salts and Fructose on the Autoxidation of Methyl Linoleate in Emulsions
TL;DR: Effet des sels metalliques suivants: CdCl 2, CoCl 2, Cr(NO 3 ] 3, CuSO 4, FeSO 4, FeCl 3, HgCl 2 and MnSO 4 and ZnSO 4.
Journal ArticleDOI
Synthetic media for production of quality xanthan gum in 20 liter fermentors
TL;DR: In this article, the authors studied polysaccharide production on synthetic media in small-scale fermentors and established fermentation conditions for production of both high and low pyruvic acid gums.
Journal ArticleDOI
Prooxidant effect of dihydroxyacetone and reducing sugars on the autoxidation of methyl linoleate in emulsions
TL;DR: This paper showed that reducing sugar accelerated the autoxidation of methyl linoleate in an aqueous emulsion system and reduced transition metal ions in the oxidation system and that reduced metal ions can accelerate the lipid peroxidation process.