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52 results for “phenolic compounds”
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Research ArticleOpen accessIn the abstractNATURAL ANTIOXIDANT INGREDIENT FROM BY-PRODUCTS OF FRUITSG. S. El-Baroty, M. F. Khalil, S. H.A. MostafaThe contents of total phenolics compounds and their phenolic constituents were quantified in organic and aqueous of four varieties (Zebdia, Sukkari, taimor and Hindi) of mango (Mangifera indica L.), seeds pulp and kernel, one varieties of pomegranate (Punica ranatum L., peel) and peanut (Arachis hypogaea L., Giza 6, shell) by-products. The antioxidant activities of all by products extracts were assessed … …American Journal of Agricultural and Biological Sciences, Vol. 9, Issue 3 · 22 Mar 2014 · 8,170 accessesView PDFCite
Research ArticleOpen accessIn the abstractMICROWAVE-ASSISTED EXTRACTION OF PHENOLIC ANTIOXIDANTS FROM SEMIARID PLANTSJorge E. Wong-Paz, Juan C. Contreras-Esquivel, Diana Muñiz-Marquez et al.Microwave-Assisted Extraction (MAE) kinetic in three temperatures was investigated for extraction of antioxidant phenolic compounds from Jatropha dioica, Flourensia cernua, Eucalyptus camaldulensis and Turnera diffusa which are plants of semiarid regions of Mexico. The two-site kinetic model and saturation simple equation were used to describe the experimental data. The fit of the data demonstrated that saturation simple equation was better … …American Journal of Agricultural and Biological Sciences, Vol. 9, Issue 3 · 22 Mar 2014 · 7,609 accessesView PDFCite
Research ArticleOpen accessIn the abstractCHEMICAL ANALYSIS AND ANTIOXIDANT ACTIVITY OF "NERIUM OLEANDER" LEAVESLakhmili Siham, Obraim Saida, Taourirte Moha et al.The phenolic products of medicinal plants have a great pharmacological interest. This product gives the powers of medicinal plants. They are the source of several active principles widely used in modern medicine. The use of Nerium oleander in Moroccan traditional medicine is very common. Few studies have focused on the chemical analysis and phenolic compounds of this plant. For this, … …OnLine Journal of Biological Sciences, Vol. 14, Issue 1 · 13 Dec 2013 · 8,285 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparative Extraction of Pectic and Polyphenols from Mexican Lime Pomace and BagasseDaniela Sanchez-Aldana, Cristobal Noe Aguilar, Guadalupe Virginia Nevarez-Moorillon, Juan Carlos Contreras EsquivelMexican lime bagasse and pomace are rich in pectin and they also represent an important source of value-added compounds such as polyphenols. Two different options for the combined recovery of pectin and phenolic compounds from Mexican lime bagasse and pomace, two byproducts of industrial lime processing, were developed. Conventional and microwave-assisted extraction methods were used. All pectic extracts presented a … …American Journal of Agricultural and Biological Sciences, Vol. 8, Issue 4 · 29 Oct 2013 · 7,804 accessesView PDFCite
Research ArticleOpen accessIn the abstractImpact of Pre-Treatments on the Acrylamide Formation and Organoleptic Evolution of Fried Potato ChipsSamir Abdel-Monem Ahmed Ismial, Rehab Farouk Mohammed Ali, Mohsen Askar, Wafaa Mahmoud SamyThe main objective of this investigation was to study the effect of different pre-frying treatments on reduction of acrylamide formation of fried potato Moreover; the impact of different phenol compounds and leaves on acrylamide formation was evaluated. In addition, the effects of these treatments on the sensorial quality of fried potato chips were studied. Results showed that blanching process caused … …American Journal of Biochemistry and Biotechnology, Vol. 9, Issue 2 · 20 Jun 2013 · 8,357 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntioxidant and Antimutagenic Activities of Taif Grape (Vitis vinifera) CultivarsAbdelmegid Ibrahim Fahmi, Mohamed Ahmed Nagaty, Ahmed Mohamed El-ShehawiExtract of grape Vitis vinifera has been reported to exhibit antioxidant and antimutagenic activities and the phenolic compounds play a vital role in determining these activities. Therefore; the objective of the present study was to evaluate the antioxidant and anti-mutagenic activities as well as the phenolic composition of different grape cultivar extracts collected from Taif region. The grape cultivars namely; … …American Journal of Biochemistry and Biotechnology, Vol. 9, Issue 2 · 20 Jun 2013 · 8,010 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetermination of Antioxidants in Oil Palm Empty Fruit BunchesNg Mei Han, Choo Yuen MayThe oil palm Fresh Fruit Bunches (FFB) undergoes sterilization before being threshed to separate the fruits from the bunch. Upon threshing, the fruits were pressed for its oil while the now Empty Fruit Bunch (EFB) will be discarded or used as biomass. It is believed that the EFB contains small amount of oil as well as phytonutrients which contain antioxidative … …American Journal of Applied Sciences, Vol. 9, Issue 11 · 5 Sep 2012 · 7,184 accessesView PDFCite
Research ArticleOpen accessIn the abstractMulberry Fruits Protects Against Age-Related Cognitive DeclineJintanaporn Wattanathorn, Supaporn Muchimapura, Wipawee Thukhammee et al.Problem statement: The phenolic compounds and anthocyanin contents, the antioxidant and Acetylcholinesterase Inhibitor (AChI) activities of mulberry fruits were determined. Approach: Analysis of phenolic compounds and anthocyanin were performed using Folin Ciocalteu reagent and pH-differential method respectively. The antioxidant activity was determined using DPPH and FRAP assays while AChI activity was determined using Ellman method. Results: The mulberry fruit powder … …American Journal of Applied Sciences, Vol. 9, Issue 9 · 8 Aug 2012 · 7,826 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effects of Batch Reactor Extraction on Antioxidant Activity from Scurulla atropurpureaSiti Irma Rahmawati, Nobuyuki HayashiProblem statement: The main active compounds of benalu teh’s include alkaloids and flavonoids, therefore antioxidant of it has big potential to develop. In the context of extraction, the traditional (boiling in the water until one-third remain) extraction require a long extraction time and result in low yields of extraction also antioxidant activities. Approach: Batch reactor is extraction at high temperature … …American Journal of Applied Sciences, Vol. 9, Issue 3 · 17 Jan 2012 · 6,785 accessesView PDFCite
Research ArticleOpen accessIn the abstractAromatic Compound Glucopyranoside from New Species Artocarpus thailandicusWanaree Boonkla, Siripit Pitchuanchom, Puttinan Meepowpan et al.Problem statement: Many Artocarpus plants belonging to the family Moraceae are found in Thailand and have been used as Thai traditional medicines. These plants are known to produce a variety of phenolic glycoside. A. thailandicus is the new species and this prompted us to make further investigations on the occurrence of these types of compounds in the new Artocarpus species. … …American Journal of Applied Sciences, Vol. 8, Issue 11 · 23 Sep 2011 · 8,016 accessesView PDFCite