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https://www.readbyqxmd.com/read/28231543/date-seed-extract-ameliorates-%C3%AE-amyloid-induced-impairments-in-hippocampus-of-male-rats
#1
Farzaneh Dehghanian, Taj Pari Kalantaripour, Khadijeh Esmaeilpour, Leila Elyasi, Hakime Oloumi, Fatmeh Mehdi Pour, Majid Asadi-Shekaari
Alzheimer's disease (AD) is the most prevalent neurodegenerative disorder among the elderly. Because the existing treatments for Alzheimer's disease only offer limited symptomatic alleviation, more efficient therapeutic agents are urgently needed. Date seed is a hepatoprotective and neuroprotective agent. Date seed extract (DSE) has bioactive components like phenolics, flavonoids, and vitamins. In view of the ameliorative effects of DSE against an oxidative injury, the current study was designed to reveal whether DSE has a neuroprotective resource in the rat model of Alzheimer's disease...
February 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28231438/lipid-and-protein-antioxidant-capacity-of-dried-agaricus-bisporus-in-salted-cooked-ground-beef
#2
Hatouf Alnoumani, Zeynep Akyol Ataman, Lilian Were
Dried Agaricus bisporus powder (DAB)'s antioxidant capacity was tested in refrigerated cooked ground beef (CGB) containing 0, 1 or 1.5% NaCl. Lipid and protein oxidation products were monitored over time and correlated with changes in phenolic content. On day 16, 88-94% lower malondialdehyde (MDA) was found in CGB with DAB compared to control (1.15mg MDA/kg samples). Volatile aldehydes were up to 99% lower on day 16 in CGB with DAB than controls. In unsalted CGB, thiols dropped by 82% in control compared to <60% in CGB with DAB...
February 16, 2017: Meat Science
https://www.readbyqxmd.com/read/28231393/effects-of-tissue-culture-and-mycorrhiza-applications-in-organic-farming-on-concentrations-of-phytochemicals-and-antioxidant-capacities-in-ginger-zingiber-officinale-roscoe-rhizomes-and-leaves
#3
Byungrok R Min, Lurline E Marsh, Keegan Brathwaite, Adebola O Daramola
Tissue culture and mycorrhiza applications can provide disease-free seedlings and enhanced nutrient absorption, respectively, for organic farming. Ginger (Zingiber officinale Roscoe) is rich in phytochemicals and has various health-protective potentials. This study was aimed at determining effects of tissue culture and mycorrhiza applications alone or in combinations in organic farming on phytochemical contents (total phenolics and flavonoids [TP and TF, respectively], gingerol and shogaol homologues, phenolic acids, and carotenoids) and antioxidant capacities (DPPH [2,2-diphenyl-1-picrylhydrazyl] radical scavenging, oxygen radical absorbance (ORAC), and iron-chelating capacities [ICC]) in solvent-extractable (Free) and cell-wall-matrix-bound (Bound) fractions of ginger rhizome and Free fraction of the leaves in comparison with non-organics...
February 23, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28231176/volatile-composition-of-smoked-and-non-smoked-iranian-rice
#4
Leontina Lipan, Mohammad Hojjati, Hussein El-Zaeddi, Lucía Sánchez-Rodríguez, Ángel Antonio Carbonell-Barrachina
In this work, the volatile profiles of smoked and non-smoked Iranian rice were identified, and their relative abundance was calculated and compared. Headspace solid-phase microextraction together with gas chromatography-mass spectrometry (SPME-GC-MS) were used to extract and identify the volatile compounds. The main groups of volatiles in Iranian rice were aldehydes, ketones, phenol derivatives, furans, linear hydrocarbons, esters and terpenes. The chemical family aldehydes was the most abundant one in the profile of non-smoked rice, while phenol derivatives and furans predominated in smoked samples...
November 30, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231162/phenolic-pro%C3%AF-le-and-antioxidant-activity-of-melon-cucumis-melo-l-seeds-from-pakistan
#5
Alam Zeb
Phenolic composition of different extracts of honeydew melon seeds and their antioxidant activity was determined for the first time. Phenolic compounds were identified using a reversed phase high performance liquid chromatography with diode array detection (HPLC-DAD) method. Results showed the identification of five phenolic compounds in water extract namely gallic acid and its derivative, hydroxybenzoic acid and catechin derivatives and caffeic acid.There were nine phenolic compounds identified in methanol-water extract, which are caffeic acid, two vanillic acid derivatives, ellagitanins, quercetin-3-rutinoside, derivatives of syringic acid and ellagic acid...
October 17, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231158/irradiation-maintains-functional-components-of-dry-hot-peppers-capsicum-annuum-l-under-ambient-storage
#6
Qumer Iqbal, Muhammad Amjad, Muhammad Rafique Asi, Aamir Nawaz, Samiya Mahmood Khan, Agustin Ariño, Tanveer Ahmad
Hot peppers used as natural flavoring and coloring agents are usually irradiated in prepacked form for decontamination. The effects of gamma radiation on the stability of functional components such as capsaicinoids and antioxidant compounds (carotenoids, ascorbic acid and total phenolics) were investigated in hot peppers (Capsicum annuum). Whole dried peppers packed in polyethylene bags were gamma irradiated at 0 (control), 2, 4, and 6 kGy and subsequently stored at 25 °C for 90 days. The irradiation dose did not substantially affect the initial contents of capsaicinoids, ascorbic acid and total phenolics, though the concentration of carotenoids declined by 8% from the control (76...
September 12, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231150/enhancing-the-total-phenolic-content-and-antioxidants-of-lemon-pomace-aqueous-extracts-by-applying-uv-c-irradiation-to-the-dried-powder
#7
Konstantinos Papoutsis, Quan V Vuong, Penta Pristijono, John B Golding, Michael C Bowyer, Christopher J Scarlett, Costas E Stathopoulos
Several studies have shown that UV-C (ultraviolet C) irradiation promotes the bioactive compounds and antioxidants of fresh fruits and vegetables. The aim of this study was to apply UV irradiation in dried lemon pomace powder for enhancing its phenolic content and antioxidant properties, thus more bioactive compounds should be available for extraction and utilization. Lemon pomace dried powder was placed under a UV lamp and treated with dosages of 4, 19, 80 and 185 kJ·m(-2), while untreated powder was used as a control...
August 23, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231141/determination-of-volatiles-by-odor-activity-value-and-phenolics-of-cv-ayvalik-early-harvest-olive-oil
#8
Gamze Guclu, Onur Sevindik, Hasim Kelebek, Serkan Selli
Ayvalik is an important olive cultivar producing high quality oils in Turkey. In the present study, volatile and phenolic compositions of early-harvest extra virgin olive oil (cv. Ayvalik) were determined. The solvent-assisted flavor evaporation (SAFE) technique was used for the extraction of volatile components. The aromatic extract obtained by SAFE was representative of the olive oil odor. A total of 32 aroma compounds, including alcohols, aldehydes, terpenes, esters, and an acid, were identified in the olive oil...
June 24, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231122/phenolic-profiles-and-antioxidant-activity-of-germinated-legumes
#9
Do Tan Khang, Tran Nhan Dung, Abdelnaser Abdelghany Elzaawely, Tran Dang Xuan
Bioactive compounds, which are naturally produced in plants, have been concerned with the food and pharmaceutical industries because of the pharmacological effects on humans. In this study, the individual phenolics of six legumes during germination and antioxidant capacity from sprout extracts were determined. It was found that the phenolic content significantly increased during germination in all legumes. Peanuts showed the strongest antioxidant capacity in both the DPPH• (1,1-diphenyl-2-picrylhydrazyl) method and the reducing power assay (32...
April 9, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231113/chemical-composition-antioxidant-and-antimicrobial-activity-of-essential-oils-from-organic-fennel-parsley-and-lavender-from-spain
#10
Irene Marín, Estrella Sayas-Barberá, Manuel Viuda-Martos, Casilda Navarro, Esther Sendra
The aim of this work was to (i) determine the chemical composition of the essential oils of three spices widely cultivated in Spain from organic growth: Foeniculum vulgare, Petroselium crispum, and Lavandula officinalis; (ii) determine the total phenolic content; (iii) determine the antioxidant activity of the essentials oils by means of three different antioxidant tests and (iv) determine the effectiveness of these essentials oils on the inhibition of Listeria innocua CECT 910 and Pseudomonas fluorescens CECT 844...
March 4, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231088/health-promoting-compounds-in-pigmented-thai-and-wild-rice
#11
Valentina Melini, Rita Acquistucci
Organic pigmented Thai rice and wild rice are commonly available in specialized Italian markets and food shops, and they are gaining popularity among consumers demanding healthy foods. Indeed, the typical colour of kernels, which is the unique characteristic of pigmented cereals, is due to the accumulation of pigments that are also responsible for a number of healthy effects. The aim of this study was to provide a portrait of two organic pigmented Thai rice varieties from Thailand and one wild rice variety from Canada, imported into Italy and at Italian consumers' disposal...
January 20, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28230740/application-of-chromatographic-and-spectroscopic-methods-towards-the-quality-assessment-of-ginger-zingiber-officinale-rhizomes-from-ecological-plantations
#12
Wojciech Koch, Wirginia Kukula-Koch, Zbigniew Marzec, Elwira Kasperek, Lucyna Wyszogrodzka-Koma, Wojciech Szwerc, Yoshinori Asakawa
The usefulness of ginger in the food industry and pharmacotherapy is strictly related to its content of various components. The study elucidates the chemical composition of Zingiber officinale rhizomes cultivated on ecological plantations on Shikoku Island (Japan). GC-MS analysis of terpene content, LC-MS determination of phenolic content, and the determination of 12 elements using AAS spectrometry were performed to give more detailed insight into the samples. Ninety-five percent of terpene composition was elucidated, with zingiberene as the most abundant sesquiterpene (37...
February 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230729/catechol-groups-enable-reactive-oxygen-species-scavenging-mediated-suppression-of-pkd-nfkappab-il-8-signaling-pathway-by-chlorogenic-and-caffeic-acids-in-human-intestinal-cells
#13
Hee Soon Shin, Hideo Satsu, Min-Jung Bae, Mamoru Totsuka, Makoto Shimizu
Chlorogenic acid (CHA) and caffeic acid (CA) are phenolic compounds found in coffee, which inhibit oxidative stress-induced interleukin (IL)-8 production in intestinal epithelial cells, thereby suppressing serious cellular injury and inflammatory intestinal diseases. Therefore, we investigated the anti-inflammatory mechanism of CHA and CA, both of which inhibited hydrogen peroxide (H₂O₂)-induced IL-8 transcriptional activity. They also significantly suppressed nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) transcriptional activity, nuclear translocation of the p65 subunit, and phosphorylation of IκB kinase (IKK)...
February 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28230569/procedure-oriented-torsional-anatomy-of-the-hand-for-spasticity-injection
#14
Joslyn John, John Cianca, Faye Chiou-Tan, Sindhu Pandit, Erin Furr-Stimming, Katherine H Taber
OBJECTIVES: To provide musculoskeletal ultrasound (MSKUS) images of hand anatomy in the position of hemiparetic flexion as a reference for spasticity injections. After a stroke, spasticity can result in anatomic distortion of the hand. Spasticity may require treatment with botulinum toxin or phenol injections. Anatomic distortion may decrease the accuracy of injections. Standard anatomic references are of limited utility because they are not in this spastic hemiparetic position. There presently is no anatomic reference in the literature for these spastic postures...
February 23, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28230367/copper-catalyzed-regioselective-c-h-sulfonyloxylation-of-electron-rich-arenes-with-p-toluenesulfonic-acid-and-sulfonyloxylation-of-aryl-mesityl-iodonium-sulfonates
#15
He Huang, Yang Wu, Wen Zhang, Chun Feng, Bi-Qin Wang, Wan-Fei Cai, Ping Hu, Ke-Qing Zhao, Shi-Kai Xiang
Copper catalyzed regioselective C-H sulfonyloxylation of electron-rich arenes with p-toluenesulfonic acid has been developed. Electron-rich benzene derivatives and heteroarenes can undergo this C-H sulfonyloxylation reaction to generate aryl tosylates. Furthermore, sulfonyloxylation of aryl(mesityl)iodonium sulfonates has also been investigated. Both aryl(mesityl)iodonium tosylates and triflates can react smoothly to get aryl sulfonates. The formed aryl sulfonates can be converted to phenols, as well as used as good partners of cross-coupling reactions...
February 23, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28230305/br%C3%A3-nsted-acid-catalyzed-oxygenative-bimolecular-friedel-crafts-type-coupling-of-ynamides
#16
Dilip V Patil, Seung Woo Kim, Quynh H Nguyen, Hanbyul Kim, Shan Wang, Tuan Hoang, Seunghoon Shin
A non-metal approach for accessing α-oxo carbene surrogates for a C-C bond-forming bimolecular coupling between ynamides and nucleophilic arenes was developed. This acid-catalyzed coupling features mild temperature, which is critical for the required temporal chemoselectivity among nucleophiles. The scope of nucleophiles includes indoles, pyrroles, anilines, phenols and silyl enolethers. Furthermore, a direct test of SN 2' mechanism has been provided by employing chiral N,N'-dioxides which also enlightens the nature of the intermediates in related metal-catalyzed processes...
February 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28229968/cytotoxic-and-toxicogenomic-effects-of-silibinin-in-bladder-cancer-cells-with-different-tp53-status
#17
Daiane Teixeira DE Oliveira, Andre Luiz Ventura Savio, Joao Paulo DE Castro Marcondes, Tatiane Martins Barros, Ludmila Correia Barbosa, Daisy Maria Favero Salvadori, Glenda Nicioli DA Silva
Silibinin is a natural phenol found in the seeds of the milk thistle plant. Recent data have shown its effectiveness for preventing/treating bladder tumours. Therefore, in this study we investigated the cytotoxic and toxicogenetic activity of silibinin in bladder cancer cells with different TP53 statuses. Two bladder urothelial carcinoma cell lines were used: RT4 (wild-type TP53 gene) and T24 (mutated TP53 gene). Cell proliferation, clonogenic survival, apoptosis rates, genotoxicity and relative expression profile of FRAP/mTOR, FGFR3, AKT2 and DNMT1 genes and of miR100 and miR203 were evaluated...
March 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/28229145/oxidation-potentials-of-phenols-and-anilines-correlation-analysis-of-electrochemical-and-theoretical-values
#18
Ania S Pavitt, Eric J Bylaska, Paul G Tratnyek
Phenols and anilines have been studied extensively as reductants of environmental oxidants (such as manganese dioxide) and as reductates (e.g., model contaminants) that are transformed by environmental oxidants (ozone, triple organic matter, etc.). The thermodynamics and kinetics of these reactions have been interpreted using oxidation potentials for substituted phenols and anilines, often using a legacy experimental dataset that is of uncertain quality. Although there are many alternative oxidation potential data, there has been little systematic analysis of the relevance, reliability, and consistency of the data obtained by different methods...
February 23, 2017: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/28229141/functionalized-diamond-nanothreads-from-benzene-derivatives
#19
J F R V Silveira, A R Muniz
Diamond nanothreads (DNTs) are fully sp(3)-bonded one-dimensional carbon nanostructures, synthesized recently through compression of crystalline benzene. They possess outstanding mechanical strength, suitable for the development of novel nanostructured reinforced materials. In this article, we use density functional theory calculations to investigate the feasibility and physical properties of functionalized DNTs. We show that the stacking and covalent bonding of benzene derivative molecules (toluene, aniline, phenol and fluorobenzene) may lead to stable configurations analogous to benzene-derived DNTs, with functional groups (-CH3, -NH2, -OH, -F) covalently attached to the surface...
February 23, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28229135/the-colonic-metabolites-dihydrocaffeic-acid-and-dihydroferulic-acid-are-more-effective-inhibitors-of-in-vitro-platelet-activation-than-their-phenolic-precursors
#20
Gema Baeza, Eva-Maria Bachmair, Sharon Wood, Raquel Mateos, Laura Bravo, Baukje de Roos
Cardiovascular disease (CVD) is the major cause of morbidity and mortality worldwide. The consumption of a healthy diet rich in polyphenols has been inversely associated with the development of CVD. This study evaluated the effects of green coffee bean extract (GCBE) and yerba mate phenolic extract (YMPE), the main phenolic and methylxanthine constituents (5-caffeoylquinic acid, 3,5-dicaffeoylquinic acid, caffeine, and theobromine), and their main metabolites (caffeic acid, ferulic acid, dihydrocaffeic acid (DHCA) and dihydroferulic acid (DHFA)) on platelet activation in vitro...
February 23, 2017: Food & Function
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