keyword
MENU ▼
Read by QxMD icon Read
search

butylated hydroxytoluene

keyword
https://www.readbyqxmd.com/read/28633498/thymol-as-natural-antioxidant-additive-for-poultry-feed-oxidative-stability-improvement
#1
A Luna, R C Lema-Alba, J S Dambolena, J A Zygadlo, M C Labaque, R H Marin
Antioxidant are regularly included in poultry feed as protection from deterioration during storage. Recently the interest for the use of natural phytochemicals in animal diets has been increased. Thymol (THY) has been proven to be an effective antioxidant for extending broiler meat quality during storage with similar action to the widely used butylated hydroxytoluene (BHT). This study evaluates whether THY can also have a protective effect on the feed mash by assessing its antioxidant potential and related changes in fatty acid (FA) balance...
June 17, 2017: Poultry Science
https://www.readbyqxmd.com/read/28595453/chemical-composition-and-antioxidant-activities-of-the-essential-oil-of-hypericum-gaitii-haines-an-endemic-species-of-eastern-india
#2
Pradeep Kumar Kamila, Asit Ray, Sudipta Jena, Pradipta Kumar Mohapatra, Pratap Chandra Panda
The present study reports the chemical composition and antioxidant activities of the essential oil extracted from the leaves and tender branches of Hypericum gaitii Haines (Hypericaceae) - an endemic plant of Eastern India. On hydrodistillation, the fresh leaves and tender parts of H. gaitii yielded 0.43% (v/w) of pale yellowish essential oil. Gas chromatography mass spectrometry analysis revealed the presence of 40 compounds, which represent 96.9% of the total oil. Monoterpene hydrocarbons (79.3%) predominated followed by sesquiterpene hydrocarbons (12...
June 8, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28557337/a-reappraisal-of-the-proposed-metabolic-and-antioxidant-actions-of-butylated-hydroxytoluene-bht-in-the-liver
#3
Lorena Dos Santos Castro, Lívia Bracht, Jurandir Fernando Comar, Rosane Marina Peralta, Adelar Bracht
Butylated hydroxytoluene (BHT) was investigated for its metabolic actions in the perfused rat liver. Contrary to what is expected from an uncoupler, BHT up to 500 μM did not stimulate oxygen uptake nor did it inhibit gluconeogenesis from lactate. Transformation of fructose into glucose was also not affected by BHT; only lactate production was slightly increased at the concentration of 100 μM. The uncoupling effect of BHT in isolated mitochondria was confirmed, but only at concentrations above 10 μM; uncoupling at lower concentrations, 10(-9) to 10(-6)  M, could not be confirmed...
May 29, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28551227/simultaneous-analysis-of-tert-butylhydroquinone-tert-butylquinone-butylated-hydroxytoluene-2-tert-butyl-4-hydroxyanisole-3-tert-butyl-4-hydroxyanisole-%C3%AE-tocopherol-%C3%AE-tocopherol-and-%C3%AE-tocopherol-in-edible-oils-by-normal-phase-high-performance-liquid-chromatography
#4
Jun Li, Yanlan Bi, Shangde Sun, Dan Peng
A normal-phase high performance liquid chromatography method for the simultaneous determination of tert-butylhydroquinone, tert-butylquinone, butylated hydroxytoluene, 2-tert-butyl-4-hydroxyanisole, 3-tert-butyl-4-hydroxyanisole, α-tocopherol, γ-tocopherol, and δ-tocopherol in edible oils was investigated. A silica column was used to separate the analytes with the gradient elution. An ultraviolet-visible detector was set at dual wavelengths mode (280 and 310nm). The column temperature was 30°C. The analytes were directly extracted with methanol...
November 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28546949/properties-of-macerated-herbal-oil
#5
Fahsai Kantawong, Supawatchara Singhatong, Aomjai Srilamay, Kantarose Boonyuen, Niroot Mooti, Phenphichar Wanachantararak, Thasaneeya Kuboki
Introduction: The addition of herbs into hot sesame oil could increase the oil-pulling efficiency of sesame oil. The aim of present study was to modify the proportion of herbs and sesame oil with the addition of other ingredients including menthol, camphor, and borneol and improve the medicinal properties and the scent of the oil. Methods: Macerated herbal oil was prepared by heat extraction of five species of herbs (Zingiber cassumunar, Zingiber zerumbet, Plantago major Linn, Citrus hystrix, and Amomum biflorum) with hot sesame oil...
2017: BioImpacts: BI
https://www.readbyqxmd.com/read/28539735/pharmacognostic-specification-chlorogenic-acid-content-and-in-vitro-antioxidant-activities-of-lonicera-japonica-flowering-bud
#6
Chayanon Chaowuttikul, Chanida Palanuvej, Nijsiri Ruangrungsi
BACKGROUND: Lonicera japonica Thunb. or Japanese Honeysuckle has been widely used in traditional medicine for antipyretic. OBJECTIVE: To establish the pharmacognostic specification of L. japonica flowering bud in Thailand and to determine its chlorogenic acid content and in vitro antioxidant activities. MATERIALS AND METHODS: Dried L. japonica flowering bud from 15 various herbal drugstores throughout Thailand were investigated for pharmacognostic specification...
April 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/28539727/bioassay-guided-isolation-and-identification-of-antioxidant-flavonoids-from-cyclotrichium-origanifolium-labill-manden-and-scheng
#7
Abdussamat Guzel, Huseyin Aksit, Mahfuz Elmastas, Ramazan Erenler
BACKGROUND: Medicinal and aromatic plants play a significant role in drug discovery and development process. Flavonoids, revealing a wide spectrum of biological activities, extensively found in plants are important secondary metabolites. MATERIALS AND METHODS: Aerial parts of Cyclotrichium origanifolium were collected, dried, and boiled in water then extracted with hexane, ethyl acetate, and n-butanol. Total phenolic content, DPPH(•) scavenging activity, reducing power (FRAP) activity, and ABTS(•+) scavenging activity assays were applied for all extracts...
April 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28515648/evaluation-of-antioxidative-activity-of-various-levels-of-ethanol-extracted-tomato-powder-and-application-to-pork-patties
#8
Hyeong Sang Kim, Koo Bok Chin
This study was performed to evaluate antioxidant activity of tomato powder extracted by various concentrations of ethanol (0, 25, 50, 75, 100%) and to evaluate the physicochemical properties and antioxidant activities of pork patties with ethanol extracted tomato (EET) powder. No differences in the contents of total of individual phenolic compounds including gallic acid and catechin, were observed among the treatments (p>0.05). Among the various concentrations, 50% and 75% EET powder showed the highest free radical scavenging and iron chelating activities (p<0...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28490135/polyunsaturated-lipids-and-vitamin-a-oxidation-during-cod-liver-oil-in-vitro-gastrointestinal-digestion-antioxidant-effect-of-added-bht
#9
Bárbara Nieva-Echevarría, Encarnación Goicoechea, María D Guillén
The extent of cod liver oil hydrolysis and oxidation during in vitro gastrointestinal digestion was investigated by Proton Nuclear Magnetic Resonance ((1)H NMR) and Solid Phase Microextraction-Gas Chromatography/Mass Spectrometry (SPME-GC/MS). These techniques evidenced the degradation of polyunsaturated ω-3 and ω-6 lipids and, for the first time, that of vitamin A, naturally present in cod liver oil. Cis,trans-conjugated dienes associated with hydroperoxides, as well as monoepoxides, cis,trans-2,4-alkadienals, 4-hydroperoxy- and 4-hydroxy-2-alkenals, and several vitamin A derived metabolites were generated...
October 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28482695/previously-undescribed-antioxidative-azocinyl-morpholinone-alkaloid-from-red-seaweed-gracilaria-opuntia-with-anti-cyclooxygenase-and-lipoxygenase-properties
#10
Fasina Makkar, Kajal Chakraborty
In vitro antioxidative and anti-inflammatory bioassay-guided fractionation of the methanol: ethyl acetate crude extract of the thalli of red seaweed Gracilaria opuntia collected from the Gulf of Mannar led to the isolation of a new morpholine alkaloid 3-(2-ethyl-6-((3Z,7Z)-1,2,5,6-tetrahydroazocin-5-yl)hexyl) morpholin-6-one. The substituted azocinyl morpholinone recorded significant 1,1-diphenyl-2-picryl-hydrazil free radical scavenging activities (IC50 ~ 0.086 mg/mL) compared to the commercially available antioxidants, butylated hydroxyanisole, butylated hydroxytoluene, and α-tocopherol (IC50 > 0...
May 8, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28423872/potential-antioxidant-and-lipid-peroxidation-inhibition-of-phyllanthus-acidus-leaf-extract-in-minced-pork
#11
Tuyen Thi Kim Nguyen, Chamroon Laosinwattana, Montinee Teerarak, Komkhae Pilasombut
Objective: This study was to investigate the effect of extraction solvents on antioxidant bio-active compounds as well as potential antioxidant and lipid peroxidation inhibition of Phyllanthus acidus leaf extract in minced pork. Methods: The effect of various solvent systems of water, 25%, 50%, 75% (v/v) ethanol in water and absolute ethanol on the extraction crude yield, total phenolic content, total flavonoid content and in vitro antioxidant activities of P. acidus leaves was determined...
April 19, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28416215/stir-bar-sorptive-extraction-and-liquid-chromatography-tandem-mass-spectrometry-determination-of-polar-and-non-polar-emerging-and-priority-pollutants-in-environmental-waters
#12
Irene Aparicio, Julia Martín, Juan Luis Santos, José Luis Malvar, Esteban Alonso
An analytical method based on stir bar sorptive extraction (SBSE) was developed and validated for the determination of environmental concern pollutants in environmental waters by liquid chromatography-tandem mass spectrometry (LC-MS/MS). Target compounds include six water and oil repellents (perfluorinated compounds), four preservatives (butylated hydroxytoluene and three parabens), two plasticizers (bisphenol A and di(2-ethylhexyl)phthalate), seven surfactants (four linear alkylbenzene sulfonates, nonylphenol and two nonylphenol ethoxylates), a flame retardant (hexabromocyclododecane), four hormones, fourteen pharmaceutical compounds, an UV-filter (2-ethylhexyl 4-methoxycinnamate) and nine pesticides...
April 7, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28408278/study-on-the-chemical-and-microbial-composition-and-probiotic-characteristics-of-dominant-lactic-acid-bacteria-in-fermented-poultry-slaughterhouse-waste
#13
O Ashayerizadeh, B Dastar, F Samadi, M Khomeiri, A Yamchi, S Zerehdaran
This study aimed to evaluate the quality of fermented poultry slaughterhouse waste and isolate and identify the probiotic bacteria present in it. Poultry slaughterhouse waste samples supplemented with 5% starter culture and 0.2% propionic acid received one of four experimental treatments, which consisted of further supplementation with: (1) 10% molasses (M10); (2) 15% molasses (M15); (3) 10% molasses with 200ppm butylated hydroxytoluene (MB10); and (4) 15% molasses with 200ppm butylated hydroxytoluene (MB15)...
April 10, 2017: Waste Management
https://www.readbyqxmd.com/read/28375185/aromatic-plants-antioxidant-capacity-and-polyphenol-characterisation
#14
Charalampos Proestos, Theo Varzakas
The antioxidant properties and polyphenol content of some selected aromatic plants grown in Greece were studied. Plants were refluxed with 60% methanol after acid hydrolysis. The phenolic substances were quantified by High Performance Liquid Chromatography-Diode Array Detector (HPLC-DAD). The antioxidant capacity of the extracts was determined with the Rancimat test using sunflower oil as substrate. Free radical scavenging activity was measured using the stable free radical 1, 1-diphenyl-2-picrylhydrazyl (DPPH)...
April 4, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28362473/the-effect-of-antioxidants-on-quantitative-changes-of-lysine-and-methionine-in-linoleic-acid-emulsions-at-different-ph-conditions
#15
Marzanna Hęś, Anna Gliszczyńska-Świgło, Anna Gramza-Michałowska
BACKGROUND: Plants are an important source of phenolic compounds. The antioxidant capacities of green tea, thyme and rosemary extracts that contain these compounds have been reported earlier. However, there is a lack of accessible information about their activity against lipid oxidation in emulsions and inhibit the interaction of lipid oxidation products with amino acids. Therefore, the influence of green tea, thyme and rosemary extracts and BHT (butylated hydroxytoluene) on quantitative changes in lysine and methionine in linoleic acid emulsions at a pH of isoelectric point and a pH lower than the isoelectric point of amino acids was investigated...
January 2017: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28297743/a-simple-headspace-gc-ms-method-for-the-quantitative-determination-of-the-release-of-the-antioxidants-butylated-hydroxyanisole-and-butylated-hydroxytoluene-from-chewing-gum
#16
Enrico Davoli, Antonio Bastone, Giancarlo Bianchi, Mario Salmona, Luisa Diomede
RATIONALE: Butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) are widely used to prevent oxidation and rancidity in foodstuffs, pharmaceutical preparations and cosmetic formulations. Although their safety has been thoroughly investigated, possible endocrine side-effects have been suggested. A useful method for the determination of BHA and BHT in foods is needed to estimate their daily intake through the diet. METHODS: We selected commercial chewing gum as a model of complex food matrix and developed a new method based on gas chromatography/mass spectrometry...
March 15, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28283452/fractionation-of-enzymatic-hydrolysis-lignin-by-sequential-extraction-for-enhancing-antioxidant-performance
#17
Liangliang An, Guanhua Wang, Hongyu Jia, Cuiyun Liu, Wenjie Sui, Chuanling Si
The heterogeneity of lignin chemical structure and molecular weight results in the lignin inhomogeneous properties which also covers the antioxidant performance. In order to evaluate the effects of lignin heterogeneity on its antioxidant activity, four lignin fractions from enzymatic hydrolysis lignin were classified by sequential organic solvent extraction and further evaluated by DPPH (1,1-Diphenyl-2-Picrylhydrazyl) free radical scavenging capacity and reducing power analysis. The characterization including FTIR, (1)H NMR and GPC showed that the fractionation process could effectively separate lignin fractions with distinctly different molecular weight and weaken the heterogeneity of unfractionated lignin...
June 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28273584/antioxidant-activity-of-pomegranate-peel-extract-on-lipid-and-protein-oxidation-in-beef-meatballs-during-frozen-storage
#18
Sebahattin Serhat Turgut, Fatma Işıkçı, Ayla Soyer
Antioxidant effect of pomegranate peel extract (PE) to retard lipid and protein oxidation in beef meatballs was investigated during frozen storage at -18±1°C. Concentrated and freeze dried aqueous extract of pomegranate peel was incorporated into freshly prepared meatball mix at 0.5% and 1.0% concentrations, and compared with 0.01% butylated hydroxytoluene (BHT) and control (without any antioxidant). In PE treated samples, particularly in high PE concentration, peroxide, malondialdehyde and carbonyl formation, loss of total protein solubility and sulfhydryl groups were significantly lower than control after 6months of storage...
July 2017: Meat Science
https://www.readbyqxmd.com/read/28272837/the-effect-of-buckwheat-hull-extract-on-lipid-oxidation-in-frozen-stored-meat-products
#19
Marzanna Hęś, Artur Szwengiel, Krzysztof Dziedzic, Joanna Le Thanh-Blicharz, Dominik Kmiecik, Danuta Górecka
This study investigated the effect of antioxidants on lipid stability of frozen-stored meat products. Buckwheat hull extract was used to enrich fried meatballs made from ground pork. During 180-d storage of meat products, lipid oxidation (peroxide and 2-thiobarbituric acid reactive substances [TBARS] value) was periodically monitored. The results were compared with butylated hydroxytoluene (BHT). The addition of antioxidants decreased lipid oxidation in stored meatballs. The highest ability to control peroxide and TBARS values was demonstrated for buckwheat hull extract...
April 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28257057/purification-and-identification-of-antioxidant-peptides-from-protein-hydrolysate-of-scalloped-hammerhead-sphyrna-lewini-cartilage
#20
Xue-Rong Li, Chang-Feng Chi, Li Li, Bin Wang
The aim of this study was to purify and identify peptides with antioxidant properties from protein hydrolysate of scalloped hammerhead (Sphyrna lewini) cartilage. Cartilaginous proteins of the scalloped hammerhead were extracted by guanidine hydrochloride, and three antioxidant peptides, named enzymolysis peptide of scalloped hammerhead cartilage A (SCPE-A), SCPE-B and SCPE-C, were subsequently isolated from the hydrolysate of the cartilaginous proteins using ultrafiltration and chromatography. The amino acid sequences of SCPE-A, SCPE-B and SCPE-C were identified as Gly-Pro-Glu (GPE), Gly-Ala-Arg-Gly-Pro-Gln (GARGPQ), and Gly-Phe-Thr-Gly-Pro-Pro-Gly-Phe-Asn-Gly (GFTGPPGFNG), with molecular weights of 301...
March 1, 2017: Marine Drugs
keyword
keyword
40593
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"