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Showing 1-30 of 37 results for "137731" within Papers
Xing Han et al.
Environmental science & technology, 41(9), 3269-3276 (2007-06-02)
Bioaccumulation in fish depends on the dynamics of various processes that involve fish uptake, storage, and elimination of xenobiotics. Elimination via fish biotransformation is a primary process that can be evaluated in an in vitro system to improve the performance
Charlène Pouech et al.
Journal of chromatography. A, 1423, 111-123 (2015-11-12)
Polymer items are extensively present in the human environment. Humans may be consequently exposed to some compounds, such as additives, incorporated in these items. The objective of this work is to assess the human exposure to the main additives such
Tadashi Toyama et al.
Biodegradation, 21(2), 157-165 (2009-08-26)
A novel bacterium capable of utilizing 2-sec-butylphenol as the sole carbon and energy source, Pseudomonas sp. strain MS-1, was isolated from freshwater sediment. Within 30 h, strain MS-1 completely degraded 1.5 mM 2-sec-butylphenol in basal salt medium, with concomitant cell
Sherry Cox et al.
PeerJ, 5, e3476-e3476 (2017-07-05)
Propofol is an intravenous anesthetic commonly used due to its favorable pharmacokinetic and pharmacodynamic profile. There are discrepancies in the literature about the most appropriate sample for determining propofol concentrations. Although plasma has been used for determining propofol concentrations, whole
Isaac Garcia-Bosch et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 18(7), 2113-2122 (2012-01-18)
Reactions of the unsymmetric dicopper(II) peroxide complex [Cu(II)(2)(μ-η(1):η(1)-O(2))(m-XYL(N3N4))](2+) (1 O(2), where m-XYL is a heptadentate N-based ligand), with phenolates and phenols are described. Complex 1 O(2) reacts with p-X-PhONa (X = MeO, Cl, H, or Me) at -90 °C performing tyrosinase-like ortho-hydroxylation of
Supamas Danwittayakul et al.
Environmental technology, 38(16), 1987-1996 (2016-10-21)
Solar water disinfection (SODIS) is a simple point-of-use process that uses sunlight to disinfect water for drinking. Polyethylene terephthalate (PET) bottles are typically used as water containers for SODIS, but a new SODIS container design has recently been developed with
Soo Jung Choi et al.
Journal of medicinal food, 19(3), 281-289 (2015-10-28)
One of the critical features of Alzheimer's disease is cognitive dysfunction, which is, in part, due to decreases in acetylcholine (ACh). The ethanol extract of Perilla frutescens was selected for isolating the acetylcholinesterase (AChE) inhibitor based on preliminary screening. In
The first catalytic tyrosinase model system based on a mononuclear copper(I) complex: kinetics and mechanism.
Malte Rolff et al.
Angewandte Chemie (International ed. in English), 49(36), 6438-6442 (2010-07-24)
Mutsuko Hirata-Koizumi et al.
Congenital anomalies, 45(4), 146-153 (2005-12-20)
In order to determine the susceptibility of newborn rats to 2-tert-butylphenol (2TBP) and 2,4-di-tert-butylphenol (DTBP) toxicity, studies were conducted with oral administration from postnatal days (PND) 4 to 21 and the findings were compared with results for young rats exposed
L Cherta et al.
Food chemistry, 188, 301-308 (2015-06-05)
The potential of an advanced analytical strategy based on the use of gas chromatography (GC) coupled to high resolution mass spectrometry (HRMS) with two different analyzers and ionization sources has been investigated and applied to the non-target analysis of food
Mee Kyung Sang et al.
Phytopathology, 101(6), 666-678 (2011-03-17)
We previously selected rhizobacterial strains CCR04, CCR80, GSE09, ISE13, and ISE14, which were antagonistic to Phytophthora blight of pepper. In this study, we investigated the effects of root treatment of rhizobacteria on anthracnose occurrence, ripening, and yield of pepper fruit
M A O'Malley et al.
Journal of occupational medicine. : official publication of the Industrial Medical Association, 30(6), 512-516 (1988-06-01)
We investigated the occurrence of cutaneous depigmentation (vitiligo) among employees of a company that manufactured hydraulic pumps. The interiors of these pumps were injection-molded with rubber. We identified a small but significant cluster of vitiligo cases among a group of
Qi-Zhi Su et al.
Talanta, 202, 285-296 (2019-06-07)
Atmospheric pressure gas chromatography (APGC) coupled to quadrupole time-of-flight (QTOF) and electron ionization mass spectrometry together with commercial library search are two complementary techniques for non-target screening of volatile and semi-volatile compounds. Optimization was first conducted to achieve easier search
Wei Lv et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1142, 122037-122037 (2020-03-15)
Daodi medicinal material (DMM), which is traditional Chinese herbal medicine that has been used for long periods and have gained credibility in clinical practice, is part of the Chinese culture. However, Zhongning Goji berries (ZNG), a DMM, are illegally adulterated
Savita K Sharma et al.
Journal of the American Chemical Society, 139(48), 17421-17430 (2017-11-02)
Peroxynitrite (
Textural mesoporosity and the catalytic activity of mesoporous molecular sieves with wormhole framework structures.
Pauly TR, et al.
Journal of the American Chemical Society, 121(38), 8835-8842 (1999)
Mohsen Golestanzadeh et al.
Materials science & engineering. C, Materials for biological applications, 71, 709-717 (2016-12-19)
Phenolic antioxidants play important role in prevention of oxidation in different industrials. The research objective in the current study was synthesis and evaluate of antioxidant activity of star-shape phenolic antioxidants. The synthetic compounds were prepared in the presence of sulfonated
Mi-Ae Yoon et al.
Biological & pharmaceutical bulletin, 29(4), 735-739 (2006-04-06)
The oxidized low-density lipoprotein (ox-LDL) plays a critical role at the early stages of atherosclerosis. Thus, the prevention of LDL-oxidation by antioxidants may arrest the progression of atherosclerosis. Two quinoline alkaloids, 3,8-dihydroxyquinoline (1) and 2,8-dihydroxy-3,4-dimethoxyquinoline (3), and 2,4-di-tert-butylphenol (2) were
M V Chidambaram et al.
Journal of pharmaceutical sciences, 80(8), 810-811 (1991-08-01)
The initial yield of 3,5-di-t-butylsalicylic acid obtained via Kolbe-Schmitt carboxylation of the potassium salt of 2,4-di-t-butylphenol was less than 1% and was accompanied by a 65% yield of 2,2'-dihydroxy-3,3',5,5'- tetra-t-butylbiphenyl, a dimer of the 2,4-di-t-butylphenol formed by ortho coupling of
S Kalaichelvan et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 85(1), 198-209 (2011-10-25)
In the present work, we reported a combined experimental and theoretical study on conformational stability, molecular structure and vibrational spectra of 2,4-di-tert-butylphenol (2,4-DTBP). The FT-IR (400-4000cm(-1)) and FT-Raman spectra (50-3500cm(-1)) of 2,4-DTBP were recorded. The molecular geometry, harmonic vibrational frequencies
Sisi Deng et al.
Chemical senses, 37(2), 141-150 (2011-08-20)
Odorant-binding proteins (OBPs) are found in both insects and vertebrates, and it is believed that they are involved in chemical communication. In this study, we identify and express 2 OBPs from the scarab beetle, Holotrichia oblita Faldermann (Coleoptera: Scarabaeidae). HoblOBP1
Hehe Li et al.
Food chemistry, 284, 100-107 (2019-02-13)
Key odorants of Guojing sesame-flavor Baijiu were identified using the concept of molecular sensory science, including aroma extract dilution analysis (AEDA) based on gas chromatography-olfactometry (GC-O) combined with gas chromatography-mass spectrometry (GC-MS). A total of 509 volatile compounds were detected
Motoh Mutsuga et al.
Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan, 44(2), 103-109 (2003-07-09)
Polyvinyl chloride gloves containing di(2-ethylhexyl) phthalate are restricted for food contact use. In their place, disposable gloves made from nitrile-butadiene rubber (NBR) are used in contact with foodstuffs. Some unknown substances were found to migrate into n-heptane from NBR gloves.
Verónica Ramírez et al.
Frontiers in microbiology, 11, 741-741 (2020-05-20)
Volatile organic compounds (VOCs) produced by rhizobacteria have been proven to stimulate plant growth during germination and seedling stages. However, the modulating effect of bacterial volatiles on the germination of seeds subjected to heavy metal stress is scarcely studied. In
Noemí Dorival-García et al.
Journal of chromatography. A, 1513, 69-77 (2017-07-26)
Despite their advantages, there is concern that single-use systems used in biopharmaceutical manufacture might release potentially toxic substances during standard unit operations that negatively impact cell growth. Characterization of the extractables profile for single-use systems is necessary to know which
Coraline Simon et al.
Toxicology in vitro : an international journal published in association with BIBRA, 37, 121-133 (2016-10-19)
Endocrine activity of 65 compounds migrating from polycarbonate replacement plastic baby bottles was assessed using in vitro cell based assays (reporter gene assays) involving 7 nuclear receptors, i.e. human steroid hormones receptors (oestrogen, androgen, progesterone and glucocorticoid receptors), human thyroid
Antía Lestido-Cardama et al.
Foods (Basel, Switzerland), 9(8) (2020-08-06)
Food packaging has received special attention from the food safety standpoint since it could be a potential source of contamination through the migration of chemical substances from the packaging material into food. The assessment of the exposure through the diet
Nunna V Krishna et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 23(7), 1604-1612 (2016-11-30)
A new intrinsic hydrolysis method was employed, for the first-time, to synthesize well-ordered H-AlSBA-15 with trivalent aluminium exclusively in the tetrahedral framework structure of SBA-15. Unlike other methods, which involve incorporation of aluminium ions in both the framework (Brønsted) and
Sri Nurestri Abdul Malek et al.
Molecules (Basel, Switzerland), 14(5), 1713-1724 (2009-05-28)
Dihydroactinidiolide (1) and a mixture of sterols [campesterol (2), stigmasterol (3) and beta-sitosterol (4)], together with the previously isolated individual compounds beta-sitosterol (4), 2,4-di-tert-butylphenol (5), alpha-tocopherol (6), phytol (7) were isolated from the active ethyl acetate fraction of Pereskia bleo
A Iwado et al.
Chemical & pharmaceutical bulletin, 48(11), 1831-1832 (2000-11-22)
Anion-exchange resins modified with metal-porphine (M-Pr) have been investigated to develop a solid catalyst in the oxidative reaction of phenols by O2 in air. Co-Pr, which is easily prepared and separable from the reaction mixture, has been proved to accelerate
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