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Chemistry, Agricultural (0):
Recent article
Chemistry, Agricultural
Abstract
In its broadest definition, biomass can be described as all material that was or is a part of a living organism. For renewable energy applications, however, the definition of biomass is usually limited to include only materials that are plant-derived such as agricultural residues (e.g., wheat straw,...
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PMID: 19768622
PDF is available here.
PDF is available here.
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Ecological Applications (20)1 2010
Abstract
We quantified total N deposition at two locations, Dongbeiwang near Beijing and Quzhou in Hebei province, over a two-year period from 2005 to 2007 using an 15N tracer method, the integrated total N input (ITNI) system. Total airborne N inputs to a maize wheat rotation system at both locations ranged...
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PMID: 20349831
PDF is available here.
PDF is available here.
Abstract
Renewed interest in converting biomass to biofuels such as ethanol, other forms of bioenergy, and bioenergy byproducts or coproducts of commercial value opens opportunities for chemists, including agricultural chemists and related disciplines. Applications include feedstock characterization and quan...
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PMID: 18473470
PDF is available here.
PDF is available here.
Abstract
Abstract
Discoloration in fruits and vegetables is reviewed in relation to the chemical and biochemical causes of black, brown, red, yellow, and green discolorations. In raw materials, only a limited understanding has so far been achieved of the internal black and brown discolorations. The biochemical signal...
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PMID: 17453927
PDF is available here.
PDF is available here.
Abstract
On the basis of agronomical, economic and radiological estimations of results of long-term researches with organic fertilizers (peat, sapropel, manure, mixes manure and peat) it is established, that is effective at improvement of the waterless meadows on sod-podsolic sandy soils contaminated by radi...
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PMID: 17953432
PDF is available here.
PDF is available here.
Drug Discovery Today (11)17-18 2006
Abstract
We try to address some of these concerns, draw out the similarities between agrochemical and pharmaceutical research and highlight opportunities for drug discovery that are offered by pesticide-related compounds, particularly with regard to herbicides and compounds with leadlike physical properties....
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PMID: 16935753
PDF is available here.
PDF is available here.
Electrophoresis (27)1 2006
Abstract
We describe articles concerning clinical and pharmaceutical studies, neuroclinical applications, and agricultural and food analysis....
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PMID: 16421950
PDF is available here.
PDF is available here.
Abstract
The content and distribution of stilbenes and resin acids in Scots pine (Pinus sylvestris) and spruce (Picea abies), sampled in central Norway, have been examined. The contents of pinosylvin stilbenes in pine heartwood/living knots were 0.2-2/2-8 %(w/w). No stilbenes could be detected in spruce (Pic...
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PMID: 17962750
PDF is available here.
PDF is available here.
Abstract
The paper considers the topical aspects of safe agricultural use of fertilizers. Temporary hygienic standards for the fertilizer levels of toxic elements have been developed: 8 mg/kg for cadmium; 15 mg/kg for lead; 10 mg/kg for arsenic.
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PMID: 17078293
PDF is available here.
PDF is available here.
Abstract
The recent progress and future prospects for the successful application of combinatorial chemistry and high throughput screening within the agrochemical lead discovery process are outlined and discussed. Solid and solution phase library synthesis technologies are reviewed and compared, and the role...
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PMID: 16305353
PDF is available here.
PDF is available here.
Abstract
The demand for new herbicides, insecticides and fungicides led to a steady increase in the number of compounds being tested to find novel market products. To keep pace with the rising workload, high throughput screening (HTS) technologies have been introduced. In agrochemical research miniaturised i...
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PMID: 16305356
PDF is available here.
PDF is available here.
Abstract
A novel class of highly active dihydropyridine miticides was prepared using a multicomponent reaction process. The initial lead was rapidly optimized using solution phase parallel synthesis techniques and a positional scanning approach. Detailed structure-activity relationships were developed for th...
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PMID: 16305359
PDF is available here.
PDF is available here.
Abstract
In vivo high throughput screening (HTS) has been adopted by most of the larger crop protection companies as an important tool for the discovery of new agrochemicals. There has been a paradigm shift in capabilities from screening a few thousand compounds a year to several hundred thousand and the qua...
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PMID: 16305355
PDF is available here.
PDF is available here.
Abstract
We produce small to medium sized compound libraries using liquid phase techniques. An example of a compound library taken from the herbicide area is given....
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PMID: 16305361
PDF is available here.
PDF is available here.
Abstract
During the past ten years combinatorial chemistry developed from a powerful synthetic methodology, providing large libraries of usually simple new chemical entities, to a comprehensive strategy presently covering a multitude of technologies across the whole workflow from hit generation to lead optim...
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PMID: 16305354
PDF is available here.
PDF is available here.
Abstract
A general route to a series of differentially substituted bicyclo[2,2,2]octenones has been developed, making use of the in situ intramolecular Diels Alder reaction of masked ortho-benzoquinones. This approach was used to synthesize a series of thirteen key acid-containing templates from which a solu...
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PMID: 16305358
PDF is available here.
PDF is available here.
Abstract
Amino acids were immobilised by attaching them via a carbamate linker to Wang resin. These intermediates were converted to 1-(1,3-benzoxazol-2-yl)alkanamines over three steps, followed by coupling with 4-alkyl-6-chloro-1,3,5-triazine-2-amines to furnish the desired N-[1-(1,3-benzoxazol-2-yl)alkyl]-6...
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PMID: 16305360
PDF is available here.
PDF is available here.
Abstract
On the basis of long-term stationary experience it was established that the minimum accumulation quantities for 137Cs and 90Sr in the herbage of the dry, lowland and flood-plain types of the Belarus Polessje meadows contaminated with Chemobyl radionuclides are determined when the optimum of basic ag...
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PMID: 15810531
PDF is available here.
PDF is available here.
Abstract
The development of the knowledge on the mineral nutrition of plants begins between the 17th and 18th centuries when some European naturalists gave the first experimental evidences of what had been empirically known for about two millennia. The works of Hales and Ingenhousz were of absolute importanc...
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PMID: 16180194
PDF is available here.
PDF is available here.
Abstract
Following recent NSW Government restructuring, the Department of Agriculture now exists in a composite form along with Forestry, Fisheries and Minerals in the new NSW Department of Primary Industries. This paper outlines some of the highlights of secondary metabolite R&D accomplished in the 25 years...
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PMID: 18007515
PDF is available here.
PDF is available here.
Abstract
Fluorine has come to be recognized as a key element in materials science: in heat-transfer agents, liquid crystals, dyes, surfactants, plastics, elastomers, membranes, and other materials. Furthermore, many fluorine-containing biologically active agents are finding applications as pharmaceuticals an...
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PMID: 15614922
PDF is available here.
PDF is available here.
Abstract
These data renew fears that the use of biocides may lead to an increased selective pressure towards antibiotic resistance....
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PMID: 15269199
PDF is available here.
PDF is available here.
Abstract
This review will describe some of the changes occurring in formulation types employed and the further trends that are driving technologies. These will be illustrated by examples of water-based dispersion formulation technology for oil-in-water emulsions (EW) and suspension-emulsions (SE) as well as...
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PMID: 14672843
PDF is available here.
PDF is available here.
Revue d histoire de la pharmacie (51)337 2003
Abstract
Henri Braconnot was born in Commercy in 1780. When he was 13 years old, he was bound apprentice in the pharmacy of Graux in Nancy. He remained here for two years, learning pharmacy, chemistry and botany. When the army called him, his position in Strasbourg allowed him to study. After it, he came to...
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PMID: 12894794
PDF is available here.
PDF is available here.
Abstract
The paper presents current trends in the use of pesticides and detection of their residues in the environmental objects. Pesticides are shown to be a serious health risk factor for different groups of the population when they are irrationally used and inadequately stored. A package of measures to pr...
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PMID: 14598745
PDF is available here.
PDF is available here.
Toxicological Sciences (66)1 2002
Abstract
Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen) (67)3 2002
Abstract
NeemAzal PC (0.5% Azadirachtin) is a new standardised powder formulation from the seed kernels of the tropical Neem tree (Azadirachta indica A. Juss) with an inert carrier. First experiments with beans--as a model-system for hydroponics--show that active ingredient is taken up by the plants through...
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PMID: 12696431
PDF is available here.
PDF is available here.
Abstract
Abstract
Nitrogen (N) fertilization in agriculture has been discussed controversially in Germany for almost two centuries. The agronomist Carl Sprengel, who published his theory on the mineral nutrition of plants in 1828, advocated the use of mineral N fertilizers. Chemist Justus von Liebig, on the other han...
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PMID: 12805882
PDF is available here.
PDF is available here.
Abstract
Eighteen pan lysimeters were installed at a depth of 1.2 m in a Hagerstown silt loam soil in a corn field in central Pennsylvania in 1988. In 1995, wick lysimeters were also installed at 1.2 m depth in the same access pits. Treatments have included N fertilizer rates, use of manure, crop rotation (c...
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PMID: 12805869
PDF is available here.
PDF is available here.
Abstract
The atmospheric deposition of nitrogen (N) in the environment is of great concern due to its impact on natural ecosystems including affecting vegetation, reducing biodiversity, increasing tree growth in forests, and the eutrophication of aquatic systems. Taking into account the average annual N emis...
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PMID: 12805871
PDF is available here.
PDF is available here.
Abstract
In the mid 1970s, the available RMs, notably Bowen's Kale and Orchard Leaves and Bovine liver from National Bureau of Standards (NBS), although of great benefit, were overwhelmingly insufficiently representative, in respect of matrix and elemental composition, of the wide range of natural products s...
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PMID: 11451252
PDF is available here.
PDF is available here.
Abstract
The reaction of L-tryptophan (Trp) with D-glucose under conditions that can occur during food processing and preparation was studied by high-performance liquid chromatography with diode array detection (HPLC/DAD). Besides the well-established glucose-tryptophan Amadori product (AP), (1R,3S)-1-(D-glu...
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PMID: 10888507
PDF is available here.
PDF is available here.
Abstract
The 3D-QSAR method of comparative molecular field analysis (CoMFA) was applied to three patent families of chemical hybridization agents (CHAs) in the MON21200 class of chemistry. The models for each CHA family gave good correlations between the variations in log percent male sterility and in the st...
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PMID: 10606603
PDF is available here.
PDF is available here.
Trends in Biotechnology (17)11 1999
Abstract
Nippon Saikingaku Zasshi (54)4 1999
Abstract
Abstract
An efficient procedure for the preparation of 4-hydroxy-3-{1,2,3,4-tetra-hydro-3-[4-(4-triflu-oromethylbenzyl oxy)phenyl]-1-naphthyl}thiocoumarin (thioflocoumafen, 1a and 1b) is described. The key step in the synthesis involves the condensation reaction of 3-(4-methoxyphenyl)-1-tetralol (2) with 4-h...
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PMID: 10403135
PDF is available here.
PDF is available here.
Abstract
Abstract
The thermogenesis curves of the germination of different rice and tree seeds were determined and studied by using a newly constructed microcalorimeter. The thermogenesis curves of the germination of the seeds demonstrate the existence of physiological triphasic patterns, which include imbibition, ac...
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PMID: 10100948
PDF is available here.
PDF is available here.
Abstract
FT-IR and X-ray analyses were employed to determine the relative ratio of cellulose Ialpha and Ibeta crystalline phases present in each developmental stage of coniferous tracheid cell wall formation. The IR spectra showed that initially the Ialpha phase occupies 50% of the crystalline regions in the...
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PMID: 10077270
PDF is available here.
PDF is available here.
Abstract
Combinatorial chemistry has become a major focus of research activity in the pharmaceutical industry for development new therapeutic compounds. The same techniques could be potentially applied to benefit agricultural and food research. This article reviews the various procedures used in combinatoria...
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PMID: 10335388
PDF is available here.
PDF is available here.
Contact Dermatitis (38)4 1998
Abstract
Analyst (Cambridge UK) (122)5 1997
Abstract
The simultaneous extraction of relatively polar and nonpolar pesticides has been problematic in multiresidue analysis using supercritical fluid extraction (SFE) with carbon dioxide. In fruit and vegetable samples, which typically contain 80-95% water, moisture acts to increase SFE recoveries of many...
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PMID: 9246808
PDF is available here.
PDF is available here.
Abstract
Abstract
A review is made of the potential for environmental and occupational exposure to agrichemicals in South Africa. Data from the farming industry in the Western and Southern Cape regions of South Africa confirm substantial use of a range of insecticides, fungicides, and other agrichemicals. The potenti...
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PMID: 7900727
PDF is available here.
PDF is available here.
Journal of Nutrition (124)4 1994
Abstract
Abstract
Abstract
Several Japanese agencies are required to perform mutagenicity tests according to regulatory guidelines. Although each agency's guidelines address a specific purpose, the experimental principles behind them are similar, and general methodological recommendations have been issued by the Ministry of A...
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PMID: 8419152
PDF is available here.
PDF is available here.
Science of the Total Environment (123-124) 1992
Abstract
Batch experiments were conducted to study the mobility of 14C-labelled dichlorprop in different soil types. Soils rich in organic carbon showed high sorption capacity compared to sand soil with low content of organic C. Soil to soil variations decreased when corrected for different content of organi...
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PMID: 1439739
PDF is available here.
PDF is available here.
Ugeskrift for laeger (147)3 1985
Abstract
Public Health Reviews (13)1-2 1985
Abstract
Vrachebnoe delo ()10 1984
Abstract
Abstract
Abstract
Abstract
Concern about the carcinogenic potential of 1,2-dibromo-3-chloropropane(DBCP) has arisen recently, focusing on six organ sites: stomach, liver, kidney, lung, testes, and skin. To examine the mortality experience of persons potentially exposed, a cohort of 550 employees involved in production and for...
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PMID: 6712284
PDF is available here.
PDF is available here.
Abstract
Ergonomics (25)1 1982
Abstract