Results 21 to 30 of about 663,482 (304)

Acceleration of Mechanistic Investigation of Plant Secondary Metabolism Based on Computational Chemistry

open access: yesFrontiers in Plant Science, 2019
This review describes the application of computational chemistry to plant secondary metabolism, focusing on the biosynthetic mechanisms of terpene/terpenoid, alkaloid, flavonoid, and lignin as representative examples.
Hajime Sato   +4 more
doaj   +1 more source

Biomassa em aula prática de Química Orgânica Verde: cravo-da-índia como fonte simultânea de óleo essencial e de furfural

open access: yesQuímica Nova, 2012
This work presents an optimized integrated experiment for isolation of clove bud essential oil, rich in eugenol, and subsequent utilization of the solid residue for furfural synthesis.
Silvio Cunha   +4 more
doaj   +1 more source

Emission factors for open and domestic biomass burning for use in atmospheric models [PDF]

open access: yes, 2010
Biomass burning (BB) is the second largest source of trace gases and the largest source of primary fine carbonaceous particles in the global troposphere. Many recent BB studies have provided new emission factor (EF) measurements.
Akagi, S. K.   +7 more
core   +3 more sources

Column studies to assess behavior of fipronil in sandy loam soil

open access: yesThe Indian Journal of Agricultural Sciences, 2019
On the basis of results, it can be concluded that residues of fipronil in leachates were below detectable level (BDL) of 0.003 mg/L concentration at both doses.
INDU CHOPRA, BEENA KUMARI, REENA CHAUHAN
doaj   +1 more source

Assembly of a Library of Pel-Oligosaccharides Featuring α-Glucosamine and α-Galactosamine Linkages

open access: yesFrontiers in Chemistry, 2022
Pseudomonas aeruginosa, a pathogenic Gram-negative bacterium for which currently antibiotic resistance is posing a significant problem and for which no vaccines are available, protects itself by the formation of a biofilm.
Yongzhen Zhang   +5 more
doaj   +1 more source

Harnessing a catalytic lysine residue for the one-step preparation of homogeneous antibody-drug conjugates

open access: yesNature Communications, 2017
Current strategies for producing antibody-drug conjugates often rely on inefficient conjugation chemistry or on generating mutations in the antibody sequence.
Alex R. Nanna   +8 more
doaj   +1 more source

Prevention and control of contaminants of industrial processes and pesticides in the poultry production chain [PDF]

open access: yes, 2002
The reduction in levels of organochlorine pesticide residues in food of animal origin in the past 30 years has been achieved especially by controlling entrance via the feed chain.
Kan, C.A.
core   +4 more sources

QuEChERS Method Followed by Solid Phase Extraction Method for Gas Chromatographic-Mass Spectrometric Determination of Polycyclic Aromatic Hydrocarbons in Fish

open access: yesInternational Journal of Analytical Chemistry, 2015
A gas chromatography equipped with mass spectrometer (GCMS) method was developed and validated for determination of 16 polycyclic aromatic hydrocarbons (PAHs) in fish using modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) method for ...
Mona Khorshid   +3 more
doaj   +1 more source

Ab initio coordination chemistry for nickel chelation motifs. [PDF]

open access: yesPLoS ONE, 2015
Chelation therapy is one of the most appreciated methods in the treatment of metal induced disease predisposition. Coordination chemistry provides a way to understand metal association in biological structures.
R Jesu Jaya Sudan   +2 more
doaj   +1 more source

Dual targeting of the class V lanthipeptide antibiotic cacaoidin

open access: yesiScience, 2023
Summary: Antibiotic resistance is reaching alarming levels, demanding for the discovery and development of antibiotics with novel chemistry and mechanisms of action.
Julia P. Deisinger   +9 more
doaj   +1 more source

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