نتایج جستجو برای: 25 non organic acids

تعداد نتایج: 2021805  

Fateme Derakhshan-Panah was born in Hamedan (Iran) in 1987. She received her B.S. in Pure Chemistry (2009) and M.S. in Organic Chemistry (2011) from Bu-Ali Sina University, Iran. She is currently working towards her Ph.D. under the supervision of Professor M. A. Zolfigol. Her research interest is organic methodology especially the application of solid acids and ionic liquids in organic synthesis.

Journal: :The Journal of experimental biology 2010
B J Barth R S Wilson

The low pH of naturally acidic aquatic environments is the result of soft-water with low buffering capacity and high concentrations of natural organic acids. Our current understanding of the influence of pH on aquatic organisms is largely limited to laboratory studies conducted under controlled conditions with little incorporation of these organic acids. Recent studies suggest natural organic a...

2000
Shaocai Yu

Although it is believed that organic aerosols play a key role in cloud nucleation and make an Ž . important contribution to the cloud condensation nuclei CCN population, their specific species Ž remain poorly characterized. This paper reviews the current knowledge of organic acids mainly . formic, acetic, pyruvic and oxalic acids . Without specification, organic acids in this paper refer to the...

Journal: :journal of food biosciences and technology 2014
b. daramola

a preliminary study on statistical modelling of a process for depolymerisation of cassava non-starch carbohydrate using halide salt assisted phosphoric and pyruvic acids were accomplished. the effects of three independent variables namely; acid concentration, potassium iodide salt and duration were studied using the central composite rotatable design on hydrolysis of the cassava non-starch carb...

Journal: :iranian journal of catalysis 2013
toktam faal rastegar

toktam faal rastegar was born in quchan (iran). she completed her b.sc. in chemistry in 2005 from ferdowsi university, mashhad. she was graduated from m.sc. degree in organic chemistry from bu-ali sina university (2008), hamadan, iran. she is currently organic chemistry ph.d student under the supervision of prof. a. khazaei and prof. m.a. zolfigol in department of chemistry at bu-ali sina unive...

Journal: :applied food biotechnology 0
khan nadiya jan santlongowal institute of engineering and technology, punjab, india. abhishek dutt tripathi center of food science and technology, bhu, varanasi, u.p, india. shubhendra singh center of food science and technology, bhu, varanasi, u.p, india. diksha surya center of food science and technology, bhu, varanasi, u.p, india. surendra prasad singh center of food science and technology, bhu, varanasi, u.p, india.

background and objective: sorbitol is a non-toxic and slightly hygroscopic compound with different applications. zymomonas mobiles produces sorbitol from sucrose or mixtures of glucose and fructose (formation is coupled with the dehydrogenation of glucose to glucono-δ- lactone). recombinant zymomonas mobilis may produce sorbitol and gluconic acid from glucose and fructose using different divale...

ژورنال: علوم آب و خاک 2018

The rate of metal transfer from the solid phase to solution is an important factor governing their concentration in the soil solution and its availability. In this research, the release rate of Zn in contaminated soils from Isfahan was studied using solutions citric acid, oxalic acid and malic acid 0/01 M during the period of 2 - 504 hours and its relationship with soil characteristics was inve...

Journal: :Annals of clinical and laboratory science 1991
D T Forman

Clinical signs and symptoms of organic acidurias are usually subtle and non-specific. Laboratory evaluation, therefore, is usually the only conclusive way to reach a definitive diagnosis. Defects of amino acid catabolism generally caused by diminished activity or complete absence of specific enzymes usually occurs at the later stages of a pathway and results in organic aciduria. Most of these a...

Journal: :Journal of separation science 2010
Vanda Pereira José S Câmara Juan Cacho José C Marques

This article proposes a simple and sensitive HPLC method with photo-diode array detection for the analysis of organic acids, monomeric polyphenols and furanic compounds in wine samples by direct injection. The chromatographic separation of 8 organic acids, 2 furans and 22 phenolic compounds was carried out with a buffered solution (pH 2.70) and acetonitrile as mobile phases and a difunctionally...

2002
J. J. Dibner

Approvals for the use of nontherapeutic antibiotics in animal feed are fast disappearing worldwide. The primary effect of antibiotics is antimicrobial; all of the digestibility and performance effects can by explained by their impact on the gastrointestinal microflora. Among the candidate replacements for antibiotics are organic acids, both individual acids and blends of several acids. Like ant...

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