Results 31 to 40 of about 6,189,348 (240)

Optimization of Medium Constituents for the Production of Citric Acid from Waste Glycerol Using the Central Composite Rotatable Design of Experiments

open access: yesMolecules, 2023
Citric acid is currently produced by submerged fermentation of sucrose with the aid of Aspergillus niger mold. Its strains are characterized by a high yield of citric acid biosynthesis and no toxic by-products.
Ewelina Ewa Książek   +3 more
doaj   +1 more source

Cellulose modified by citric acid reinforced polypropylene resin as fillers.

open access: yesCarbohydrate Polymers, 2020
The greatest challenge hindering the use of cellulose as a reinforcing filler in polymeric composites is its poor compatibility due to the inherent hydrophilicity of cellulose and the hydrophobic nature of polymeric matrices.
Xinnan Cui   +3 more
semanticscholar   +1 more source

International Price-Fixing Cartels and Developing Countries: A Discussion of Effects and Policy Remedies [PDF]

open access: yes, 2003
The U.S. Department of Justice, the European Commission, and the Organization for Economic Cooperation and Development have all recently voiced concern about international price- fixing cartels. The U.S.
Levenstein, Margaret C.   +2 more
core   +3 more sources

Lead-induced genotoxicity to Vicia faba L.roots in relation with metal cell uptake and initial speciation [PDF]

open access: yes, 2011
Formation of organometallic complexes in soil solution strongly influence metals phytoavailability. However, only few studies deal with the influence of metalspeciation both on plant uptake and genotoxicity. In the present study, Viciafaba seedlings were
Dumat, Camille   +4 more
core   +3 more sources

Exogenous Application of Citric Acid Ameliorates the Adverse Effect of Heat Stress in Tall Fescue (Festuca arundinacea)

open access: yesFrontiers in Plant Science, 2016
Citric acid may be involved in plant response to high temperature. The objective of this study was to investigate whether exogenous citric acid could improve heat tolerance in a cool‐season turfgrass species, tall fescue (Lolium arundinaceum), and to ...
Longxing eHu   +3 more
doaj   +1 more source

Physical, Chemical, and Sensory Properties of Robusta Coffee Effervescent Tablets Formulated in Various Organic Acids

open access: yesCoffee and Cocoa Research Journal, 2022
Coffee effervescent products are an innovation in coffee formulation. The compounds that play a role in effervescent are acids and bases. Type of organic acid give an impact on the effervescent characteristics.
Umar Hafidz Asy'ari Hasbullah   +3 more
doaj   +1 more source

Determination of Predominant Organic Acid Components in Malus Species: Correlation with Apple Domestication

open access: yesMetabolites, 2018
Significant variation in organic acid components was detected in mature fruits of 101 apple accessions using high-performance liquid chromatography. The Malus species predominantly accumulated malic acid and citric acid, whereas wild fruits exhibited ...
Baiquan Ma   +6 more
doaj   +1 more source

Responses of Issatchenkia terricola WJL-G4 upon Citric Acid Stress

open access: yesMolecules, 2022
This study aimed to elucidate the responses of a novel characterized Issatchenkia terricola WJL-G4 against citric acid stress by performing physiological analysis, morphology observation, and structural and membrane fatty acid composition analysis.
Xinyi Liu   +5 more
doaj   +1 more source

Mechanisms of Capsaicin- and Citric-Acid-Induced Cough Reflexes in Guinea Pigs

open access: yesJournal of Pharmacological Sciences, 2005
Previously, we developed a novel coughing model that evoked coughs via citric acid microinjection into the larynx of unanesthetized, unrestrained guinea pigs. Here, we compared the effects of capsaicin and citric acid administration into the larynx using
Motomu Tanaka, Kei Maruyama
doaj   +1 more source

Poly(alkyl methacrylate) tooth coatings for dental care: evaluation of the demineralisation-protection benefit using a time-resolved in vitro method [PDF]

open access: yes, 2011
An in vitro method for the time-resolved quantification of acid-mediated tooth demineralisation has been developed and evaluated against putative non-permanent protective formulations based on a series of poly(alkyl methacrylate)s.
Attin   +47 more
core   +4 more sources

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