Results 41 to 50 of about 2,561,752 (294)

Separation and determination of D-malic acid enantiomer by reversed-phase liquid chromatography after derivatization with (R)-1-(1-naphthyl) ethylamine

open access: yesBrazilian Journal of Pharmaceutical Sciences, 2023
L-Malic acid is the Active Pharmaceutical Ingredient of the latest generation of compound electrolyte injection (STEROFUNDIN ISO, Germany) and plays a very important role in the rescue of critically ill patients.
Xuejiao Mei, Dingqiang Lu, Xiangping Yan
doaj   +1 more source

Determination and correlation analysis of tobacco non-volatile organic acids and pH

open access: yesShipin yu jixie, 2022
Objective: To explore the effects of organic acids on tobacco pH and flue gas pH. Methods: 34 kinds of single-grade tobacco and 11 kinds of finished cigarettes were taken as the research objects, and their non-volatile organic acids, tobacco pH, and the ...
PIAO Yong-ge   +6 more
doaj   +1 more source

PREFERENTIAL SOLVATION OF L-ARABINOSE AND DL-MALIC ACID IN ETHANOL + WATER MIXTURES [PDF]

open access: yes, 2017
By using the inverse Kirkwood-Buff integrals (IKBI) method, the differences between the local, around the solute and the bulk mole fractions of both solvents in saturated solutions of L-arabinose (compound 3) and DL-malic acid (compound 3) in ethanol ...
Daniel M. Jiménez   +5 more
core   +1 more source

A COMPARATIVE EVALUATION OF THE STABILITY OF APPLE ACID COMPLEXES AND SOYA OIL PHOSPHOLIPIDS WITH IRON AND COPPER IONS

open access: yesНовые технологии, 2020
The effectiveness of hydration, which is the first stage of refining vegetable oils, depends primarily on the ability of the hydrating agent to convert nonhydratable phospholipids into their hydratable forms.
L. A. Marchenko   +3 more
doaj   +1 more source

Acetate as substrate for l-malic acid production with Aspergillus oryzae DSM 1863

open access: yesBiotechnology for Biofuels, 2021
Background Microbial malic acid production is currently not able to compete economically with well-established chemical processes using fossil resources. The utilization of inexpensive biomass-based substrates containing acetate could decrease production
Aline Kövilein   +2 more
doaj   +1 more source

Effect of Low-Molecular Organic Acids on the Migration Characteristics of Nickel in Reclaimed Soil from The Panyi Mine Area in China

open access: yesToxics, 2022
This study investigated the effects of low molecular weight organic acids (citric acid and malic acid) on the migration properties of nickel in soil. A reclaimed soil sample was obtained from the Panyi Mine in Huainan City, China.
Yonghong Zheng   +7 more
doaj   +1 more source

Structural Characteristics and In Vitro Digestibility of Malic Acid-Treated Corn Starch with Different pH Conditions

open access: yesMolecules, 2019
The objective of this study was to investigate the influence of pH value on the in vitro digestibility of malic acid-treated corn starch in relation to its structural properties.
Chang Joo Lee   +3 more
doaj   +1 more source

Role for malic enzyme, pyruvate carboxylation, and mitochondrial malate import in glucose-stimulated insulin secretion

open access: yes, 2009
Pyruvate cycling has been implicated in glucose-stimulated insulin secretion (GSIS) from pancreatic beta-cells. The operation of some pyruvate cycling pathways is proposed to necessitate malate export from the mitochondria and NADP(+)-dependent ...
Gray, Joshua P.   +5 more
core   +1 more source

CHANGES IN THE CHARDONNAY CLONES ORGANIC ACIDS RATIO DURING MATURATION TIME [PDF]

open access: yesPoljoprivreda, 2007
Tartaric and malic acids are essential constituents of grape must and wine, contributing directly to its taste as well as balancing with other flavors. High temperature conditions during maturation time can strongly affect malic acid/tartaric acid ratio ...
Ana Jeromel   +4 more
doaj  

PbPH5, an H+ P-ATPase on the tonoplast, is related to malic acid accumulation in pear fruit

open access: yesJournal of Integrative Agriculture, 2022
Organic acid content is one of the most important factors influencing fruit flavors. The predominant organic acid in most pear cultivars is malic acid, but the mechanism controlling its accumulation remains unclear.
Jun-xing SONG   +8 more
doaj   +1 more source

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