Results 21 to 30 of about 9,352,841 (305)

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

Identification of Malic Acid from Yeast [PDF]

open access: yesJournal of Bacteriology, 1968
Evidence indicated an accumulation of l -malic acid in the synthetic growth medium of both lysine auxotrophs and wild-type yeast. Malic acid was isolated from growth experiments and was identified by paper and column chromatography, by comparison of infrared spectra with authentic l -malic ...
J K, Bhattacharjee   +2 more
openaire   +2 more sources

Malic acid production from renewables: a review

open access: yes, 2020
Malic acid derived from fossil resources is currently applied in the food and beverage industries with a medium global production capacity. However, in the transition from a fossil‐based to a bio‐based economy, biotechnologically produced l‐malic acid ...
Aline Kövilein   +3 more
semanticscholar   +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

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

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

Adsorption of tartaric acid and malic by active carbons

open access: yesOENO One, 1995
Adsorption of tartaric acid and malic acid by active carbons bas been tested with six samples of carbons. At acid pH ; the adsorbed amounts of tartaric acid and of malic acid are practically the same.
L. Robert   +4 more
doaj   +1 more source

Influence of pH, malic acid and glucose concentrations on malic acid consumption by Saccharomyces cerevisiae [PDF]

open access: yesApplied Microbiology and Biotechnology, 1995
Malic acid consumption by Saccharomyces cerevisiae was studied in a synthetic medium. The extent of malic acid degradation is affected by its initial concentration, the extent and the rate of deacidification increased with initial malate concentration up to 10 milligrams.
Delcourt, F.   +3 more
openaire   +6 more sources

Esterification of malic acid on various catalysts

open access: yesТонкие химические технологии, 2020
Objectives. The study aims to identify the optimal choice of an effective catalyst for the esterification of malic acid to produce esters of high purity. Methods. To determine the qualitative and quantitative composition of reaction masses, the following
N. S. Kuzmina   +2 more
doaj   +1 more source

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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