Results 241 to 250 of about 9,352,841 (305)

Malic acid-enhanced chitosan hydrogel beads (mCHBs) for the removal of Cr(VI) and Cu(II) from aqueous solution

Chemical Engineering Journal, 2018
Chitosan hydrogel beads (CHBs) have displayed prominent advantages as adsorbents, including easy separation after adsorption. To further increase their adsorption capacity, CHBs were modified with malic acid and further freeze-dried.
Yizhong Zhang, Shan-yang Lin, Junqin Qiao, D. Kołodyńska, Yongming Ju, Zhang Manwen, Mei Cai, Dongyang Deng, D. Dionysiou   +8 more
semanticscholar   +1 more source

Structure of malic acid chloralide

Recueil des Travaux Chimiques des Pays-Bas, 1965
AbstractThe structure of malic acid chloralide was studied by N.M.R. and found to be a 1,3‐dioxolan‐4‐one.
Maximo Baron, Donald P. Hollis
openaire   +1 more source

Biochemical conversion of biodiesel by-product into malic acid: A way towards sustainability.

Science of the Total Environment, 2019
Crude glycerol, one of the ever-growing by-product of biodiesel industry and is receiving the closest review in recent times because direct disposal of crude glycerol may emerge ecological issues.
B. Bharathiraja, I. A. Selvakumari, J. Jayamuthunagai, R. P. Kumar, Sunita Varjani, A. Pandey, E. Gnansounou   +6 more
semanticscholar   +1 more source

Current advance in biological production of malic acid using wild type and metabolic engineered strains.

Bioresource Technology, 2018
Malic acid (2-hydroxybutanedioic acid) is a four-carbon dicarboxylic acid, which has attracted great interest due to its wide usage as a precursor of many industrially important chemicals in the food, chemicals, and pharmaceutical industries.
Zhongxue Dai, Hui Zhou, Shangjie Zhang, Honglian Gu, Qiao Yang, Wenming Zhang, W. Dong, Jiangfeng Ma, Yan Fang, M. Jiang, F. Xin   +10 more
semanticscholar   +1 more source

Preparation of α-CaSO4·½H2O with tunable morphology from flue gas desulphurization gypsum using malic acid as modifier: A theoretical and experimental study.

Journal of Colloid and Interface Science, 2018
Huge amount of flue gas desulphurization (FGD) gypsum not only occupies the farmland but also causes severe pollution to the surrounding environment. The most effective way to achieve a high-value utilization of FGD gypsum is to prepare short columnar α ...
Qingjun Guan, Yue-hua Hu, Honghu Tang, Wei Sun, Zhiyong Gao   +4 more
semanticscholar   +1 more source

D-malic acid production from DL-malic acid by enantiospecific assimilation with Acinetobacter lwofii

Biotechnology Letters, 1993
Acinetobacter lwofii ATCC 9036 assimilated L-malic acid eantiospecifically and left D-malic acid when grown in a medium containing DL-malic acid. The optical purity of the D-malic acid isolated from the culture filtrate was 100%. When the organism was incubated at 26°C, 220 r.p.m.
Masayo Miyama, Kiyoshi Nakayama
openaire   +1 more source

Recent advances in microbial production of L-malic acid

Applied Microbiology and Biotechnology, 2022
Naxin Wu, Jiahui Zhang, Yaru Chen, Qing Xu, P. Song, Yingfeng Li, Keqaing Li, Hao Liu   +7 more
semanticscholar   +1 more source

Synthesis and Physical and Thermodynamic Properties of Lactic Acid and Malic Acid-Based Natural Deep Eutectic Solvents

Journal of Chemical and Engineering Data, 2018
In this paper, four natural deep eutectic solvents (NADES) systems were prepared at specific molar ratios, La:Bet (2:1) (lactic acid/betaine), La:Hist (9:1) (lactic acid/histidine), Ma:Bet:H2O (1:2:3) (malic acid/betaine/water) and Ma:Bet:Pro:H2O (1:1:1 ...
Vânia I. B. Castro, Francisca Mano, R. Reis, Alexandre Paiva, A. R. Duarte   +4 more
semanticscholar   +1 more source

Malic acid production from biodiesel derived crude glycerol using morphologically controlled Aspergillus niger in batch fermentation.

Bioresource Technology, 2018
In the present investigation, the effects of crude glycerol concentration, spore inoculum concentration, yeast extract concentration and shaking frequency on seed morphology of Aspergillus niger PJR1 on malic acid production were investigated and ...
J. Iyyappan, G. Baskar, B. Bharathiraja, R. Saravanathamizhan   +3 more
semanticscholar   +1 more source

Efficient synthesis of L-malic acid by malic enzyme biocatalysis with CO2 fixation

Bioresource Technology
The malic enzyme (ME) catalyzes the synthesis of L-malic acid (L-MA) from pyruvic acid and CO2 with NADH as the reverse reaction of L-MA decarboxylation. Carboxylation requires excess pyruvic acid, limiting its application. In this study, it was determined that CO2 was the carboxyl donor by parsing the effects of HCO3- and CO2, which provided a basis ...
Jianping Shi, Yan Fan, Xinshan Jiang, Xianglong Li, Shang Li, Yanbin Feng, Song Xue   +6 more
openaire   +2 more sources