Results 11 to 20 of about 78,114 (297)

Methanol-driven esterification of volatile short-chain fatty acids in thermal desorption-based analysis [PDF]

Communications Chemistry
Breath volatile organic compound analysis can non-invasively detect diseases, with short-chain fatty acids (SCFAs) identified as key biomarkers. However, SCFA quantification is technically challenging due to chemical instability during thermal desorption
Philip Kwan Hung Leung, Alson Hubert Kwongyiu Wong, Yiling Ma, Jungmin Jen Yoo, María Bajo-Fernández, Valerio Converso, Aaron Parker, Patrik Spanel, George Bushra Hanna, Ilaria Belluomo   +9 more
doaj   +2 more sources

Esterification of citric acid with locust bean gum [PDF]

Heliyon, 2019
Esterification of citric acid (CA) with locust bean gum (LBG) was prepared by hydrochloric acid (HCl) as a catalyst and UV irradiation (254 nm) as esterification energy. This study aims to determine the best conditions of esterification. Other than that,
Wuryanto Hadinugroho, Suwaldi Martodihardjo, Achmad Fudholi, Sugeng Riyanto   +3 more
doaj   +2 more sources

Ion-exchange Resin Catalyzed Esterification of Lactic Acid with Isopropanol: a Kinetic Study [PDF]

Bulletin of Chemical Reaction Engineering & Catalysis, 2011
The kinetic behavior of esterification of lactic acid with isopropanol over an acidic cation exchange resin, Amberlyst 15, was studied under isothermal condition. Isopropyl lactate synthesized in this reaction is an important pharmaceutical intermediate.
Amrit Pal Toor, Mamta Sharma, Sakshi Thakur, Ravinder K. Wanchoo   +3 more
doaj   +2 more sources

Isolation of ethanol- and acid-resistant Acinetobacter baumannii from daqu for efficient esterification of acidic Huangshui [PDF]

Frontiers in Microbiology
A large amount of highly acidic wastewater, known as Huangshui, is produced during liquor brewing. To improve its utilization rate and achieve resource recovery of liquor by-products.
Jiacheng Li, Yuan Zou, Yumei Jiang, Fei Guo, Lijuan Yang, Lijuan Yang   +5 more
doaj   +2 more sources

ENHANCING THE ESTERIFICATION CONVERSION USING PERVAPORATION [PDF]

Journal of Engineering Science and Technology, 2018
Coupling of a pervaporation membrane unit with an esterification reactor has been undertaken with a view to improve the overall efficiency of the esterification process through removal of one of the products.
ELHAM ELZANATI, HEBA ABDALLAH, EMAN FARG, REEM S. ETTOUNEY, MAHMUD A. EL-RIFAI   +4 more
doaj   +1 more source

Process intensification approach for design and optimization of biodiesel production from palm fatty acid distillate

Biotechnology Reports, 2021
Design of the biodiesel production from palm fatty acid distillate (PFAD) using process intensification approach is studied in technical, economic and environmental view points.
Karittha Im-orb, Amornchai Arpornwichanop, Lida Simasatitkul   +2 more
doaj   +1 more source

Basal re-esterification finetunes mitochondrial fatty acid utilization

Molecular Metabolism, 2023
Objective: Emerging evidence suggest the existence of constant basal lipolysis and re-esterification of a substantial fraction of thus liberated fatty acids.
Anand Kumar Sharma, Tongtong Wang, Alaa Othman, Radhika Khandelwal, Miroslav Balaz, Salvatore Modica, Nicola Zamboni, Christian Wolfrum   +7 more
doaj   +1 more source

Impregnated Zeolite as Catalyst in Esterification Treatment from High Free Fatty Acids Palm Oil Mill Effluent

Jurnal Rekayasa Kimia & Lingkungan, 2021
Although Palm Oil Mill Effluent (POME) can be used as a raw material for biodiesel production, the POME contains an excessive amount of Free Fatty Acids (FFA), necessitating a preliminary process and esterification.
Ika Kusuma Nugraheni, Nuryati Nuryati, Anggun Angkasa Bela Persada, Triyono Triyono, Wega Trisunaryanti   +4 more
doaj   +1 more source

Study of the reaction of olefins with acetic acid [PDF]

E3S Web of Conferences, 2023
The purpose of this work is to study the esterification of liquid olefins with acetic acid in the presence of catalysts and to study the structure and properties of the synthesized saturated esters.
Mahmudova F., Maksumova A., Matkarimova N., Tadjieva Sh., Latipova I.   +4 more
doaj   +1 more source

Improved Esterification of Citric Acid and n-Butanol Using a Dense and Acid-Resistant Beta Zeolite Membrane

Membranes, 2022
In this work, a dense and acid-resistant beta zeolite membrane was applied to improve the esterification of citric acid and n-butanol, for the first time.
Zhengquan Yang, Mingyu Peng, Yu Li, Xiaowei Wu, Tian Gui, Yuqin Li, Fei Zhang, Xiangshu Chen, Hidetoshi Kita   +8 more
doaj   +1 more source