Applied; Chemistry

Immobilization of lipases via interfacial activation on hydrophobic supports: Production of biocatalysts libraries by altering the immobilization conditions

Authors: Arana-Pena, S; Rios, NS; Carballares, D; Goncalves, LRB; Fernandez-Lafuente, R

Article.
Catal. Today. vol: 362. page: 0920-5861.
Date: feb-15. 2021.
Doi: 10.1016/j.cattod.2020.03.059.

Abstract:
Lipases A and B from Candida antarctica (CALA, CALB), and those from Candida rugosa (CRL) and Rhizomucor miehei (RML) have been immobilized on octyl agarose beads under 16 different conditions. The activities of the biocatalysts versus different substrates [read more]

Enzymatic synthesis of biolubricants from by-product of soybean oil processing catalyzed by different biocatalysts of Candida rugosa lipase

Authors: Fernandes, KV; Cavalcanti, EDC; Cipolatti, EP; Aguieiras, ECG; Pinto, MCC; Tavares, FA; da Silva, PR; Fernandez-Lafuente, R; Arana-Pena, S; Pinto, JC; Assuncao, CLB; da Silva, JAC; Freire, DMG

Article.
Catal. Today. vol: 362. page: 0920-5861.
Date: feb-15. 2021.
Doi: 10.1016/j.cattod.2020.03.060.

Abstract:
The present work studied the synthesis of biolubricants from by-products of soybean oil processing using the lipase from Candida rugosa [read more]

SBA-15 with short channels for laccase immobilization

Authors: Khanmohammadi, F; Molina, MA; Blanco, RM; Azizi, SN; Marquez-Alvarez, C; Diaz, I

Article.
Microporous Mesoporous Mat.. vol: 309. page: 1387-1811.
Date: DEC 15. 2020.
Doi: 10.1016/j.micromeso.2020.110527.

Abstract:
Ordered Mesoporous Materials offer wide application areas in chemistry and biotechnology. SBA-15 displays hexagonal arrangement of parallel unidirectional channels, where pore size and particle morphology are the controlling parameters when used as enzyme support [read more]

Immobilization of gold on short -channel mesoporous SBA-15 functionalized with thiol and hydrophobic groups for oxidation reactions

Authors: Valdes, RD; Agundez, J; Marquez-Alvarez, C; Perez-Pariente, J

Article.
Catal. Today. vol: 354. page: 0920-5861.
Date: sep-12. 2020.
Doi: 10.1016/j.cattod.2019.09.014.

Abstract:
Nanosized gold entities immobilized on short -channel SBA -15 mesoporous materials functionalized solely with mercaptopropyl groups and together with propyl and octyl moieties have been prepared following a two-steps procedure. These materials have been used as catalysts for the [read more]

Accordion-like effect of flexible organic structure-directing agents in the synthesis of ferrierite zeolite

Authors: Almeida, RKS; Perez-Pariente, J; Gomez-Hortiguela, L

Article.
Microporous Mesoporous Mat.. vol: 300. page: 1387-1811.
Date: jun-15. 2020.
Doi: 10.1016/j.micromeso.2020.110149.

Abstract:
Ferrierite zeolite was synthesized by a co-structure-directing route using a highly flexible diquaternary ammonium cation (N,N’-bis-triethylpentanediyldiammonium) as a structure directing agent in combination with tetramethylammonium as a small co-structure-directing agent. Strong alterations of the C-13 NMR bands of the bulky organic [read more]

Mineralizer effects on the physicochemical and catalytic properties of AlMCM-41 mesoporous materials

Authors: Ng, EP; Abdullahi, H; Khoerunnisa, F; Maireles-Torres, P; Lee, HL; Adam, F; Ling, TC; Wong, KL

Article.
Microporous Mesoporous Mat.. vol: 297. page: 1387-1811.
Date: may-01. 2020.
Doi: 10.1016/j.micromeso.2020.110016.

Abstract:
The effects of various alkali metal hydroxide mineralizers (LiOH, NaOH, KOH and CsOH) on the formation of AlMCM-41 mesoporous materials were investigated. The ordering of mesostructure was reduced when stronger base [read more]

Synthesis and Characterization of Aluminophosphates Type-5 and 36 Doubly Modified with Si and Zn and Its Catalytic Application in the Reaction of Methanol to Hydrocarbons (MTH)

Authors: Ruiz, MG; Casados, DAS; Pliego, JA; Alvarez, CM; de Andres, ES; Tartalo, DS; Sanchez-Sanchez, M; Casas, MG

Article; Early Access.
Top. Catal.. vol: . page: 1022-5528.
Date: . .
Doi: 10.1007/s11244-020-01266-3.

Abstract:
This paper presents a study of the synthesis of AlPO4-5 and AlPO4-36 materials doubly substituted by Si and Zn, as acid function and aromatizing function, respectively. The physicochemical properties [read more]

Advantageous enzyme selective extraction process of essential spirulina oil

Authors: Verdasco-Martin, CM; Diaz-Lozano, A; Otero, C

Article; Proceedings Paper.
Catal. Today. vol: 346. page: 0920-5861.
Date: APR 15. 2020.
Doi: 10.1016/j.cattod.2019.02.066.

Abstract:
Spirulina is an important source of metabolites and nutrients. It grows rapidly with low land requirements, and it is an ideal feedstock for implementation of a biofactory of bioactive products. A Part of intracelular bio-components are not extracted with [read more]

Guaiacol hydrodeoxygenation over Ni2P supported on 2D-zeolites

Authors: Gutierrez-Rubio, S; Berenguer, A; Prech, J; Opanasenko, M; Ochoa-Hernandez, C; Pizarro, P; Cejka, J; Serrano, DP; Coronado, JM; Moreno, I

Article; Proceedings Paper.
Catal. Today. vol: 345. page: 0920-5861.
Date: APR 1. 2020.
Doi: 10.1016/j.cattod.2019.11.015.

Abstract:
Different 2D zeolites, namely lamellar ZSM-5 (L-ZSM-5), the corresponding silica pillared ZSM-5 (PI-ZSM-5) and an MCM-22 sample, were investigated as nickel phosphide supports and evaluated [read more]

Performance of three different cations based on imidazolium ring as structure directing agents in the synthesis of aluminophosphates and silicoaluminophosphates microporous materials

Authors: Almeida, G; Variani, YM; Gomez-Hortiguela, L; Mercury, JMR; Rojas, A

Article.
Microporous Mesoporous Mat.. vol: 294. page: 1387-1811.
Date: mar-01. 2020.
Doi: 10.1016/j.micromeso.2019.109861.

Abstract:
In this work three different cations based on imidazolium rings, 2-ethyl-1,3,4-trimethylimidazolium (2E134TMI), 1,2,3-triethyl-4-methylimidazolium (123TE4MI) and 1,2,3-triethylimidazolium (123TEI), were employed as structure directing agents (SDA) for the synthesis of aluminophosphate and silicoaluminophosphate microporous materials. The cations allowed the [read more]

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