Aqueous two-phase systems (ATPSs) are composed of two immiscible aqueous phases that are in equilibrium. As one of the separation methods, aqueous two-phase extraction (ATPE) has advantages of biocompatibility, process integration capability, and large-scale feasibility1. As far as we know, ATPE has been used for the separation of proteins2, enzymes3–4, organic acids5–6, and so on. Based on the...

Conformational analysis of the experimentally recorded IR absorption spectra propanol in a gaseous state and low-temperature argon matrix at 20 K 35 was carried out for different spectral ranges. It showed that conformational composition samples gas isolation is different. In propanol, Gt conformers predominate, while most energetically favorable form Tg conformer, which prevails percentage bot...

The activities of ligninperoxidases from Penicillium citrinum MTCC 3565, Fusarium oxysporum MTCC 3379 and Aspergillus terreus MTCC 3374 have been assayed and the enzymatic characteristics like Km, pH and temperature optima using n-propanol as the substrate have been reported. The results suggest that n-propanol can substitute veratryl alcohol as substrate for assaying ligninperoxidase activitie...

Cyclic voltammetry is an efficient means of analyzing the catalytic reduction of H2O2 at immobilized horseradish peroxidase (HRP)-Eastman AQ 55 electrodes in the presence of 1,1'-ferrocenedimethanol as a one-electron reversible cosubstrate. This system was employed to study the kinetics of the reduction of compound II of HRP in a number of organic solvents. An electrocatalytic response was dete...

Biofuels synthesized from renewable resources are of increasing interest because of global energy and environmental problems. We have previously demonstrated production of higher alcohols from Escherichia coli using a 2-keto acid-based pathway. Here, we took advantage of the growth phenotype associated with 2-keto acid deficiency to construct a hyperproducer of 1-propanol and 1-butanol by evolv...

Establishment of hydrophilic organic/salt-containing aqueous two-phase system and purification of salvianolic acid B from crude extract of S. miltiorrhiza by counter-current chromatography with said system were studied. Ethanol and n-propanol were selected to constitute biphasic systems with ammonia sulphate, sodium chloride and phosphate separately, and related system characteristics including...

Ultraviolet light-induced free radical alkylation with 2-propanol or D-ribose, initiated with di-tert-butyl peroxide, of poly (G), poly (U20G), and poly(A) led to the substitution of the appropriate group for the H-8 atom of the purines and addition across the 5,6-double bond of the pyrimidines. The alkylated polynucleotides were subjected to nucleolytic digestion with several nucleases. T1-RNa...

The local anesthetic activities of 1-(morpholino or piperidino)-2-propanol derivatives were investigated. These activities were observed with nerve trunk anesthesia, rabbit's corneal anesthesia and intradermal injection anesthesia. Among these propanol derivatives, No. 24 and No. 25 which possess thioether-type sulfur were the most active and the effective potency was enhanced by increasing the...

Studies on the Food Additive Propyl Gallate: Synthesis, Structural Characterization, and Evaluation of the Antioxidant Activity Jorge Garrido, E. Manuela Garrido, and Fernanda Borges* Departamento de Engenharia Química, Instituto Superior de Engenharia do Porto, 4200-072 Porto, Portugal CIQUP, Departamento de Química e Bioquímica, Faculdade de Cîencias, Universidade do Porto, 4169-007 Porto, Po...

This study is focused on investigating the influence of the parameters for dechlorination of polychlorinated biphenyls (PCB) using electron beam. The dechlorination process was studied using concentrated solutions of polychlorinated biphenyls. 2-propanol with/without water, ethanol, 1,2,3,4-tetrahydronaphthalin and tetrahydrofurane were used as solvents. The results of the research showed that ...