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Detection of extracellular enzymatic activity in microorganisms isolated from waste vegetable oil contaminated soil using plate methodologies
From a total of 100 strains isolated from waste vegetable oil contaminated soil, 38 bacterial and 14 fungi strains that presented positive lipolytic activity were obtained through Rhodamine B Agar 0.02% w/v as a screening method, establishing these techniques as suitable and fast approaches for detection and semi-quantification of extracellular enzymatic activity.
Formation of Long-Chain and MacrocyclicCompounds during Catalytic Conversion of Geraniolon Micro- and Micro-Mesoporous BEA-Type Zeolite
The present paper studies catalytic transformations of the terpene alcohols used in the perfumery industry, transformation of geraniol on microand micro-mesoporous BEA-type zeolites. Experiments were…
Mechanical Property and Biodegradability of Cast Films Prepared from Blends of Oppositely Charged Biopolymers
Biodegradable cast films of about 50 μm thickness were fabricated by blending oppositely charged biopolymers such as anionic starch–chitosan, and cationic starch–pectin. The tensile strength and…
Novel toxicity of native and HD Bacillus thuringiensis strains against to the sugarcane borer Diatraea saccharalis
- N. M. Rosas-García, B. Pereyra-Alférez, K. Niño, Luis J. Gal´n-Wong, L. H. Morales-Ramos
- 1 August 2004
Several Bacillus thuringiensis strains (native and from the Howard Dulmage collection) were tested and Immunoblotting revealed that all strains cross-reacted with an antiCry1A, and only the HD-551 gave a positive signal withAntiCry1B polyclonal antisera.
Extruded Plastics Containing Starch and Chitin: Physical Properties and Evaluation of Biodegradability
Efficiency Evaluation on the Influence of Washing Methods for Biodiesel Produced from High Free Fatty Acid Waste Vegetable Oils through Selected Quality Parameters
- Eugenia Guadalupe Ortiz Lechuga, Mauro Rodríguez Zúñiga, K. Niño
- Environmental Science
- 30 November 2020
The increasing use of alternative energy sources has brought benefits like the recycling of waste vegetable oils (WVO) for biodiesel production; however, this practice presents challenges derived…
Antimicrobial activity of Thymus vulgaris, Matricaria chamomilla, Croton lechleri, Calendula officinalis L., Julliana adstringens Schl against periodontophatogen microorganisms
Response Surface Methodology (RSM) for production of xylanases and laccases using spent coffee grains and spent grains as substrates in solid state fermentation.
In vitro tests of antifungal activity of plants used in Mexican traditional medicine