In the search for a renewable energy source that could replace petroleum and other nonrenewable energy sources, pyrolysis of biomass is a hopeful alternative and pretreatment could further improve its potential. There are several possible routes for pretreating lignocellulosic biomass, but many need further refining before becoming economical. The main obstacle for the conversion of biomass to ...

The changes in cell surface properties associated with alkali stress can significantly disrupt cell metabolism and structures, preventing effective interactions between bacterial cells and their environment. Listeria monocytogenes is known to display an adaptive response to alkali stress that enhances its capacity to more effectively survive subsequent severe alkali challenge. In this study, we...

In the context of increasing pressure regarding sustainable utilization food waste in a circular economy, one trends is their biological transformation, through anaerobic digestion, into biogas as renewable source energy. We presented physical-chemical properties main categories from different sources: dairy, meat, and poultry, fish, fruit vegetable, cereal bakery, brewing winery industries, ot...


 Red beets in Mexico are used the colorants industry, but their juice bagasse (RBB) can be carbohydrates for ethanol production. The present study aims to pretreatment of red beet using acid (H2SO4) and alkali (NaOH) improve availability sugars. Also, describe quantitatively hydrolysates microbial growth, substrate consumption, production with simulation data kinetics logistic, Pirt, Lued...

This study investigates the integration of a biomass mechanical pretreatment technology and hydrothermal liquefaction for valorization biopulp; organic fraction municipal solid waste. A preliminary screening conditions was carried out to investigate impact temperature (350 400 °C) presence alkali catalyst (K2CO3) during conversion biopulp. Sub-critical were noticed have significant positive on ...

common drying systems, including hot air convection, infrared, vacuum and ir-convective were employed to investigate and analyze the drying process of mulberry fruits. to evaluate the effect of pretreatment on the drying phenomenon, samples were pretreated by being subjected to: microwaves, chemical preparation, mechanical as well as blanching approaches. results revealed that the microwave pre...

Ground granulated blast furnace slag (ggbs), can reduce the alkali load in concrete, despite its relatively high alkali content. Most research has been devoted to the efficacy of slag with an alkali content of less than 1.0% and this is reflected in guidance documents. A comparative assessment was made of the effect, if any, of the alkali level of ggbs on potential alkali-silica reactivity. Exp...

This work aims at providing a better understanding of the mechanical properties of the reaction rim in the alkali-silica reaction. The elastic modulus of the calcium alkali silicate constituting the reaction rim, which is formed at the interface between alkali silicate and Ca(OH)₂ in a chemically-idealized system of the alkali-silica reaction, was studied using nano-indentation. In addition, th...

This work demonstrates that the coupling of supercritical carbon dioxide extraction with pyrolysis is an effective method for removal extractives from forestry residues and generation solid char different properties remaining wood fractions. Extraction needles stumps shows greater yields resin acids, terpenes, steroids other derivatives than pinewood bark, cones branches. The both non-treated s...

Biorefinery, which utilizes carbon-neutral biomass as a resource, is attracting attention significant alternative in modern society confronted with climate change. In this study, spent coffee grounds (SCGs) were used the feedstock for lactic acid fermentation. order to improve sugar conversion, alkali pretreatment was optimized by statistical method, namely response surface methodology (RSM). T...