Rosa MARIA Rodriguez-Jasso

Autonomous University of Coahuila | UAdeC · Department of Food Research

Ten different fungal strains from the genus Aspergillus, Penicillium, and Mucor were screened for fucoidan hydrolyzing ability aiming to find microorganisms able to produce sulfated fucan-degrading enzymes. Screening was carried out by measuring the strains kinetic and morphometric behavior over plate assays using Laminaria japonica fucoidan as onl...

A microtiter plate adaptation of the well-known dinitrosalicylic acid (DNS) colorimetric method, for measurement of reducing sugars, is described. This method allows a substantial volume reduction of the reagents and a rapid analysis of a large number of samples, having an economic cost benefit and a positive impact on the environment. Therefore, i...

In recent years, there has been a renewed interest in solid-state fermentation processes due to its high productivity of bioactive compounds, for that reason there is a constant search of improved designs that are able to be operated at industrial levels. The present work reviews the principal equipments designed for solid-state bioprocess.

Ten fungal strains isolated of Mexican semi-desert were screened for ability to hydrolyze fucoidan in order to search microorganism capable to produce sulfated fucans-degrading enzymes. Plate assay and liquid fermentation experiments were carried out using Laminaria japonica fucoidan as only carbon source, testing three nitrogen sources. Growth was...

Avocado is a tropical fruit consumed worldwide with a creamy texture, distinctive flavor, and great dietary value. Different studies have demonstrated that the consumption of avocado can help prevent and benefit some types of cancer, diabetes, and cardiovascular disease. However, bioactive molecules are present also in the seeds and peels, as well...

Bioethanol is the most commonly used biofuel. It is an alternative to replace fossil fuels in renewable energy; it can be produced from lignocellulosic feedstock using a biotechnological process. The participation of microorganisms is crucial in the bioconversion process of fermentation for ethanol production and can involve bacteria, fungi, and ye...

The proliferation of Sargassum biomass in various coastal areas has led to environmental and socio-economic problems. However, due to their unique composition, these biomasses offer versatile applications, prompting research into their potential in third-generation biorefineries. In this study, the hydrothermal processing of Sargassum sp. was evalu...

Phycocyanin is a highly valued pigment present in Spirulina platensis biomass with applications in the food industry in terms of biorefinery concepts; specifically, its antioxidant and antimicrobial capacity are an advantage that could be incorporated into a food matrix. This study aims to use rice husk as an alternative culture medium for S. plate...

The Cucurbitaceae family is an extensive group of fruits and vegetables that exhibit common characteristics; for example, they are farmed on a global scale and exhibit a wide range of applications, including fresh consumption and use in various food and beverage products. As is frequent, many species or genera share a common name, and this can lead...

The application of the biorefinery concept has contributed to the reduction of the volumes of food waste (FW), considered an economic and environmental problem. The reuse of these residues has made it possible to give them added value and take advantage of them in the production of biofuels and other value-added products. However, during the FW con...

The development of a circular bioeconomy based on the biotechnological routes allowed the production of small value-added compounds by synthesizing biomolecules such as lactic acid, which proposed a wide range of industrial applications such as food, pharmaceuticals, cosmetics, and chemical industries. Lactic acid is the natural form of hydroxycarb...

Biorefinery is a relevant concept in bioeconomy that refers to the transformation of biomass into products with high commercial interest. To apply that with rigor, however, the biomass must be renewable and abundant to avoid jeopardizing the sustainability of all forms of life. For that reason, this chapter proposes microalgae biomass as a new sour...

Maya nut (Brosimum alicastrum) is a novel food with high nutritional value. This research aimed to evaluate the nutritional and antioxidant properties of Maya nut flour (MNF) made from seeds dried by different methods (sun-dried and using hot air at 45 °C and 60 °C) to explore its incorporation into cookies and evaluate its nutritional and function...

Las barras de cereal (BC), se comercializan como un snack saludable, no obstante, su calidad nutricional es baja. Una alternativa para mejorar esto, es la incorporación de ingredientes como pseudocereales, germinados y subproductos de fruta. Objetivo. Evaluar el contenido nutricional y propiedades tecnofuncionales de una barra de cereal formulada a...

In this study, the Spirulina platenesis growth and carbohydrates, proteins, lipids, and chlorophyll production were investigated by using synthetic wastewater via a mixture experimental design using carbon–nitrogen–phosphorus (C:N:P) relation according to the mixing obtained in the experimental space. In addition, a scale-up in the growth of microa...

Enzymatic saccharification of pretreated lignocellulosic biomass is a key step in the biochemical biorefineries. To be economically practical for large-scale use, the process must be run at high solids loadings, notably biomass concentrations of more than 15 % (w/v). However, as the solids loading increases, biomass develops a highviscosity slurry...

Derived from the global energy crisis, microalgae have emerged as an alternative biomass with tremendous potential as a renewable and environmentally friendly biofuel feedstock as a rebuttal to climate change and global warming. Besides, microalgae bear potential as bio-cell factories in producing key industrial commodities, such as pigments, prote...

Population growth has increased the energy demand at an exponential rate, and fossil fuels such as oil, coal, and gas are the main energy source and the largest source of carbon dioxide emissions responsible for global warming. Hydrogen can be used as a clean fuel to combat global warming and reduce the carbon footprint at power generation, but its...

Sweet sorghum bagasse (SSB) provides a raw material rich in polysaccharides that can be converted into biofuel and other high-value-added bioproducts under the biorefinery concept. The aim of this study was to evaluate the effect of hydrothermal pretreatment on the availability of SSB fermentable sugars for bioethanol production, considering the en...

The introduction of a high concentration of biomass is a significant step to high glucose titter from differently pretreated bagasse via enzymatic hydrolysis (EH) able to overcome with these difficulties. Aim of this project to establishment of strategies to reduce the recalcitrance property along with high solid loading (20%, w/v) of agave bagasse...

The development and sustainability of second-generation biorefineries are essential for the production of high added value compounds and biofuels and their application at the industrial level. Pretreatment is one of the most critical stages in biomass processing. In this specific case, hydrothermal pretreatments (liquid hot water [LHW] and steam ex...

Sargassum spp. is a biomass that can potentially use as an alternative for bioethanol production. Hydrothermal processes (liquid hot water and steam explosion pretreatment) were carried out at different operational conditions. Enzymatic hydrolysis performed a preliminary test with different ratios 1:1 and 1:2 (cellulases and hemicellulases) of enzy...

Lignocellulosic biomass serves as an alternative renewable feed stock for the production of bioethanol using biochemical platform. Ethanol yield can be improved by adopting strategies such as simultaneous enzymatic saccharification and fermentation (SSF) using pneumatic bioreactors, robust yeast and biomass pretreated with hydrothermal process. In...

As a counter to climate change, energy crises, and global warming, microalgal biomass has gained a lot of interest as a sustainable and environmentally favorable biofuel feedstock. Micro-algal carbohydrate is considered one of the promising feedstocks for biofuel produced via the bio-conversion route under a biorefinery system. However, the present...

Gut microbiota the “virtual organ” plays a contributory role in the maintaining of human health as well as in the development of gastrointestinal diseases due to intervenes in digestion and metabolism. In this context is relevant to clarify the mechanisms of interaction of the intestinal microbiota with macromolecules for potential therapeutic appl...

The development of green technologies and bioprocesses such as solid-state fermentation (SSF) is important for the processing of macroalgae biomass and to reduce the negative effect of Sargassum spp. on marine ecosystems, as well as the production of compounds with high added value such as fungal proteins. In the present study, Sargassum spp. bioma...

Currently, there is a tendency to mitigate through advances in science and technology the environmental problems caused by the abuse of burning fossil fuels, and this resulted in accelerated climate change that has negatively impacted the quality of human life and countless species. The residues from the Agave industry in Mexico represent an excell...

Agave bagasse is a promising and interesting raw material for the development of second-generation biorefineries. However, the intrinsic resistance (recalcitrance) of lignocellulose biomass to enzymatic hydrolysis is a barrier to its effective conversion into fermentable sugars. Therefore, an autohydrolysis process under subcritical conditions is a...

The processing and valorization of hemicellulose fraction biomass from lignocellulosic material, it is an important alternative in these days for the production of high added value compounds and bioenergy in terms of biorefinery philosophy and impacting the development of the circular bioeconomy. For this reason, the development of processes at pil...

Algal biomass, which contains a range of biochemical components such as carbohydrates, lipids, and protein, has emerged as a possible alternative to traditional feedstocks for third-generation biofuel production and industrially high value-added bioproduct extraction. Micro- and macro-algae are gaining popularity as viable feedstock for biofuels su...

This study evaluated different carbon and nitrogen sources on the growth and production of carbohydrates, protein, lipids, and chlorophyll of Spirulina platensis LEB-52 through an easy successive methodology under aqueous conditions. Spirulina platensis was cultivated at 120 rpm and light intensity of 156 µmol m⁻² s⁻¹ in a 500 mL Erlenmeyer flask w...

Macroalgae is an emerging third-generation feedstock and promising biomass within the biorefinery context to produce biofuels and high-added value compounds. Biorefinery involves processes and technologies in the context of sustainable bioeconomy. Throughout the biorefinery process is important not to neglect parameters and conditions that can impa...

Fucoxanthin is a high‐added‐value carotenoid compound. It has been extracted from marine sources by various extraction methods in different countries. Fucoxanthin finds application in areas such as the pharmaceutical, cosmetic and food industries. However, recent research has shown that fucoxanthin has anticancer, antioxidant, anti‐obesity, antidia...

This work focuses on the effect of subcritical water pretreatment conditions on agave bagasse chemical composition, biomass fractionation, and enzymatic hydrolysis obtained from the different tequila production processes. The pretreatment was carried out in a batch pressurized reactor within an isothermal regime. The operational conditions for subc...

The Pleurotus ostreatus mushroom is a source of high nutritional value and bioactive compounds such as β‐glucans, with immunomodulatory, hypoglycemic and prebiotic activity. The aim of this work was to developed a bread with P. ostreatus powder (POP) to increase its nutritional value and reduce its glycemic index. Four formulations were proposed su...

The search of sustainable and environmentally friendly alternatives to obtain compounds for different industrial sectors has grown exponentially. Following the principles of biorefinery and circular bioeconomy, processes in which the use of natural resources such as macroalgae biomass is prioritized are required. This review focuses on a descriptio...

The search of sustainable and environmentally friendly alternatives to obtain compounds for different industrial sectors has grown exponentially. Following the principles of biorefinery and circular bioeconomy, processes in which the use of natural resources such as macroalgae biomass is prioritized are required. This review focuses on a descriptio...

Hydrothermal processes are an attractive clean technology and cost-effective engineering platform for biorefineries based in the conversion of biomass to biofuels and high-value bioproducts under the basis of sustainability and circular bioeconomy. The deep and detailed knowledge of the structural changes by the severity of biomasses hydrothermal f...

Agave bagasse is a residual biomass in the production of the alcoholic beverage tequila, and therefore, it is a promising raw material in the development of biorefineries using hot compressed water pretreatment (hydrothermal processing). Surfactants application has been frequently reported as an alternative to enhance monomeric sugars production ef...

Fusarium oxysporum is one of the most destructive pathogens with wide distribution and devastating effects on vegetables. An alternative to mitigate the damage caused by F. oxysporum is the use of biostimulants, since they promote a defense response in stressful situations. The objective of this work was to evaluate the biostimulant potential of hy...

Biorefineries are an operational processing strategy similar to classic petroleum biorefineries in the production of energy and products. However, the biorefineries use renewable sources (biomass) as feedstock. In these days, the biorefineries of second generation from lignocellulosic biomass are a promising strategy in the production of high added...

The avocado processing industry generates large amounts of avocado peels, which contain large amounts of high value-added compounds with antioxidant capabilities that have not yet been explored. Optimization of microwave-assisted extraction (MAE) of bioactive compounds from avocado peels with high antioxidant capacity was the objective of present w...

Sargassum spp is an invasive macroalgae and an alternative feedstock for bioethanol production. Sargassum spp biomass was subjected to high-pressure technology for biomass fractionation under different operating conditions of temperature and residence time to obtain glucan enriched pretreated solids (32.22 g/100 g of raw material). Enzyme hydrolysi...

The use of ohmic heating (OH) processing technologies in beverages might provide a higher quality value to the final product; consumers tended to prefer more natural products with minimum preservative substances. The aim of this work was to evaluate the effect of OH over the presence of microorganisms in “aguamiel” as well as to study the effects o...

Fast demographic growth has led to an increasing interest in low-cost alternative protein sources to meet population needs. Consequently, the attention of many researchers has focused on finding under-exploited sources of protein, alternative to those of animal origin, usually plant proteins have been used for this purpose, however, most of them ar...

Fermented food has been present throughout history, since fermentation not only helps preserving food, but also provides specific organoleptic characteristics typically associated to these foods. Most of the traditional fermented foods and artisanal beverages are produced by spontaneous generation, meaning no control of the microbiota, or the subst...

Avocado seeds are an agroindustrial residue widely produced in Mexico that are causing various environmental problems due to their accumulation. The evaluation of avocado residues to recover biopolymers by microwave-assisted extraction (MAE) and the characterization of avocado starch properties were studied in the present work. A central-composite...

Macroalgae are a large group of plant-like organisms that dovetail in the third-generation of renewable feedstocks within the biorefinery context, which implies the conversion of biomass to generate multiple bio-based products such as biofuels. These could be bioethanol, biogas, bio-oil, biodiesel, biohydrogen, biobutanol, amongst others. The stora...

Agave bagasse is one of the most abundant lignocellulosic residues readily available for valorization. The agave bagasse was pretreated by applying high-pressure CO2–H2O mixture at temperatures ranging from 150 to 190 °C for a residence time varying from 10 to 50 min. Subsequently, solid phase obtained from pretreatment was subject to enzymatic hyd...

Different pretreatments strategies have been developed over the years mainly to enhance enzymatic cellulose degradation. In the new biorefinery era, a more holistic view on pretreatment is required to secure optimal use of the whole biomass. Hydrothermal pretreatment technology is regarded as very promising for lignocellulose biomass fractionation...

Seaweeds, fish waste (tail, head, fins, fins, and scales), shrimp residues (head, tail, and peel), and other waste of marine species such as jellyfish and crustacean residues are marine biomasses that can be used for human consumption by exploiting its nutritional components. Seaweeds contain proteins, minerals, vitamins, lipids, and polysaccharide...

Solid-state fermentation is a microbial process carried out mostly on the surface of solid materials. Grapefruit by-products are solids that can be used as a substrate-support matrix for fungal growth in solid fermentation. On the other hand, with the fermentation, the valorization of grapefruit by-products can be done because of recovery of second...

Aguamiel is a natural sap produced by some species of agave plants, such as Agave salmiana, A. atrovirens, or A. angustifolia. It is a product with a high concentration of fructose, glucose or sucrose, although its composition may vary depending on the season in which it is produced, and may also contain agave fructans (or agavins) or fructooligosa...

One of the major challenges in biofuels production from lignocellulosic biomass is the generation of high glucose titers from cellulose in the enzymatic hydrolysis stage of pretreated biomass to guarantee a cost-effective process. Therefore, the enzymatic saccharification on cellulose at high solid loading is an alternative. In this work, the agave...

The biorefineries of seaweeds biomass in recent years have attracted attention, in this case, red seaweeds are a source of sulphated galactans such as agar and carrageenan that are relevant polysaccharides commonly applied as powerful gelling agents and stabilizers, particularly, for food and nutraceutical purposes, moreover, the rich quantity of c...

Microbial enzymes find application in enzymatic reactions for the production of fructooligosaccharides (FOS). Demands for an alternative healthy sweetener and multifunctional FOS have prompted investigators to explore microorganisms for microbial enzyme production as well as to develop bioprocesses for the production of high-fructose syrup and olig...

Undoubtedly, the food industry is undergoing a dynamic process of transformation in its continual development in order to meet the requirements and solve the great problems represented by a constantly growing global population and food claimant in both quantity and quality. In this sense, it is necessary to evaluate the technological trends and adv...

The [second generation (2G)] biorefinery is gaining wide attention for the production of biofuels such as bioethanol and coproducts such as xylooligosaccharides using lignocellulosic materials as feedstock. However, enzymatic hydrolysis of pretreated lignocellulosic materials to produce fermentable sugars is a complex-step bioethanol production pro...

The production of tequila in Mexico generates a large amount of agave bagasse per year. However, this biomass can be considered as a potential source for biofuel production. In this study, it is described how the hydrothermal pretreatment was scaled in a bench scale, considering the severity index as a strategy. The best condition was at 180 °C in...

The dependence on non-renewable resources, particularly fossil fuels, has awaken a growing interest in research of sustainable alternative energy sources, such as bioethanol. The production of bioethanol from lignocellulosic materials comprises three main stages, starting with a pretreatment, followed by an enzymatic hydrolysis step where fermentab...

Biofuels derived from microalgae biomass have received a great deal of attention owing to their high potentials as sustainable alternatives to fossil fuels. Microalgae have a high capacity of CO2 fixation and depending on their growth conditions, they can accumulate different quantities of lipids, proteins, and carbohydrates. Microalgal biomass can...

Biorefineries of second generation (2G) are receiving more attention nowadays as an option for the development of bioeconomy all over the world. One of the main pretreatments utilized in this type of facilities for the conversion of lignocellulosic biomass is the use of hydrothermal processing using only water/steam as catalyst under different form...