Humberto Aguirre-Becerra

• Doctor of Engineering
• Professor (Full) at Autonomous University of Queretaro

This study assessed the performance of black soldier fly larvae (BSFL) fed different tomato plant residues (fruit, leaves, and stems) at doses ranging from 100 to 350 mg/larva/day over ten days. Most doses resulted in 100% survival, except for the leaf residue at the highest dose (300 mg/larva/day), which had an 88% survival rate. Growth varied by...

Given the importance of phenolic compounds and antioxidant capacity in plant defense and human health, this study aimed to evaluate black cherry tomatoes’ polyphenol, flavonoid, anthocyanin, and carotenoid content and enzymatic activity under greenhouse conditions. Black cherry tomato varieties—Indigo Cherry Drops, Indigo Rose, and Kumato—were cult...

Chitin is one of the most abundant biopolymers in nature and is found mainly in the exoskeletons of crustaceans and insects, in the cell walls of fungi, and in some species of mollusks. Chitosan is a derivative of chitin; it is much more accessible and has a broader range of applications, including improving the quality of materials such as films,...

Frass generated during the production of black soldier fly larvae is attracting the interest of scientists and horticultural producers because it is a material made from the biotransformation of organic waste, it contains several nutrients that can be used by plants, and it has a biostimulant capacity that has become a recent focus. Thermal compost...

Secondary metabolites, bioactive compounds produced by living organisms, can unveil symbiotic relationships in nature. In this study, soilborne entomopathogenic nematodes associated with symbiotic bacteria (Xenorhabdus stockiae and Photorhabdus luminescens) were extracted from solvent supernatant containing secondary metabolites, demonstrating sign...

The reuse and reincorporation of waste are the principles of circular economies. Compost, biofuels, animal feed, dyes, and bioactive compounds can be obtained from the revaluation of organic waste. Research on this subject is scarce and limited to specific sectors, such as agriculture and agroindustry, leaving aside others that generate large quant...

Simple Summary Environmental factors are considered abiotic stressors when they negatively affect the integrity and welfare of fish. In aquaculture, many stressors occur under intensive fish farming (e.g., poor water quality, handling, crowding, and transportation). Abiotic chronic stress results in higher mortality and disease incidence, lowering...

Meeting the demand for food through sustainable agro-industrial systems has become a concern due to the current state of the planet’s natural resources, population growth, and climate change. To address this, the 2030 Agenda has laid out several strategies to enhance human well-being and protect the planet. This paper focuses on Goal 2, which aims...

New strategies to combat hunger are a current and urgent demand. The increase in population has generated a high demand for products and services that affect food production, cultivation areas, and climate. Viable and sustainable alternative sources have been sought to meet food quality requirements. In this context, edible insects are a good sourc...

Plant secondary metabolism plays a relevant role in protecting plants against abiotic-biotic stress. Secondary metabolites are not part of vital plant processes but allow them to survive during harsh environmental conditions. Examples of biotic stress include viruses, bacteria, fungi, and miRNA. Abiotic stress includes low and high temperatures, dr...

Aquaculture waters can be associated with the modification of the phytochemical profile in plants when they are used for irrigation; thus, Integrated Agri-Aquaculture Systems such as aquaponics represent a strategy to improve the bioactive content of medicinal plants. This study aimed to analyze the effect caused by cultivation using aquaponics on...

Agriculture is a primary source of food and plays a fundamental role in the economy of any country. This activity represents the basis of human life and is the largest source of food grains and other raw materials (Pandey et al., 2022). However, farmers face serious problems achieving sustainable agriculture that cost-effectively manages the growin...

This volume is a complete review of the cutting-edge scientific evidence about the isolation, identification, bioactivity and molecular analysis of the biologically active peptides (BAPs) obtained from several underutilized grains. It provides a general review of current and new technologies in isolating and bioprospecting BAPs before going into th...

Lippia graveolens is one of the most important aromatic species in Mexico due to antioxi-dant and antibiotic activities reported in its essential oil. The aim of this work was to assess the effect of irrigation with aquaculture wastewater and salicylic acid addition on the production of phenolic compounds in L. graveolens. L. graveolens plants (14)...

Sweet peppers are consumed worldwide, and traditional uses have sparked interest in their applications as dietary antioxidants, which can be enhanced in plants using elicitors. These are endowed with phytochemicals with potential health benefits such as antioxidants, bioavailability, and bioaccessibility. The trend in metabolomics shows us chemical...

Nanomaterials (NMs) and nanostructured materials (NSMs) possess specific physicochemical characteristics suitable for different applications in medicine, pharmaceuticals, biotechnology, energy, cosmetics, electronics, environmental remediation, and agricultural processes. Due to their size and surface reactivity, these compounds can interact and mo...

The efficient use of natural resources without negative repercussions to the environment has encouraged the incursion of nanotechnology to provide viable alternatives in diverse areas, including crop management. Agriculture faces challenges due to the combination of different abiotic stresses where nanotechnology can contribute with promising appli...

Hylocereus spp. present two varieties of commercial interest due to their color, organoleptic characteristics, and nutritional contribution, such as Hylocerous polyrhizus and Selenicerus undatus. The fruit recognized as dragon fruit or Pitahaya is an exotic fruit whose pulp is consumed, while the peel is discarded during the process. Studies indica...

Nowadays, agricultural changes have been proposed due to more common oxidative stress and nutrient imbalance presented in plants. Also, a new challenge must be overcome by the production areas that are expanding into inadequate crop growth regions to fulfill food security targets to meet the needs of the continuously increasing human population. Ev...

Alginate is a polysaccharide with the property of forming hydrogels, which is economic production, zero toxicity, and biocompatibility. In the agro-industry, alginate is used as a super absorbent polymer, coating seeds, fruits, and vegetables and as a carrier of bacteria and fungi as plant-growth promoters and biocontrol. The latter has a high impa...

Whiteflies (Bemisia tabaci) represent an insect pest in horticulture. It serves as a vector for transmitting phytopathogens that inhibit the correct development of plants, affecting crop performance. In this research, whitefly population model was proposed to provide a tool that predicts the pest spread within a crop under greenhouse conditions. Th...

Secondary plant metabolites are natural bioactive compounds which are an important income for the pharmaceutical, food, cosmetic, agriculture, and other sectors due to their health-promoting properties and prevention and treatment of some diseases. The secondary metabolites can be classified into three main groups: phenolic compounds, terpenoids, a...

Antimicrobial resistance to antibiotics is a serious health problem worldwide, for this reason, the search for natural agents with antimicrobial power against pathogenic microorganisms is of current importance. The objective of this work was to evaluate the antioxidant capacity (ABTSþ and DPPH), antimicrobial activity, and polyphenol compounds of m...

Light is an abiotic factor, and its quality, quantity, and photoperiod can bemodulated to work as eustress inductors to regulate plant processes. It is known that red (R), blue (B), farred (FR), and ultraviolet-A wavelengths can promote photomorphogenesis and secondary metabolite production in plants. Several ratios of R:B and the addition of end o...

Light is an abiotic factor whose quality, quantity and photoperiod can be modulated in order to work as a eustress inductor for regulation of plant processes. It is known that red (R), blue (B), far-red (FR) and UV-A wavelengths can promote photomorphogenesis and secondary metabolites production in plants. Several ratios of R:B and the addition of...

This paper describes the development of bifilar, quadrifilar, and octofilar Calculable Resistors (CRs). The research involves Evanohm-S and Isaohm wire heat treatment processes to achieve temperature coefficients less than 0.5 μΩ/Ω/∘C in the CR’s wire resistance element, tests of different terminal–wire joining techniques, and construction aspects...

Plants are the main source of secondary metabolites, which can be used in different sectors such as pharmaceutics, food, cosmetics, agriculture, etc. turning them into an attractive source of income. Primary metabolites (carbohydrates, lipids, and proteins) have been linked to vital processes such as growth, development, and fruiting, while the sec...

Global trends in quality and sustainability in our food products and supply chains are becoming turning points in the customer buying decisions. In order to give an approach to the actual nutritional values of tilapia fillets, samples of four locations in central Mexico of Municipal Public Markets (including the central wholesale market) in Queréta...

The effect of two levels of temperature and natural/artificial photoperiod on growth and metamorphosis of bullfrog tadpole (Rana catesbeiana Shaw, 1802) were evaluated in an intensive rearing cultivation. Four groups of tadpoles at Gosner stage 24‐25 were subjected, during 50 days, to four different treatments: (T) Tadpole culture with temperature...

Abstract— numerous advantages in comparison with other light sources. LEDs are capable to provide specific wavelengths according to crop requirements, enhancing yield without the excessive thermic energy generation of traditional light sources such as metal-halide lamps. With specific wavelengths and extended photoperiods, previous works reported a...

Interest in Stevia rebaudiana Bertoni as a natural non-caloric sweetener has increased. To cope with biotic and abiotic environmental stresses, plants have developed a defense system that can be triggered by applying stress-simulating substances (elicitors or metabolic modifying factors) that may increase production of secondary metabolites of comm...

Stevia [Stevia rebaudiana (Bertoni)] is a perennial shrub belonging to the Asteraceae family that grows in tropical and subtropical areas of South America. Today its cultivation has spread to other regions of the world, including Canada and some parts of Asia, Europe and México, where its leaves have been used traditionally as a natural sweetener f...

Providing food security to the population represents a global challenge, especially for developing countries due to the unsustainable population growth, low incomes and accelerated urbanization rate. In México, a high percentage of the population does not have access to a basic basket and therefore has some degree of food insecurity. Government pro...

The density-dependents and physiological effects in bullfrog tadpoles (Rana catesbeiana Shaw, 1802) was evaluated to asses optimum stocking density. During 70 days, five treatments (1/4, 1/3, 1/2, 1 and 2 tadpole L-1) were evaluated under greenhouse conditions. Environmental variables, water quality parameters, biometric data, oxygen consumption an...

In this paper the comparison of an adaptive method with Super-Twisting for states and parameters estimation of an IWP is presented. The estimated states are arm velocity and pendulum wheel velocity through the position measurement (outputs) and the control signal (input). Subsequently the parameter estimator is implemented. The adaptive law estimat...