Ciencia e Ingeniería en Alimentos y Biotecnología
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Item Efecto de la inclusión de harina de papa china (Colocasia Esculenta) y plátano no comercial (Mussa Acuminata) en el desarrollo de un embutido tipo salchicha Frankfurt(Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos y Biotecnología. Carrera de Alimentos, 2025-02) Zapata Toaquiza, Johana Lisbeth; Salazar Garcés, Diego ManoloCurrently, consumer demand for healthier products drives the food industry to develop foods with reduced fat, salt, and sugar content, as well as high nutritional value, aiming to help prevent chronic diseases. The use of underutilized resources presents an opportunity to improve the nutritional profile of food products. Formulations were developed using Chinese yam flour and non-commercial banana flour at concentrations of 8 percent and 12 percent, along with two controls using wheat flour at the same concentrations. The sausages were evaluated for their proximate composition, physicochemical properties, texture, and sensory quality over 30 days of storage. Based on the results, it was determined that the sausages produced have an interesting nutritional value, with the 12 percent Chinese yam and non-commercial banana flour formulation standing out. The color of all four formulations was affected by the nature of the flours used, particularly in those with higher concentrations of non-conventional flours. Finally, sensory analysis showed acceptability for the 8percent Chinese yam and non-commercial banana flour formulation. Therefore, the results demonstrate that the inclusion of non-conventional flours is a viable alternative to improve the nutritional profile of Frankfurt sausages.Item Elaboración de snacks horneados a partir de harina de melloco blanco (Ullucus tuberosus Loz) y maíz (Zea mays) precocido, fortificados con cúrcuma (Curuma longa)(Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos y Biotecnología. Carrera de Alimentos, 2025-02) Villacis Venegas, Adriana Zulay; Ortiz Escobar, Jacqueline de las MercedesCurrently, the trend towards fast food consumption is increasing, which has generated a greater demand for healthy snacks; however, this phenomenon faces a critical challenge; malnutrition, especially invulnerable populations, the problem is aggravated by the high consumption of processed foods that lack nutritional value, with this background, the present work proposes to develop nutritious snacks to offer a healthy alternative and good sensory characteristics. The development process included the creation of three baked snack formulations, which were subjected to sensory analysis to identify the most acceptable; physicochemical and microbiological analyses were carried out to guarantee the quality of the final product, the ingredients were selected and processed under controlled conditions, ensuring a safe and nutritious product, the best formulation has 60 percent of white melloco flour and 40 percent of pre-cooked corn flour, which obtained the best sensory acceptance in terms of taste, texture and colour and a yield of 72. 31 percent, the physicochemical analysis revealed a significant content of protein, fiber, and complies with quality standards. In conclusion, the snack produced is healthy and nutritious for consumption and can bring benefits to the consumer, it also contributes to the state of the art by incorporating local and underutilised ingredients, thus promoting food safety and public health in Ecuador.Item Sustitución parcial de harina de trigo por harina de chontaduro (Bactris gasipaes) en la elaboración de pastas compuestas tipo spaghetti(Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos y Biotecnología. Carrera de Alimentos, 2025-02) Verdesoto Yugcha, Jenny Alexandra; Delgado Ramos, Verónica AndreaGluten sensitivity affects 1 in 10 people, limiting its consumption to foods such as pasta, breads, and desserts, because they are made from wheat flour. This, in turn, results in a high gluten content. Currently, there are several gluten-free flour alternatives, including Chontaduro flour. The objective of this study was to develop a spaghetti with low gluten content that is ideal for people sensitive to this protein by substituting wheat flour with chontaduro flour. The physical, functional, and bromatological properties of spaghetti were evaluated after three treatments of 10, 25, and 40 percent. The results indicated a pH of 5.68 to 5.71, acidity of 0.156 to 0.254. However, in the case of IAA, it decreased from 116.8 to 29.7 percent. The same was true for the cooking time, which decreases from 8.50 to 5.50 minutes. In contrast, protein increased from 11.93 to 16.675 percent and carbohydrates from 68.87 to 72.78 percent. Therefore, 10 percent substitution of wheat flour with chontaduro flour had the best physical and functional properties. However, 40 percent substitution of wheat flour with chontaduro flour was better in terms of bromatological properties. The results presented in this work demonstrate that it is possible to make healthy foods with dietary inclusion for gluten-sensitive people.Item Modelado de la cinética de secado e isoterma de adsorción de agua de mesocarpio de zapallo (Cucurbita máxima Duchesne) sometido a diferentes tratamientos previos al secado(Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos y Biotecnología. Carrera de Alimentos, 2025-02) Toaquiza Landeta, Arlett Estefanía; Acurio Arcos, Liliana PatriciaThis work studied the behavior of pumpkin being subjected to boiling, steam and microwave as pretreatments, with a subsequent drying process at 65 degrees Celsius for 8 hours. The samples reached a final humidity of 2.1 percent for the control, 1.8 percent for the sample pretreated with boiling water, 3.2 percent for steam and 2.6 percent for microwaves. The drying kinetics were adjusted to different mathematical models (Newton, Page, modified Page, Henderson & Pabis, Logarithmic, and Wang & Singh), being the Page model the one that presented a better fit. Adsorption isotherms were created by applying supersaturated salts that allowed simulating environments with relative humidities between 11.78 percent and 80.12 percent. The equilibrium humidity values reached by the samples were adjusted to the BET and GAB models. It was observed that the GAB model presented a better fit for the control, subjected to boiling water and microwaves. In contrast, the BET mathematical model allowed explaining the behavior of the pumpkin sample pretreated with steam. The sample pretreated with microwaves presented a higher water adsorption capacity in the monolayer with a value of 0.0558 grams of water per gram of dry solid. Finally, the samples exceeded a relative humidity of 30 percent, they showed a substantial increase in the flours' water adsorption capacity, so storage conditions that should not exceed 60percent relative humidity.Item Modelado de la cinética de secado del mesocarpio y de las isotermas de adsorción de la harina de la calabaza (Cucurbita pepo L.) sometida a diferentes pretratamientos(Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos y Biotecnología. Carrera de Alimentos, 2025-02) Tibanlombo Timbila, Daniela Salomé; Acurio Arcos, Liliana PatriciaCucurbits are fruits rich in bioactive compounds; however, their consumption is mainly limited to fresh forms. This study analyzed the drying kinetics of winter squash (Cucurbita pepo L.) mesocarp subjected to precooking with boiling water, steam, and microwaves, and the analysis of the adsorption isotherms of the flour obtained from the different pretreatments. A decrease of more than 80 percent of the initial moisture of the samples was observed. The determination of the drying rate showed that the combination of microwave and convective drying at 65 Celsius degrees for eight hours was the ideal treatment to obtain a critical moisture of 2.68 kg water per kg dry solids and an equilibrium moisture of 0.04 kg water per kg dry solids. The water loss rate was adjusted to six main mathematical models, with the Modified Page model providing the best fit. When determining the effective diffusivity coefficient of water, it was found that the pretreatments reduce the activation energy. Therefore, it is concluded that these previous stages accelerate the drying process. The shelf life of the flours was examined through the construction of sorption isotherms. These presented type II sigmoid curves due to their macroscopic surface structure and hydrophobic nature. Regarding the fit performed with the BET and GAB models, it was confirmed that the adhesion of water molecules is stronger in the monolayer. The correlation coefficient allowed the establishment of the BET model as the best approximation.Item Efecto de la inclusión de harina de zanahoria blanca (Arracacia xanthorrhiza) y plátano no comercial (Musa balbisiana) en el desarrollo de un embutido tipo salchicha Frankfurt(Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos y Biotecnología. Carrera de Alimentos, 2025-02) Santana Padilla, Anahí Selena; Salazar Garcés, Diego ManoloThe growing demand for healthier and more sustainable meat products has driven the search for alternatives to traditional ingredients. This study focuses on evaluating the potential of white carrot flour and non-commercial banana flour as alternative ingredients in the production of Frankfurt sausages. Proximate composition, physicochemical parameters, texture, sensory acceptability, and the stability of pH, acidity, and color were evaluated over a 30-day storage period. Significant differences were observed in the compositional parameters between the formulations developed with white carrot flour, non-commercial banana flour, and controls, in which the fiber parameters and a decrease in fat in the formulations with white carrot flour and non-commercial banana stand out. Regarding physicochemical properties, significant differences at the 0.05 probability level were found between the control groups and formulations with white carrot and banana. The texture showed that sausages with white carrot were harder, and chewiness decreased slightly with increasing flour and fiber content. Sensory analysis showed a clear influence of the composition on the acceptability of the product made with unconventional flours. Storage stability showed that, due to the physicochemical properties evaluated, the sausages have stability for up to 30 days of storage.Item Efecto de los tratamientos previos al secado en la calidad tecnológica de la harina de calabaza (Curcubita pepo)(Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos y Biotecnología. Carrera de Alimentos, 2025-02) Rivera Barona, Holger Wanderber; Acurio Arcos, Liliana PatriciaThere are currently many viable alternatives to replace wheat flour, because its gluten content is harmful to health in gastrointestinal matters. Replacing it or looking for an alternative in a cucurbit makes this product of utmost importance for the food industry, since it is an option for a flour that contains starch, dietary fiber, antioxidants, vitamins and minerals. Being a foreign species, but known in Ecuador, the Curcubita pepo squash is gaining space in the local environment, which is purchased fresh or vacuum packed in supermarkets. Applying heat treatments to the squash pulp increases its organoleptic and functional properties, as well as extending its shelf life. The process was marked by obtaining the squash from a local producer in the Cevallos canton. Once the squash was obtained, it was laminated and subjected to different treatments to later be dehydrated, ground and obtain a flour ready for the relevant analyses. A soft flour with a characteristic smell and color was obtained, and the particle size, water activity, humidity, loose bulk density and water solubility were analyzed. The results revealed that the heat treatments contributed to improving the organoleptic properties. Properties such as a more marked color, increased soluble solids and better water solubility and absorption were obtained.Item Efecto de la inclusión de harina de yuca amarilla (Manihot esculenta) y plátano no comercial (Mussa acuminata) en el desarrollo de un embutido tipo salchicha Frankfurt(Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos y Biotecnología. Carrera de Alimentos, 2025-02) Quinzo Parra, Jéssica Marcela; Salazar Garcés, Diego Manoloimproved nutritional profile, characterized by reduced fat, sugar, and salt content, as well as higher fiber content. In this context, the use of flours derived from Andean crops presents an opportunity to leverage both the technological properties and the nutritional benefits these crops offer in the formulation and development of new food products. Two formulations were developed, incorporating a mixture of yellow cassava flour and green plantain flour at concentrations of 5 and 12 percent, along with two control formulations using wheat flour at the same concentrations. In Frankfurt-type sausages, proximal composition, physicochemical properties, texture parameters, color, and sensory attributes were evaluated. The results showed that, based on the proximal composition, the sample with the highest protein and fiber content was the one with a 12 percent concentration of yellow cassava and green plantain flour. The physicochemical properties demonstrated that the addition of these flours resulted in increased yellowness values in the sausages. Texture analysis revealed that the inclusion of these two types of flours caused changes in chewiness and hardness. Finally, the sensory analysis indicated greater acceptability for the sausages prepared with an 8 percent concentration of yellow cassava and green plantain flour.Item Desarrollo de un snack tradicional de maíz enriquecido con harina de tarwi (Lupinus mutabilis Sweet)(Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos y Biotecnología. Carrera de Alimentos, 2025-02) Poveda Concha, Débora Michelle; Paredes Escobar, Mayra Lilianaincluded methodology for the debittering of the lupine, the preparation of lupine flour, the nixtamalization of corn and the preparation of the snack. Through a texture analysis, it was determined that the snack with the highest percentage of lupine flour presented a fractureability of 5.806 with a margin of error of 0.822; indicating greater softness compared to the other treatments. In the case of the sensory analysis, the treatment with the highest percentage of lupine flour of fifty percent obtained the best acceptability, in addition to standing out in flavor, smell and texture. The incorporation of lupine flour notably improved the nutritional profile of the snack, a significant increase of 25.7 percent in protein and 5.12 percent in fiber was achieved, exceeding the nutritional values of commercial brands, which highlights its potential as a healthier and more nutritious option.Item Efecto de la inclusión de harina de achira (Canna Indica) y plátano no comercial (Mussa Acuminata) en el desarrollo de un embutido tipo salchicha Frankfurt(Universidad Técnica de Ambato. Facultad de Ciencia e Ingeniería en Alimentos y Biotecnología. Carrera de Alimentos, 2025-02) Núñez Santamaría, Lizbeth Alexandra; Salazar Garcés, Diego ManoloCurrently, consumers tend to seek foods with high nutritional and functional value, avoiding components associated with the development of chronic diseases. In this context, the use of unconventional flours represents a strategy to enhance meat products. To this end, two formulations were developed incorporating these flours at concentrations of 8 percent and 12 percent, along with two control formulations using wheat flour at the same concentrations. Frankfurt sausages were evaluated for proximal composition, physicochemical properties, texture, and sensory attributes. Additionally, the stability of pH, acidity, and color was assessed during storage. The results of the proximal composition analysis showed higher percentages of fiber, ash, and carbohydrates compared to the control formulations. Regarding physicochemical properties, the addition of these flours led to a decrease in color parameters, indicating a trend toward darker shades. In the texture analysis, no significant changes were observed except for chewiness. On the other hand, during the 30-day storage period, the stability of physicochemical properties showed progressive changes in the treatments, attributable to natural oxidation processes, ingredient interactions, and structural modifications. Finally, in the sensory analysis, the most acceptable treatment was the 12 percent formulation due to the high concentration of flours. These findings demonstrate the feasibility of incorporating unconventional flours as functional ingredients, contributing to the development of healthier foods.