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Browsing by Author "Barriga-Sánchez, Maritza"

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    Cambios sensoriales, químicos y microbiológicos durante el almacenamiento de manto de calamar gigante (Dosidicus gigas) a 0 y 5°C
    (Universidad Nacional Mayor de San Marcos, Vicerectorado de Investigacion, 2022-10-27) Pariona-Velarde, Daniel; Barriga-Sánchez, Maritza
    El objetivo del estudio fue evaluar los cambios sensoriales, químicos y microbiológicos en manto de calamar gigante (Dosidicus gigas) con piel (CP) y sin piel (SP) almacenados en hielo (0 ± 1 ºC) por 19 días y en refrigeración (5 ± 1 ºC) por 8 días. La evaluación química se realizó mediante el análisis de nitrógeno de trimetilamina (N-TMA), nitrógeno de bases volátiles (N-BVT), relación de hipoxantina/adenosina monofosfato (Hx/AMP), pH, aminas biogénicas, y la evaluación microbiológica mediante el recuento de bacterias mesófilas, psicrófilas y enterobacterias. Las características sensoriales evaluadas fueron olor (crudo y cocido), sabor, textura y aceptabilidad general. Se utilizó el Análisis de Componentes Principales (ACP) y la Correlación de Pearson (p<0.05) para encontrar la asociación entre el deterioro sensorial y los análisis químicos o microbiológicos. Se concluye que los análisis Log(Put+Cad+Hist), Log (Psicrófilos) y Log. (Mesófilos) serían los adecuados para describir los cambios en el manto de calamar gigante almacenados a 0 y 5 °C.
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    Effects of subcritical water extraction and cultivar geographical location on the phenolic compounds and antioxidant capacity of Quebranta (Vitis vinifera) grape seeds from the Peruvian pisco industry by-product
    (FapUNIFESP (SciELO), 2022) Barriga-Sánchez, Maritza; Rosales-Hartshorn, María
    The objectives of this study were to evaluate the effects of the grape cultivar geographical location and extraction technique on the total phenolic compounds (TPC), antioxidant capacity (AC), oil yield and quality of Quebranta (Vitis vinifera) grape seeds. Seeds were defatted with supercritical CO2 and the bioactive compounds were extracted with subcritical water and macerations with methanol, ethanol, and acetone. The differences in grape seed oil yield were not significant (p > 0.05). The most abundant fatty acid determined was linoleic (66.37-67.37%). The highest TPC corresponded to the extracts from zones A and B obtained with subcritical water, 167.56 ± 10.40 and 161.83 ± 4.95 mg GAE/g dw, respectively. The highest AC by DPPH was also achieved by the extracts from zones A and B (1,479.90 ± 12.86 and 1,628.15 ± 80.32 µmol TE/g dw, respectively) with subcritical water extraction. The highest AC by FRAP was observed in the subcritical water extracts from zones B and C, 1,429.29 ± 29.75 and 1,389.54 ± 7.46 µmol TE/g dw, respectively. Grape seed is a valuable source of nutritionally oil and bioactive compounds, which can be obtained from by-products of pisco production for potential use in the food and pharmaceutical industries. © 2022 Elsevier B.V., All rights reserved.
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    Estudio preliminar de teñido de fibra de alpaca utilizando extracto acuoso de molle (Schinus molle) como pigmento natural
    (Instituto Tecnológico de la Producción, 2022-01-21) Carrasco Bocangel, José; Sucasaca, Alexander; Sanchez-Gonzales, Gloria; Morán Flores, Geraldyne; Barriga-Sánchez, Maritza
    "El teñido de prendas con pigmentos naturales es una alternativa para evitar utilizar colorantes químicos que a menudo resultan ser tóxicos para el medio ambiente y la salud humana. El objetivo del estudio fue realizar el proceso de teñido de la fibra de alpaca con pigmento natural a partir de molle fresco y seco. Para ello, se realizó la extracción líquida presurizada acuosa del pigmento de molle, se midió el color (L*, a* y b*), pH, sólidos totales y se evaluó la estabilidad del extracto en almacenamiento. Se realizó la evaporación parcial del agua y con el extracto concentrado se realizó el teñido de la fibra de alpaca utilizando los siguientes mordientes: ácido cítrico, sulfato de cobre, sulfato de hierro, sulfato de aluminio, bitartrato de potasio, sulfato de amonio, evaluándose la intensidad del color, así como la solidez de color al frote y al lavado. Los resultados indicaron que la mejor condición de almacenamiento del extracto fue 5°C en oscuridad y que la evaluación de solidez del color al frote como al lavado de las madejas mostraron valores de 4-5 utilizando los mordientes mencionados, aunque con el ácido cítrico se realizaron menos enjuagues. Se concluye que el ácido cítrico fue el mordiente con mejor afinidad al molle, y que para el teñido de fibra de alpaca fueron necesarios 21 y 4 ml de extracto concentrado de molle fresco y seco respectivamente fue satisfactorio."
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    Extraction of bioactive lipids from Pleuroncodes monodon using organic solvents and supercritical CO2
    (Editorial CSIC, 2023-3-22) Barriga-Sánchez, Maritza; Sanchez-Gonzales, Gloria Cesia; Varas Condori, Miguel Angel; Sanjinez Alvites, M.N.; Ayala Galdos, María Estela
    A huge volume of Engraulis ringens (Peruvian anchoveta) is caught together with the species Pleuroncodes monodon (munida), whose potential bioactive lipids are not commercially exploited. In the present study, lipid with carotenoid pigment (astaxanthin) and essential fatty acids (EPA+DHA) were obtained from munida lipids extracted with hexane:isopropyl alcohol (He-I), acetone (Ac), ethanol (Et) and supercritical CO2 + ethanol (SC-CO2-Et). The functional quality of the fatty acids was determined by atherogenicity index (AI), thrombogenicity index (TI) and the hypocholesterolemia:hypercholesterolemia (H:H) ratio. The highest astaxanthin (ASTX) contents (4238.65 and 4086.71 µg/g lipid) corresponded to extractions using Ac and SC-CO2-Et. EPA+DHA ranged from 31.15 to 31.85% and the functional quality ranges were between 0.56-0.61 (AI), 0.19-0.21 (TI) and 1.73-1.81 (H:H). Consequently, SC-CO2-Et extraction would be advisable because of its low environmental impact. The IA and IT quality indexes suggest that the consumption of munida lipids would be healthy, although the H:H ratio shows the opposite.
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    Functional characteristics and antimicrobial activity of supercritical CO2 extracts from passion fruit (Passiflora edulis) seeds
    (Universidad Nacional de Colombia, 2025-1-1) Barriga-Sánchez, Maritza; Varas Condori, Miguel Angel; Sanchez-Gonzales, Gloria; Céspedes Chombo, Roxana
    The passion fruit seed is an important byproduct of the agroindustry, as it accounts for 15% of this fruit, so it is imperative to add value to these seeds. In this context, the present study aimed to evaluate the functional characteristics and antimicrobial activity of passion fruit seeds. Oil extraction was carried out using supercritical CO2 (SC-CO2) and supercritical CO2 with ethanol cosolvent (SCCO2+et); both oils showed a similar fatty acid profile with a high content of polyunsaturated fatty acids (71.62 and 71.80%, respectively). The study of the functional quality of the oils showed low atherogenicity (AI) and thrombogenicity (TI) indices. The seed flour oil and the defatted passion fruit seed flour extract presented antimicrobial activity against Klebsiella oxytoca, Staphylococcus aureus and Proteus vulgaris. The ethanolic extract of flour defatted with CO2+ethanol (FDCE) obtained higher values of total phenolic compounds and antioxidant capacity by ABTS and FRAP. The present research provides the characterization of the functional properties of the passion fruit seed oils and the defatted seed, being data of interest for future applications of the passion fruit seed.
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    In vitro and in vivo evaluation of hypoglycemic potential and acute toxicity of microencapsulated turmeric instant powder
    (Phytomedicine Plus, 2024-11-01) Barriga-Sánchez, Maritza; González-Aspajo, Germán; Sanchez-Gonzales, Gloria; Barreto-Salcedo, Candy; Aranda-Ventura, Jose Alberto
    Background: Curcuma longa L. (turmeric), traditionally used to treat various ailments including diabetes, has demonstrated beneficial health effects. However, its potential in food formulations requires further investigation. Purpose: This study examined the hypoglycemic effects of an instant powder containing microencapsulated turmeric oleoresin both in vitro and in vivo, alongside an acute toxicity assessment in Holtzman rats. Methods: This study encompassed both in vitro and in vivo evaluations. In vitro, the α-glucosidase (a digestive enzyme) inhibition assay was employed to determine the powder's effectiveness. In vivo assessments included: (1) evaluation of the hypoglycemic effect in mice; (2) conducted safety testing following international guidelines, administering a 2000 mg/kg dose to rats with subsequent monitoring of biochemical parameters; and (3) histological examination of liver, kidney, and spleen tissues for potential harmful effects. Results: The instant powder with turmeric oleoresin microencapsulation demonstrated significant α-glucosidase inhibition in vitro and hypoglycemic effects in vivo. The acute toxicity test at 2000 mg/kg showed no mortality but revealed significant alterations in erythrocyte parameters and hemoglobin percentage. Histological examinations of liver, kidney, and spleen tissues did not differ from those of the control group, though pancreatic tissue was not evaluated in this study. Conclusion According to this study, the microencapsulated turmeric oleoresin instant powder exhibited antidiabetic effects without signs of overt toxicity at doses up to 2000 mg/kg in rats.
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    Inclusión de Ensilado de Residuos de Trucha en el Alimento de Cerdos y su Efecto en el Rendimiento Productivo y Sabor de la Carne
    (Universidad Nacional Mayor de San Marcos, Vicerectorado de Investigacion, 2017-7-23) Calderón-Quispe, Víctor; Churacutipa-Mamani, Marisol; Salas, Alberto; Barriga-Sánchez, Maritza; Araníbar, Marcelino J.
    Con la finalidad de determinar el efecto del nivel de inclusión de ensilado de residuos de trucha (ERT) en el alimento sobre el peso vivo, consumo de alimento y conversión alimenticia en cerdos, así como en el sabor de su carne, se plantearon tres tratamientos: un testigo (T1, 0%) y dos con niveles de 5% (T2) y 10% (T3) de inclusión de ERT en la ración, donde cada tratamiento se hizo con cinco réplicas. Se utilizaron 30 cerdos machos enteros de 45 días de edad (York-Duroc-Landrace). Los alimentos de crecimiento y engorde fueron similares en proteína (PB) y energía metabolizable (EM) (crecimiento: 16.0% PB y 3.20 Mcal/kg EM y engorde: 13.0% PB y 3.20 Mcal/kg EM) y fueron administrados ad libitum durante 98 días. Se determinó el peso vivo, el consumo de alimento y la conversión alimenticia a los 56 y 98 días. Al final se realizó una prueba sensorial para evaluar el sabor de la carne. A los 98 días, los resultados indicaron que los tratamientos T1, T2 y T3 no afectaron el peso vivo (69.8, 81.3 y 86.4 kg, respectivamente), ni el consumo de alimento (1.30, 1.50 y 1.54 kg/día, respectivamente). Sin embargo, la conversión alimenticia fue mejor con el incremento del ERT en la ración (2.25, 2.15 y 2.04 para T1, T2 y T3, respectivamente, p=0.012). Las calificaciones de la prueba sensorial indicaron que la inclusión de ERT en el alimento no afectó el sabor de la carne. Se concluye que hasta 10% de inclusión de ERT en el alimento mejora la conversión alimenticia y no afecta el sabor de la carne de los cerdos.
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    Supercritical CO2 assisted extraction of freeze-dried sinami fruit pulp (Oenocarpus mapora H. karst) oil: An experimental optimization approach
    (Elsevier BV, 2024-4) Barriga-Sánchez, Maritza; Casimiro-Gonzales, Sandra; Ramos-Escudero, Fernando; Muñoz, Ana Maria; Anticona, Mayra
    Sinami (Oenocarpus mapora H. karst) is the fruit of a native palm from the Amazon region. Sinami is a source of bioactive compounds and, mainly, vegetable oil rich in unsaturated fatty acids and phenolic compounds. In the present study, supercritical-CO2 (SC–CO2) extraction was applied to obtain the Sinami oil. Parameters such as pressure (P) and temperature (T) were optimized to determine the extraction conditions to allow the highest yield of oil. Also, quality values of oils such as peroxide value index (POV), free fatty acids (FFA), dienes, and trienes were assessed, the fatty acid and phenolic compounds profiles were characterized, and color parameters were observed. The maximum oil yield was reached at 43.5 °C and 27.07 MPa (30.4 g 100 g−1). Quality parameters indicate that Sinami oil exhibits good stability per resistance to oxidation and presents low levels of hydrocarbons. The oleic > palmitic > linoleic acids were predominant in the oil composition, and vainillin acid was the phenolic with the highest concentration. These characteristics suggest future research about possible applications of Sinami oil as a potential ingredient with nutraceutical benefits. © 2024 Elsevier B.V., All rights reserved.
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    Supercritical Fluid Extraction of Lipids and Astaxanthin Optimization from Munida (Pleuroncodes monodon) and its Characterization
    (Informa UK Limited, 2022-6-7) Barriga-Sánchez, Maritza; Varas Condori, Miguel A.; Churata Huanca, Anna Clara; Aranda Pariasca, Diana Milagros
    Munida (Pleuroncodes monodon) is a resource not economically exploited in Peru that contains important bioactive compounds such as astaxanthin (ASTX) and omega-3. A supercritical fluid extraction of lipids was performed using CO2 and ethanol, in order to maximize the ASTX extraction. Under optimal conditions, the lipid extraction was 22.53 g/100 g of munida meal, ASTX content of 5413.50 µg/g of munida lipid, omega-3 content of 31.79%, and shelf life of 71 days at 4°C Results provide key information about this resource for future utilization of food and pharmaceutical products. © 2022 Elsevier B.V., All rights reserved.
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    Utilización del extracto oleoso de Pleuroncodes monodon como pigmentante en el alimento balanceado de la trucha arcoíris (Oncorhynchus mykiss)
    (Universidad Nacional Mayor de San Marcos, Vicerectorado de Investigacion, 2021-12-22) Montufar, Paul; Churacutipa Mamani, Marisol; Barriga-Sánchez, Maritza
    El objetivo del presente trabajo fue evaluar el extracto oleoso de la munida Pleuroncodes monodon en el alimento balanceado sobre la pigmentación del músculo de la trucha arcoíris (Oncorhynchus mykiss). Los tratamientos fueron T1: alimento formulado sin pigmento, T2 y T3: alimento con 70 y 90 mg de astaxantina natural/kg de alimento, respectivamente y, T4 alimento con pigmento sintético (70 mg de astaxantina/kg de alimento). Se registraron cada 15 días y durante 90 días los valores de color utilizando la regla colorimétrica de Roche SalmoFanR y los valores de L*, a*, b*, C* y H* de la zona dorsal y caudal de la trucha. Los resultados de las lecturas de color indicaron que los tratamientos T2, T3 y T4 obtenidos con la regla SalmoFanR no presentaron diferencias significativas entre ellas; no obstante, la medición obtenida con el colorímetro muestra diferencias de color del T4 con respecto al T2 y T3. Se concluye, que la adición de 70 mg de astaxantina natural por kilogramo de alimento logra la pigmentación similar a lo obtenido con la astaxantina sintética.

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