Examinando por Autor "Taipe Pardo, Fredy"

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    Ítem
    Nanoencapsulation of Phenolic Extracts from Native Potato Clones (Solanum tuberosum spp. andigena) by Spray Drying
    (Multidisciplinary Digital Publishing Institute. Molecules, 2023-06-24) Gutiérrez Gómez, Edgar; Ligarda Samanez, Carlos A.; Choque Quispe, David; Moscoso Moscoso, Elibet; Palomino Rincón, Henry; Taipe Pardo, Fredy; Aguirre Landa, John Peter; Arévalo Quijano, José C.; Muñoz Saenz, Jenny C.; Quispe Quezada, Uriel Rigoberto; Huamán Carrión, Mary L.; Sucari León, Reynaldo; Luciano Alipio, Rober; Muñoz Saenz, Judy M.; Guzmán Gutiérrez, Rodrigo J.
    Native potato clones grown in Peru contain bioactive compounds beneficial to human health. This study aimed to optimize the spray-drying nanoencapsulation of native potato phenolic extracts utilizing a central composite design and response surface methodology, obtaining the optimal treatment to an inlet temperature of 120 °C and an airflow of 141 L/h in the nano spray dryer B-90, which allowed maximizing the yield of encapsulation, antioxidant capacity (DPPH), encapsulation efficiency (EE), total phenolic compounds, and total flavonoids; on the other hand, it allowed minimizing hygroscopicity, water activity (Aw), and moisture. Instrumental characterization of the nanocapsules was also carried out, observing a gain in lightness, reddening of the color, and spherical nanoparticles of heterogeneous size (133.09–165.13 nm) with a negative ζ potential. Thermal, infrared, and morphological analyses confirmed the encapsulation of the core in the wall materials. Furthermore, an in vitro release study of phenolic compounds in an aqueous solution achieved a maximum value of 9.86 mg GAE/g after 12 h. Finally, the obtained nanocapsules could be used in the food and pharmaceutical industry.
  • Miniatura
    Ítem
    Spray-Dried Porcine Collagen Microcapsules in Tara Gum–Maltodextrin Matrices: A Sustainable Approach to By-Product Valorization for Functional and Nutraceutical Applications
    (Multidisciplinary Digital Publishing Institute. Applied sciences, 2025-11-29) Ligarda Samanez, Carlos A.; Ccana Buleje, Thamirys G.; Choque Quispe, David; Palomino Rincón, Henry P; Taipe Pardo, Fredy; Moscoso Moscoso, Elibet; Mauricio Muñoz, Melgarejo; Luciano Alipio, Rober; Cervantes Carrión, Justina; Muñoz Saenz, Jenny C.; Quispe Quezada, Uriel Rigoberto; Jilaja Carita, Enoc E.
    Within the framework of the circular economy, this study evaluated the valorization of pig trotters as a source of porcine hydrolyzed collagen, which was microencapsulated via spray drying in maltodextrin (95%) and tara gum (5%) matrices. A 22 factorial design was applied to analyze the effect of inlet temperature (140 °C and 160 °C) and core concentration (5% and 10% w/w) on the physicochemical, techno-functional, structural, and morphological properties of the microcapsules. The hydrolyzed collagen presented a protein content of 52.03%. The microcapsules exhibited protein contents ranging from 17.82 to 29.36%, moisture between 1.58 and 4.71%, water activity ranging from 0.24 to 0.38, bulk density ranging from 0.44 to 0.49 g/mL, hygroscopicity ranging from 24.72 to 38.08%, solubility between 81.23 and 82.80%, and particle size ranging from 4.85 to 6.52 µm. SEM micrographs revealed predominantly spherical particles with indentations and agglomerates. FTIR spectra confirmed the characteristic amide bands of collagen and molecular interactions within the tara gum–maltodextrin matrix, while TGA thermograms demonstrated the thermal stability of the formulations. Core content had a greater influence than temperature on all response variables. Overall, the findings confirm that spray-drying microencapsulation is an effective strategy for producing stable, dispersible collagen-based powders with potential for functional food and nutraceutical applications, representing a sustainable pathway for valorizing animal by-products within the circular economy.