Production of Bioferments from Artichoke and Asparagus Waste with High Unicellular Protein and Carotenoid Content Using R. mucilaginosa

Magaly De La Cruz-Noriega (), Santiago M. Benites, Segundo Rojas-Flores, Claudio Quiñones-Cerna, Nicole Terrones Rodríguez, Heber Robles-Castillo, Johnny Huanes-Carranza and Karol Mendoza-Villanueva
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Magaly De La Cruz-Noriega: Vicerrectorado de Investigación, Universidad Autónoma del Perú, Lima 15842, Peru
Santiago M. Benites: Vicerrectorado de Investigación, Universidad Autónoma del Perú, Lima 15842, Peru
Segundo Rojas-Flores: Vicerrectorado de Investigación, Universidad Autónoma del Perú, Lima 15842, Peru
Claudio Quiñones-Cerna: Departamento de Microbiología y Parasitología, Facultad de Ciencias Biológicas, Universidad Nacional de Trujillo, Juan Pablo II Av., Trujillo 13008, Peru
Nicole Terrones Rodríguez: Laboratorio de Biotecnología e Ingeniería Genética, Facultad de Ciencias Biológicas, Universidad Nacional de Trujillo, Trujillo 13008, Peru
Heber Robles-Castillo: Laboratorio de Biotecnología e Ingeniería Genética, Facultad de Ciencias Biológicas, Universidad Nacional de Trujillo, Trujillo 13008, Peru
Johnny Huanes-Carranza: Departamento de Microbiología y Parasitología, Facultad de Ciencias Biológicas, Universidad Nacional de Trujillo, Juan Pablo II Av., Trujillo 13008, Peru
Karol Mendoza-Villanueva: Investigación Formativa e Integridad Científica, Universidad César Vallejo, Trujillo 13001, Peru

Sustainability, 2023, vol. 15, issue 20, 1-9

Abstract: Microorganisms’ degradation of agro-industrial waste produces bad odors and greenhouse gases that contribute to global warming. Consequently, eco-friendly, sustainable biotechnological alternatives to this waste are sought to provide additional value, which is why this study’s objective was to develop a method of producing unicellular proteins from artichoke and asparagus agro-industrial waste using Rhodotorula mucilaginosa as a producer organism. Agricultural soil was collected from the Universidad Nacional de Trujillo (Peru), and R. mucilaginosa was isolated and identified using biochemical tests. Proteins and carotenoids were produced from artichokes and asparagus residues using the R. mucilaginosa yeast. Four substrate concentrations (10, 20, 30, and 40%) and a pH range (5–8.1) were used. They were incubated at 30 °C for 72 h. The results showed that protein and carotenoid yield varied according to pH and substrate concentration. Artichoke residues reached a maximum protein yield of 25.98 mg/g and carotenoids of 159.26 μg/g at pH 5–6.6, respectively. Likewise, the asparagus residue showed a maximum protein yield of 20.22 mg/g and a carotenoid yield of 358.05 μg/g at a pH of 7.1 and 6.6, respectively. This study demonstrated the potential of artichoke and asparagus agro-industrial residues for the production of unicellular proteins and carotenoids using R. mucilaginosa . Further, it represents an appropriate alternative to properly managing agro-industrial waste, giving it an economic value.

Keywords: artichoke; asparagus; bioferments; carotenoids; Rhodotorula mucilaginosa (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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