Browsing by Author "Sirvas-Cornejo, Susana"

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Biotechnological deproteinization of shrimp waste (Litopenaeus vannamei) using bacterial consortia
(Elsevier BV, 2024-9) Sirvas-Cornejo, Susana; Perochena-Escalante, Eduardo; Buleje-Alfaro, Vanesa
Deproteinization of shrimp waste (Litopenaeus vannamei) was achieved by biotechnological treatment using bacterial consortia. Five bacterial consortia (CB01, CB02, CB03, CB04 and CB05) were separately evaluated under a factorial design 23, including the effect of temperature (25 and 35 °C), time (16 and 24 h) and volume of inoculum (2 and 6 mL × 107 CFU/mL). Bacterial consortium CB05 showed the highest deproteinization (DP) effect. The best response was achieved at 35 °C, 6 × 107 CFU/mL, and 16 h of bioprocess. Protein content was reduced by 99.5 %. © 2024 Elsevier B.V., All rights reserved.
Biotechnological recovery of chitin from crustacean waste
(Universidad Nacional Mayor de San Marcos, Vicerectorado de Investigacion, 2020-3-4) Sirvas-Cornejo, Susana; Perochena-Escalante, Eduardo
Reviews on biotechnological chitin recovery from crustacean waste and other sources acknowledge. Most of the reviews conclude that although important results on chitin recovery have been achieved, there is still a need for better approaches to improve operational conditions of deproteinization and demineralization processes, such as time, carbon source, pH (initial and during fermentation), volume of inoculum, temperature, among others, in order to apply at industrial level, a bioprocess commercially and environmentally cost/effective viable. The present review aims to gather the most updated available information about research on biotechnological methods to recover chitin from crustacean waste, studied during the past 10 years, focussing on conditions applied to deproteinization (DP) and demineralization (DM), particularly on bioprocessing times and microbial species.