Ultrafiltration for the recovery of proteins from surimi washing water

Autor(es)

Dayse Lícia de OLIVEIRA ^[1] ; Thiago Luís Magnani GRASSI ^[2] ; Natália Mingues PAIVA ^[3] ; Bruna Nicoleti SANTANA ^[4] ; Alex Akira NAKAMURA ^[5] ; Rubén BERMEJO-POZA ^[6] ; Elisa Helena Giglio PONSANO ^[7]

Afiliação do(s) autor(es)

^[1] Universidade Estadual Paulista “Júlio de Mesquita Filho”. Faculdade de Medicina Veterinária - Brasil

^[2] Universidade Estadual Paulista “Júlio de Mesquita Filho”. Faculdade de Medicina Veterinária - Brasil

^[3] Universidade Estadual Paulista “Júlio de Mesquita Filho”. Faculdade de Medicina Veterinária - Brasil

^[4] Universidade Estadual Paulista “Júlio de Mesquita Filho”. Faculdade de Medicina Veterinária - Brasil

^[5] Universidade Estadual Paulista “Júlio de Mesquita Filho”. Faculdade de Medicina Veterinária - Brasil

^[6] Universidad Politécnica de Madrid. Facultad de Ingeniería Agronómica-UNE - Espanha

^[7] Universidade Estadual Paulista “Júlio de Mesquita Filho”. Faculdade de Medicina Veterinária - Brasil

• Tipo de documento: Artigo Científico
• Fonte: FOOD SCIENCE AND TECHNOLOGY; v. 41, p. 458-464, 2020-10-09.

Resumo

Abstract The aim of this study was to evaluate the efficiency of the ultrafiltration process (UF) in the cleansing treatment of the tilapia surimi washing water and in the recovery of components. After producing surimi, the water generated in the washing operations was subjected to UF in a 30 kDa polyethersulfone membrane. Unfiltered washing waters and UF permeate and concentrate were analyzed for pH, total solids (TS) and fixed solids (FS), total proteins, and lipids. The chemical oxygen demand (COD) was determined in the original water and in the permeate. The concentrate was dehydrated in a spray dryer and analyzed for amino acids and carotenoids. The permeate showed a significant decrease in TS, proteins and COD, indicating that UF was efficient in removing the organic load from the waters. The percentage of protein recovery by UF was 93.12% and the dehydrated concentrate had all the essential amino acids, being leucine (5.47%), lysine (6.49%), valine (3.59%), and phenylalanine (3.68%) those with the highest concentrations, and also 0.67 mg/100 g of carotenoids. The application of UF has proved to be viable both in the recovery of valuable compounds and in the decontamination of water, contributing to the sustainability of the fish productive sector. (AU)

• Processo FAPESP: 15/25853-1 - Uso de resíduos agroindustriais contendo substâncias com atividade biológica em alimentação animal e humana
• Beneficiário: Elisa Helena Giglio Ponsano
• Modalidade de apoio: Auxílio à Pesquisa - Regular