Quality Evaluation of Spray-Dried Shell Protein Derived from Flower Tail Shrimp (Metapenaeus dobsoni)

Abstract

The current practice for the utilization of shrimp waste is mainly for the extraction of chitin and chitosan. However, during production of chitin, protein present in the shells are not utilized properly and it can be recovered mechanically. In the present study, the shrimp shell protein was extracted from Metapenaeus dobsoni by mechanical process and spray dried. The proximate composition and chemical quality parameters (TVBN, TMAN, PV, FFA, and TBA) of shrimp shell, Shrimp Shell Protein Solution (SSPS), and spray-dried Shrimp Shell Protein Powder (SSPP) were evaluated. Functional properties such as foaming capacity, foam stability, water absorption capacity, oil absorption capacity, hygroscopicity, and flow properties of SSPP were also investigated. The TVBN, TMAN, PV, FFA, and TBA values of shrimp shell, SSPS, and SSPP were found to be within acceptable limits. Higher protein content was found in SSPP (57.26±0.50% on wet basis) than in SSPS (8.95±0.18% on wet basis), the result suggested that SSPP can be incorporated as a good source of protein in food products.