Effects of ascorbic acid and erythorbic acid on melanosis and quality in different shrimp species

Bulent Toktas,Nalan Gokoglu

doi:10.29103/aa.v7i2.2527

Bulent Toktas, Nalan Gokoglu

Open Access

https://doi.org/10.29103/aa.v7i2.2527

Copy DOI

Abstract

With this study, ascorbic acid and erythorbic acid were used for the first time to prevent melanosis in shrimp. Three shrimp species (Aristaeomorpha foliacea, Plesionika edwardsi and Melicertus hathor) were used. It was determined that melanosis scores were higher in the control groups. Combination of ascorbic acid and erythorbic acid with metabisulphite was found to be more effective in inhibiting of melanosis than the application alone. No significant differences were found between the groups in terms of TVB-N values. The TMA-N value of the control group was significantly higher than those of application groups. Ascorbic acid, Erythorbic acid and their combinations with sodium metabisulphite were found effective on inhibition of melanosis and quality changes in three shrimp species.Keywords: reducing agents; ascorbic acid; erythorbic acid; melanosis; quality; shrimp

Highlights

Shrimps are degradable products due to microbial spoilage and melanosis (Martinez-Alvarez et al, 2005)
When the shrimp species were compared, the lowest melanosis scores were determined for P. edwardsi (p
When the shrimp species were compared, the highest Total volatile basic nitrogen (TVB-N) value was determined as P. edwardsi and the TVB-N values of A. foliacea and M. hathor species were found to be lower (p

Summary

Introduction

Shrimps are degradable products due to microbial spoilage and melanosis (Martinez-Alvarez et al, 2005). In the formation of melanosis, phenols are oxidized to the quinones by the enzyme polyphenol oxidase This mechanism is followed by nonenzymatic polymerization of quinones, which causes high molecular weight and dark or black pigments (Montero et al, 2005). Because of the frequent allergic reactions that cause health problems in humans, it is being investigated whether there are natural alternatives to the Melanosis inhibitors are grouped according to their field of activity. These are acidifiers, chelating agents, reducing agents and enzyme inhibitors. There have been no studies on the use of shrimps

Methods

Findings

Discussion

Conclusion