Effective Treatment of Curry (Murraya koenigii) and Moringa (Moringa oleifera) Leaves Extracts on Melanosis of Pacific White Shrimp (Litopenaeus vannamei) during Chilled Storage

ABSTRACT

This study investigated the treatment effect of curry leaves extract (CLE) and moringa leaves extract (MLE) on the melanosis of Pacific white shrimp during 15 days of chilled storage. These extracts have a high number of phytochemicals that have various therapeutic potentials. In this study, shrimp samples were divided into 4 groups; 1% CLE treated, 1% MLE treated, 1:1 (CLE+MLE) treated and control, and stored for 15 days. Biochemical indices and microbiological analysis wereperformedat 3 days interval. In this study, both extracts showed significant results on chemical indices, but highest qualitative results were obtained by the 1:1 (CLE+MLE) treated group. Among the treated groups, 1:1 (CLE+MLE) had a greater effect on microbial spoilage in comparison with the control group. This study revealed that CLE and MLE contain a variety of phytochemicals withdifferent properties that could be utilized as a natural substitute for synthetic antimelanosic agents used to control melanosis in shrimp.

KEYWORDS:

• Curry leaves extract
• moringa leaves extract
• quality changes of shrimp
• melanosis
• Pacific white shrimp

Acknowledgments

We would like to thank Department of Fish Processing Technology at Kerala University of Fisheries and Ocean Studies, Kochi for their assistance with the experiments. We wish to show for my appreciation to Dr. Kunju Muhammed, head librarian, KUFOS. We would like to thank Dr. Sreeja Lakshmi for her support and encouragements.

Disclosure statement

No potential conflict of interest was reported by the author(s).