Chilled storage studies of coated products developed from pacific white leg shrimp (Litopenaeus vannamei, Boone, 1931) and their shelf life evaluation

Abstract

Litopenaeus vannamei is the most commonly cultured shrimp in Southeast Asia and Latin America, standing for over 90 per cent of total shrimp production. In India, the total production of vannamei shrimp reached 4,06,018 MT in 2015-16 recording an increase of 52,605 MT from the previous year and contributing about 81 per cent of the total aquaculture production. Shimps are the major export items in the form of raw frozen, cooked frozen, IQF etc. This study is an attempt to reconnoiter the potentials of better utilization of this species by development of battered and breaded products. Quality evaluation and shelf life studies were conducted for the products developed from farm caught L. vannamei under chilled storage. Shrimps were cleaned in two styles , and it is battered, breaded, flash fried, packed and stored . The products were evaluated for the physical, chemical, sensory and microbiological quality attributes. There was a significant decrease in the sensory scores during storage, and levels of other quality indices increased significantly for both the products. The total aerobic plate count did not exceeded 5 log 10 CFU per gram during the 15th day of the study. Coated butterfly and coated P.D. shrimps had a good shelf life of 15 days in chilled storage.