Nucleotide degradation of pearl spot during medified atmosphere storage
Nucleotide degradation of pearl spot during medified atmosphere storage
Date
2006
Authors
Srinivasa Gopal, T.K.
Jose, L.
Manju, S.
Kamalakanth, C.K.
Ravishankar, C.N.
Kumar, K.A.
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologis(India)
Abstract
The effect of modified atmosphere packaging (MAP) at different gas concentration on chill
stored pearl spot (Etroplus suratensis Bloch) was examined by means of nucleotide degradation and
sensory evaluation. K value, a quality index for fish, the ratio of the sum of inosine and hypoxanthine
to the sum of ATP and related catabolites expressed as a percentage, was determined until sensory
rejection during storage up to 23 days at 0 - 20C. The C02
concentration did not affect the K values of
pearl spot. K value increased linearly in samples stored under air and four different modified
atmospheres. Identical K values were obtained for Pearl spot packed in either aerobic or carbon
dioxide modified atmosphere. K values were independent of sensory spoilage and correlate only
with the length of storage of pearl spot packed under MAP.
Description
Keywords
modified atmosphere packaging, pearl spot, K value, polyester/polyethylene laminate
Citation
Fish Technol. 43(2): 162-167