Assesment of quality of fish landed at the cochin fisheries harbour
Assesment of quality of fish landed at the cochin fisheries harbour
Date
1984
Authors
Lakshmanan, P.T.
Mathen, C.
Varma, P.R.G
Iyer, T.S.G.
Journal Title
Journal ISSN
Volume Title
Publisher
Society of FisheriesTechnologists (India), Cochin
Abstract
Assessment of quality of fish and shrimps landed at the Fish Harbour, Cochin was
made over the period January, 1980 to December, 1982 . A total of 201 samples were
analysed . Nearly 75% of the samples scored between 6-10 in a 10 point hedonic scale
and the percentage unacceptability based on sensory assessment was 5.5% . In 10 .1
of the samples, total volatile nitrogen was >30 mg% and in 8 .3% of the samples trimethylamine-
nitrogen was > 10 mg% . Both, the gr Torrymeter and Intellectron Fish
Tester VI readings marked significant correlation with sensory scores and chemical
indices; but failed to bear any significant correlation with bacterial counts . Of the
total samples 66.7% had total plate count (TPC) >10 5 9 l and 8.5% were considered
unacceptable based on TPC >5 x 10 5g- 1 ; 63.2% of the samples were free from
Escherichia coli ; 26.4% had >20 E. coil g -1 and 20 .4% of the samples contained faecal
streptococci >103 g-1 . Seven percent of the samples showed coagulase positive
staphylococci >100g - 1 . Salmonella could not be detected in any of the samples
examined. Crushed ice samples and the platform of the harbour had high bacterial
loads .
Description
Keywords
quality, fresh fish
Citation
Fishery Technology 1984: 21, 98-105