Use of Torrymeter for measurement of freshness of some commercially important Indian marine fishes
Use of Torrymeter for measurement of freshness of some commercially important Indian marine fishes
Date
1994
Authors
Ravishankar, C.N.
Setty, T.M.R.
Shetty, T.S.
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Abstract
The freshness of mackerel (Rastrelliger kanagurta), oil sardine {Sardinella longiceps), common
shark (Scoliodon laticadus), croaker (Johnius sp.). lizard fish (Saurida tumbil) and seer fish
(Scomberomorws commerson), iced immediately after catch, was assesed by using Torrymeier as well
as by other biochemical and microbiological tests and compared with sensory scores obtained. The
Torrymeter readings generally showed good correlation with sensory scores for all the species studied
except shark. The decrease of Torrymeter readings was fairly consistant and gradual only in initial
storage period, indicating the usefulness of Torrymeter in measuring the initial loss of freshness of icestored
fish. It was observed that fat content of fish in some way interferes with the reading of the
instrument.
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Citation
Indian J. Fish 41(1):28-32