Jose, Joseph; Dr.Gopakumar, K(Cochin University Of Science And Technology, August 21, 1989)
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Abstract:
Frozen storage characteristics and shelflife vary
considerably among species as well as within the species
(Powrie, 1973; Fennema. 1973). This can be attributed to the
variation in the composition of fish among various species.
In certain species like sardines and mackerel. wide seasonal
variation in chemical composition occur within the species.
These variations affect the quality and shelflife. The
nutritional level of water. spawning, method of catching,
struggling etc. are found to have profound influence on the
condition of the fresh fish.
Soon after death the deteriorative changes in fish start
due to autolysis and bacterial growth. The rate of these
changes depends mainly on temperature. The handling methods
have great influence on bacterial contamination. Thus the type
oi'handling. temperature control. period of chill storage.
processing methods. type of freezing, condition of frozen
storage and period of storage affect the quality and shelflife
Of the fisho
In the present study extensive investigations were
carried out on various factors affecting the quality of fish
as well as their effect on the physical. chemical and sensory
qualities of fish during frozen storage and the shelflife
Description:
Central Institute Of Fisheries Technology,Cochin University Of Science And Technology
Hatha, A A M; Nishamol, S; Varghese, R; Suchitra, R(Journal of Advances in Developmental Research, June , 2012)
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Abstract:
Present study is focused on the spatiotemporal variation of the microbial population (bacteria,
fungus and actinomycetes) in the grassland soils of tropical montane forest and its relation with
important soil physico-chemical characteristics and nutrients. Different physico-chemical properties
of the soil such as temperature, moisture content, organic carbon, available nitrogen, available
phosphorous and available potassium have been studied. Results of the present study revealed that
both microbial load and soil characteristics showed spatiotemporal variation. Microbial population of
the grassland soils were characterized by high load of bacteria followed by fungus and actinomycetes.
Microbial load was high during pre monsoon season, followed by post monsoon and monsoon. The
microbial load varied with important soil physico-chemical properties and nutrients. Organic carbon
content, available nitrogen and available phosphorous were positively correlated with bacterial load
and the correlation is significant at 0.05 and 0.01 levels respectively. Available nitrogen and available
phosphorous were positively correlated with fungus at 0.05 level significance. Moisture content was
negatively correlated with actinomycetes at 0.01 level of significance. Organic carbon negatively correlated
with actinomycetes load at 0.05 level of significance