Scientific Transactions in Environment and Technovation Journal(STET), 01 Aug 2022 | 10.56343/STET.
Year : 2017 | Volume: 10 | Issue: 4 | Pages : 209-212

Screening of Osmotolerant microorganisms in the dry fishes of Kerala

Salting is traditional way of preserving fish and prawns all over the world.The present investigation was aimed to
analyse the presence of osmotolerant microbes in the dry fishes and the safety of the product. Samples of dry fish
varieties such as ‘Mandhal’, ‘Ayila’, ‘Chemeen’, ‘Sravu’ and ‘Khozhuva’ were collected from three main markets of
Kerala, including Kollam, Talechery and Calicut in three different seasons. The bacterial pathogens such as E.coli (35%),
Bacillus cereus (25%), Klebsiella spp (15%), Micrococcus spp.(10%), Enterobacter spp.(10%) and Staphylococcus aureus (5%) were found in almost all the dry fishes. In the case of dry prawns collected from Kollam and Calicut markets E.coli (45%), Bacillus cereus pp.(20%),Vibrio cholera(15%), Vibrio parahemolyticus (10%), Shigella spp.(5%) and Staphylococcus aureus (5%) were observed. The predominant fungi including Aspergillus niger, Aspergillus flavus, Penicillium spp, Aspergillus fumigatus and Mucor sp. were isolated from all the four samples whereas Ayila carried only Aspergillus fumigatus. No fungal contamination was seen in shrimps. The MPN readings for fecal indicators varied with the seasons. The fungal species A. fumigates and A. flavus were dominant in the dried sea foods of all the seasons. The presence of microorganisms in these salted fishes indicates the osmotolerance potential of microorganism. It finally leads to reduction in the quality of the dried fishes. The contamination may be due to improper drying, poor hygienic processing, inadequate salting and improper packaging and transportation of the dried fishes.

Keywords: Sun dried seafood’s, Microbiological Analysis, Safety, Poor hygiene, fecal indicators

Citation: *, ( 2017), Screening of Osmotolerant microorganisms in the dry fishes of Kerala. Scientific Transactions in Environment and Technovation Journal(STET), 10(4): 209-212

Received: 09/01/2016; Accepted: 01/04/2017;
Published: 01/08/2022

Edited by:

Reviewed by:

*Correspondence: Dhiva