Paper Information

Journal:   IRANIAN SCIENTIFIC FISHERIES JOURNAL   WINTER 2011 , Volume 19 , Number 4 (73); Page(s) 21 To 32.
 
Paper:  PRODUCTION OF SINGLE CELL PROTEIN FROM STICKWATER OF KILKA FISH MEAL FACTORY USING LACTOBACILLUS ACIDOPHILUS AND ASPERGILLUS NIGER
 
Author(s):  BEBEKAM S., ABEDIAN A.M.*, YOUNESI H.
 
* FACULTY OF NATURAL RESOURCES AND MARINE SCIENCES, TARBIAT MODARES UNIVERSITY, NOOR, IRAN
 
Abstract: 
We investigated production of single cell protein (SCP) from stickwater of kilka fish meal factory as medium usingLactobacillus acidophilus and Aspergillus niger. Stickwater was used instead of the standard media of bacterium and fungus in a batch culture method.
Amount of biomass, COD, RNA and protein in the bacterium and fungus in control and stickwater treatments were investigated. In maximum growth time, amino acids profile of the bacterium and fungus were measured and compared between treatments. Bacterial biomass production in the control and stickwater treatments were 3.16 and 5.12g/1, COD reduction was 33270 and 53330mg/1, the measured RNA were 15.27% and 15.04%, the amount of protein were 71.13% and 68.37%, respectively. The difference between bacterium and fungus biomass production was slight. We found that the amount of the fungus biomass in control and stickwater were 6.31 and 7.28g/1, COD reduction were 47800 and 55200mg/1, RNA was 9.36% and 9.09%, the amount of protein were 51.36% and 48.66%, respectively. In both bacterium and fungus, the maximum and minimum amount of amino acid of the control and stick water was glutamic acid and methionin. The amount of methionin in bacterium was not different with fish meal and FAa reference and in fungus was a little lower than FAO reference. According to the results, application of pure stickwater was suitable for production of Lactobacillus acidophilus and Aspergillus niger.
 
Keyword(s): BIOMASS, MICROORGANISM, STICKWATER, AMINO ACIDS
 
References: 
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