title: Fish peptone development using enzymatic hydrolysis of silver carp by-products as a nitrogen source in Staphylococcus aureus media.
abstract: Fish peptone was produced using enzymatic hydrolysis of silver carp filleting by-products by alcalase and trypsin. Also, the efficiency of the hydrolysates as a nitrogen source in Staphylococcus aureus medium was compared with commercial TSB. The results indicated that the protein hydrolysate from alcalase and trypsin had high protein content (92.92%, 91.53 respectively), and degree of hydrolysis (4.94%, 4.6% respectively).The results showed that silver carp filleting waste can be an efficient source for fish peptone production as a nitrogen source for S. aureus medium. However, the type of the used proteolytic enzyme considerably affected the performance of the resulting peptone despite the same DH. Fish peptone produced by alcalese performed significantly (P < 0.05) better than commercial TSB as a media for the bacteria while the performance of the trypsin peptone was not as good as the commercial medium.
authors.affiliation: Student of Fisheries, Qaemshahr Branch, Islamic Azad University Qaemshahr, Iran.
authors.forename: Meysam
authors.initials: M
authors.lastname: Fallah
authors.affiliation: Department of Fisheries, Qaemshahr Branch, Islamic Azad University Qaemshahr, Iran.
authors.forename: Somayeh
authors.initials: S
authors.lastname: Bahram
authors.affiliation: Department of Fisheries, Qaemshahr Branch, Islamic Azad University Qaemshahr, Iran.
authors.forename: Seyed Roholla
authors.initials: SR
authors.lastname: Javadian
keywords: Fish peptone; Staphylococcus aureus; fish protein hydrolysate; silver carp by-products
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