Effect of Degree of Hydrolysis and Protease Type on the Antioxidant Activity of Protein Hydrolysates From Cuttlefish (<i>Sepia officinalis</i>) By-Products

Ktari, Naourez; Fakhfakh, Nahed; Balti, Rafik; Khaled, Hayet Ben; Nasri, Monçef; Bougatef, Ali

doi:10.1080/10498850.2012.658961

Cited by 47 publications

(34 citation statements)

References 45 publications

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“…The examined hydrolysates showed a reducing power similar to that exhibited by some of the fungi used for foods and pharmaceuticals (Abdullah, Ismail, Aminudin, Shuib, & Lau, 2012). Whereas it was slightly lower than reducing power of hydrolysates of cuttlefish (Sepia officinalis) by-products obtained with various digestive proteolytic enzymes and proteases from bacteria (Ktari et al, 2013). Samples with a high reducing power will be better electron donors (Jayanthi & Lalitha, 2011).…”

Section: Phase Antioxidative Activity Determined By Dpph Methodsmentioning

confidence: 95%

Antioxidant properties of carp (Cyprinus carpio L.) protein ex vivo and in vitro hydrolysates

et al. 2016

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Section: Phase Antioxidative Activity Determined By Dpph Methodsmentioning

confidence: 95%

Antioxidant properties of carp (Cyprinus carpio L.) protein ex vivo and in vitro hydrolysates

et al. 2016

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“…They have diverse applications in a wide variety of industries such as detergent, food, pharmaceutical, leather, peptide synthesis, and for the recovery of silver from used X-ray films (Cowan 1996;Kumar and Takagi 1999). Recent advances in biotechnology have also demonstrated the capacity of proteases to produce fish protein hydrolysates (Ben Khaled et al 2011;Ktari et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Zebra blenny (Salaria basilisca) viscera as a source of solvent-stable proteases: characteristics, potential application in the deproteinization of shrimp wastes and evaluation in liquid laundry commercial detergents

et al. 2012

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The present study describes the characterization of crude protease extract from zebra blenny (Salaria basilisca) and its evaluation in liquid detergent and shrimp waste deproteinization. At least five caseinolytic proteases clear bands were observed in zymogram. The crude alkaline protease showed optimum activity at pH 8.0 and 60°C, and it was highly stable over a wide range of pH from 6.0 to 11.0. Proteolytic enzymes showed extreme stability towards non-ionic surfactants (5 % Tween 80 and 5 % Triton X-100) and oxidizing agents (1 % sodium perborate), and relative stability towards anionic surfactant (1 % Sodium dodecyl sulfate (SDS)). They also showed high stability and compatibility with various laundry liquid detergents from Tunisian market. Furthermore, the crude enzyme was stable towards several organic solvents and retained more than 50 % of its original activity after 30 days of incubation at 30°C in the presence of 50 % (v/v) dimethylsulfoxide (DMSO). Further, proteases from zebra blenny viscera were found to be effective in the deproteinization of shrimp wastes. The protein removal after 3 h at 40°C with an enzyme/substrate ratio (E/S) of 5 U/mg protein was about 77 %.

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“…The DPPH radical scavenging activity of chitosan samples was found in rage of 16.14%–32.76% (approximately 23.68) by Samar, El‐Kalyoubi, Khalaf, and El‐Razik (). Similarly, some researcher indicated that fish proteins have been shown a scavenging effect for free radicals, good electron donor and can terminate the radical chain reactions by converting free radicals into more stable products (García‐Moreno et al., ; Ktari et al., ). The results obtained in this study indicate that spray‐dried fish silages in both groups have antioxidant properties as measured TAO and DPPH radical scavenging assays.…”

Section: Resultsmentioning

confidence: 99%

Chemical, bioactive properties and in vitro digestibility of spray-dried fish silages: Comparison of two discard fish (Equulites klunzingeri and Carassius gibelio ) silages

et al. 2017

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The fermented fish silages produced with Streptococcus spp., Lactobacillus brevis, Lactobacillus plantarum, Pediococcus acidilactici and Enterococcus gallinarum, and formic acid silages were compared for production of two discard fish silages (Equulites klunzingeri and Carassius gibelio). The E/NE ratio of spray-dried fish silages was determined in range of 0.80-1.10 for E. klunzingeri and 0.80-0.90 for C. gibelio silages. Pediococcus acidilactici and En. gallinarum groups had greater antioxidant activity than other silage groups. The DPPH radical scavenging ability was found as 6.14%-14.71% and 6.99%-13.36% for E. klunzingeri and C. gibelio silages, respectively. The OMD, ME and NE L values were determined in range of 69.74%-80.08%, 6.38-8.65 MJ/kg DM and 6.45-7.49 MJ/kg DM, respectively for spray-dried E. klunzingeri silages and 81.18%-86.62%, 8.97-9.61 MJ/kg DM and 7.61-8.08 MJ/kg DM, respectively, for spray-dried C. gibelio silages. According to the nutritional and chemical evaluation, spray-dried fish silages have great potential as a feed components because of high rate of digestibility and nutritious components. K E Y W O R D Santioxidant and antimicrobial activity, Carassius gibelio, Equulites klunzingeri, fish silage, in vitro gas production, LAB, nutritional quality

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Effect of Degree of Hydrolysis and Protease Type on the Antioxidant Activity of Protein Hydrolysates From Cuttlefish (Sepia officinalis) By-Products

Cited by 47 publications

References 45 publications

Antioxidant properties of carp (Cyprinus carpio L.) protein ex vivo and in vitro hydrolysates

Antioxidant properties of carp (Cyprinus carpio L.) protein ex vivo and in vitro hydrolysates

Zebra blenny (Salaria basilisca) viscera as a source of solvent-stable proteases: characteristics, potential application in the deproteinization of shrimp wastes and evaluation in liquid laundry commercial detergents

Chemical, bioactive properties and in vitro digestibility of spray-dried fish silages: Comparison of two discard fish (Equulites klunzingeri and Carassius gibelio ) silages

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