Fractionation of Protein Hydrolysates of Fish Waste Using Membrane Ultrafiltration: Investigation of Antibacterial and Antioxidant Activities

2018 ◽  
Vol 11 (3) ◽  
pp. 1015-1022 ◽  
Author(s):  
Samaneh Pezeshk ◽  
Seyed Mahdi Ojagh ◽  
Masoud Rezaei ◽  
Bahareh Shabanpour
Keyword(s):  
Antioxidant Activities ◽  
Protein Hydrolysates ◽  
Fish Waste

scholarly journals Anti-Atherogenic Effect of 10% Supplementation of Anchovy (Engraulis encrasicolus) Waste Protein Hydrolysates in ApoE-Deficient Mice

Nutrients ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 2137
Author(s):  
Jessica Maria Abbate ◽  
Francesco Macrì ◽  
Francesca Arfuso ◽  
Carmelo Iaria ◽  
Fabiano Capparucci ◽  
...  
Keyword(s):  
Human Health ◽  
Antioxidant Activities ◽  
Protein Hydrolysate ◽  
Protein Hydrolysates ◽  
Metabolic Effects ◽  
Lipid Lowering ◽  
High Frequency Ultrasound ◽  
Aortic Sinus ◽  
Fish Waste ◽  
Plaque Development

Fish protein consumption exerts beneficial metabolic effects on human health, also correlating with a decreased risk for cardiovascular disease. Fish waste contains high amount of proteins and utilization may offer the opportunity for generating compounds advantageous for human health. Especially, fish waste protein hydrolysates beneficially influence pathways involved in body composition, exerting anti-inflammatory and antioxidant activities, making their potential supplementation in human disorders of increased interest. This study assessed the effect of a 10% (w/w) anchovy waste protein hydrolysate (APH) diet for 12 weeks in reducing atherosclerosis in ApoE−/− mice, through histological and immunohistochemical methods. In addition, monitoring of plaque development was performed, using high-frequency ultrasound and magnetic resonance imaging. Overall, the APH diet attenuated atherosclerotic plaque development, producing a regression of arterial lesions over time (p < 0.05). Twelve weeks on an APH diet had an anti-obesity effect, improving lipid metabolism and reducing hepatic enzyme activity. A significant reduction in plaque size and lipid content was observed in the aortic sinus of APH-fed mice, compared to the control (p < 0.001), whereas no differences in the extracellular matrix and macrophage recruitment were observed. Supplementation of APH significantly attenuates atherosclerosis in ApoE−/− mice, exerting a lipid-lowering activity. The opportunity to use fish waste protein hydrolysates as a nutraceutical in atherosclerosis is worthy of future investigations, representing a low cost, sustainable, and nutritional strategy with minimal environmental impact.

scholarly journals Enzymatic hydrolysis of chicken viscera proteins in the presence of an ionic liquid as a strategy to improve the antioxidant properties of the hydrolysates

2019 ◽  
Author(s):  
Vitor Geniselli da Silva ◽  
Ruann Janser Soares de Castro
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Enzymatic Hydrolysis ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Protein Hydrolysates ◽  
Tetramethylammonium Bromide ◽  
Chicken Viscera ◽  
Hydrolysis Of

Aiming to explore the use of ionic liquids (ILs) not yet described in the literature, this work evaluated the hydrolysis of proteins from chicken viscera using the protease Alcalase modified and unmodified by the IL tetramethylammonium bromide. The protein hydrolysates produced in the presence of the IL presented values of antioxidant activities 40% higher than the hydrolysates obtained without IL. In addition, with the presence of the IL, it was possible to obtain protein hydrolysates from chicken viscera with similar antioxidant activities, compared to the protein hydrolysates produced without IL, using 1/3 of the amount of enzyme.

Antioxidant Properties of Microalgae Protein Hydrolysates Prepared by Neutral Protease Digestion

2014 ◽  
Vol 707 ◽  
pp. 149-153 ◽  
Author(s):  
Xiao Hu ◽  
Xian Qing Yang ◽  
Lai Hao Li ◽  
Yan Yan Wu ◽  
Wan Ling Lin ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Protein Hydrolysates ◽  
Neutral Protease ◽  
Degree Of Hydrolysis ◽  
Protease Digestion ◽  
Hydrolysis Of

Microalgae protein hydrolysates (MPH) were obtained by enzymatic hydrolysis of defatted microalgae meal using neutral protease. The protein recovery, degree of hydrolysis, and the antioxidant activities of the hydrolysates were investigated. The results demonstrated that hydrolysates prepared by neutral protease at 50 °C for 4 h exhibited the strongest antioxidant activity. Under these conditions, the 1,1-diphenyl-2-picrylhydrazyl (DPPH), hydroxyl radical scavenging activity and the reducing power of the hydrolysates were 68.3%, 50.8% and 1.303, respectively.

Stability and antioxidant activities of corn protein hydrolysates under simulated gastrointestinal digestion

2018 ◽  
Vol 95 (6) ◽  
pp. 760-769 ◽  
Author(s):  
Xiaofeng Ren ◽  
Qiufang Liang ◽  
Xi Zhang ◽  
Ting Hou ◽  
Suyun Li ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Protein Hydrolysates ◽  
Gastrointestinal Digestion ◽  
Simulated Gastrointestinal Digestion ◽  
Corn Protein
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