scholarly journals Intracellular ethanol‐mediated oxidation and apoptosis in HepG2/CYP2E1 cells impaired by two active peptides from seahorse ( Hippocampus kuda bleeler) protein hydrolysates via the Nrf2/HO‐1 and akt pathways

2021 ◽  
Author(s):  
Zhong‐Ji Qian ◽  
Mei‐Fang Chen ◽  
Jiali Chen ◽  
Yi Zhang ◽  
Chunxia Zhou ◽  
...  
Keyword(s):  
Protein Hydrolysates ◽  
Active Peptides ◽  
Hippocampus Kuda ◽  
Mediated Oxidation

Improvements in Functionalities of Porcine Serum Protein Hydrolysates Induced by Free Hydroxyl Radical

2012 ◽  
Vol 554-556 ◽  
pp. 1487-1492
Author(s):  
He Hong Yang ◽  
Pei Jun Li ◽  
Bao Hua Kong ◽  
Yan Qing Li ◽  
Ju Yang Zhao ◽  
...  
Keyword(s):  
Hydroxyl Radical ◽  
Functional Properties ◽  
Plasma Protein ◽  
Food Systems ◽  
Activity Index ◽  
Early Stage ◽  
Protein Hydrolysates ◽  
Free Hydroxyl ◽  
Foaming Capacity ◽  
Mediated Oxidation

Hydrolysated peptides from kinds of proteins have been applied as natural ingredients in food industry, mainly due to their good functional properties. However, the fate of them under different processing conditions is rarely understood. In our study, changes of functional properties in porcine plasma protein hydrolysates (PPH) were evaluated in a free hydroxyl radical-mediated oxidation system. PPH was obtained by hydrolyzing porcine plasma protein with Alcalase for 5 h at pH 8.0, 55°C. When exposed to free radical-mediated oxidation, functional properties of PPH improved dramatically with growing oxidant concentrations and reaction time, especially at 20°C. Solubility, foaming capacity and emulsification of PPH increased significantly (P < 0.05) during early stage of oxidation, with solubility increasing from 83.1% (non-oxidized PPH) to 97.4%(20°C, 10mM H2OSubscript text2, 5 h), emulsifying activity index and foaming capacity rising form 1.24m2/g to 2.73 m2/g, and 144% to183%, respectively. Stability for emulsifying and foaming were also found to be reinforced. The improvements in functional properties of PPH helped to play theoretical basis for applying the peptides in food systems.

scholarly journals Hypolipidemic effects of protein hydrolysates from Trachinotus ovatus and identification of peptides implied in bile acid-binding activity using LC-ESI-Q-TOF-MS/MS

RSC Advances ◽  
2020 ◽  
Vol 10 (34) ◽  
pp. 20098-20109
Author(s):  
Peng Wan ◽  
Deke Chen ◽  
Hua Chen ◽  
Xiaolian Zhu ◽  
Xin Chen ◽  
...  
Keyword(s):  
Bile Acid ◽  
Binding Activity ◽  
Protein Hydrolysates ◽  
Hypolipidemic Effect ◽  
Trachinotus Ovatus ◽  
Active Peptides ◽  
Bile Acid Binding ◽  
First Time ◽  
Tof Ms

For the first time, the hypolipidemic effect of Trachinotus ovatus protein hydrolysates was obtained and its active peptides were identified.

The Effect of Intravenous Protein Hydrolysates on the Stomach

1949 ◽  
Vol 12 (4) ◽  
pp. 586-596 ◽  
Author(s):  
Mitchell Zweig ◽  
Karl A. Meyer ◽  
Frederick Steigmann
Keyword(s):  
Protein Hydrolysates

Analytical methods for estimating protein hydrolysates quality

2003 ◽  
Vol 32 (2) ◽  
pp. 193-204 ◽  
Author(s):  
B. Wróblewska ◽  
M. Karamać
Keyword(s):  
Analytical Methods ◽  
Protein Hydrolysates

Effect of fish-scale protein hydrolysates-based films on preservation of crucian carp(Carassius auratus)

2012 ◽  
Vol 35 (7) ◽  
pp. 1113-1119 ◽  
Author(s):  
Kai-feng LI ◽  
Yong-kang LUO ◽  
Qi-chao FENG ◽  
Lei YAO
Keyword(s):  
Carassius Auratus ◽  
Crucian Carp ◽  
Protein Hydrolysates ◽  
Fish Scale

Isolation of a Calcium-binding Peptide from Chlorella Protein Hydrolysates

2010 ◽  
Vol 15 (4) ◽  
pp. 282-286 ◽  
Author(s):  
So-Jeong Jeon ◽  
Ji-Hye Lee ◽  
Kyung-Bin Song
Keyword(s):  
Calcium Binding ◽  
Protein Hydrolysates ◽  
Binding Peptide

Enzymes as a Reservoir of Host Defence Peptides

2020 ◽  
Vol 20 (14) ◽  
pp. 1310-1323
Author(s):  
Andrea Bosso ◽  
Antimo Di Maro ◽  
Valeria Cafaro ◽  
Alberto Di Donato ◽  
Eugenio Notomista ◽  
...  
Keyword(s):  
Innate Immunity ◽  
Biological Activity ◽  
Internal Structure ◽  
Catalytic Properties ◽  
Cellular Responses ◽  
Host Defence ◽  
Present Review ◽  
Active Peptides ◽  
Wide Range

Host defence peptides (HDPs) are powerful modulators of cellular responses to various types of insults caused by pathogen agents. To date, a wide range of HDPs, from species of different kingdoms including bacteria, plant and animal with extreme diversity in structure and biological activity, have been described. Apart from a limited number of peptides ribosomally synthesized, a large number of promising and multifunctional HDPs have been identified within protein precursors, with properties not necessarily related to innate immunity, consolidating the fascinating hypothesis that proteins have a second or even multiple biological mission in the form of one or more bio-active peptides. Among these precursors, enzymes constitute certainly an interesting group, because most of them are mainly globular and characterized by a fine specific internal structure closely related to their catalytic properties and also because they are yet little considered as potential HDP releasing proteins. In this regard, the main aim of the present review is to describe a panel of HDPs, identified in all canonical classes of enzymes, and to provide a detailed description on hydrolases and their corresponding HDPs, as there seems to exist a striking link between these structurally sophisticated catalysts and their high content in cationic and amphipathic cryptic peptides.

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