Insects or products derived from insects are considered as a valuable feed ingredient for aquaculture, poultry, and pigs but also exert possible secondary effects of health stimulators in livestock reported literature. Health benefits attributed to can create additional value the insect chain. Three categories bioactive compounds this desk study: antimicrobial peptides (such ?-helical peptides,...

Oral administration of food protein hydrolysate and naturally occurring peptides exert beneficial effects beyond conventional nutritional functions by supplying amino acids for synthesis. These are referred to as food-derived bioactive peptides. The coronavirus disease 2019 (COVID-19) is caused sever acute respiratory syndrome 2 (SARS-CoV-2) infection. Some host viral proteins involved in the e...

Influence of amino acid compositions and peptide profiles on antioxidant capacities of two protein hydrolysates from skipjack tuna (Katsuwonus pelamis) dark muscle was investigated. Dark muscles from skipjack tuna were hydrolyzed using five separate proteases, including pepsin, trypsin, Neutrase, papain and Alcalase. Two hydrolysates, ATH and NTH, prepared using Alcalase and Neutrase, respectiv...

Ovalbumin-derived peptides IFYCPIAIM, NIFYCPIAIM and YCPIAIMSA, containing a common region YCPIAIM, were previously identified as aggregation-prone with variable fibril formation. In this study, we elucidated self-assembly mechanisms of the peptides, by determining influence on sulfhydryl group accessibility. The free content antioxidant capacity results demonstrate that assemble into β-sheets,...

Functional and nutritional properties of baked goods can be enhanced by the use sourdough fermentation, which is defined as a mixture water flour fermented lactobacilli (LAB) yeasts. Previous data highlighted ability sourdoughs obtained with selected LAB strains commercial to produce bioactive peptides equipped antioxidant anti-inflammatory properties. More recently, it has been proven that cho...

Quantum chemical methods allow screening and prediction of peptide antioxidant activity on the basis of known experimental data. It can be used to design the selective proteolysis of protein sources in order to obtain products with antioxidant activity. Molecular geometry and electronic descriptors of redox-active amino acids, as well as tyrosine and methionine-containing dipeptides, were studi...

The secretory peptides luteinizing hormone-releasing hormone, enkephalin, angiotensin, and oxytocin are biochemical antioxidants in aqueous medium. These hormones scavenge free peroxyl radicals, prevent the oxidation of low-density lipoprotein, and inhibit lipid peroxidation in brain membranes. Their capacity to directly suppress free radical-mediated reactions is demonstrated by electron-spin ...

Heat pre-treated and non heat pre-treated whey protein isolate (WPI) were hydrolysed using α-chymotrypsin (chymotrypsin), pepsin and trypsin. The in vitro antioxidant activity, ACE-inhibition activity and surface hydrophobicities of the hydrolysates were measured in order to determine if peptides with dual functionalities were present. Dual functional peptides have both biological (e.g. antioxi...

Oceanic environments are one of the largest sources bioactive molecules, due to high degree biodiversity and innumerable ecological relationships established between macro microorganisms found in different ecosystems these complex environments. Marine organisms being studied increasingly because they considered important producers biologically active peptides. Peptides extracted from marine hav...

Acid soluble collagen (ASC) from scales of croceine croaker (ASC-C) was successfully isolated with the yield of 0.37% ± 0.08% (dry weight basis), and characterized as type I collagen on the basis of amino acid analysis and electrophoretic pattern. The antioxidant hydrolysate of ASC-C (ACH) was prepared through a two-stage in vitro digestion (4-h trypsin followed by 4-h pepsin), and three antiox...