Heat-induced gel properties and gastrointestinal digestive properties of egg white produced by hens fed with selenium-enriched yeast

Egg Yolk Selenopeptides: Preparation, Characterization, and Immunomodulatory Activity

“…The stomach phase involved adding 600 mg of Se-EYPs to 30 mL of simulated gastric fluids (pepsin 200 U/mL, 75 mmol/L NaCl), adjusting to pH 2.0 using a 1 M HCl solution, and preheating at 37 °C for 10 min. The samples were then incubated in a temperature-controlled water bath shaker at 37 °C for 2 h. The small intestine phase involved adjusting the gastric digest to pH 7.0 and then adding an equal volume of simulated intestinal fluids (trypsin 100 U/mL, 12 g/L porcine bile salt, 8.8 g/L NaCl, 6.8 g/L KH 2 PO 4 ) and digesting at 37 °C for 2 h. − …”

Selenium- and/or Zinc-Enriched Egg Diet Improves Oxidative Damage and Regulates Gut Microbiota in D-Gal-Induced Aging Mice

“…According to the determination standards of moisture, ash, protein, total lipid, and phospholipids in food formulated by the People’s Republic of China, egg powder was detected by the direct drying method [ 18 ], burning method [ 19 ], Kjeldahl method [ 20 ], Soxhlet extraction method [ 21 ], and moly-blue colorimetric method [ 22 ], respectively. The total sugar content in the samples was detected by the phenol–sulfuric acid method [ 17 ]. Each sample was analyzed in triplicate.…”

“…Importantly, eggs have many physiological functions that are beneficial to human health, such as immunomodulation, anticancer activity, antioxidant activity, anti-inflammatory activity, antihypertensive effect, and promotion of bone health [ 15 ], and the key to the performance of these functions is the presence of ovalbumin, ovoglobulin, phosphatide, and other active substances in eggs [ 16 ]. At present, the enrichment and conversion of Se and Zn to an organic state through plants and animals are innovative means to improve mineral potency, and egg organic conversion is one of the more efficient ways [ 17 ]. However, the nutritional functions and biological activities of Se- and/or Zn-enriched egg (SZE) have been less evaluated at this stage.…”

A review on selenium-enriched proteins: preparation, purification, identification, bioavailability, bioactivities and application

“…51 Se-Enriched egg white protein could produce more small molecular peptides and free amino acids during the process of gastrointestinal digestion in comparison with egg white protein, which might be due to the change of the protein structure by Se. 52 Moreover, Se-protein isolated from Ganoderma lucidum could reduce the accumulation of Se in liver tissue and increase the Se content in the serum of asthmatic mice, which indicated that Se-protein could improve the bioavailability of Se in mice. 53 As shown in Fig.…”