Microencapsulation with hydrocolloids as a modern technique has been used to prolong the survival of probiotics during exposure to harsh conditions. In this study, alginate-Hylon starch microcapsules with genipin cross-linked chitosan and poly-L-lysine coatings were developed to encapsulate four strains of probiotic bacteria, including Lactobacillus casei (ATCC 39392), Bifidobacterium bifidum (...

BACKGROUND In the dairy industry, probiotic strains of Bifidobacterium are introduced into the composition of traditional starter cultures intended for the production of fermented foods, or sometimes are the sole microflora responsible for the fermentation process. In order to be able to reach the intestines alive and fulfil their beneficial role, probiotic strains must be able to withstand the...

Microencapsulation using extrusion and emulsion techniques was prepared for Bifidobacterium longum protection against sequential exposure to simulated gastric and intestinal juices, refrigeration storage and heat treatment. Eleutherine americana was used as the co-encapsulating agent. Hydrolysis of E. americana by gastric and intestinal juices was also determined. E. americana and its oligosacc...

The aim of this study was to quantify the nitrogen fraction flow rates in gastro-jejunal secretions in fasting humans and to determine the [15N]leucine incorporation into the secreted proteins. A double lumen intestinal perfusion method was used in 5 healthy volunteers. Plasma and gastro-jejunal juices were collected during a 15-h intravenous [15N]leucine infusion. Total, soluble and insoluble ...

Selenium (Se) is an essential trace element important for several biological functions, such as thyroid hormone metabolism, anti-aging, and antioxidant protection. Even though reports on Se species in different food products are increasing, the scientific knowledge on the bioaccessible amount of Se species from these products is not as well known. In this work, Se-enriched chicken meat was dige...

obscure gastrointestinal (gi) bleeding is defined when the source of gi bleeding could not be determined by upper endoscopy, colonoscopy or barium small bowel transit. in this report, a 41 year-old man presented with a history of over ten recurrent episodes of melena since four years prior to admission. the source of bleeding was not detected by multiple upper and lower gi endoscopies. during t...

summary gastro-intestinal manifestations of hyperthyroidism

Human intestinal absorption and drug metabolism vary to a large extent among individuals. For example, CYP3A4 activity has large individual variation that cannot be attributed to only genetic differences. Various flavonoids in vegetables, such as kaempferol and quercetin, possess inhibitory effects, and some vegetable and fruit juices have also been found to inhibit CYP3A4 activity. Therefore, ...