Background: The adhesion of probiotics to the intestine is crucial for their probiotic function. In previous studies, Tremella polysaccharides (TPS) (with sodium casein) have shown the potential to encapsulate probiotics and protect them in a simulated gastrointestinal tract. This study explored the effect of TPS (with sodium casein) on the adhesion of probiotics.
Results: Lactobacillus plantarum was coated with TPS and sodium casein in different proportions, and was freeze-dried. The rheological properties of the mixture of probiotics powder and mucin solution were determined by static and dynamic rheological analysis. Aqueous solutions of probiotic powder and mucin mixture exhibited pseudoplastic fluid rheological properties. The higher the proportion of TPS content, the higher the apparent viscosity and yield stress. The mixed bacterial powder and mucin fluid displayed thixotropy and was in accordance with the Herschel-Bulkley model. The TPS increased the bio-adhesive force of the probiotic powder and mucin. When using TPS as the only carbon source, the adhesion of L. plantarum to Caco-2 cells increased by 228% in comparison with glucose in vitro. Twelve adhesive proteins were also detected in the whole-cell proteome of L. plantarum. Among them, ten adhesive proteins occurred abundantly when grown with TPS as a carbon source.
Conclusion: Tremella polysaccharides therefore possess probiotic properties and can promote the intestinal adhesion of L. plantarum. © 2024 Society of Chemical Industry.
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http://dx.doi.org/10.1002/jsfa.13530 | DOI Listing |
J Dairy Sci
December 2024
College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, China. Electronic address:
Changes in the structure and composition of milk fat globules in spray- and freeze-dried milk powders have recently garnered significant attention. This study investigated changes in milk fat globular membrane (MFGM) proteins from bovine, goat, and horse milk powders, both spray- and freeze-dried, using a label-free proteomics approach, and quantified surface free fatty acids and their composition using gas chromatography. The results showed that several proteins of α-casein and β-lactoglobulin increased, while fibrinogen α, β chain, and mucin-1 decreased in the MFGM fractions of the studied spray-dried milk powders.
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November 2024
Department of Molecular and Structural Biochemistry, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, NC, United States.
Introduction: Carotenoids are naturally occurring pigments in plants and are responsible for the orange, yellow, and red color of fruits and vegetables. Carrots are one of the primary dietary sources of carotenoids. The biological activities of carotenoids in higher organisms, including their immunomodulatory activities, are well documented in most tissues but not the large intestine.
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October 2024
Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan, China.
This study explores the effect of dietary along with GG (LGG) powder on intestinal and liver damage in broiler chickens challenged by lipopolysaccharide (LPS). A total of 100 healthy 1-day-old Ross 308 broiler chickens were selected and randomly divided into two treatments: the control group and the LGG treatment group. There were five replicates for each group, with 10 chickens per replicate.
View Article and Find Full Text PDFJ Dairy Sci
February 2025
College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, China. Electronic address:
Nutrients
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Department of Nutrition, University of California, Davis, CA 95616, USA.
: Human milk is the optimal source of nutrition and protection against infection for infants. If breastfeeding is not possible, standard and hydrolyzed infant formulas (IF) are an alternative. Extensively hydrolyzed IFs (eHFs) contain bioactive peptides, but their activities have rarely been evaluated.
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