Preparation of microparticulate beta-glucan from Saccharomyces cerevisiae for use in immune potentiation.
Lett Appl Microbiol 2002;
35:267-71. [PMID:
12358685 DOI:
10.1046/j.1472-765x.2002.01201.x]
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Abstract
AIMS
To develop a method for the preparation of an immunologically active, homogeneous, nonaggregated, microparticulate beta-glucan-containing material from the budding yeast Saccharomyces cerevisiae.
METHODS AND RESULTS
Using a combination of sonication and spray-drying, a homogeneous preparation of 1-2-mu diameter beta-glucan-containing particles was made from alkali- and acid-insoluble yeast cell wall material. This microparticulate beta-glucan remained in suspension longer and, following oral administration at 0.1 mg kg(-1) for 14 d, enhanced phagocytosis of mouse peritoneal macrophages significantly better than did aggregated beta-glucan particles.
CONCLUSIONS
A new sonication and spray-drying method can be employed to overcome the problem of aggregation of beta-glucan microparticles in aqueous media.
SIGNIFICANCE AND IMPACT OF THE STUDY
A microparticulate form of beta-glucan that remains in suspension longer for pharmaceutical applications and has superior immune potentiation characteristics has been developed.
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