In vitro biocompatibility of dextrin: the addition of a low concentration of dextrin in the medium promotes the cell activity of L929 mouse fibroblasts.
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Bioadhesive properties of beta-limit dextrin.
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PURPOSE: beta-Limit dextrin has been studied for many years as a means to investigate the internal structures of amylose and amylopectin. However its role as an excipient in the pharmaceutical industry has never been reported. This paper is the first one in a series to explore its potential use as an excipient to aid drug delivery. METHODS: The bioadhesive properties of beta-limit dextrin were studied using a texture analyser and compared with two well-known bioadhesive polymers - carbopol and chitosan (as controls). RESULTS: The beta-limit dextrin has significant mucoadhesive properties; similar to carbopol but superior to chitosan. CONCLUSIONS: The nature of beta-limit dextrin (a starch derivative) makes it safe to consume and provides a natural alternative when compared with synthetic polymers. In addition, the polysaccharide can be digested by salivary amylase and thus provide a clean mouth feel. (+info)
A new diet for yeast to improve biofuel production.
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Intake of dried bonito broth flavored with dextrin solution induced conditioned place preference in mice.
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We investigated to determine whether dried bonito broth flavor induces a reinforcing effect using the conditioned place preference (CPP) test. Only dried bonito broth did not induce CPP. Sucrose induced CPP in 20% solution. A 21.86% dextrin solution, with the same calorie content as the 20% sucrose solution, did not induce CPP, but a dextrin solution flavored with dried bonito broth (BD) induced CPP. An AD solution containing the same concentrations of dextrin, NaCl, IMP, GMP, and amino acids as found in BD tended to increase the time spent in the conditioned box but did not significantly. Aromatic compounds, such as citral, vanillin, and menthol flavored AD solutions did not induce CPP, whereas an AD solution supplemented with dried bonito flavoring agent induced CPP. In mice with transected olfactory nerves, CPP was not induced by voluntary intake of BD. These results suggest that the aromatic profile of the dried bonito broth plays an important role in BD-induced CPP. (+info)
Induction of lignocellulose-degrading enzymes in Neurospora crassa by cellodextrins.
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