Abstract:
:The most bioactive soy isoflavones (SI), daidzein (DAI) and genistein (GEN) have poor water solubility, which reduces their bioavailability and health benefits and limits their use in industry. The goal of this study was to develop and characterize a new gelatin matrix to microencapsulate DAI and GEN from soy extract (SE) by spray drying, in order to obtain solid dispersions to overcome solubility problems and to allow controlled release. The influences of 1:2 (MP2) and 1:3 (MP3) SE/polymer ratios on the solid state, yield, morphology, encapsulation efficiency, particle size distribution, release kinetics and cumulative release were evaluated. Analyses showed integral microparticles and high drug content. MP3 and MP2 yield were 43.6% and 55.9%, respectively, with similar mean size (p > 0.05), respectively. X-ray diffraction revealed the amorphous solid state of SE. In vitro release tests showed that dissolution was drastically increased. The results indicated that SE microencapsulation might offer a good system to control SI release, as an alternative to improve bioavailability and industrial applications.
journal_name
Pharmaceuticsjournal_title
Pharmaceuticsauthors
Panizzon GP,Bueno FG,Ueda-Nakamura T,Nakamura CV,Dias Filho BPdoi
10.3390/pharmaceutics6040599subject
Has Abstractpub_date
2014-12-08 00:00:00pages
599-615issue
4issn
1999-4923pii
pharmaceutics6040599journal_volume
6pub_type
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