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Bioavailability Enhancement: Drug Stability Enhancement and GI Retention01:05

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Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
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Biotransformation of polyphenols for improved bioavailability and processing stability.

Apoorva Gupta1, Lalit D Kagliwal, Rekha S Singhal

  • 1Food Engineering and Technology Department, Institute of Chemical Technology, Matunga, Mumbai, India.

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Polyphenols offer health benefits but have low bioavailability. Biotransformation using enzymes or microbes can enhance their properties for wider applications.

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Area of Science:

  • Biochemistry
  • Biotechnology
  • Natural Products Chemistry

Background:

  • Polyphenols exhibit significant bioactivities, including antioxidant and anticancer properties.
  • Low solubility, stability, and bioavailability limit the full realization of polyphenol potential.
  • Extensive metabolism in the body further hinders polyphenol efficacy.

Purpose of the Study:

  • To explore biotransformation as a strategy to overcome polyphenol limitations.
  • To identify effective methods for modifying polyphenol structures while preserving bioactivity.
  • To highlight the development of green solvents and novel sources for polyphenol transformation.

Main Methods:

  • Enzymatic modification of polyphenols, particularly acylation using lipases.
  • Biotransformation employing whole-cell microbes like Aspergillus, Bacillus, and Streptomyces species.
  • Utilization of plant cell cultures, such as Eucalyptus perriniana and Capsicum frutescens.

Main Results:

  • Enzymes, especially lipases, are effective in modifying polyphenol structures.
  • Microbial and plant cell cultures offer alternative routes for polyphenol biotransformation.
  • Green solvents and diverse sources are crucial for maximizing transformation efficiency.

Conclusions:

  • Polyphenol biotransformation is a promising approach to enhance their therapeutic and industrial applications.
  • Optimizing biotransformation processes requires careful selection of enzymes, microbes, or plant systems.
  • Further research into green chemistry and novel sources will unlock greater polyphenol potential.