Effect of packaging materials and storage durations on nutritional composition and antimicrobial potential of ginger (Zingiber officinale) genotypes from Ethiopia

Ginger ( Zingiber officinale ) contains essential nutrients and bioactive compounds that enhance food value and inhibit foodborne pathogens. The postharvest handling, packaging materials, and storage durations significantly influence the nutritional composition and antimicrobial potential of ginger. This study evaluated the effects of two packaging materials (glass jars and high-density polyethylene [HDPE] bags) and three storage durations (3, 6, and 9 months) on the nutritional and antimicrobial properties of four ginger genotypes from Ethiopia. Significant (p ​< ​0.05) differences in nutritional content and antimicrobial activity were observed due to packaging material and storage duration. Moisture content increased over time in all samples, while crude fiber, fat, protein, ash, carbohydrates, and energy content generally decreased. Antimicrobial activity against S. typhi , E. coli , S. aureus , and A. niger declined over time, with glass jar storage at 3 months preserving the highest activity. These findings suggest that storing ginger powder at room temperature for up to six months in glass jars is optimal. Further research should explore extended storage solutions and improved packaging technologies to preserve the quality and bioactivity of ginger.