Effect of storage conditions on volatile composition of dried rosemary (Rosmarinus officinalis L.) leaves

The effects of two different packaging materials for dried spices (polystyrene and glass) and storage conditions (room temperature under light and darkness) on volatile composition of dried rosemary leaves were investigated. The results showed that rosemary samples packaged in polystyrene bottles retained a higher quantity of volatile compounds than those packaged in glass bottles, independently of their storage conditions, light or darkness. However, sensorial analysis did not show statistical differences among samples in overall rosemary aroma. These results reveal that polystyrene bottles could replace the glass bottles normally used for packaging spices, a fact that could indicate a considerable saving of money for companies. Copyright (C) 2009 John Wiley & Sons, Ltd.