Influence of the packaging material and storage temperature on the shelf life of garlic powder

The effect of the packaging materials and storage temperatures on the quality characteristics of the (convective dried at 55 °C and mechanical grounded) garlic powder, was studied for a period of 120 days. The quality parameters such as moisture content, flavour strength, pH, total soluble solids, titrable acidity, change in colour etc. as affected by the packaging materials (LDPE and HDPE) and storage temperatures (Room temperature, refrigerated storage at 4 °C, storage at − 10 °C). The results showed that there was a significant effect of the storage temperature and packaging materials on the quality parameters of the garlic powder. The quality characteristics of garlic powder namely, moisture content (from 6.54 to 7.31 per cent), pH (from 5.57 to 5.69), total soluble solids (from 36.6 to 38.9°BX) and change in colour (from 7.07 to 17.12 per cent) were increased whereas flavour strength (from 0.219 to 0.192 per cent) and titrable acidity (from 0.67 to 0.62) of garlic powder were decreased with the increase of the storage period. Garlic powder packed in low density polyethylene and stored at − 10 °C retained the quality after storage.