The stability of the prickly pear power packed in laminated roll for 100 days storage under controlled temperature and relative humidity was evaluated. The material was evaluated every 20 days, through the moisture content, water activity, total acidity, sugars and color (brightness, red and yellow colour intensity). It was found during storage of powder samples, that the laminated packaging did not prevent the water absorption, while water activity increased and reduced sugars decreased with time, the total acidity decreased in the first twenty days, keeping stable thereafter in all samples and there was a darkening of the powder samples stored at 40 ºC.
Opuntia ficus-indica; packing; shel life
