We thank Elizabeth Holton of the University of Minnesota and Mary Wagner of Medallion Laboratories for technical assistance.
Shelf Life of Sunflower Kernels
Article first published online: 20 JUL 2006
Journal of Food Science
Volume 62, Issue 2, pages 425–428, March 1997
How to Cite
FRITSCH, C. W., HOFLAND, C. N. and VICKERS, Z. M. (1997), Shelf Life of Sunflower Kernels. Journal of Food Science, 62: 425–428. doi: 10.1111/j.1365-2621.1997.tb04018.x
- Issue published online: 20 JUL 2006
- Article first published online: 20 JUL 2006
- Ms received 2/3/96; revised 8/12/96; accepted 9/4/96.
- sunflower kernels;
- shelf life;
- modified atmosphere;
One raw and two oil roasted samples of sunflower kernels packaged in paper bags and in two types of low oxygen atmosphere pouches were stored at 5, 21 and 38°C. Quality of the stored samples was monitored by an expert sensory panel, peroxide, hexanal, free fatty acids and moisture determinations. Liking ratings, obtained with 99 consumers after 24 wk storage, were used to select end points for expert sensory ratings. The shelf life for roasted sunflower kernels was greater than 12 month when stored in nitrogen flushed pouches and as low as 8 wks when exposed to air at 38°C. Hexanal was a better index for shelf life of roasted sunflower kernels than was peroxide. The shelf life of raw sunflower kernels was > 12 month in packages providing some moisture but no oxygen protection.