Bio treatment of sesame seeds
Sesame seeds preservation faces a rapid post-harvest deterioration. During storage might occur reduction in seedling vigor index, percentage germination, speed of germination and rate of germination.
Degradation occurs especially under humid tropical conditions of high air temperature and relative humidity RH. This is owing to its high oil content and fast cellular breathing. The VacQPack system will conditionate the sesame seeds in an hermetic flexible bulk package, on which, content gets bio treated. The curative process involves low pressure, right storage temperature and controlled atmosphere CA.
Also known as beniseeds, its conservation depends strongly on a previous suitable drying process. Avoiding this way phenomena like discoloration and tainting, which can result on off-flavors.
Common good long storage practices advises that seed should be clean, have a moisture content no more than 6%, be stored at a relative humidity RH of approximately 50% and at a storage temperature less than 18°C. VacQPack gas barrier will assure the stabilization of content moisture and the entire package gets independent of any other mandatory conditions such as RH or temperature.
Pest control is also often required on sesame seeds policies. The hazard is the Indian Meal Moth Plodia interpunctella (Lepidoptera). In this case VacQPack fights it using anoxia (residual percentages of oxygen) at low pressure (<500 mlbar) combined with storage temperature (>24C).
Sesamum indicum L
Resuming, VacQPack packaging turns out to be easier to be implemented, because it can be storage in whatever exterior conditions. Our packaging can even hold rain and direct sun exposition at open air for several months.
Again, about managing moisture content of sesame seeds. They are physically small and flat, resulting in a cargo of high density. It’s therefore fundamental to be harvested as dry as possible and keep at 6% content moisture or less. VacQPack has a valve prepared with a filter, precisely to deal with high density products, avoiding the aspiration of the cargo while applying vacuum.
Finally, VacQPack promises positive results over the natural degeneration of sesame seeds. This includes different criteria like: the water content, germination capacity, ageing and viability.
Sesame seeds oil contains lignans like sesamin. These compounds act like phytoestrogens and antioxidants. The seeds are also a good source of calcium, omega fatty acids and iron.
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