Published Resources Details
Conference Paper
- Title
- A hot air popping process for Amaranth seeds
- In
- Chemeca 90: The Eighteenth Australasian Chemical Engineering Conference; Processing Pacific Resources
- Imprint
- 1990, pp. 651-658
- Url
- https://search.informit.org/doi/10.3316/informit.835799965505323
- Description
Dr Clive Davies and William Evason, are both of DSIR Industrial Processing Division, Lower Hutt, New Zealand
[This paper was awarded the John A Brodie Medal 1990]
- Abstract
Dry heat expansion, or popping, is widely used as a conditioning process for food-stuff grains, and confers on the popped product several benefits including nutritional advantages, increased volume, and visual and novelty appeal. Samples of popped Amaranth seeds were needed for use in small production runs of a snackfood product, and this paper describes the development of the popping process. Bench scale trials were carried out with a fluidized bed and also with a pneumatic conveying flash heater. Flash heating in a vertical pneumatic conveying tube was identified as the most promising process option. Design data were obtained with bench scale apparatus (2.2 kg h{-1}) and used in the design of plant with a feed rate of ~25 kg h{-1}. Commissioning and operating experience with the plant are discussed.