The solubleness research of Chinese yam under heat pump drying and far-infrared drying
The solubleness of dried Chinese yam determined the nutrient utilization rate once it is drinking after brewing. In this paper, the solubleness of dried Chinese yam was used as index, better combination of parameters of heat pump drying and far-infrared drying has been determined through three-factorthree-level orthogonal test. The research results showed that better combination of parameters of heat pump drying is drying temperature 70 ℃, air velocity 4 m/s, the thickness of Chinese yam 2 mm and that better combination of parameters of far-infrared drying is radiation temperature 190 ℃, radiation distance 8 cm, the thickness of Chinese yam 2 mm. Compared with heat pump drying, far-infrared drying make dried Chinese yam has bigger solubleness. The research results indicated that the thickness of Chinese yam have the most significant influence on the index both under heat pump drying and far-infrared drying. The experimental results of this paper could provide theoretical foundation for drying process of Chinese yam slices.
Chinese yam sliceheat pump dryingfar-infrared dryingsolubleness
NETL
NSTL
万方数据
