Study of jackfruit and the technology for hot air-explosion puffing drying
Based on the hot air drying characteristics,the effects were studied for pre-drying time,puffing temperature,vacuum temperature,vacuum time and puffing times on color,crispness,hardness,rehydration of jackfruit products.The results indicated that the technological conditions of hot air-explosion puffing drying were:hot air drying temperature 60 ℃,pre-drying time 3 h,puffing temperature 90 ℃,vacuum drying temperature 60 ℃,vacuum time 2.5 h,puffing times 5 times,residence time 5 min,and vacuum degree -0.098 MPa.Under these conditions,the values of AE,L,b,hardness,hardness,crispness,rehydration rate were 3.30 ± 0.58,54.19±0.13,28.95±0.16,4 830.82±734.43,17.45±4.34,2.42±0.13,respectively.
jackfruithot air dryingexplosion puffingcombination drying