Konvektivno sušenje parčića ploda batata (Ipomoea batatas (L.) Lam), zavisnost od predtretmana / The convective drying of pieces of sweet potato (Ipomoea batatas (L.) Lam), depending on the pretreatment
2016
Mitić, Nebojša Č. (Faculty of Technology, Leskovac (Serbia)) | Stojiljković, Staniša T. (Faculty of Technology, Leskovac (Serbia)) | Stojiljković, Dragan T. (Faculty of Technology, Leskovac (Serbia)) | Petrović, Sanja M. (Faculty of Technology, Leskovac (Serbia)) | Stojiljković, Milena S. (Faculty of Technology, Leskovac (Serbia)) | Todorović, Bratislav Ž. (Faculty of Technology, Leskovac (Serbia)) | Mitić, Nataša Č. (Faculty of Sport and Physical Education, Niš (Serbia))
The dried of pieces of sweet potatoes (Ipomoea batatas (L.) Lam) was carried in experimental convective cabinet drier with loess. This vegetable was rich in beta carotene and was not sufficiently in our countries. The dried process was carried at 55oC, and weight changes were measured every 15 minutes. Were performed three pretreatments: dried with pretreatment, blanched with the 1% vitamin C and 5% NaCl and without pretreatment. Blanched was carried in water at 60oC, for 3 minutes. The moisture content of raw sweet potato was 76.40%, but in dried material value from 16.90 to 19.59%, respectively. Rehydration values were measure of the quality of the dried process. The best results were obtained to dried small pieces of sweet potato without pretreatment, than rehydration was 83.37%.
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