Table 2 Sweet potato composition before and after drying
From: Evaluation of sweet potato for fuel bioethanol production: hydrolysis and fermentation
Drying temperature (°C) | Drying time (h) | Free sugars (% w/w db) | Starch (% w/w db) | Total sugars in glucose equivalent (% w/w db) | Water content (%) | ||
|---|---|---|---|---|---|---|---|
Glucose | Fructose | Sucrose | |||||
55 | 0 | 4.4 ± 0.1 | 2.9 ± 0.1 | 5.6 ± 0.1 | 60.4 ± 3.9 | 80.2 ± 4.6 | 68.4 ± 0.5 |
28 | 3.6 ± 0.0 | 3.6 ± 0.0 | 4.6 ± 0.1 | 69.0 ± 1.4 | 88.6 ± 1.7 | 8.0 ± 1.1 | |
95 | 0 | 3.9 ± 0.1 | 3.0 ± 0.1 | 5.0 ± 0.1 | 60.7 ± 2.1 | 79.5 ± 2.6 | 65.8 ± 1.5 |
18 | 2.2 ± 0.0 | 3.3 ± 0.0 | 1.8 ± 0.1 | 59.7 ± 1.2 | 73.7 ± 1.4 | 7.8 ± 0.0 | |