| The oxidation of fuels can be divided into two general stages: production of reduced nucleotide coenzymes during the oxidation of fuels, and ATP synthesis from the free energy provided by oxidation of the reduced coenzymes (Fig. 8.1).
|
| page 93 |  | | page 94 |
|
Table 8-1.
Energy content of the major classes of food. |
| Body_ID: None |
| The energy value of food |
| Body_ID: T008001.50 |
| Metabolic Fuel | Energy Content |
| Body_ID: T008001.100 |
| | kJ/g | kcal/g |
| Body_ID: T008001.150 |
| Fats | 38 | 9 |
| Body_ID: T008001.200 |
| Carbohydrates | 17 | 4 |
| Body_ID: T008001.250 |
| Proteins | 17 | 4 |
| Body_ID: T008001.300 |
| Alcohol | 29 | 7 |
| Body_ID: T008001.350 |
|
| Body_ID: T008001.400 |
Note that the thermodynamic term, kcal (energy required to increase the temperature of 1 kg (1 L) of water by 1 °C) is equivalent to the common nutritional Calorie (capital C), i.e. 1 Cal = 1 kcal, 1 kcal = 4.2 kJ.
|
| Figure 8.1 Stages of fuel oxidation. NADH, reduced nicotinamide adenine dinucleotide; FADH2, reduced flavin adenine dinucleotide. |
|
