Table 2.
Elastic bending modulus (EB), melting temperature, and whiteness index (WI) of commercial chocolate samples with added phospholipids.
Sample | Commercial | DMPC | DPPE | Recrystallized commercial |
---|---|---|---|---|
EB | 74.7 ± 13.2a | 75.6 ± 8.3a | 65.7 ± 8.4a,c | 36.6 ± 4.2b,c |
Melting temperature (°C) | 33.3 ± 0.5a | 34.4 ± 0.2a | 34.0 ± 0.1a | 33.6 ± 0.3a |
WI | 38.9 ± 1.6a,b | 32.2 ± 3.3a,* | 40.0 ± 2.8a,b,* | 43.6 ± 2.6b |
Samples included fresh commercial chocolate, molten and recrystallized commercial chocolate with added 0.1% (w/w) dimyristoylphosphatidylcholine (DMPC), molten and recrystallized commercial chocolate with added 0.1% (w/w) dipalmitoylphosphatidylethanolamine (DPPE), molten and recrystallized commercial chocolate. The molten and recrystallized samples were crystallized at 5 °C for 1 h and stored at 20 °C for 4 days. Values represent the means and standard errors for 4–16 replicates for EB and WI and for 3 replicates for melting temperature. Values with the same superscript letter within a row are not significantly different (P > 0.05).
*There is a significant difference between these values at P < 0.1.