Table 3.
Regression coefficient and p-value for significant response for dark chocolates.
| Response | Factors | coefficient | p-value | Model fitting |
|---|---|---|---|---|
| AA-DPPH (μ mol Trolox/g) | SP(L) | 4.678 | 0.000 | R2 = 90.50% |
| SP(Q) | −5.845 | 0.000 | F = 41.58 | |
| SIO(L) | −0.675 | 0.045 | P = 0.000 | |
| SIO(Q) | 2.919 | 0.008 | ||
| CT(L) | −2.328 | 0.000 | ||
| CT(Q) | 1.794 | 0.000 | ||
| SP*SIO | 2.017 | 0.000 | ||
| SP*CT | −2.219 | 0.000 | ||
| SIO*CT | 1.358 | 0.000 | ||
| Interceptor | 28.66 | |||
| Lack-of-fit | 0.000 | |||
| AA- ABTS (μ mol Trolox/g) | SP(L) | 1.703 | 0.000 | R2 = 81.94% |
| SP(Q) | −3.253 | 0.000 | F = 19.80 | |
| SIO(L) | −0.372 | 0.045 | P = 0.000 | |
| SIO(Q) | 0.958 | 0.008 | ||
| CT(Q) | 2.097 | 0.000 | ||
| SP*CT | −0.961 | 0.000 | ||
| Interceptor | 7.71 | |||
| Lack-of-fit | 0.000 | |||
| TPC (mg GAE/g) | SP(L) | 0.9619 | 0.000 | R2 = 98.36% |
| SP(Q) | 0.163 | 0.000 | F = 262.05 | |
| SIO(L) | −0.2093 | 0.000 | P = 0.000 | |
| SIO(Q) | 0.8898 | 0.006 | ||
| CT(L) | −0.1269 | 0.006 | ||
| CT(Q) | 0.1231 | 0.007 | ||
| SP*SIO | 0.213 | 0.000 | ||
| SP*CT | −0.088 | 0.001 | ||
| SIO*CT | −0.1472 | 0.000 | ||
| Interceptor | 38.65 | |||
| Lack-of-fit | 0.000 | |||
| CPV (Pa. s) | SP(L) | 0.1497 | 0.000 | R2 = 93.42% |
| SP(Q) | −0.1321 | 0.000 | F = 61.95 | |
| SIO(L) | −0.1163 | 0.024 | P = 0.000 | |
| SIO(Q) | 0.0612 | 0.000 | ||
| CT(L) | −0.0533 | 0.024 | ||
| CT(Q) | 0.2662 | 0.000 | ||
| SIO*CT | 0.2187 | 0.000 | ||
| Interceptor | 70.97 | |||
| Lack-of-fit | 0.000 | |||
| CEL (Pa) | SP(L) | −0.880 | 0.000 | R2 = 90.68% |
| SP(Q) | 7.416 | 0.000 | F = 42.47 | |
| SIO(L) | −1.237 | 0.003 | P = 0.000 | |
| SIO(Q) | 5.396 | 0.000 | ||
| CT(L) | 1.694 | 0.000 | ||
| SP*SIO | 2.263 | 0.000 | ||
| Interceptor | 42.50 | |||
| Lack-of-fit | 0.000 | |||
| Hardness (N) | SP(L) | 0.264 | 0.003 | R2 = 83.00% |
| SP(Q) | −0.422 | 0.013 | F = 21.30 | |
| SIO(L) | −0.8647 | 0.000 | P = 0.000 | |
| SIO(Q) | 1.035 | 0.000 | ||
| CT(L) | 0.4680 | 0.000 | ||
| SP*SIO | −0.3088 | 0.002 | ||
| SP*CT | −0.3146 | 0.002 | ||
| SIO*CT | −0.2379 | 0.015 | ||
| Interceptor | 9.35 | |||
| Lack-of-fit | 0.000 | |||
| PSD- D [10] (μm) | SP(L) | 1.822 | 0.000 | R2 = 87.88% |
| SP(Q) | 0.722 | 0.021 | F = 31.64 | |
| SIO(L) | −0.354 | 0.029 | P = 0.000 | |
| SIO(Q) | 0.821 | 0.009 | ||
| CT(L) | −0.841 | 0.000 | ||
| CT(Q) | 1.232 | 0.000 | ||
| Interceptor | 1.23 | |||
| Lack-of-fit | 0.000 | |||
| PSD- D[50] (μm) | SP(L) | 5.589 | 0.000 | R2 = 97.25% |
| SP(Q) | 2.732 | 0.787 | F = 154.20 | |
| SIO(Q) | 2.000 | 0.000 | P = 0.000 | |
| CT(L) | −1.854 | 0.000 | ||
| CT(Q) | 3.966 | 0.000 | ||
| SP*SIO | 0.748 | 0.001 | ||
| SP*CT | 0.844 | 0.000 | ||
| Interceptor | 9.69 | |||
| Lack-of-fit | 0.000 | |||
| PSD- D[90] (μm) | SP(L) | 6.712 | 0.000 | R2 = 99.14% |
| SP(Q) | 4.375 | 0.000 | F = 500.62 | |
| SIO(Q) | −0.664 | 0.003 | P = 0.000 | |
| CT(L) | −1.683 | 0.000 | ||
| CT(Q) | 2.455 | 0.000 | ||
| SP*SIO | 0.754 | 0.000 | ||
| SIO*CT | 0.373 | 0.005 | ||
| Interceptor | 15.74 | |||
| Lack-of-fit | 0.000 |
L: Linear, Q: Quadratic.
CT: conching time; SP: sauco by-products; SIO: sacha inchi oil; AA-DPPH: Antioxidant activity (2,2-diphenyl-1-picrylhydrazyl); AA-ABTS: Antioxidant activity (2,2′-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid); TPC: total phenolic content; CPV: Casson plastic viscosity; CEL: Casson yield strength; PSD: particle size determination. Statistically significant at (p < 0.05).