Table 1. Effects of time and heat on the solubility of protein extracted from yellow mealworm larvae
Protein solubility | Control | Protein extracted of yellow mealworm larvae |
55°C (min) | 75°C (min) | 95°C (min) | SEM |
20 | 40 | 60 | 20 | 40 | 60 | 20 | 40 | 60 |
pH 2 | 69.81aA | 54.2bB | 54.82bB | 59.98cB | 52.97bB | 56.06bB | 52.63cB | 39.13bB | 42.81bB | 42.57cB | ±4.02 |
pH 3 | 50.88aA | 49.35abB | 40.67abB | 52.21bB | 38.11abB | 43.19abB | 47.67bB | 40.72abAB | 41.37abAB | 41.29bAB | ±3.23 |
pH 4 | 39.36aAB | 29.11aB | 35.96aB | 47.70aB | 33.29aB | 38.61aB | 48.81aB | 32.54aA | 27.07aA | 36.50aA | ±3.46 |
pH 5 | 38.48aA | 27.69abB* | 31.17abB* | 46.00bB* | 28.18abB* | 36.85abB* | 38.62bB* | 28.97abA* | 29.66abA* | 31.98bA* | ±2.36 |
pH 6 | 45.15aA | 29.28bcC** | 29.06bC** | 44.15cC** | 28.43bcC** | 35.07bC** | 37.78cC** | 27.24bcB** | 26.28bB** | 31.04cB** | ±2.30 |
pH 7 | 53.47aA | 29.52bC | 32.01bC | 42.82bC | 29.77bBC | 33.71bBC | 36.96bBC | 27.68bB | 31.11bB | 31.07bB | ±2.50 |
pH 8 | 56.30aA | 39.30bB | 41.40bB | 43.24cB | 38.76bB | 41.30bB | 40.10cB | 33.31bB | 29.84bB | 31.52cB | ±3.28 |
pH 9 | 63.68aA | 40.27bB | 48.70bB | 50.57cB | 48.82bB | 46.80bB | 43.02cB | 36.76bB | 35.58bB | 32.44cB | ±4.33 |
pH 10 | 85.42aA | 49.13bB | 63.57bB | 55.31bB | 60.24bB | 57.92bB | 51.16bB | 45.59bB | 66.60bB | 35.43bB | ±6.46 |
pH 11 | 97.88aA | 68.38bB | 82.92bB | 75.30bB | 75.27bB | 65.77bB | 88.82bB | 71.52bB | 66.45bB | 58.46bB | ±7.55 |
All values are expressed as means±SEM of triplicate experiments.
Indicate within a column significant difference between heating time and temperature interaction
p<0.05,
p<0.01).
denotes differences with respect to time (p<0.05) while A–C indicate significant effects of heat treatment (p<0.05).