Effects of Different Enzymes and Concentrations in the Production of Clarified Lemon Juice
Table 2
Pectinmethylesterase activity values of lemon juices (%).
Stages of production
Rapidase Intense
Novoferm 61
Novozym 33095
Factory production
10 (μL/100 mL)
20 (μL/100 mL)
40 (μL/100 mL)
10 (μL/100 mL)
20 (μL/100 mL)
40 (μL/100 mL)
10 (μL/100 mL)
20 (μL/100 mL)
40 (μL/100 mL)
20 (μL/100 mL)
Extraction
100a
100a
100a
100a
100a
100a
100a
100a
100a
100a
Pulp removal
85.87 ± 1.92b
85.87 ± 1.92b
85.87 ± 1.92b
81.77 ± 6.79b
81.77 ± 6.79b
81.77 ± 6.79b
88.15 ± 7.66b
88.15 ± 7.66b
88.15 ± 7.66b
9.95 ± 4.24b
Pasteurization
15.64 ± 1.58c
15.64 ± 1.58c
15.64 ± 1.58c
14.25 ± 1.25cd
14.25 ± 1.25c
14.25 ± 1.25c
13.09 ± 2.64c
13.09 ± 2.64c
13.09 ± 2.64c
1.61 ± 0.08c
Enzymation
9.44 ± 4.39dA
9.23 ± 0.84dA
10.07 ± 1.58dA
17.91 ± 4.83cA
15.53 ± 1.18cA
15.16 ± 1.75cA
10.01 ± 1.23cA
9.53 ± 0.61cA
8.16 ± 1.42cdA
1.79 ± 0.25c
Clarification
8.13 ± 1.39dA
9.55 ± 3.31dA
6.82 ± 0.38eA
13.07 ± 0.34cdA
10.09 ± 3.91cA
7.35 ± 2.14dA
9.21 ± 1.41cA
8.19 ± 0.61cA
7.18 ± 0.81cdA
1.52 ± 0.27c
Rotary vacuum filter
—
—
—
—
—
—
—
—
—
2.19 ± 0.13c
Kieselguhr filter
—
—
—
—
—
—
—
—
—
2.02 ± 0.19c
Paper filter
8.06 ± 1.04dA
7.46 ± 1.85dA
5.29 ± 0.81eA
9.22 ± 1.58dA
9.80 ± 5.21cA
6.82 ± 0.08dA
7.65 ± 0.71cA
8.05 ± 0.74cA
6.09 ± 0.26eA
1.85 ± 0.24c
Small letters on the same column show the difference between the stages of production; uppercased letters in the same row show the difference between enzyme concentrations for each enzyme. The difference between stage of production and enzyme concentrations is at level of 0.01 () importance.