Quality evaluation of melon cubes preserved in sweeteners solutions
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Quality evaluation of melon cubes preserved in sweeteners solutions
- 13. RESULTS AND DISCUSSION Table 1. Effect of storage on ascorbic acid content (mg/100g) of melon cubes. Values followed by different letters are significantly (P < 0.05) different from each other. LSD value at 5% level for intervals = 5.239 LSD value at 5% level for treatments = 5.239 Treatments Storage intervals (15 days) Means Fresh 2 nd 3 rd 4 th 5 th 6 th 7 th % Inc. T 0 37.05 32.50 28.01 25.05 22.09 18.03 15.00 59.51 25.390 b T 1 37.05 38.30 39.91 42.60 44.50 44.96 49.30 28.72 42.374 a T 2 34.20 35.91 38.60 41.44 41.49 45.60 47.61 32.58 40.693 a T 3 37.05 37.05 41.30 41.36 42.41 46.70 51.66 39.43 42.504 a T 4 35.91 37.05 42.60 43.44 43.63 45.26 51.70 39.54 42.799 a T 5 35.91 37.46 40.81 41.40 44.70 45.44 47.39 26.51 41.873 a T 6 34.20 36.60 39.44 41.05 44.44 45.70 48.30 31.97 41.390 a Means 35.91 b 36.41 b 38.667 ab 39.48 ab 40.47 ab 41.67 ab 44.423 a
- 14. Table 2. Effect of storage on titratable acidity (%) of melon cubes. Mean values followed by different letters are non-significantly (P>0.05) different from each others. Treatments Storage intervals (days) Means Fresh 2 nd 3 rd 4 th 5 th 6 th 7 th % Inc. T 0 0.128 0.132 0.135 0.137 0.138 0.142 0.146 14.7 0.137 T 1 0.129 0.130 0.132 0.136 0.137 0.139 0.143 10.0 0.135 T 2 0.127 0.128 0.131 0.132 0.136 0.134 0.142 12.6 0.133 T 3 0.128 0.132 0.135 0.137 0.138 0.143 0.144 12.5 0.137 T 4 0.128 0.132 0.133 0.136 0.136 0.138 0.139 8.60 0.135 T 5 0.129 0.132 0.134 0.135 0.138 0.140 0.143 10.9 0.136 T 6 0.125 0.128 0.131 0.134 0.135 0.137 0.139 11.2 0.133 Means 0.128 0.131 0.133 0.135 0.137 0.139 0.142
- 15. Table 3. Effect of storage on pH of melon cubes. Values followed by different letters are significantly (P < 0.05) different from each other. LSD value at 5% level for storage intervals = 0.119 LSD value at 5% level for treatments = 0.119 Treatments Storage intervals (days) Means Fresh 2 nd 3 rd 4 th 5 th 6 th 7 th % Dec. T 0 5.83 5.86 5.62 5.43 5.25 5.11 4.82 17.84 5.417 b T 1 5.83 5.85 5.68 5.57 5.54 5.50 5.46 6.670 5.633 a T 2 5.83 5.88 5.74 5.71 5.70 5.65 5.57 5.320 5.726 a T 3 5.83 5.93 5.86 5.72 5.64 5.62 5.59 5.830 5.741 a T 4 5.83 5.82 5.76 5.68 5.61 5.60 5.54 5.010 5.691 a T 5 5.83 5.84 5.77 5.74 5.69 5.66 5.60 4.050 5.733 a T 6 5.83 5.89 5.81 5.77 5.74 5.68 5.66 3.950 5.769 a Means 5.830 a 5.867 a 5.749 ab 5.660 bc 5.596 cd 5.546 cd 5.463 d
- 16. Table 4. Effect of storage on TSS of melon cubes . Values followed by different letters are significantly (P < 0.05) different from each other. LSD value at 5% level for storage intervals = 3.013 LSD value at 5% level for treatments = 3.013 Treatments Storage intervals (days) Means Fresh 2 nd 3 rd 4 th 5 th 6 th 7 th % Inc. T 0 11 3.00 2.50 2.00 2.00 1.00 1.00 63.66 3.214 d T 1 11 17.0 16.5 17.5 17.5 18.0 18.5 8.110 16.571 bc T 2 11 20.5 21.0 23.0 22.5 24.5 24.5 16.33 21.000 a T 3 11 15.5 16.0 16.0 17.0 17.5 19.0 18.42 16.000 c T 4 11 19.5 21.0 21.0 22.0 22.5 23.5 17.02 20.071 ab T 5 11 16.0 17.5 19.0 17.5 18.5 18.0 11.11 16.786 bc T 6 11 20.0 20.5 21.5 22.0 24.5 24.5 18.37 20.571 a Means 11.0 b 15.643 a 16.214 a 17.143 a 17.214 a 18.286 a 18.714 a
- 17. Table 5. Effect of storage on reducing sugar of melon cubes. Values followed by different letters are significantly (P < 0.05) different from each other. LSD value at 5% level for storage intervals= 1.509 LSD value at 5% level for treatments = 1.509 Treatments Storage intervals (days) Means Fresh 2 nd 3 rd 4 th 5 th 6 th 7 th % Inc. T 0 5 2.00 1.000 2.000 1.000 1.000 1.000 50.0 1.857 b T 1 5 11.1 11.14 11.21 11.30 11.38 11.42 6.40 10.364 a T 2 5 10.0 10.22 10.36 10.32 10.39 10.41 8.20 9.529 a T 3 5 10.0 10.18 10.28 10.37 10.42 10.45 9.00 9.529 a T 4 5 11.1 11.26 11.32 11.38 11.46 11.52 8.40 10.434 a T 5 5 8.40 9.950 10.15 10.24 10.25 10.37 47.4 9.194 a T 6 5 10.7 10.96 11.08 11.21 11.30 11.36 13.2 10.230 a Means 5.000 b 9.043 a 9.244 a 9.486 a 9.403 a 9.457 a 9.504 a
- 18. Table 6. Effect of storage on non-reducing sugar of melon cubes. Values followed by different letters are significantly (P < 0.05) different from each other. LSD value at 5% level for storage intervals= 2.881 LSD value at 5% level for treatments= 2.881 Treatments Storage intervals (days) Means Fresh 2 nd 3 rd 4 th 5 th 6 th 7 th % Dec. T 0 1.88 1.860 1.000 1.000 0.800 1.000 1.000 56.38 1.220 b T 1 1.88 17.94 17.92 17.83 17.58 17.55 17.42 2.910 15.446 a T 2 1.88 17.50 17.37 17.25 17.12 17.02 16.84 3.770 14.997 a T 3 1.88 15.92 15.87 15.77 15.74 15.69 15.59 2.070 13.780 a T 4 1.88 17.23 16.67 16.93 16.88 16.73 16.68 3.190 14.714 a T 5 1.88 16.70 16.68 16.61 16.53 16.62 16.51 1.140 14.504 a T 6 1.88 18.04 17.93 17.85 17.86 17.76 17.68 3.990 15.571 a Means 1.880 b 15.027 a 14.777 a 14.749 a 14.644 a 14.624 a 14.531 a
- 19. Table 7. Effect of storage on water activity of melon cubes. Interval values followed by different letters are significantly (P < 0.05) different from each other. LSD value at 5% level for storage intervals= 0.051 Treatments Storage interval (days) Fresh 2 nd 3 rd 4 th 5 th 6 th 7 th % Dec . Means T 0 0.937 0.934 0.93 0.928 0.927 0.925 0.921 26.36 0.929 T 1 0.937 0.933 0.931 0.927 0.925 0.922 0.919 17.02 0.928 T 2 0.937 0.932 0.928 0.924 0.921 0.917 0.915 9.942 0.925 T 3 0.937 0.934 0.93 0.928 0.926 0.924 0.921 25.49 0.929 T 4 0.937 0.933 0.928 0.925 0.923 0.92 0.918 12.60 0.926 T 5 0.937 0.934 0.931 0.938 0.926 0.923 0.92 6.72 0.930 T 6 0.937 0.932 0.929 0.926 0.922 0.918 0.916 11.71 0.926 Means 0.937 a 0.933 a 0.93 ab 0.928 ab 0.924 b 0.921 b 0.919 b
- 20. Table 8. Mean scores of judges for texture of melon cubes. Values followed by different letters are significantly (P < 0.05) different from each other. LSD value at 5% level for storage intervals = 1.380 LSD value at 5% level for treatment = 1.380 Treatments Storage intervals (days) Means Fresh 2 nd 3 rd 4 th 5 th 6 th 7 th % Dec. T 0 9.00 3.00 4.00 4.00 7.00 3.00 5.00 66.7 5.00 b T 1 8.00 8.00 8.00 7.00 6.00 7.00 5.00 37.5 7.00 a T 2 9.00 8.00 8.00 5.00 5.00 3.00 4.00 66.7 6.00 ab T 3 9.00 7.00 8.00 7.00 7.00 6.00 6.00 33.3 7.14 a T 4 8.00 8.00 7.00 8.00 6.00 6.00 7.00 25.0 7.14 a T 5 9.00 8.00 8.00 6.00 7.00 5.00 5.00 44.4 6.86 a T 6 8.00 8.00 5.00 7.00 7.00 8.00 8.00 37.5 7.29 a Means 8.57 a 7.14 ab 6.86 bc 6.29 bc 6.43 bc 5.43 c 5.71 bc
- 21. Table 9. Mean score of judges for color of melon cubes . Values followed by different letters are significantly (P < 0.05) different from each other. LSD value at 5% level for storage interval = 0.861 LSD value at 5% level for treatments = 0.861 Treatments Storage intervals (days) Means Fresh 2 nd 3 rd 4 th 5 th 6 th 7 th % Dec. T 0 9.00 7.00 4.00 5.00 7.00 5.00 7.00 55.6 6.28 c T 1 8.00 7.00 7.00 7.00 7.00 7.00 7.00 12.5 7.14 bc T 2 9.00 8.00 6.00 6.00 6.00 6.00 6.00 33.3 6.71 c T 3 9.00 6.00 7.00 7.00 7.00 7.00 7.00 33.3 7.14 bc T 4 9.00 7.00 9.00 9.00 9.00 9.00 9.00 22.2 8.71 a T 5 9.00 8.00 8.00 8.00 8.00 8.00 8.00 11.1 8.14 ab T 6 9.00 9.00 9.00 9.00 9.00 9.00 9.00 0.00 9.00 a Means 8.86 a 7.43 b 7.14 b 7.29 b 7.57 b 7.29 b 7.57 b
- 22. Table 10. Mean score of judges for flavor of melon cubes. Values followed by different letters are significantly (P < 0.05) different from each other. LSD value at 5% level for storage intervals = 0.899 LSD value at 5% level treatments = 0.899 Treatments Storage intervals (days) Means Fresh 2 nd 3 rd 4 th 5 th 6 th 7 th % Dec. T 0 9.00 5.00 4.00 3.00 5.00 3.00 4.00 66.7 4.71 d T 1 8.00 5.00 6.00 6.00 6.00 5.00 5.00 37.5 5.86 c T 2 9.00 7.00 6.00 5.00 6.00 7.00 6.00 44.4 6.57 bc T 3 9.00 6.00 6.00 6.00 6.00 6.00 6.00 33.3 6.43 bc T 4 9.00 7.00 7.00 8.00 7.00 7.00 7.00 22.2 7.43 ab T 5 8.00 7.00 6.00 7.00 4.00 5.00 5.00 50.0 6.00 c T 6 9.00 7.00 8.00 9.00 7.00 8.00 7.00 22.2 7.86 a Means 8.71 a 6.29 b 6.14 b 6.29 b 5.86 b 5.86 b 5.71 b
- 23. Table 11. Mean score of judges for overall acceptability of melon cubes. Values followed by different letters are significantly (P < 0.05) different from each other. LSD value at 5% level for storage interval = 0.733 LSD value at 5% level for treatments = 0.733 Treatments Storage intervals (days) Means Fresh 2 nd 3 rd 4 th 5 th 6 th 7 th % Dec. T 0 9.00 5.00 4.00 3.00 5.00 3.00 4.00 66.7 4.71 d T 1 8.00 5.00 6.00 6.00 6.00 5.00 5.00 37.5 5.86 c T 2 9.00 7.00 6.00 5.00 6.00 7.00 6.00 44.4 6.57 bc T 3 9.00 6.00 6.00 6.00 6.00 6.00 6.00 33.3 6.43 bc T 4 9.00 7.00 7.00 8.00 7.00 7.00 7.00 22.2 7.43 ab T 5 8.00 7.00 6.00 7.00 4.00 5.00 5.00 50.0 6.00 c T 6 9.00 7.00 8.00 9.00 7.00 8.00 7.00 22.2 7.86 a Means 8.71 a 6.29 b 6.14 b 6.29 b 5.86 b 5.86 b 5.71 b