Table 2.
Sensory scores for attributes of tender coconut water samples during the storage period
| Days of storage | Sensory parameters | TCW | TCWA | TCWH | TCWAH | TCWF | TCWFA | TCWFH | TCWFAH |
|---|---|---|---|---|---|---|---|---|---|
| Day 0 | Aroma | 7.8 ± 1.2a,x | 8.1 ± 0.5a,x | 7.9 ± 0.6a,x | 7.8 ± 0.6a,x | 7.4 ± 1.3a,x | 7.8 ± 0.4a,x | 7.6 ± 0.5a,x | 7.7 ± 0.7a,x |
| Taste | 7.7 ± 1.2a,x | 8.3 ± 0.7a,x | 7.4 ± 1.3a,x | 7.7 ± 1.1a,x | 7.4 ± 1.3a,x | 8.4 ± 0.7a,x | 7.3 ± 1.2a,x | 8.0 ± 0.9a,x | |
| Appearance | 8.5 ± 0.5ab,x | 8.5 ± 0.5ab,x | 8.1 ± 0.8b,x | 8.1 ± 0.87b,x | 8.8 ± 0.4a,x | 8.8 ± 0.4a,x | 8.4 ± 0.7ab,x | 8.3 ± 0.7ab,x | |
| Overall acceptability | 8.1 ± 0.7ab,x | 8.7 ± 0.5b,x | 7.8 ± 1.03a,x | 7.9 ± 0.9a,x | 7.8 ± 0.6a,x | 8.2 ± 0.6ab,x | 7.9 ± 0.9a,x | 8.2 ± 0.6ab,x | |
| Day 30 | Aroma | 4.9 ± 1.1a,x | 4.1 ± 1.3b,x | 3.2 ± 1.3cb,x | 2.3 ± 1.2c,x | 7.1 ± 1.3d,x | 7.6 ± 0.5d,x | 7.5 ± 0.5d,x | 7.6 ± 0.7d,x |
| Taste | 3.3 ± 1.4a,x | 2.8 ± 1.4a,x | 2.5 ± 0.8a,x | 1.5 ± 0.7b,x | 7.0 ± 1.2c,x | 8.2 ± 0.8d,x | 7.2 ± 1.2 cd,x | 7.8 ± 0.9 cd,x | |
| Appearance | 5.4 ± 0.7a,x | 4.0 ± 1.6b,x | 3.4 ± 1.3b,x | 1.3 ± 0.5c,x | 8.7 ± 0.5d,x | 8.7 ± 0.7d,x | 8.3 ± 0.7d,x | 8.4 ± 0.7d,x | |
| Overall acceptability | 3.7 ± 1.5a,x | 2.1 ± 1.2b,x | 4.0 ± 2.1a,x | 1.6 ± 0.7b,x | 8.0 ± 0.7c,x | 8.0 ± 0.8c,x | 8.0 ± 0.8c,x | 8.0 ± 0.6c,x | |
| Day 60 | Aroma | – | – | – | – | 6.4 ± 1.4a,x | 6.3 ± 0.7a,y | 6.3 ± 1.1a.y | 5.9 ± 1.4a,y |
| Taste | – | – | – | – | 6.6 ± 1.1a,x | 6.2 ± 1.2a,y | 6.5 ± 0.8a,y | 7.8 ± 0.9a,y | |
| Appearance | – | – | – | – | 8.7 ± 0.5a,x | 8.6 ± 0.8a,y | 8.2 ± 0.6a,x | 6.0 ± 1.3a,x | |
| Overall acceptability | – | – | – | – | 6.6 ± 1.3a,y | 6.7 ± 0.9a,y | 6.9 ± 1.7a,y | 7.7 ± 0.7a,x | |
| Day 90 | Aroma | – | – | – | – | 4.8 ± 1.7a,y | 4.7 ± 2.3a,z | 4.0 ± 0.7a.z | 4.2 ± 1.9a,z |
| Taste | – | – | – | – | 4.9 ± 1.6a,y | 4.9 ± 1.4a,z | 5.5 ± 0.8a,z | 5.2 ± 1.2a,z | |
| Appearance | – | – | – | – | 8.5 ± 0.5a,y | 8.5 ± 0.8a,z | 8.3 ± 0.7a,y | 7.6 ± 1.1a,y | |
| Overall acceptability | – | – | – | – | 4.9 ± 0.7a,y | 5.0 ± 1.3a,z | 5.3 ± 1.0a,z | 4.9 ± 1.4a,y | |
| Day 115 | Aroma | – | – | – | – | 2.6 ± 1.5a,z | 2.6 ± 1.4a,z | 2.1 ± 0.9a,w | 2.9 ± 1.3a,w |
| Taste | – | – | – | – | 3.7 ± 1.5a,y | 2.5 ± 1.1b,z | 3.9 ± 1.3a,z | 2.6 ± 1.2a,z | |
| Appearance | – | – | – | – | 8.0 ± 0.8a,y | 7.4 ± 1.1a,w | 7.9 ± 0.7b,y | 6.9 ± 1.2b,y | |
| Overall acceptability | – | – | – | – | 3.1 ± 1.3a,w | 3.8 ± 1.1a,w | 2.7 ± 1.4a,w | 3.2 ± 1.4a,z |
Number of panellists = 10
Different letters (a, b, c, d) in the rows suggests significant difference in attributes between samples at a particular storage day and different letter (w, x, y, z) in the columns suggests significant in attributes difference between samples at different days of storage at significance p < 0.05 level using Duncan’s multiple range tests. For non-microfiltered samples between 0 and 30th day paired comparison t-test was performed to ascertain significance at p < 0.05