Abstract
A 3D scanning method was developed to differentiate Octopus minor blocks which had surplus water to increase weight of O. minor. Effects of soaking time (0.5, 1 and 3 h) and apparent density of O. minor were determined using the number of O. minor in a block (4, 5, 6, and 7). A 0.5, 1, and 3 h soaking time increased O. minor weight by 11.85, 16.02, and 24.53%, respectively. Apparent density of non-weight gained O. minor blocks was significantly higher than those of 3 h soaked samples (p < 0.05). A 3D scanning method had limited ability to differentiate 1 h soaked and non-soaked samples, whereas it had high potential to discriminate 3 h soaked samples. Blind test using 25 blocks of O. minor showed that 3D scanning method evaluated 88% of prediction percentage. The total time of 3D scanning took <30 min for one block with a relatively high precision.
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