Measurement of ripening speed and determination of the optimum ripeness of melons by a nondestructive acoustic vibration method

作者：Taniwaki Mitsuru^*; Tohro Minami; Sakurai Naoki

来源：Postharvest Biology and Technology, 2010, 56(1): 101-103.

DOI：10.1016/j.postharvbio.2009.11.007

• Laser Doppler vibrometer
• Postharvest quality
• Shelf-life

The ripening speed of the melon cultivar 'Miyabi-Haruaki' was determined by monitoring its elasticity index (EI) with a nondestructive acoustic vibration method. EI was determined by the formula EI = f(2)(2).m(2/3), where f(2) is the second resonance frequency of a melon sample, and m is the mass of the sample. The speed of ripening, i.e.. AEI/day. was determined to be 0.36 x 10(4) kg(2/3) H z(2) d(-1). which was lower than the ripening speeds of previously studied melon cultivars 'Andes' and 'Quincy' (0.39 x 10(4) kg(2/3) Hz(2) d(-1) and 0.50 x 10(4) kg(2/3) Hz(2) d(-1), respectively). Using a sensory panel test, the period of optimum ripeness of the melons was determined to be 5.3-7.1 x 10(4) kg(2/3) Hz(2). Nondestructive determination of the period of optimum ripeness in terms of the El can be useful for estimating the shelf-life of melons. In addition, by determining the ripening speed, the time required for a melon to reach optimum ripeness can be predicted.

• 出版日期2010-4