Novel Noninvasive Ultrasonic Method to Assess Avocado Ripening

A novel method to assess the ripening state of Persea Americana Mill avocados was developed. The method was validated and its results compared with standard ones such as the penetrometer method. Also, comparison were made between the proposed method and the ultrasonic system reported by other authors. The correlation between the proposed method and both the standard and former ultrasonic method is quite good. The measurement system overcomes the problem of alignment between the emitter and receiver found in the resent execution development for the same purposes. Extension of proposed systems could allow the measurement with a single ultrasonic source and possibility the development of an online evaluation system for all the fruits.