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Firmness evaluation of Watermelon using acoustic method

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Bibliographic Details
Main Author: Muhammad Aqil, Zulkifli
Other Authors: Mohd Khairul Rabani, Hashim
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2021
Subjects:
Firmness
Watermelon
Watermelon grading
Acoustic method
Fruit firmness
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/73660
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spelling my.unimap-736602022-01-24T07:48:22Z Firmness evaluation of Watermelon using acoustic method Muhammad Aqil, Zulkifli Mohd Khairul Rabani, Hashim School of Bioprocess Engineering Firmness Watermelon Watermelon grading Acoustic method Fruit firmness Access is limited to UniMAP community. Firmness is one of the most important criteria in terms of quality in watermelon grading. Firmness can be used to indicate the ripeness of the watermelon fruit. The firmness evolution of fruit during storage enabled the producers to manage the storing time and fruit freshness before heading out to consumer. Currently, the most reliable method is by tapping the fruit. Experience workers will tap the fruit and hear the sound produced when the fruit is being hit. Immature fruit will produce metallic ringing sound while mature fruit will produce hollow or dull sound. This project aims to develop a measurement system using acoustic method to measure the watermelon fruit firmness mimicking the tapping of the fruit by experience worker. The measurement system uses solenoid to mimicking the tapping of the fruit and microphone to mimic the ears of the experience worker. The measurement system gather the acoustic impulse produce by the fruit once the fruit being hit and evaluate the firmness index (S). Once the measurement system is developed, the evolution of watermelon fruit during storage in 15 days periods was assessed based on the firmness index over number of days. The firmness index of the watermelons decrease as the day goes by at the rate of 0.0856 kg/day. The range value of firmness is between 1.0 × 105 to 4.5 × 105 2/3 −2. Besides that, the hardness and the sweetness level of the watermelons was also evaluated. The hardness of the watermelon show a decrease in trend which are similar to firmness. The range value of hardness is between 4400 to 5550 g. For the sweetness level, the sweetness of the watermelons decrease over time but they are not conclusive. The correlation between firmness and hardness was also evaluated and it seems there is a worthwhile relationship between them. 2021 2022-01-24T07:48:22Z 2022-01-24T07:48:22Z 2017-05 Learning Object http://dspace.unimap.edu.my:80/xmlui/handle/123456789/73660 en Universiti Malaysia Perlis (UniMAP)
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Firmness
Watermelon
Watermelon grading
Acoustic method
Fruit firmness
spellingShingle Firmness
Watermelon
Watermelon grading
Acoustic method
Fruit firmness
Muhammad Aqil, Zulkifli
Firmness evaluation of Watermelon using acoustic method
description Access is limited to UniMAP community.
author2 Mohd Khairul Rabani, Hashim
author_facet Mohd Khairul Rabani, Hashim
Muhammad Aqil, Zulkifli
format Learning Object
author Muhammad Aqil, Zulkifli
author_sort Muhammad Aqil, Zulkifli
title Firmness evaluation of Watermelon using acoustic method
title_short Firmness evaluation of Watermelon using acoustic method
title_full Firmness evaluation of Watermelon using acoustic method
title_fullStr Firmness evaluation of Watermelon using acoustic method
title_full_unstemmed Firmness evaluation of Watermelon using acoustic method
title_sort firmness evaluation of watermelon using acoustic method
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2021
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/73660
_version_ 1729704651409850368
score 13.149126

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