Microwave technique for moisture content and pH determination during pre-harvest of mango cv. Chok Anan
The maturity of mango is usually assessed by the determination of its moisture content (m.c.), soluble solid content (SSC) and pH. However, these techniques are either time consuming, tedious or destructive. In this research, we extend the application of the open-ended coaxial probe technique to det...
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2018
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ukm-121762018-10-09T20:22:05Z http://journalarticle.ukm.my/12176/ Microwave technique for moisture content and pH determination during pre-harvest of mango cv. Chok Anan Noradira Suhaime, Masniza Sairi, Zulkifly Abbas, Nur Biha Mohamed Nafis, Zaulia Othman, Amir Syariffuddeen Mhd Adnan, Amir Redzuan Shamsulkamal, Suriati Paiman, Tity Nazleen Mohamed, The maturity of mango is usually assessed by the determination of its moisture content (m.c.), soluble solid content (SSC) and pH. However, these techniques are either time consuming, tedious or destructive. In this research, we extend the application of the open-ended coaxial probe technique to determine m.c. and pH of Chok Anan mango from its dielectric properties from week 5 to week 17 after anthesis. The effects of frequency and m.c. on the values of the dielectric constant and loss factor were also investigated. The critical frequency separating the different polarizations was found to be inversely proportional to m.c. Also, in this research we proposed a new classification of fruit ripeness related to the number of weeks after anthesis. The actual dielectric properties, m.c., SSC and pH of Chok Anan mango were measured using standard methods. Relationships were established between the dielectric constant, loss factor, critical frequency, pH and m.c. The accuracy for the determination of m.c. and pH using the coaxial probe was within 1.7% and 3.0%, respectively. Penerbit Universiti Kebangsaan Malaysia 2018-07 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/12176/1/27%20Noradira%20Suhaime.pdf Noradira Suhaime, and Masniza Sairi, and Zulkifly Abbas, and Nur Biha Mohamed Nafis, and Zaulia Othman, and Amir Syariffuddeen Mhd Adnan, and Amir Redzuan Shamsulkamal, and Suriati Paiman, and Tity Nazleen Mohamed, (2018) Microwave technique for moisture content and pH determination during pre-harvest of mango cv. Chok Anan. Sains Malaysiana, 47 (7). pp. 1571-1578. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol47num7_2018/contentsVol47num7_2018.html |
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The maturity of mango is usually assessed by the determination of its moisture content (m.c.), soluble solid content (SSC) and pH. However, these techniques are either time consuming, tedious or destructive. In this research, we extend the application of the open-ended coaxial probe technique to determine m.c. and pH of Chok Anan mango from its dielectric properties from week 5 to week 17 after anthesis. The effects of frequency and m.c. on the values of the dielectric constant and loss factor were also investigated. The critical frequency separating the different polarizations was found to be inversely proportional to m.c. Also, in this research we proposed a new classification of fruit ripeness related to the number of weeks after anthesis. The actual dielectric properties, m.c., SSC and pH of Chok Anan mango were measured using standard methods. Relationships were established between the dielectric constant, loss factor, critical frequency, pH and m.c. The accuracy for the determination of m.c. and pH using the coaxial probe was within 1.7% and 3.0%, respectively. |
format |
Article |
author |
Noradira Suhaime, Masniza Sairi, Zulkifly Abbas, Nur Biha Mohamed Nafis, Zaulia Othman, Amir Syariffuddeen Mhd Adnan, Amir Redzuan Shamsulkamal, Suriati Paiman, Tity Nazleen Mohamed, |
spellingShingle |
Noradira Suhaime, Masniza Sairi, Zulkifly Abbas, Nur Biha Mohamed Nafis, Zaulia Othman, Amir Syariffuddeen Mhd Adnan, Amir Redzuan Shamsulkamal, Suriati Paiman, Tity Nazleen Mohamed, Microwave technique for moisture content and pH determination during pre-harvest of mango cv. Chok Anan |
author_facet |
Noradira Suhaime, Masniza Sairi, Zulkifly Abbas, Nur Biha Mohamed Nafis, Zaulia Othman, Amir Syariffuddeen Mhd Adnan, Amir Redzuan Shamsulkamal, Suriati Paiman, Tity Nazleen Mohamed, |
author_sort |
Noradira Suhaime, |
title |
Microwave technique for moisture content and pH determination
during pre-harvest of mango cv. Chok Anan |
title_short |
Microwave technique for moisture content and pH determination
during pre-harvest of mango cv. Chok Anan |
title_full |
Microwave technique for moisture content and pH determination
during pre-harvest of mango cv. Chok Anan |
title_fullStr |
Microwave technique for moisture content and pH determination
during pre-harvest of mango cv. Chok Anan |
title_full_unstemmed |
Microwave technique for moisture content and pH determination
during pre-harvest of mango cv. Chok Anan |
title_sort |
microwave technique for moisture content and ph determination
during pre-harvest of mango cv. chok anan |
publisher |
Penerbit Universiti Kebangsaan Malaysia |
publishDate |
2018 |
url |
http://journalarticle.ukm.my/12176/ http://journalarticle.ukm.my/12176/ http://journalarticle.ukm.my/12176/1/27%20Noradira%20Suhaime.pdf |
first_indexed |
2023-09-18T20:02:02Z |
last_indexed |
2023-09-18T20:02:02Z |
_version_ |
1777406912350912512 |