Cargando…
Electrical Impedance Spectroscopy for Moisture and Oil Content Prediction in Oil Palm (Elaeis guineensis Jacq.) Fruitlets
The global palm oil industry is targeting an increased oil extraction rate in oil palm milling to meet global demand. This can be achieved through the certification of mills and adherence to bunch grading as part of ensuring that only high-quality and ripe fresh fruit bunches are accepted and proces...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9740719/ https://www.ncbi.nlm.nih.gov/pubmed/36501412 http://dx.doi.org/10.3390/plants11233373 |
_version_ | 1784848135253655552 |
---|---|
author | Chin-Hashim, Nur Fizura Khaled, Alfadhl Yahya Jamaludin, Diyana Abd Aziz, Samsuzana |
author_facet | Chin-Hashim, Nur Fizura Khaled, Alfadhl Yahya Jamaludin, Diyana Abd Aziz, Samsuzana |
author_sort | Chin-Hashim, Nur Fizura |
collection | PubMed |
description | The global palm oil industry is targeting an increased oil extraction rate in oil palm milling to meet global demand. This can be achieved through the certification of mills and adherence to bunch grading as part of ensuring that only high-quality and ripe fresh fruit bunches are accepted and processed at all mills. However, the current grading process requires the analysis of oil palm bunches, which is laborious and tedious or prone to error due to human subjectivity. This paper introduces a non-destructive technique to predict the moisture and oil content in oil palm fruitlets using electrical impedance spectroscopy. In total, 90 samples of oil palm fruitlets at different stages of ripeness were acquired. Electrical impedance measurement of each fruitlet was done using electrocardiogram (ECG) electrodes connected to an LCR meter at frequencies of 1 kHz, 10 kHz, 20 kHz, and 100 kHz. The actual oil content in the fruitlets was determined using the Soxhlet extraction method, while the actual moisture content was determined using a standard oven-drying method. The variation of electrical impedance values at each frequency was analyzed. At 100 kHz, the correlation coefficients relating the electrical impedance to the moisture and oil content were around −0.84 and 0.80, respectively. Predictions of the moisture and oil content using linear regression of the impedance measurements at 100 kHz gave RMSE values of 5.85% and 5.71%, respectively. This information is useful for oil palm fruit grading and oil yield production estimation in the palm oil industry. |
format | Online Article Text |
id | pubmed-9740719 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-97407192022-12-11 Electrical Impedance Spectroscopy for Moisture and Oil Content Prediction in Oil Palm (Elaeis guineensis Jacq.) Fruitlets Chin-Hashim, Nur Fizura Khaled, Alfadhl Yahya Jamaludin, Diyana Abd Aziz, Samsuzana Plants (Basel) Article The global palm oil industry is targeting an increased oil extraction rate in oil palm milling to meet global demand. This can be achieved through the certification of mills and adherence to bunch grading as part of ensuring that only high-quality and ripe fresh fruit bunches are accepted and processed at all mills. However, the current grading process requires the analysis of oil palm bunches, which is laborious and tedious or prone to error due to human subjectivity. This paper introduces a non-destructive technique to predict the moisture and oil content in oil palm fruitlets using electrical impedance spectroscopy. In total, 90 samples of oil palm fruitlets at different stages of ripeness were acquired. Electrical impedance measurement of each fruitlet was done using electrocardiogram (ECG) electrodes connected to an LCR meter at frequencies of 1 kHz, 10 kHz, 20 kHz, and 100 kHz. The actual oil content in the fruitlets was determined using the Soxhlet extraction method, while the actual moisture content was determined using a standard oven-drying method. The variation of electrical impedance values at each frequency was analyzed. At 100 kHz, the correlation coefficients relating the electrical impedance to the moisture and oil content were around −0.84 and 0.80, respectively. Predictions of the moisture and oil content using linear regression of the impedance measurements at 100 kHz gave RMSE values of 5.85% and 5.71%, respectively. This information is useful for oil palm fruit grading and oil yield production estimation in the palm oil industry. MDPI 2022-12-05 /pmc/articles/PMC9740719/ /pubmed/36501412 http://dx.doi.org/10.3390/plants11233373 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Chin-Hashim, Nur Fizura Khaled, Alfadhl Yahya Jamaludin, Diyana Abd Aziz, Samsuzana Electrical Impedance Spectroscopy for Moisture and Oil Content Prediction in Oil Palm (Elaeis guineensis Jacq.) Fruitlets |
title | Electrical Impedance Spectroscopy for Moisture and Oil Content Prediction in Oil Palm (Elaeis guineensis Jacq.) Fruitlets |
title_full | Electrical Impedance Spectroscopy for Moisture and Oil Content Prediction in Oil Palm (Elaeis guineensis Jacq.) Fruitlets |
title_fullStr | Electrical Impedance Spectroscopy for Moisture and Oil Content Prediction in Oil Palm (Elaeis guineensis Jacq.) Fruitlets |
title_full_unstemmed | Electrical Impedance Spectroscopy for Moisture and Oil Content Prediction in Oil Palm (Elaeis guineensis Jacq.) Fruitlets |
title_short | Electrical Impedance Spectroscopy for Moisture and Oil Content Prediction in Oil Palm (Elaeis guineensis Jacq.) Fruitlets |
title_sort | electrical impedance spectroscopy for moisture and oil content prediction in oil palm (elaeis guineensis jacq.) fruitlets |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9740719/ https://www.ncbi.nlm.nih.gov/pubmed/36501412 http://dx.doi.org/10.3390/plants11233373 |
work_keys_str_mv | AT chinhashimnurfizura electricalimpedancespectroscopyformoistureandoilcontentpredictioninoilpalmelaeisguineensisjacqfruitlets AT khaledalfadhlyahya electricalimpedancespectroscopyformoistureandoilcontentpredictioninoilpalmelaeisguineensisjacqfruitlets AT jamaludindiyana electricalimpedancespectroscopyformoistureandoilcontentpredictioninoilpalmelaeisguineensisjacqfruitlets AT abdazizsamsuzana electricalimpedancespectroscopyformoistureandoilcontentpredictioninoilpalmelaeisguineensisjacqfruitlets |