Determination of optimum harvest maturity and non-destructive evaluation of pod development and maturity in cacao (Theobroma cacao L.) using a multiparametric fluorescence sensor

Background: A series of fluorescence indices (anthocyanin, flavonol, chlorophyll and nitrogen balance) were deployed to detect the pigments and colourless flavonoids in cacao pods of three commercial cacao (Theobroma cacao L.) genotypes (QH1003, KKM22 and MCBC1) using a fast and non-destructive mu...

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Main Authors: Yei, Kheng Tee, Balasundram, Siva Kumar, Ding, Phebe, Mohd. Hanif, Ahmad Husni, Sulaiman, Khairul Bariah
Format: Article
Language:English
Published: John Wiley & Sons 2019
Online Access:http://psasir.upm.edu.my/id/eprint/81122/1/CACAO.pdf
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author Yei, Kheng Tee
Balasundram, Siva Kumar
Ding, Phebe
Mohd. Hanif, Ahmad Husni
Sulaiman, Khairul Bariah
author_facet Yei, Kheng Tee
Balasundram, Siva Kumar
Ding, Phebe
Mohd. Hanif, Ahmad Husni
Sulaiman, Khairul Bariah
author_sort Yei, Kheng Tee
collection UPM
description Background: A series of fluorescence indices (anthocyanin, flavonol, chlorophyll and nitrogen balance) were deployed to detect the pigments and colourless flavonoids in cacao pods of three commercial cacao (Theobroma cacao L.) genotypes (QH1003, KKM22 and MCBC1) using a fast and non-destructive multiparametric fluorescence sensor. The aim was to determine optimum harvest periods (either 4 or 5 months after pod emergence) of commercial cacao based on fluorescence indices of cacao development and bean quality. Results: As pod developed, cacao exhibited a rise with the peak of flavonol occurring at months 4 and 5 after pod maturity was initiated while nitrogen balance showed a decreasing trend during maturity. Cacao pods contained high chlorophyll as they developed but chlorophyll content declined significantly on pods that ripened at month 5. Conclusion: Cacao pods harvested at months 4 and 5 can be considered as commercially-ready as the beans have developed good quality and comply with the Malaysian standard on cacao bean specification. Thus, cacao pods can be harvested earlier when they reach maturity at month 4 after pod emergence to avoid germinated beans and over fermentation in ripe pods harvested at month 5.
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spelling upm.eprints-811222020-10-14T20:59:23Z http://psasir.upm.edu.my/id/eprint/81122/ Determination of optimum harvest maturity and non-destructive evaluation of pod development and maturity in cacao (Theobroma cacao L.) using a multiparametric fluorescence sensor Yei, Kheng Tee Balasundram, Siva Kumar Ding, Phebe Mohd. Hanif, Ahmad Husni Sulaiman, Khairul Bariah Background: A series of fluorescence indices (anthocyanin, flavonol, chlorophyll and nitrogen balance) were deployed to detect the pigments and colourless flavonoids in cacao pods of three commercial cacao (Theobroma cacao L.) genotypes (QH1003, KKM22 and MCBC1) using a fast and non-destructive multiparametric fluorescence sensor. The aim was to determine optimum harvest periods (either 4 or 5 months after pod emergence) of commercial cacao based on fluorescence indices of cacao development and bean quality. Results: As pod developed, cacao exhibited a rise with the peak of flavonol occurring at months 4 and 5 after pod maturity was initiated while nitrogen balance showed a decreasing trend during maturity. Cacao pods contained high chlorophyll as they developed but chlorophyll content declined significantly on pods that ripened at month 5. Conclusion: Cacao pods harvested at months 4 and 5 can be considered as commercially-ready as the beans have developed good quality and comply with the Malaysian standard on cacao bean specification. Thus, cacao pods can be harvested earlier when they reach maturity at month 4 after pod emergence to avoid germinated beans and over fermentation in ripe pods harvested at month 5. John Wiley & Sons 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/81122/1/CACAO.pdf Yei, Kheng Tee and Balasundram, Siva Kumar and Ding, Phebe and Mohd. Hanif, Ahmad Husni and Sulaiman, Khairul Bariah (2019) Determination of optimum harvest maturity and non-destructive evaluation of pod development and maturity in cacao (Theobroma cacao L.) using a multiparametric fluorescence sensor. Journal of the Science of Food and Agriculture, 99 (4). pp. 1700-1708. ISSN 1097-0010; ESSN: 0022-5142 https://pubmed.ncbi.nlm.nih.gov/30206959/ 10.1002/jsfa.9359
spellingShingle Yei, Kheng Tee
Balasundram, Siva Kumar
Ding, Phebe
Mohd. Hanif, Ahmad Husni
Sulaiman, Khairul Bariah
Determination of optimum harvest maturity and non-destructive evaluation of pod development and maturity in cacao (Theobroma cacao L.) using a multiparametric fluorescence sensor
title Determination of optimum harvest maturity and non-destructive evaluation of pod development and maturity in cacao (Theobroma cacao L.) using a multiparametric fluorescence sensor
title_full Determination of optimum harvest maturity and non-destructive evaluation of pod development and maturity in cacao (Theobroma cacao L.) using a multiparametric fluorescence sensor
title_fullStr Determination of optimum harvest maturity and non-destructive evaluation of pod development and maturity in cacao (Theobroma cacao L.) using a multiparametric fluorescence sensor
title_full_unstemmed Determination of optimum harvest maturity and non-destructive evaluation of pod development and maturity in cacao (Theobroma cacao L.) using a multiparametric fluorescence sensor
title_short Determination of optimum harvest maturity and non-destructive evaluation of pod development and maturity in cacao (Theobroma cacao L.) using a multiparametric fluorescence sensor
title_sort determination of optimum harvest maturity and non destructive evaluation of pod development and maturity in cacao theobroma cacao l using a multiparametric fluorescence sensor
url http://psasir.upm.edu.my/id/eprint/81122/1/CACAO.pdf
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