Colorimetric assessment of kava (Piper methysticum Forst.) quality
The present study aimed at evaluating the potential of diethyl ether extracts UV/visible (UV/vis) absorbance for assessing the suitability of commercial lots of kava (Piper methysticum). The UV/vis absorption spectra of diethyl ether root extracts of 15 cultivars clustered them into three groups in parallel to their known genetic relatedness and their chemical composition determined by GC–MS and LC–MS analyses. Absorption peaks at 250 nm and 290 nm respectively corresponded to kavain, the most health-promoting kavalactone, and dihydromethysticin a non-desirable kavalactone. The absorbance peak at 340–350 nm reflected the yellow coloration of the extract, which was mainly due to the undesirable flavokavins, desmethoxyyangonin and yangonin. Ratios of absorbance values at 250 nm and 290 nm significantly differentiated all three groups of cultivars, namely 'noble' which provide health benefits from 'two-day' and 'wichmannii' that are health damaging. These results provide a robust and rapid colorimetric test for routine control of a critical aspect of the quality of kava batches.
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Subjects: | Q04 - Composition des produits alimentaires, Q02 - Traitement et conservation des produits alimentaires, U30 - Méthodes de recherche, Piper methysticum, qualité, contrôle de qualité, composition des aliments, technique analytique, colorimétrie, chalcone, lactone, http://aims.fao.org/aos/agrovoc/c_5918, http://aims.fao.org/aos/agrovoc/c_6400, http://aims.fao.org/aos/agrovoc/c_6401, http://aims.fao.org/aos/agrovoc/c_10961, http://aims.fao.org/aos/agrovoc/c_1513, http://aims.fao.org/aos/agrovoc/c_16368, http://aims.fao.org/aos/agrovoc/c_28283, http://aims.fao.org/aos/agrovoc/c_4145, http://aims.fao.org/aos/agrovoc/c_5159, |
Online Access: | http://agritrop.cirad.fr/583772/ http://agritrop.cirad.fr/583772/1/Colorimetric%20assessment%20of%20kava%20quality%202017.pdf |
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dig-cirad-fr-5837722024-01-29T00:08:36Z http://agritrop.cirad.fr/583772/ http://agritrop.cirad.fr/583772/ Colorimetric assessment of kava (Piper methysticum Forst.) quality. Lhuissier Tiphaine, Mercier Pierre-Edouard, Michalet Serge, Lebot Vincent, Legendre Laurent. 2017. Journal of Food Composition and Analysis, 59 : 27-34.https://doi.org/10.1016/j.jfca.2017.02.005 <https://doi.org/10.1016/j.jfca.2017.02.005> Colorimetric assessment of kava (Piper methysticum Forst.) quality Lhuissier, Tiphaine Mercier, Pierre-Edouard Michalet, Serge Lebot, Vincent Legendre, Laurent eng 2017 Journal of Food Composition and Analysis Q04 - Composition des produits alimentaires Q02 - Traitement et conservation des produits alimentaires U30 - Méthodes de recherche Piper methysticum qualité contrôle de qualité composition des aliments technique analytique colorimétrie chalcone lactone http://aims.fao.org/aos/agrovoc/c_5918 http://aims.fao.org/aos/agrovoc/c_6400 http://aims.fao.org/aos/agrovoc/c_6401 http://aims.fao.org/aos/agrovoc/c_10961 http://aims.fao.org/aos/agrovoc/c_1513 http://aims.fao.org/aos/agrovoc/c_16368 http://aims.fao.org/aos/agrovoc/c_28283 http://aims.fao.org/aos/agrovoc/c_4145 Vanuatu http://aims.fao.org/aos/agrovoc/c_5159 The present study aimed at evaluating the potential of diethyl ether extracts UV/visible (UV/vis) absorbance for assessing the suitability of commercial lots of kava (Piper methysticum). The UV/vis absorption spectra of diethyl ether root extracts of 15 cultivars clustered them into three groups in parallel to their known genetic relatedness and their chemical composition determined by GC–MS and LC–MS analyses. Absorption peaks at 250 nm and 290 nm respectively corresponded to kavain, the most health-promoting kavalactone, and dihydromethysticin a non-desirable kavalactone. The absorbance peak at 340–350 nm reflected the yellow coloration of the extract, which was mainly due to the undesirable flavokavins, desmethoxyyangonin and yangonin. Ratios of absorbance values at 250 nm and 290 nm significantly differentiated all three groups of cultivars, namely 'noble' which provide health benefits from 'two-day' and 'wichmannii' that are health damaging. These results provide a robust and rapid colorimetric test for routine control of a critical aspect of the quality of kava batches. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/583772/1/Colorimetric%20assessment%20of%20kava%20quality%202017.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.jfca.2017.02.005 10.1016/j.jfca.2017.02.005 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jfca.2017.02.005 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.jfca.2017.02.005 |
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Q04 - Composition des produits alimentaires Q02 - Traitement et conservation des produits alimentaires U30 - Méthodes de recherche Piper methysticum qualité contrôle de qualité composition des aliments technique analytique colorimétrie chalcone lactone http://aims.fao.org/aos/agrovoc/c_5918 http://aims.fao.org/aos/agrovoc/c_6400 http://aims.fao.org/aos/agrovoc/c_6401 http://aims.fao.org/aos/agrovoc/c_10961 http://aims.fao.org/aos/agrovoc/c_1513 http://aims.fao.org/aos/agrovoc/c_16368 http://aims.fao.org/aos/agrovoc/c_28283 http://aims.fao.org/aos/agrovoc/c_4145 http://aims.fao.org/aos/agrovoc/c_5159 Q04 - Composition des produits alimentaires Q02 - Traitement et conservation des produits alimentaires U30 - Méthodes de recherche Piper methysticum qualité contrôle de qualité composition des aliments technique analytique colorimétrie chalcone lactone http://aims.fao.org/aos/agrovoc/c_5918 http://aims.fao.org/aos/agrovoc/c_6400 http://aims.fao.org/aos/agrovoc/c_6401 http://aims.fao.org/aos/agrovoc/c_10961 http://aims.fao.org/aos/agrovoc/c_1513 http://aims.fao.org/aos/agrovoc/c_16368 http://aims.fao.org/aos/agrovoc/c_28283 http://aims.fao.org/aos/agrovoc/c_4145 http://aims.fao.org/aos/agrovoc/c_5159 |
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Q04 - Composition des produits alimentaires Q02 - Traitement et conservation des produits alimentaires U30 - Méthodes de recherche Piper methysticum qualité contrôle de qualité composition des aliments technique analytique colorimétrie chalcone lactone http://aims.fao.org/aos/agrovoc/c_5918 http://aims.fao.org/aos/agrovoc/c_6400 http://aims.fao.org/aos/agrovoc/c_6401 http://aims.fao.org/aos/agrovoc/c_10961 http://aims.fao.org/aos/agrovoc/c_1513 http://aims.fao.org/aos/agrovoc/c_16368 http://aims.fao.org/aos/agrovoc/c_28283 http://aims.fao.org/aos/agrovoc/c_4145 http://aims.fao.org/aos/agrovoc/c_5159 Q04 - Composition des produits alimentaires Q02 - Traitement et conservation des produits alimentaires U30 - Méthodes de recherche Piper methysticum qualité contrôle de qualité composition des aliments technique analytique colorimétrie chalcone lactone http://aims.fao.org/aos/agrovoc/c_5918 http://aims.fao.org/aos/agrovoc/c_6400 http://aims.fao.org/aos/agrovoc/c_6401 http://aims.fao.org/aos/agrovoc/c_10961 http://aims.fao.org/aos/agrovoc/c_1513 http://aims.fao.org/aos/agrovoc/c_16368 http://aims.fao.org/aos/agrovoc/c_28283 http://aims.fao.org/aos/agrovoc/c_4145 http://aims.fao.org/aos/agrovoc/c_5159 Lhuissier, Tiphaine Mercier, Pierre-Edouard Michalet, Serge Lebot, Vincent Legendre, Laurent Colorimetric assessment of kava (Piper methysticum Forst.) quality |
description |
The present study aimed at evaluating the potential of diethyl ether extracts UV/visible (UV/vis) absorbance for assessing the suitability of commercial lots of kava (Piper methysticum). The UV/vis absorption spectra of diethyl ether root extracts of 15 cultivars clustered them into three groups in parallel to their known genetic relatedness and their chemical composition determined by GC–MS and LC–MS analyses. Absorption peaks at 250 nm and 290 nm respectively corresponded to kavain, the most health-promoting kavalactone, and dihydromethysticin a non-desirable kavalactone. The absorbance peak at 340–350 nm reflected the yellow coloration of the extract, which was mainly due to the undesirable flavokavins, desmethoxyyangonin and yangonin. Ratios of absorbance values at 250 nm and 290 nm significantly differentiated all three groups of cultivars, namely 'noble' which provide health benefits from 'two-day' and 'wichmannii' that are health damaging. These results provide a robust and rapid colorimetric test for routine control of a critical aspect of the quality of kava batches. |
format |
article |
topic_facet |
Q04 - Composition des produits alimentaires Q02 - Traitement et conservation des produits alimentaires U30 - Méthodes de recherche Piper methysticum qualité contrôle de qualité composition des aliments technique analytique colorimétrie chalcone lactone http://aims.fao.org/aos/agrovoc/c_5918 http://aims.fao.org/aos/agrovoc/c_6400 http://aims.fao.org/aos/agrovoc/c_6401 http://aims.fao.org/aos/agrovoc/c_10961 http://aims.fao.org/aos/agrovoc/c_1513 http://aims.fao.org/aos/agrovoc/c_16368 http://aims.fao.org/aos/agrovoc/c_28283 http://aims.fao.org/aos/agrovoc/c_4145 http://aims.fao.org/aos/agrovoc/c_5159 |
author |
Lhuissier, Tiphaine Mercier, Pierre-Edouard Michalet, Serge Lebot, Vincent Legendre, Laurent |
author_facet |
Lhuissier, Tiphaine Mercier, Pierre-Edouard Michalet, Serge Lebot, Vincent Legendre, Laurent |
author_sort |
Lhuissier, Tiphaine |
title |
Colorimetric assessment of kava (Piper methysticum Forst.) quality |
title_short |
Colorimetric assessment of kava (Piper methysticum Forst.) quality |
title_full |
Colorimetric assessment of kava (Piper methysticum Forst.) quality |
title_fullStr |
Colorimetric assessment of kava (Piper methysticum Forst.) quality |
title_full_unstemmed |
Colorimetric assessment of kava (Piper methysticum Forst.) quality |
title_sort |
colorimetric assessment of kava (piper methysticum forst.) quality |
url |
http://agritrop.cirad.fr/583772/ http://agritrop.cirad.fr/583772/1/Colorimetric%20assessment%20of%20kava%20quality%202017.pdf |
work_keys_str_mv |
AT lhuissiertiphaine colorimetricassessmentofkavapipermethysticumforstquality AT mercierpierreedouard colorimetricassessmentofkavapipermethysticumforstquality AT michaletserge colorimetricassessmentofkavapipermethysticumforstquality AT lebotvincent colorimetricassessmentofkavapipermethysticumforstquality AT legendrelaurent colorimetricassessmentofkavapipermethysticumforstquality |
_version_ |
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