APPLICATION OF MULTIVARIATE ANALYSIS ON DIGITAL IMAGES OF CANNABIS SATIVA L EXTRACTS

<p><em>Cannabis sativa</em> L is one of the most used drugs in the world. Information about the plant’s age and storage can help forensic scientists to identify and to track samples. The ratio between the cannabinoids tetrahydrocannabinol (THC) and cannabinol (CBN) has been related...

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Autores principales:	Jonathaline Apollo Duarte, Marina Gonzalez, Roberta Petry Gorziza, Luiza Manica Caffarate, Leonardo Correa Venturini dos Santos, Sabrina Laiz Buttenbender, Mariana Fernandes Ramos, Flavio Anastácio de Oliveira Camargo, Marco Flôres Ferrão, Renata Pereira Limberger
Formato:	article
Lenguaje:	EN ES FR IT PT
Publicado:	Academia Nacional de Polícia 2020
Materias:	cannabis sativa l. marijuana. chemometrics. pca. hca. gc-fid Social pathology. Social and public welfare. Criminology HV1-9960
Acceso en línea:	https://doaj.org/article/462bb8bb8e0440f1abe6562ee2c9a6e8
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spelling	oai:doaj.org-article:462bb8bb8e0440f1abe6562ee2c9a6e82021-12-02T19:23:14ZAPPLICATION OF MULTIVARIATE ANALYSIS ON DIGITAL IMAGES OF CANNABIS SATIVA L EXTRACTS2178-00132318-691710.31412/rbcp.v11i3.729https://doaj.org/article/462bb8bb8e0440f1abe6562ee2c9a6e82020-09-01T00:00:00Zhttps://periodicos.pf.gov.br/index.php/RBCP/article/view/729https://doaj.org/toc/2178-0013https://doaj.org/toc/2318-6917<p><em>Cannabis sativa</em> L is one of the most used drugs in the world. Information about the plant’s age and storage can help forensic scientists to identify and to track samples. The ratio between the cannabinoids tetrahydrocannabinol (THC) and cannabinol (CBN) has been related to the degradation of cannabis with time. Thus, this study aimed to test Multivariate Image Analysis (MIA) to evaluate cannabis extracts concerning its colors. Initially, 52 samples of <em>Cannabis sativa</em> L. extracts were analyzed by Gas Chromatography coupled to Flame Ionization Detector (GC/FID) to quantify THC and CBN. Afterwards, the extract samples were photographed and analyzed by two different multivariate analysis tools: ChemoStat<sup>®</sup>, a free chemometrics software, and PhotoMetrix PRO<sup>®</sup>, an app for mobile devices. Using exploratory analysis of principal component analysis (PCA) and hierarchical cluster analysis (HCA). It was observed that the more intense the color for an extract, the higher concentration of THC and CBN it has, while the lighter color extracts correspond to samples with no THC. The results suggest to propose a simple method for previous clustering of samples that may precede chromatographic analyzes, assist in chemical profile studies or simply aggregate samples of similar profiles for analyzed together.</p>Jonathaline Apollo DuarteMarina GonzalezRoberta Petry GorzizaLuiza Manica CaffarateLeonardo Correa Venturini dos SantosSabrina Laiz ButtenbenderMariana Fernandes RamosFlavio Anastácio de Oliveira CamargoMarco Flôres FerrãoRenata Pereira LimbergerAcademia Nacional de Políciaarticlecannabis sativa l. marijuana. chemometrics. pca. hca. gc-fidSocial pathology. Social and public welfare. CriminologyHV1-9960ENESFRITPTRevista Brasileira de Ciências Policiais, Vol 11, Iss 3, Pp 25-48 (2020)
institution	DOAJ
collection	DOAJ
language	EN ES FR IT PT
topic	cannabis sativa l. marijuana. chemometrics. pca. hca. gc-fid Social pathology. Social and public welfare. Criminology HV1-9960
spellingShingle	cannabis sativa l. marijuana. chemometrics. pca. hca. gc-fid Social pathology. Social and public welfare. Criminology HV1-9960 Jonathaline Apollo Duarte Marina Gonzalez Roberta Petry Gorziza Luiza Manica Caffarate Leonardo Correa Venturini dos Santos Sabrina Laiz Buttenbender Mariana Fernandes Ramos Flavio Anastácio de Oliveira Camargo Marco Flôres Ferrão Renata Pereira Limberger APPLICATION OF MULTIVARIATE ANALYSIS ON DIGITAL IMAGES OF CANNABIS SATIVA L EXTRACTS
description	<p><em>Cannabis sativa</em> L is one of the most used drugs in the world. Information about the plant’s age and storage can help forensic scientists to identify and to track samples. The ratio between the cannabinoids tetrahydrocannabinol (THC) and cannabinol (CBN) has been related to the degradation of cannabis with time. Thus, this study aimed to test Multivariate Image Analysis (MIA) to evaluate cannabis extracts concerning its colors. Initially, 52 samples of <em>Cannabis sativa</em> L. extracts were analyzed by Gas Chromatography coupled to Flame Ionization Detector (GC/FID) to quantify THC and CBN. Afterwards, the extract samples were photographed and analyzed by two different multivariate analysis tools: ChemoStat<sup>®</sup>, a free chemometrics software, and PhotoMetrix PRO<sup>®</sup>, an app for mobile devices. Using exploratory analysis of principal component analysis (PCA) and hierarchical cluster analysis (HCA). It was observed that the more intense the color for an extract, the higher concentration of THC and CBN it has, while the lighter color extracts correspond to samples with no THC. The results suggest to propose a simple method for previous clustering of samples that may precede chromatographic analyzes, assist in chemical profile studies or simply aggregate samples of similar profiles for analyzed together.</p>
format	article
author	Jonathaline Apollo Duarte Marina Gonzalez Roberta Petry Gorziza Luiza Manica Caffarate Leonardo Correa Venturini dos Santos Sabrina Laiz Buttenbender Mariana Fernandes Ramos Flavio Anastácio de Oliveira Camargo Marco Flôres Ferrão Renata Pereira Limberger
author_facet	Jonathaline Apollo Duarte Marina Gonzalez Roberta Petry Gorziza Luiza Manica Caffarate Leonardo Correa Venturini dos Santos Sabrina Laiz Buttenbender Mariana Fernandes Ramos Flavio Anastácio de Oliveira Camargo Marco Flôres Ferrão Renata Pereira Limberger
author_sort	Jonathaline Apollo Duarte
title	APPLICATION OF MULTIVARIATE ANALYSIS ON DIGITAL IMAGES OF CANNABIS SATIVA L EXTRACTS
title_short	APPLICATION OF MULTIVARIATE ANALYSIS ON DIGITAL IMAGES OF CANNABIS SATIVA L EXTRACTS
title_full	APPLICATION OF MULTIVARIATE ANALYSIS ON DIGITAL IMAGES OF CANNABIS SATIVA L EXTRACTS
title_fullStr	APPLICATION OF MULTIVARIATE ANALYSIS ON DIGITAL IMAGES OF CANNABIS SATIVA L EXTRACTS
title_full_unstemmed	APPLICATION OF MULTIVARIATE ANALYSIS ON DIGITAL IMAGES OF CANNABIS SATIVA L EXTRACTS
title_sort	application of multivariate analysis on digital images of cannabis sativa l extracts
publisher	Academia Nacional de Polícia
publishDate	2020
url	https://doaj.org/article/462bb8bb8e0440f1abe6562ee2c9a6e8
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APPLICATION OF MULTIVARIATE ANALYSIS ON DIGITAL IMAGES OF CANNABIS SATIVA L EXTRACTS

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