{"id":52354,"date":"2025-11-18T13:11:02","date_gmt":"2025-11-18T12:11:02","guid":{"rendered":"https:\/\/grupoalava.rearmachine.com\/ingenieros\/aplicaciones\/luta-contra-a-fraude-adulteracoes-no-cacau\/"},"modified":"2026-06-08T13:29:49","modified_gmt":"2026-06-08T11:29:49","slug":"luta-contra-a-fraude-adulteracoes-no-cacau","status":"publish","type":"aplicaciones","link":"https:\/\/grupoalava.rearmachine.com\/pt\/mra\/aplicaciones\/luta-contra-a-fraude-adulteracoes-no-cacau\/","title":{"rendered":"Luta contra a fraude: adultera\u00e7\u00f5es no cacau"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:calc( 1250px + 30px );margin-left: calc(-30px \/ 2 );margin-right: calc(-30px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-blend:overlay;--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:15px;--awb-margin-bottom-large:0px;--awb-spacing-left-large:15px;--awb-width-medium:100%;--awb-spacing-right-medium:15px;--awb-spacing-left-medium:15px;--awb-width-small:100%;--awb-spacing-right-small:15px;--awb-spacing-left-small:15px;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><p style=\"font-size: 19px;\" data-fusion-font=\"true\"><b>Um analisador NIR port\u00e1til para detetar adultera\u00e7\u00f5es no cacau permitir-nos-\u00e1:<\/b><\/p>\n<ul>\n<li>Determina\u00e7\u00e3o e quantifica\u00e7\u00e3o dos par\u00e2metros de qualidade na mat\u00e9ria-prima.<\/li>\n<li>Realiza\u00e7\u00e3o de medi\u00e7\u00f5es mesmo atrav\u00e9s de embalagens de pl\u00e1stico.<\/li>\n<li>Dispositivo port\u00e1til para ser utilizado no armaz\u00e9m ou no exterior.<\/li>\n<li>F\u00e1cil utiliza\u00e7\u00e3o gra\u00e7as \u00e0 sua interface intuitiva e ao seu ecr\u00e3 t\u00e1til.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:calc( 1250px + 30px );margin-left: calc(-30px \/ 2 );margin-right: calc(-30px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:15px;--awb-margin-bottom-large:20px;--awb-spacing-left-large:15px;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:15px;--awb-spacing-left-medium:15px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:15px;--awb-spacing-left-small:15px;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-2\"><p><span style=\"font-size: 19px;\" data-fusion-font=\"true\"><b>Visum palm: controlo de qualidade in situ para detetar adultera\u00e7\u00f5es<\/b><\/span><\/p>\n<div>\n<p><span style=\"font-size: 19px;\"> <\/span><\/p>\n<div>\n<p>A globaliza\u00e7\u00e3o da distribui\u00e7\u00e3o alimentar origina muitas oportunidades para a fraude, que inclui problemas econ\u00f3micos e de seguran\u00e7a alimentar. Por isso, a dete\u00e7\u00e3o de adultera\u00e7\u00f5es na mat\u00e9ria-prima \u00e9 crucial para as empresas. <\/p>\n<p><b>O cacau em p\u00f3 foi inclu\u00eddo como um dos 25 ingredientes mais adulterados<\/b>, de acordo com uma base de dados de fraudes alimentares. Al\u00e9m disso, as fraudes de cacau mais recentes na Europa relatam at\u00e9 um comparado com os valores refletidos nos r\u00f3tulos. <\/p>\n<p>Os produtos de cacau podem ser <b>adulterados com uma ampla gama de produtos<\/b>, incluindo araruta, farinha, chic\u00f3ria, cascas de amendoim, farinha de soja, entre outros.<\/p>\n<p>Os m\u00e9todos cl\u00e1ssicos para a an\u00e1lise de cacau em p\u00f3, como a cromatografia l\u00edquida, s\u00e3o complicados e exigem muito tempo de dedica\u00e7\u00e3o. A <b>espectroscopia de infravermelhos (NIR)<\/b> oferece a vantagem de obter resultados de uma forma mais r\u00e1pida e f\u00e1cil, atrav\u00e9s de an\u00e1lises n\u00e3o destrutivas. Al\u00e9m disso, esta mesma tecnologia pode ser utilizada para o controlo de qualidade de outros produtos como o <a href=\"https:\/\/www.vision-artificial.es\/2021\/03\/01\/control-de-calidad-en-aceites\/\">\u00f3leo<\/a> ou <a href=\"https:\/\/www.vision-artificial.es\/2021\/03\/01\/determinacion-del-contenido-en-humedad-en-snacks\/\">snacks<\/a>.  <\/p>\n<p><b><span style=\"background-color: rgba(0, 0, 0, 0); letter-spacing: 0.21px; font-size: 19px;\" data-fusion-font=\"true\">Caso de estudo:<\/span><\/b><\/p>\n<p>Atrav\u00e9s do analisador port\u00e1til <b>VISUM Palm<\/b>, foi adquirido o espectro de um grande n\u00famero de amostras de cacau em p\u00f3 adulterado com farinha de trigo em diferentes propor\u00e7\u00f5es (de 0 a 100%) atrav\u00e9s dos sacos de pl\u00e1stico que as continham.<\/p>\n<p>As <b>diferen\u00e7as das \u201cimpress\u00f5es digitais espectrais\u201d<\/b> entre ambos os produtos s\u00e3o muito claras. O NIR permite ver estas diferen\u00e7as, que s\u00e3o indetet\u00e1veis a olho humano. <\/p>\n<\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-3 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:calc( 1250px + 30px );margin-left: calc(-30px \/ 2 );margin-right: calc(-30px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_2_3 2_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:66.666666666667%;--awb-margin-top-large:0px;--awb-spacing-right-large:15px;--awb-margin-bottom-large:20px;--awb-spacing-left-large:15px;--awb-width-medium:66.666666666667%;--awb-order-medium:0;--awb-spacing-right-medium:15px;--awb-spacing-left-medium:15px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:15px;--awb-spacing-left-small:15px;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-image-element\" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"300\" height=\"163\" alt=\"Las diferencias de las \u201chuellas espectrales\u201d entre ambos productos son muy claras. El NIR permite ver estas diferencias, que mediante el ojo humano son indetectables.\" title=\"grafica cacao\" src=\"https:\/\/grupoalava.rearmachine.com\/wp-content\/uploads\/2025\/11\/grafica-cacao-300x163.png\" class=\"img-responsive wp-image-47951\" srcset=\"https:\/\/grupoalava.rearmachine.com\/wp-content\/uploads\/2025\/11\/grafica-cacao-200x109.png 200w, https:\/\/grupoalava.rearmachine.com\/wp-content\/uploads\/2025\/11\/grafica-cacao-400x217.png 400w, https:\/\/grupoalava.rearmachine.com\/wp-content\/uploads\/2025\/11\/grafica-cacao-600x326.png 600w, https:\/\/grupoalava.rearmachine.com\/wp-content\/uploads\/2025\/11\/grafica-cacao-800x434.png 800w, https:\/\/grupoalava.rearmachine.com\/wp-content\/uploads\/2025\/11\/grafica-cacao.png 871w\" sizes=\"(max-width: 768px) 100vw, 300px\" \/><\/span><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-4 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:calc( 1250px + 30px );margin-left: calc(-30px \/ 2 );margin-right: calc(-30px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion_builder_column_2_3 2_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:66.666666666667%;--awb-margin-top-large:0px;--awb-spacing-right-large:15px;--awb-margin-bottom-large:20px;--awb-spacing-left-large:15px;--awb-width-medium:66.666666666667%;--awb-order-medium:0;--awb-spacing-right-medium:15px;--awb-spacing-left-medium:15px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:15px;--awb-spacing-left-small:15px;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-3\"><p><i>Diferen\u00e7as entre o espectro de farinha e cacau<\/i><\/p>\n<p>Com os dados espectrais adquiridos, foi desenvolvido um modelo quimiom\u00e9trico para determinar a percentagem em peso de farinha presente em cada saco. O modelo foi integrado no VISUM Palm, permitindo ao dispositivo detetar e quantificar, em quest\u00e3o de segundos, a percentagem do adulterante (farinha) presente no cacau em p\u00f3 com uma precis\u00e3o de 3,5 %.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-4 fusion_builder_column_1_3 1_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:33.333333333333%;--awb-margin-top-large:0px;--awb-spacing-right-large:15px;--awb-margin-bottom-large:20px;--awb-spacing-left-large:15px;--awb-width-medium:33.333333333333%;--awb-order-medium:0;--awb-spacing-right-medium:15px;--awb-spacing-left-medium:15px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:15px;--awb-spacing-left-small:15px;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-image-element\" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-2 hover-type-none\"><img decoding=\"async\" width=\"300\" height=\"205\" alt=\"Diferencias entre el espectro de harina y cacao\" title=\"cacao y harina\" src=\"https:\/\/grupoalava.rearmachine.com\/wp-content\/uploads\/2025\/11\/caco-y-harina-300x205.jpg\" class=\"img-responsive wp-image-47947\" srcset=\"https:\/\/grupoalava.rearmachine.com\/wp-content\/uploads\/2025\/11\/caco-y-harina-200x137.jpg 200w, https:\/\/grupoalava.rearmachine.com\/wp-content\/uploads\/2025\/11\/caco-y-harina-400x273.jpg 400w, https:\/\/grupoalava.rearmachine.com\/wp-content\/uploads\/2025\/11\/caco-y-harina.jpg 583w\" sizes=\"(max-width: 768px) 100vw, 300px\" \/><\/span><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-5 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:calc( 1250px + 30px );margin-left: calc(-30px \/ 2 );margin-right: calc(-30px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-5 fusion_builder_column_2_3 2_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:66.666666666667%;--awb-margin-top-large:0px;--awb-spacing-right-large:15px;--awb-margin-bottom-large:20px;--awb-spacing-left-large:15px;--awb-width-medium:66.666666666667%;--awb-order-medium:0;--awb-spacing-right-medium:15px;--awb-spacing-left-medium:15px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:15px;--awb-spacing-left-small:15px;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-image-element\" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-3 hover-type-none\"><img decoding=\"async\" width=\"300\" height=\"243\" alt=\"Correlaci\u00f3n entre el predictivo por el modelo y el porcentaje real de harina\" title=\"grafica harina\" src=\"https:\/\/grupoalava.rearmachine.com\/wp-content\/uploads\/2025\/11\/grafica-harina-300x243.png\" class=\"img-responsive wp-image-47953\" srcset=\"https:\/\/grupoalava.rearmachine.com\/wp-content\/uploads\/2025\/11\/grafica-harina-200x162.png 200w, https:\/\/grupoalava.rearmachine.com\/wp-content\/uploads\/2025\/11\/grafica-harina-400x324.png 400w, https:\/\/grupoalava.rearmachine.com\/wp-content\/uploads\/2025\/11\/grafica-harina.png 596w\" sizes=\"(max-width: 768px) 100vw, 300px\" \/><\/span><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-6 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:calc( 1250px + 30px );margin-left: calc(-30px \/ 2 );margin-right: calc(-30px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-6 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:15px;--awb-margin-bottom-large:20px;--awb-spacing-left-large:15px;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:15px;--awb-spacing-left-medium:15px;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:15px;--awb-spacing-left-small:15px;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-4\"><p style=\"font-size: 19px;\" data-fusion-font=\"true\"><b>Conclus\u00f5es<\/b><\/p>\n<p>O VISUM PALM \u00e9  <b>capaz de detetar adultera\u00e7\u00f5es em cacau em p\u00f3 com farinha atrav\u00e9s de sacos de pl\u00e1stico com uma precis\u00e3o de 3,5 % em menos de 5 segundos<\/b>. Al\u00e9m disso, a tecnologia NIR permite estabelecer uma \u201cimpress\u00e3o digital qu\u00edmica\u201d do produto puro, o que permitir\u00e1 detetar futuras adultera\u00e7\u00f5es.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":52355,"parent":0,"template":"","meta":{"_acf_changed":false},"industria-en-aplicacion":[7530],"producto-en-aplicacion":[7525],"class_list":["post-52354","aplicaciones","type-aplicaciones","status-publish","has-post-thumbnail","hentry","industria-en-aplicacion-agroalimentar","producto-en-aplicacion-visao-artificial-e-industrial"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Luta contra a fraude: adultera\u00e7\u00f5es no cacau - Grupo \u00c1lava<\/title>\n<meta name=\"description\" content=\"O cacau em p\u00f3 foi inclu\u00eddo como um dos 25 ingredientes mais adulterados, de acordo com uma base de dados de fraudes alimentares. 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