{"id":636,"date":"2021-04-08T19:51:47","date_gmt":"2021-04-08T11:51:47","guid":{"rendered":"http:\/\/abstract.i-idea.org\/?p=636"},"modified":"2021-04-18T04:10:59","modified_gmt":"2021-04-17T20:10:59","slug":"varietal-discrimination-of-pineapple-ananas-comosus-l-by-combining-chemometrics-sensory-analysis-and-chromatographic-fingerprint-of-volatile-and-non-volatile-compositions","status":"publish","type":"post","link":"http:\/\/abstract.i-idea.org\/?p=636","title":{"rendered":"VARIETAL DISCRIMINATION OF PINEAPPLE (Ananas comosus L.) BY COMBINING CHEMOMETRICS, SENSORY ANALYSIS AND CHROMATOGRAPHIC FINGERPRINT OF VOLATILE AND NON-VOLATILE COMPOSITIONS"},"content":{"rendered":"\n<p><em><strong>Rozita Osman, Syaidatul Faraha Zainuddin and Siti Raihan Zakaria<\/strong><\/em><\/p>\n\n\n\n<p><strong><em>Keywords<\/em>: <\/strong>pineapples, chromatographic fingerprints, volatile, nonvolatile, chemometrics<\/p>\n\n\n\n<p><strong><em>Abstract: <\/em><\/strong>Pineapple (<em>Ananas comosus <\/em>L.) is one of the commercially important fruit crops in&nbsp; Malaysia and is listed as one of the special projects in the National Key Economic Agenda (NKEA)&nbsp; under the agriculture sector. Classification and quality control are based on morphological traits&nbsp; using manual inspection done by the agricultural officer. This approach is often biased and&nbsp; inconsistent as human perception and judgment are changing over time. The aroma of pineapple&nbsp; is made up of a wide range of volatile and non-volatile compounds depending on the varieties and&nbsp; maturity stages of the fruits and thus, can be valuable factors in discriminating the fruits. The&nbsp; chromatographic fingerprints of volatile and nonvolatile compounds from pineapple pulp were&nbsp; obtained by using Gas Chromatography-Mass Spectrometry Detector (GC-MSD) and 2- Dimensional-Liquid Chromatography \u2013 Diode Array Detector (2D-LC-DAD), respectively.&nbsp; Sensory profiles were conducted using quantitative descriptive analysis (QDA) showed the fruity&nbsp; aroma of pineapple was insignificant to differentiate between the pineapple varieties. Dealing with&nbsp; the chemical compositions (volatiles and non-volatiles) for the quality control of fruits involves a&nbsp; large set of data that requires effective statistical tools such as chemometric analysis such as cluster&nbsp; analysis (CA) and principal component analysis (PCA). This study showed that using sensory&nbsp; analysis alone could be biased and unreliable in discriminating pineapple varieties. The use of&nbsp; partial least square-discriminant analysis (PLS-DA) revealed the potential marker compounds for&nbsp; each pineapple variety permitting the unambiguous distinction between Morris, Josephine, MD2,&nbsp; and Sarawak pineapple. A combination of sensory attributes, volatile and non-volatile compounds&nbsp; provided useful information in discriminating pineapple according to their varieties.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft size-large\"><a href=\"https:\/\/drive.google.com\/file\/d\/1ahHL-xESZ9B1dx-v5qLrm7G2UdR07hSU\/view?usp=sharing\"><img loading=\"lazy\" width=\"150\" height=\"40\" src=\"http:\/\/abstract.i-idea.org\/wp-content\/uploads\/2018\/04\/downloadpdfbutton.png\" alt=\"\" class=\"wp-image-41\"\/><\/a><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Rozita Osman, Syaidatul Faraha Zainuddin and Siti Raihan Zakaria Keywords: pineapples, chromatographic fingerprints, volatile, nonvolatile, chemometrics Abstract: Pineapple (Ananas comosus&hellip;<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[10,14],"tags":[],"_links":{"self":[{"href":"http:\/\/abstract.i-idea.org\/index.php?rest_route=\/wp\/v2\/posts\/636"}],"collection":[{"href":"http:\/\/abstract.i-idea.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/abstract.i-idea.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/abstract.i-idea.org\/index.php?rest_route=\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"http:\/\/abstract.i-idea.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=636"}],"version-history":[{"count":2,"href":"http:\/\/abstract.i-idea.org\/index.php?rest_route=\/wp\/v2\/posts\/636\/revisions"}],"predecessor-version":[{"id":702,"href":"http:\/\/abstract.i-idea.org\/index.php?rest_route=\/wp\/v2\/posts\/636\/revisions\/702"}],"wp:attachment":[{"href":"http:\/\/abstract.i-idea.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/abstract.i-idea.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=636"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/abstract.i-idea.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}