Introductory study on application of digital image analysis and discriminant function analysis in assessment of malting quality of spring barley cultivars
Dariusz R. Mańkowski
d.mankowski@ihar.edu.plPracownia Ekonomiki Nasiennictwa i Hodowli Roślin, Zakład Nasiennictwa i Nasionoznawstwa, Instytut Hodowli i Aklimatyzacji Roślin — Radzików (Poland)
https://orcid.org/0000-0002-7499-8016
Witold Kozirok
Katedra Przetwórstwa i Chemii Surowców Roślinnych, Wydział Nauki o Żywności, Uniwersytet Warmińsko-Mazurski — Olsztyn (Poland)
Monika Janaszek
Zakład Mechaniki i Techniki Cieplnej, Katedra Podstaw Inżynierii, Wydział Inżynierii Produkcji, Szkoła Główna Gospodarstwa Wiejskiego — Warszawa (Poland)
https://orcid.org/0000-0003-0855-9098
Abstract
Barley grain is the main source for production of malt. Varietal purity is essential for production of good quality malt. Each malting barley cultivar has a description of characters prepared on the basis of micromalting tests conducted according to the criteria of the European Brewing Convention (EBC). Before sending barley grain of a certain cultivar to a brewery, both the efficiency and quality of malt are to be evaluated. Quality of a cultivar is assessed according to the Q index where Q value below 5 specifies feed cultivars and Q value near 9 specifies very good malting cultivars. Hitherto malting barley quality assessment has been conducted using laboratory methods. Digital image analysis might facilitate the barley quality assessment procedure and reduce its costs. Discriminant analysis and digital image analysis were used in classification of grain of 11 spring barley cultivars to the quality groups. Discriminant analysis was based on morphological features and color features characteristic for RGB color space. Discriminant analysis was conducted using SAS 9.1. Successive steps of the analysis and procedures syntax in the 4GL programming language have been presented.
Keywords:
digital image analysis, discriminant function analysis, malting quality, RGB model, SAS, spring barleyReferences
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Authors
Dariusz R. Mańkowskid.mankowski@ihar.edu.pl
Pracownia Ekonomiki Nasiennictwa i Hodowli Roślin, Zakład Nasiennictwa i Nasionoznawstwa, Instytut Hodowli i Aklimatyzacji Roślin — Radzików Poland
https://orcid.org/0000-0002-7499-8016
Authors
Witold KozirokKatedra Przetwórstwa i Chemii Surowców Roślinnych, Wydział Nauki o Żywności, Uniwersytet Warmińsko-Mazurski — Olsztyn Poland
Authors
Monika JanaszekZakład Mechaniki i Techniki Cieplnej, Katedra Podstaw Inżynierii, Wydział Inżynierii Produkcji, Szkoła Główna Gospodarstwa Wiejskiego — Warszawa Poland
https://orcid.org/0000-0003-0855-9098
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