Journal of Food, Agriculture and Environment

Vol 6, Issue 3&4,2008
Online ISSN: 1459-0263
Print ISSN: 1459-0255

A proposal of quality classification of food products based on K-means analysis


Katarzyna Siejka 1, Andrzej Tukiendorf 2

Recieved Date: 2008-05-12, Accepted Date: 2008-09-02


A quality classification of food products based on K-means analysis has been performed. A carrot quality production in terms of heavy metals’ contamination was analyzed in the study. Two clusters have been established. The first one roughly comprises of 21 samples with the lower Cd and Pb concentrations in carrots (below the average levels), whereas the second cluster represents the remaining 17 samples with the elevated heavy metals concentrations (i.e. above the averages). Following the Student-t test estimates for the distinguished clusters we observed significant differences between the clusters for both the analyzed elements. Moreover, concentrations of Cd were almost twice higher in the second cluster, whereas over three times higher for Pb concentrations in comparison to the first one. The usefulness and simplicity of the applied statistical methodology to classify food products have been shown. An additional conclusion has been reached that carrot quality does not depend on the type of areas which the carrot samples originated from, i.e. either elevated Cd or Pb concentrations of carrots were observed in urban or rural areas.


Quality, classification, food, heavy metals, K-means

Journal: Journal of Food, Agriculture and Environment
Year: 2008
Volume: 6
Issue: 3&4
Category: Food and Health
Pages: 23-25

Full text for Subscribers

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

Purchase this Article:   20 Purchase PDF Order Reprints for 15

Share this article :