Het volgen van de kwaliteit van sperziebonen in de keten: GreenCHAINge WP1 - Sperziebonen

The general objective in GreenCHAINge workpackage 1 is to develop a more generic quality control system for the AH logistic chain, in order to achieve a more consistent quality. One of the subprojects is the research on green beans. The aim of this research is to gain a better understanding of the quality of the chain and, if possible, to identify causes of quality loss. To gain more insight into the quality of green beans in the chain from the distributor Bakker Barendrecht to the processing company Vezet, a monitoring experiment has been carried out. At Vezet samples were taken from a large number of batches of green beans and assessed for different types of damage. These samples were linked to the quality data of Bakker Barendrecht, based on independent data analysis performed by Wageningen Food & Biobased Research. The quality control took place at Bakker Barendrecht and Vezet. Bakker Barendrecht scored visually in five classes, while at Vezet an exact percentage of the weight of each damage was determined. In order to perform the data analysis of these two datasets with the same units, the scores of Bakker Barendrecht were converted to percentages. The main results of this research and the resulting advices are as follows: • The data analysis shows that the results of the quality assessment at Bakker Barendrecht and Vezet do not logically coincide. There can be several explanations: - There may be differences in quality control between Bakker Barendrecht and Vezet. This can be a different sampling and/or measurement method. The advice is to align quality control between the two companies: on the same samples, by the same persons, at the same place and time. • Another explanation could that the damage has increased in the chain between the two companies. However, the current analysis indicates that the length of time from Bakker Barendrecht until the assessment at Vezet is not related to the level of the damage measured. This document is the result of a study as part of GreenCHAINge workpackage 1. This study is executed from June 2017 till January 2018 by researchers of Wageningen Food & Biobased Research (WFBR), who performed an objective and independent study for Bakker Barendrecht and Vezet, who partly financed this project in-cash and in-kind. This report is confidential and intended only for Bakker Barendrecht, Vezet and WFBR.