Subcutaneous tissue discoloration in ware potatoes. 2. Impact measured by an instrumented sphere

Potatoes are exposed to mechanical forces which can lead to subcutaneous tissue discoloration resulting in losses. We investigated the number and intensity of impacts in different phases of representative Dutch ware potato handling chains using an instrumented sphere (IS). Other questions we asked w...

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Bibliographic Details
Published in:Potato research 2000-01, Vol.43 (3), p.225-238
Main Authors: Molema, G.J, Struik, P.C, Verwijs, B.R, Bouman, A, Klooster, J.J
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Crop and Weed Ecology
DAMAGE
DANOS
DECOLORACION
DECOLORATION
DEGAT
DISCOLORATION
EQUIPO
Food industries
Food science
Fruit and vegetable industries
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
HANDLING MACHINERY
Harvesting. Postharvest. Storage
Leerstoelgroep Gewas- en onkruidecologie
MAQUINARIA DE MANUTENCION
MATERIEL
MATERIEL DE MANUTENTION
NETHERLANDS
PAISES BAJOS
PAPA
PAYS BAS
PE&RC
POMME DE TERRE
POTATOES
SOLANUM TUBEROSUM
Tissues
Vegetative propagation. Sowing and planting. Harvesting
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Summary:Potatoes are exposed to mechanical forces which can lead to subcutaneous tissue discoloration resulting in losses. We investigated the number and intensity of impacts in different phases of representative Dutch ware potato handling chains using an instrumented sphere (IS). Other questions we asked were, to which drop height onto a defined surface do measured impacts correspond, and what is the relation between the number of impacts and damage? Close relationships between peak acceleration and velocity change for different drop heights were found for various cushioning materials, thus allowing interpretation of impact measurements in terms of drops. The IS recorded c. 340 impacts exceeding 30g. The contribution to the total number of impacts was 11% for Harvest, 0% for Storage, 10% for Transport and 79% for Packaging. The number and intensity of impacts correlated well with the amount of subcutaneous tissue discoloration. It is concluded that the produce-friendliness of the handling chains can be improved.[PUBLICATION ABSTRACT]
ISSN:0014-3065
1871-4528
DOI:10.1007/BF02358082