Textural and microstructural changes associated with post-harvest hardening of trifoliate yam ( Dioscorea dumetorum) pax tubers

The textural and microstructural changes associated with the post-harvest hardening phenomenon of Dioscorea dumetorum tubers were studied to determine how texture relates to microstructure during the hardening process. A 2×2×4 factorial experiment with sample treatment, storage conditions and storag...

Full description

Saved in:
Bibliographic Details
Published in:Food chemistry 2002, Vol.77 (3), p.279-284
Main Authors: Afoakwa, Emmanuel Ohene, Sefa-Dedeh, Samuel
Format: Article
Language:English
Subjects:
Biological and medical sciences
Dioscorea dumetorum
Food industries
Fruit and vegetable industries
Fundamental and applied biological sciences. Psychology
Microstructural changes
Post-harvest hardening
Textural changes
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The textural and microstructural changes associated with the post-harvest hardening phenomenon of Dioscorea dumetorum tubers were studied to determine how texture relates to microstructure during the hardening process. A 2×2×4 factorial experiment with sample treatment, storage conditions and storage time as variables was performed. The tubers were harvested, matured and stored under prevailing tropical ambient conditions (28 °C) and cold room conditions (4 °C) for the study. All the samples were evaluated for their hardness (peak force) and adhesiveness (curve areas). Starch microscopy was done on the freshly harvested tubers, hardened tubers and tubers stored under low temperature conditions (4 °C) during the study. TA.XT2 analyses on the textural properties revealed consistent increases in the hardness and adhesiveness levels, measured during the hardening process of the tubers. Hardness levels increased markedly to significant levels ( P
ISSN:0308-8146
1873-7072
DOI:10.1016/S0308-8146(01)00343-0