Sensory quality and mineral and glycoalkaloid concentrations in organically and conventionally grown redskin potatoes (Solanum tuberosum)

Triangle tests were used to determine if panellists could distinguish (by tasting) cooked wedges of potatoes grown organically, either with (+) or without (-) compost, and conventionally. Mineral and glycoalkaloid analyses of tuber skin and flesh were also completed. When the skin remained on the po...

Full description

Saved in:
Bibliographic Details
Published in:Journal of the science of food and agriculture 2005-04, Vol.85 (5), p.720-726
Main Authors: Wszelaki, A.L, Delwiche, J.F, Walker, S.D, Liggett, R.E, Scheerens, J.C, Kleinhenz, M.D
Format: Article
Language:English
Subjects:
Agricultural production
Biological and medical sciences
compost
conventional production
cooking quality
crop quality
Crop science
Food industries
food quality
Fruit and vegetable industries
Fundamental and applied biological sciences. Psychology
glycoalkaloids
mineral concentrations
mineral content
nutrient content
organic foods
organic production
potato
Potatoes
redskin potatoes
sensory evaluation
sensory properties
solanidine
Solanum tuberosum
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:Triangle tests were used to determine if panellists could distinguish (by tasting) cooked wedges of potatoes grown organically, either with (+) or without (-) compost, and conventionally. Mineral and glycoalkaloid analyses of tuber skin and flesh were also completed. When the skin remained on the potatoes, panellists detected differences between conventional potatoes and organic potatoes, regardless of soil treatment. However, they did not distinguish between organic treatments (+/- compost) when samples contained skin, or between any treatments if wedges were peeled prior to preparation and presentation. Glycoalkaloid levels tended to be higher in organic potatoes. In tuber skin and flesh, potassium, magnesium, phosphorus, sulfur and copper concentrations were also significantly higher in the organic treatments, while iron and manganese concentrations were higher in the skin of conventionally grown potatoes.
ISSN:0022-5142
1097-0010
DOI:10.1002/jsfa.2051