Internal quality characterization of fresh tomato fruits
2004
A:PS
Details
Title
Internal quality characterization of fresh tomato fruits
Author
Fernandez Ruiz, V.
Sanchez Mata, M.C.
Camara, M.
Torija, M.E.
Chaya, C.
Galiana Balaguer, L.
Rosello, S.
Nuez, F.
Sanchez Mata, M.C.
Camara, M.
Torija, M.E.
Chaya, C.
Galiana Balaguer, L.
Rosello, S.
Nuez, F.
Publication Date
2004
Call Number
A:PS
Summary
The characterization of Lycopersicon germplasm for internal quality properties is essential to choose suitable donor parents for breeding programmes. When donor parents belong to species of subgenus Eulycopersicon, which are phyletically closer to L. esculentum, the recovery of agronomic traits is faster. Using these materials, a careful selection of donor parents which could improve several internal quality properties allows the acceleration of these breeding programmes. In this work, we combine general determinations, such as soluble solid content (SSC), titratable acidity, pH, total sugars, pectic substances and total protein contents with precise high-performance liquid chromatography, quantitations of individual compounds (vitamin C [ascorbic acid]; citric, malic, fumaric and oxalic acids; glucose, fructose and sucrose), to obtain a more complete characterization of flavour intensity and nutritional properties in Lycopersicon germplasm. The multidimensional analysis of all these variables allows the classification of several accessions of L. esculentum and L. pimpinellifolium, according to their usefulness for internal quality breeding programmes of fresh tomato. The classification obtained and the comparison of accession quality characteristics with selected controls show that five of the L. pimpinellifolium accessions tested can be of great use in breeding for internal quality characteristics. A flavour intensity approx.625% higher than commercial hybrids was obtained in the best accession tested. Some of these L. pimpinellifolium accessions showed better flavour intensity properties than a high SSC L. cheesmanii control, traditionally used in internal quality breeding. In addition, three of the L. esculentum accessions tested with medium-to-high flavour intensity value could prove useful in advanced stages of breeding programmes.
Journal Citation
v.39(2):339-345, HORTSCIENCE
Contact Information
harvest@worldveg.org
Record Appears in
Research > Published Articles