New Zealand Journal of Crop and Horticultural Science abstracts
Short communication:
Effect of fruit maturation on sugar and organic acid composition in two
blueberries (Vaccinium arctostaphylos and V. myrtillus)
native to Turkey
F. A. AYAZ
A. KADIOGLU
Department of Biology
Karadeniz Technical University
61080 Trabzon, Turkey
email (Ayaz): faa@ktu.edu.tr
E. BERTOFT
Department of Biochemistry and Pharmacy
Åbo Akademi University
BioCity, Tykistökatu 6
20520 Turku, Finland
C. ACAR
Faculty of Forestry
Department of Landscape and Architecture
Karadeniz Technical University
61080 Trabzon, Turkey
I. TURNA
Department of Forest Engineering
Karadeniz Technical University
61080 Trabzon, Turkey
Abstract Some organic acids and sugars in two blueberry
species from north-east Anatolia, Turkey, were studied. The fruits of the
blueberry species (
Vaccinium arctostaphylos L. and
V. myrtillus
L.) were collected at three stages of maturity (immature, mid ripe, and ripe),
and the organic acids and sugars were studied by gas liquid chromatography
(GLC) and verified by gas liquid chromatography-mass spectrometry (GLC-MS). The
soluble sugars fructose, glucose, and sucrose, and the sugar alcohol inositol
were identified and quantified. Fructose and glucose represented the major
sugars in the fruits. Quinic and citric acids were found to be the major
organic acids in both blueberry species. The levels of these acids were
significantly different (
P = 0.05) at all three stages of fruit
maturation. The level of malic acid increased gradually in both species,
whereas the levels of citric and quinic acids decreased rapidly. The total acid
level in the fruits of the two species was also significantly different. The
results of this study can be used to compare the two species with other
Vaccinium species.
Keywords blueberry; Vaccinium; organic acid;
sugar; fruit maturity
H00031
Received 18 August 2000; accepted 21 February 2001
New Zealand Journal of Crop and Horticultural Science, 2001, Vol. 29:
137-141
0014-0671/01/2902-0137 $7.00 (c) The Royal Society of New Zealand 2001
PDF file of entire paper: medium quality (418K); (scanned from paper original: notes about this process)
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