ISHS Acta Horticulturae 439: III International Strawberry Symposium
AROMA COMPONENTS OF AMPHIPLOID STRAWBERRIES DERIVED FROM INTERSPECIFIC HYBRIDS OF FRAGARIA X ANANASSA AND DIPLOID WILD SPECIES |
| Authors: | T. Mochizuki, Y. Noguchi, K. Sone, M. Morishita |
| Keywords: | Fragaria vesca, Fragaria nilgerrensis, head-space gas, ether extract, GC-MS, principal component analysis |
| Abstract:
The aroma components of amphiploids of F. vesca x F. x ananassa and F. x ananassa x F. nilgerrensis improved from interspecific hybrids by in vitro chromosome doubling method were analyzed by GC-MS. Major aroma compounds of F. x ananassa were methyl butylate, ethyl butylate, methyl butyric acid, acetic acid and 2,5-dimethyl-4-hydroxy (2H) furanone. F. vesca contained a high amount of ethyl acetate, but amounts of methyl butylate, ethyl butylate, organic acids and furanones were low. F. nilgerrensis contained a high level of ethyl acetate and furanone, but amounts of methyl butylate, ethyl butylate and organic acids were low. Fragrance and aroma components of amphiploids were intermediate in F. vesca x F. x ananassa, while they resemble F. nilgerrensis in the F. x ananassa x F. nilgerrensis hybrid. About fifty major peaks were isolated from each sample analyzed by GC-MS and classified by principal component analysis method. Three parental species and their amphiploids were discriminated in the scatter diagram of principal components. | |
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