期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 56, 期 11, 页码 4128-4133出版社
AMER CHEMICAL SOC
DOI: 10.1021/jf073489p
关键词
raspberry; volatile; aroma; SBSE; volatile quantification
Twenty-nine volatile compounds in 'Chilliwack', 'Tulameen', 'Willamette', 'Yellow Meeker', and 'Meeker' raspberries were quantified using stir bar sorptive extraction (SBSE) paired with gas chromatography-mass spectrometry (GC-MS). Good correlation coefficients were obtained with most aroma-active compounds in raspberry, with quantification limits of 1 mu g/kg. However, poor recoveries were observed for raspberry ketone and zingerone. Quantitative data showed that volatile concentrations varied for different cultivars. Large variations for alpha-ionone, -ionone, geraniol, linalool, and (Z)-3-hexenol were observed in different raspberry cultivars. In addition, the volatile compositions in 'Meeker' raspberry grown at different locations also varied. The chiral isomeric ratios of raspberry ketone, alpha-ionone, beta-pinene, linalool, terpinen-4-ol, delta-octalactone, delta-decalactone, and 6-methyl-5-hepten-2-ol were studied using a CyclosilB column. alpha-lonone, alpha-pinene, delta-octalactone, and delta-decalactone had strong chiral isomeric preference, with more than 96% for one isomeric form. Much weaker chiral isomeric preference was observed for terpinen-4-ol, while linalool was almost a racemic mixture. Both growing locations and cultivars affect the isomeric ratio of linalool with a range of 37-51% for (R)-linalool.
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