| Beide Seiten der vorigen RevisionVorhergehende Überarbeitung | |
| malus_domestica_borkh [2025/05/02 12:57] – andreas | malus_domestica_borkh [2025/09/05 12:33] (aktuell) – andreas |
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| The release of odorants by the cultivars was analysed by gas chromatography-olfactometry of headspace samples. Ethyl butanoate, ethyl 2-methylbutanoate showed the highest odour activities in the air above Elstar apples and ethyl butanoate, acetaldehyde, 2-methylbutanol and ethyl methylpropanoate in that of Cox Orange. Preparation of a homogenate changed the headspace composition of potent odorants. Hexyl acetate became the key odorant of Elstar and aldehydes hexanal and (Z)-3-hexenal those of Cox Orange. Quantification and calculation of odour activity values indicated (E)-β-damascenone, (Z)-3-hexenal, linalool, butyl acetate, 2-methylbutyl acetate, and hexyl acetate as the character impact odorants of the fruit flesh of the two cultivars. Elstar contained more (E)-β-damascenone, (Z)-2-nonenal, butyl acetate and hexyl acetate and Cox Orange more (Z)-3-hexenal than the other cultivar. The concentrations of 2-methylbutyl acetate were similar. \\ | The release of odorants by the cultivars was analysed by gas chromatography-olfactometry of headspace samples. Ethyl butanoate, ethyl 2-methylbutanoate showed the highest odour activities in the air above Elstar apples and ethyl butanoate, acetaldehyde, 2-methylbutanol and ethyl methylpropanoate in that of Cox Orange. Preparation of a homogenate changed the headspace composition of potent odorants. Hexyl acetate became the key odorant of Elstar and aldehydes hexanal and (Z)-3-hexenal those of Cox Orange. Quantification and calculation of odour activity values indicated (E)-β-damascenone, (Z)-3-hexenal, linalool, butyl acetate, 2-methylbutyl acetate, and hexyl acetate as the character impact odorants of the fruit flesh of the two cultivars. Elstar contained more (E)-β-damascenone, (Z)-2-nonenal, butyl acetate and hexyl acetate and Cox Orange more (Z)-3-hexenal than the other cultivar. The concentrations of 2-methylbutyl acetate were similar. \\ |
| [Character impact odorants of the apple cultivars Elstar and Cox Orange., Fuhrmann, E., Grosch, W., Food/Nahrung, Vol.46(3), 2002, 187-193] | [Character impact odorants of the apple cultivars Elstar and Cox Orange., Fuhrmann, E., Grosch, W., Food/Nahrung, Vol.46(3), 2002, 187-193] |
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| | "The aroma volatiles of the apricot distillate were characterized by a high concentration of alcohols and by a specific terpene profile that included linalool, ocimenol, α-terpineol, nerol, geraniol, cis and trans linalol oxide. γ-Decalactone, γ-dodecalactone, and ethyl cinnamate were also characteristic of the apricot distillate. The apple distillate exhibited a high concentration of esters and was characterized by the presence of farnesol, cis and trans α-farnesene, ethyl hexanoate, ethyl 9-decenoate, ethyl 3-methylbutanoate, guaiacol and (Z) 3-hexen-1-ol. In the case of apricot distillate, olfactometric analysis showed that volatile compounds, such as β-damascenone, ethyl 2-methylbutanoate, linalool, methyl anthranilate, ethyl cinnamate, γ-decalactone and γ-dodecalactone, which probably resulted from the original fruit, had a significant odor activity, while 2-phenylethanol was the main odor impact compound. The aroma profile of the apple distillate was mainly characterized by 2-phenylethanol, β-damascenone and ethyl 3- and ethyl 2-methylbutanoate." \\ |
| | [Genovese, Alessandro, et al. "Comparison of the aroma compounds in apricot (Prunus armeniaca, L. cv. Pellecchiella) and apple (Malus pumila, L. cv. Annurca) raw distillates." Italian Journal of Food Science/Rivista Italiana di Scienza degli Alimenti 16.2 (2004)] |
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| "Potent apple juice odorants, including 1-butanol, β-damascenone, dimethyl sulfide, ethyl butanoate, ethyl 2-methylbutanoate, hexanal, 1-hexanol, (E)-2-hexenal and 1-octen-3-one were quantified using stable isotope dilution assays in juice and in the aroma fractions thereof obtained by an industrial juice concentration process. Results showed a distinct loss of the major juice aroma component β-damascenone during juice concentration. High losses were also found for dimethyl sulfide and 1-octen-3-one." \\ | "Potent apple juice odorants, including 1-butanol, β-damascenone, dimethyl sulfide, ethyl butanoate, ethyl 2-methylbutanoate, hexanal, 1-hexanol, (E)-2-hexenal and 1-octen-3-one were quantified using stable isotope dilution assays in juice and in the aroma fractions thereof obtained by an industrial juice concentration process. Results showed a distinct loss of the major juice aroma component β-damascenone during juice concentration. High losses were also found for dimethyl sulfide and 1-octen-3-one." \\ |
