| Title: | Key volatile compounds of 'Fuji Kiku' apples as affected by the storage conditions and shelf life: Correlation between volatile emission by intact fruit and juice extracted from the fruit |
| Author(s): | Donadel JZ; Thewes FR; Anese RO; Schultz EE; Berghetti MRP; Ludwig V; Klein B; Cichoski AJ; Barin JS; Both V; Brackmann A; Wagner R; |
| Address: | "Department of Food Technology and Science, Federal University of Santa Maria, Roraima Avenue 1000, Camobi, Santa Maria 97105-900, RS, Brazil. Department of Plant Science, Postharvest Research Center, Federal University of Santa Maria, Roraima Avenue 1000, Camobi, Santa Maria 97105-900, RS, Brazil. Federal Institute of Santa Catarina (IFSC), Campus Urupema, Senadinho Road, Center, Urupema, Santa Catarina, SC 88625-000, Brazil. Department of Food Technology and Science, Federal University of Santa Maria, Roraima Avenue 1000, Camobi, Santa Maria 97105-900, RS, Brazil. Electronic address: rogerwag@gmail.com" |
| DOI: | 10.1016/j.foodres.2019.108625 |
| ISSN/ISBN: | 1873-7145 (Electronic) 0963-9969 (Linking) |
| Abstract: | "For the 'Fuji Kiku' apple, this study aimed: (i) to evaluate the volatile compounds (VCs) from headspace storage chambers with static controlled atmosphere (CA) and with dynamic controlled atmosphere based on chlorophyll fluorescence (DCA-CF) and based on respiratory quotient (DCA-RQ1.5) at ninth month of storage, during 1 and 7 days of shelf life of intact fruit, and in apple juice headspace and (ii) to determine the correlation of the VCs in the headspace from storage chambers and fruit during shelf life with the headspace VCs from apple juice as markers of quality. The VCs were isolated by solid phase microextraction (HS-SPME) and analyzed by gas chromatography. In the storage chambers, ethyl linear chain esters were detected mainly in DCA-RQ1.5, while acetaldehyde and (E)-2-hexenal were more abundant in DCA-CF. At seven days of shelf life, fermentative metabolic compounds had reduced emissions given the opening time of the chamber, while there were higher emissions of branched chain esters, especially ethyl 2-methyl butanoate in DCA-RQ1.5. The correlation was high and positive between the VCs present in the juice and those emitted by the intact fruit during seven days of shelf life, demonstrating that the concentration of VCs in juice can be used to estimate the emissions from whole fruit. DCA-RQ1.5 storage promoted the synthesis of VCs typical of the 'Fuji' apple aroma after a prolonged storage period, even under extremely low partial pressure of oxygen (average 0.15?ª+kPa), contributing to better quality control of characteristic fruit odor and aroma" |
| Keywords: | Acetaldehyde/analysis Brazil Esters/analysis Ethylenes/biosynthesis Food Storage/*methods Fruit/*chemistry/metabolism Fruit and Vegetable Juices/analysis Malus/*chemistry Odorants/analysis Solid Phase Microextraction Volatile Organic Compounds/*analysis A; |
| Notes: | "MedlineDonadel, Jossie Zamperetti Thewes, Fabio Rodrigo Anese, Rogerio de Oliveira Schultz, Erani Eliseu Berghetti, Magno Roberto Pasquetti Ludwig, Vagner Klein, Bruna Cichoski, Alexandre Jose Barin, Juliano Smanioto Both, Vanderlei Brackmann, Auri Wagner, Roger eng Research Support, Non-U.S. Gov't Canada 2019/09/27 Food Res Int. 2019 Nov; 125:108625. doi: 10.1016/j.foodres.2019.108625. Epub 2019 Aug 17" |
