- Aprea, E., Charles, M., Endrizzi, I., Laura Corollaro, M., Betta, E., Biasioli, F. and Gasperi, F., 2017. Sweet taste in apple: The role of sorbitol, individual sugars, organic acids and volatile compounds. Scientific Reports, 7(1), 44950. https://doi.org/10.1038/srep44950
- Aprea, E., Corollaro, M. L., Betta, E., Endrizzi, I., Demattè, M. L., Biasioli, F. and Gasperi, F., 2012. Sensory and instrumental profiling of 18 apple cultivars to investigate the relation between perceived quality and odour and flavour. Food Research International, 49(2), 677-686. https://doi.org/10.1016/j.foodres.2012.09.023
- Buchhaupt, M., Guder, J.C., Etschmann, M.M.W. and Schrader, J., 2012. Synthesis of green note aroma compounds by biotransformation of fatty acids using yeast cells coexpressing lipoxygenase and hydroperoxide lyase. Applied Microbiology and Biotechnology, 93, 159-168. https://doi.org/10.1007/s00253-011-3482-1
- Chitarrini, G., Dordevic, N., Guerra, W., Robatscher, P. and Lozano, L., 2020. Aroma investigation of new and standard apple varieties grown at two altitudes using gas chromatography-mass spectrometry combined with sensory analysis. Molecules, 25(13), 3007. https://doi.org/10.3390/molecules25133007
- Cirillo, A., Spadafora, N.D., James-Knight, L., Ludlow, R.A., Müller, C.T., De Luca, L., Romano, R., Rogers, H.J. and Di Vaio, C., 2024. Comparison of Volatile Organic Compounds, Quality, and Nutritional Parameters from Local Italian and International Apple Cultivars. Horticulturae, 10(8), 863. https://doi.org/10.3390/horticulturae10080863
- Clark, K.D., Emaus, M.N., Varona, M., Bowers, A.N. and Anderson, J.L., 2018. Ionic liquids: solvents and sorbents in sample preparation. Journal of Separation Science, 41(1), 209-235. https://doi.org/10.1002/jssc.201700864
- Esmaeili, A., Abednazari, S., Abdollahzade, Y., Abdollahzadeh, N., Mahjoubian, R. and Tabatabaei Anaraki, M., 2013. Peel Volatile Compounds of Apple (Malus domestica) and Grapefruit (Citrus Paradisi). Journal of Essential Oil Bearing Plants, 15, 794-799. https://doi.org/10.1080/0972060X.2012.10644122
- Espino-Díaz, M., Sepúlveda, D.R., González-Aguilar, G. and Olivas, G.I., 2016. Biochemistry of apple aroma: A review. Food Technology and Biotechnology, 54(4), 375-397. https://doi.org/10.17113/ftb.54.04.16.4248
- Ferreira, L., Perestrelo, R., Caldeira, M. and Câmara, J.S., 2009. Characterization of volatile substances in apples from rosaceae family by headspace solid‐phase microextraction followed by GC‐qMS. Journal of Separation Science, 32(11), 1875-1888. https://doi.org/10.1002/jssc.200900024
- Flath, R.A., Black, D.R., Guadagni, D.G., McFadden, W.H. and Schultz, T.H., 1967. Identification and organoleptic evaluation of compounds in Delicious apple essence. Journal of Agricultural and Food Chemistry, 15(1), 29-35. https://doi.org/10.1021/jf60149a032
- Green, S., Friel, E.N., Matich, A., Beuning, L.L., Cooney, J.M., Rowan, D.D. and MacRae, E., 2007. Unusual features of a recombinant apple α-farnesene synthase. Phytochemistry, 68(2), 176-188. https://doi.org/10.1016/j.phytochem.2006.10.017
- Kader, A.A., 2008. Flavor quality of fruits and vegetables. Journal of the Science of Food and Agriculture, 88(11), 1863-1868. https://doi.org/10.1002/jsfa.3293
- Lee, Y.Y., Jeong, M.C. and Jang, H.W., 2017. Determination of volatile compounds by headspace-solid phase microextraction-gas chromatography/mass spectrometry: Quality evaluation of Fuji apple. Analytical Science and Technology, 30(2), 68-74. https://doi.org/10.5806/AST.2017.30.2.68
- Li, R., Shi, J., Li, C., Ren, X., Tao, Y., Ma, F., Liu, Z. and Liu, C., 2023. Characterization of the key odorant compounds in ‘Qinguan’apples (Malus× domestica). LWT-Food Science and Technology, 184, 115052. https://doi.org/10.1016/j.lwt.2023.115052
- Mehinagic, E., Royer, G., Symoneaux, R., Jourjon, F. and Prost, C., 2006. Characterization of odor-active volatiles in apples: influence of cultivars and maturity stage. Journal of Agricultural and Food Chemistry, 54(7), 2678-2687. https://doi.org/10.1021/jf052288n
- Niu, Y., Wang, R., Xiao, Z., Zhu, J., Sun, X. and Wang, P., 2019. Characterization of ester odorants of apple juice by gas chromatography-olfactometry, quantitative measurements, odour threshold, aroma intensity and electronic nose. Food Research International, 120, 92-101. https://doi.org/10.1016/j.foodres.2019.01.064
- Piryaei, M., 2022. Deep Eutectic Solvents as an Efficient Solvent System Determination the Volatile Compounds with Microextraction. Iranian Journal of Chemistry and Chemical Engineering, 41(1), 135-142. https://doi.org/10.30492/ijcce.2020.123956.4063
- Plastiras, O.E., Andreasidou, E. and Samanidou, V., 2020. Microextraction Techniques with Deep Eutectic Solvents. Molecules, 25, 6026. https://doi.org/10.3390/molecules25246026
- Power, F.B. and Chesnut, V.K., 1922. The odorous constituents of apples. II. Evidence of the presence of geraniol. Journal of the American Chemical Society, 44(12), 2938-2942. https://doi.org/https://doi.org/10.1021/ja01433a033
- Shimizu, T., Hattori, Y., Ogami, S., Imayoshi, Y., Moriya, S., Okada, K., Sawamura, Y. and Abe, K., 2024. Identification of aroma compounds responsible for apple flavor via palatability score prediction in tree-based regression models. LWT-Food Science and Technology, 192, 115737. https://doi.org/10.1016/j.lwt.2024.115737
- Tanaka, F., Hayakawa, F. and Tatsuki, M., 2020. Flavor and texture characteristics of ‘Fuji’and related apple (Malus domestica L.) cultivars, focusing on the rich watercore. Molecules, 25(5), 1114. https://doi.org/10.3390/molecules25051114
- Theis, A.L., Waldack, A.J., Hansen, S.M. and Jeannot, M.A., 2001. Headspace solvent microextraction: a very rapid method for identification of volatile components of Iranian Pimpinella anisum seed. Analytical Chemistry, 73(23), 5651-5654. https://doi.org/10.1016/j.aca.2004.09.006
- Triaux, Z., Petitjean, H., Marchioni, E., Boltoeva, M. and Marcic, C., 2020. Deep eutectic solvent–based headspace single-drop microextraction for the quantification of terpenes in spices. Analytical and Bioanalytical Chemistry, 412, 933-948. https://doi.org/10.1007/s00216-019-02317-9
- Wang, Q., Gao, F., Chen, X., Wu, W., Wang, L., Shi, J., Huang, Y., Shen, Y., Wu, G. and Guo, J., 2022. Characterization of key aroma compounds and regulation mechanism of aroma formation in local Binzi (Malus pumila× Malus asiatica) fruit. BMC Plant Biology, 22(1), 532. https://doi.org/https://doi.org/10.1186/s12870-022-03896-z
- Wardencki, W., Curyło, J. and Namieśnik, J., 2007. Trends in solventless sample preparation techniques for environmental analysis. Journal of Biochemical and Biophysical Methods, 70(2), 275-288. https://doi.org/10.1080/10408347.2013.833850
- Wu, X., Bi, J. and Fauconnier, M.L., 2022. Characteristic volatiles and cultivar classification in 35 apple varieties: A case study of two harvest years. Foods, 11(5), 690. https://doi.org/10.3390/foods11050690
- Yajima, I., Yanai, T., Nakamura, M., Sakakibara, H. and Hayashi, K., 1984. Volatile flavor components of Kogyoku apples. Agricultural and Biological Chemistry, 48(4), 849-855. https://doi.org/10.1080/00021369.1984.10866249
- Yan, D., Shi, J., Ren, X., Tao, Y., Ma, F., Li, R., Liu, X. and Liu, C., 2020. Insights into the aroma profiles and characteristic aroma of ‘Honeycrisp’apple (Malus× domestica). Food Chemistry, 327, 127074. https://doi.org/10.1016/j.foodchem.2020.127074
- Young, H., Gilbert, J. M., Murray, S. H., and Ball, R. D., 1996. Causal effects of aroma compounds on Royal Gala apple flavours. Journal of the Science of Food and Agriculture, 71(3), 329-336. https://doi.org/10.1002/(SICI)1097-0010(199607)71:3<329::AID-JSFA588>3.0.CO;2-8
- Zainal-Abidin, M.H., Hayyan, M., Hayyan, A. and Jayakumar, N. S., 2017. New horizons in the extraction of bioactive compounds using deep eutectic solvents: A review. Analytica Chimica Acta, 979, 1-23. https://doi.org/10.1016/j.aca.2017.05.012