Volatiles of quince fruit and leaf (Cydonia oblonga Mill.) from Serbia BIOLOGICA NYSSANA 7 (2)  December 2016: 145-149 Veličković, D.T. et al.  Volatiles of quince fruit and leaf… 145 Original Article Received: 08 October 2016 Revised: 30 October 2016 Accepted: 24 November 2016 Volatiles of quince fruit and leaf (Cydonia oblonga Mill.) from Serbia Dragan T. Veličković1*, Mihailo S. Ristić2, Nebojša P. Milosavljević1, Dejan N. Davidović1, Dragan M. Milenović3, Ana S. Veličković4 1College of Agriculture and Food Technology, Prokuplje, Serbia, 2Institute for Medicinal Plant Research "Dr. Josif Pančić", Belgrade, Serebia 3"Zdravlje-Actavis" company, Leskovac, Serbia 4Out-patient Clinic Leskovac - Health Center Vučje, Koste Stamenkovića bb, Vučje, Serbia * E-mail: dvelickovic7@ptt.rs Abstract: Veličković, D.T., Ristić, M.S., Milosavljević, N.P., Davidović, D.N., Milenović, D.M. Veličković, A.S.: Volatiles of quince fruit and leaf (Cydonia oblonga Mill.) from Serbia. Biologica Nyssana, 7 (2), December 2016: 145-149. The subject of this study is the chemical composition of volatile fractions from the fruit and leaf of quince (Cydonia oblonga Mill.). Dominant components were ethyl 2-methylbutanoate, (E,E)--farnesene, ethyl- (2E,4Z)-decadienoate, pentadecanol, -acoradienol, ethyl decanoate, ethyl octanoate, (E)-nerolidol, ethyl dodecanoate, 14-hydroxy-9-epi-(E)-caryophyllene, (2Z,6E)-farnesol, -cedrene. Volatile fraction of the fruit was also characterized by ethyl-(4Z)-decenoate, ethyl 9-dodecenoate, ethyl hexanoate, ethyl nonanoate and - cyclocitral, where in the leaf n-octanal, n-hexanol, n-nonanal and benzaldehyde were present. Key words: Quince fruit, Quince leaf, Volatiles, 2-methylbutanoate, ethyl-(2E,4Z)-decadienoate Apstrakt: Veličković, D.T., Ristić, M.S., Milosavljević, N.P., Davidović, D.N., Milenović, D.M. Veličković, A.S.: Isparljive supstancije ploda i lista dunje (Cydonia oblonga Mill.) iz Srbije. Biologica Nyssana, 7 (2), Decembar 2016: 145-149. Predmet ove studije je hemijski sastav isparljivih frakcija ploda i lista dunje (Cydonia oblonga Mill.). Dominantne komponente su bile etil 2-metilbutanoat, (E,E)--farnezen, etil-(2E,4Z)-dekadienoat, pentadekanol, -akoradienol, etil dekanoat, etil oktanoat, (E)-nerolidol, etil dodekanoat, 14-hidroksi-9-epi-(E)- kariofilen, (2Z,6E)-farnezol, -cedren. Isparljivu frakciju ploda karakterišu etil-(4Z)-decenoat, etil 9- dodecenoat, etil heksanoat, etil nonanoat i -ciklocitral, dok su u listu bili prisutni n-oktanal, n-heksanol, n- nonanal i benzaldehid. Key words: plod dunje, list dunje, isparljive supstancije, 2-metilbutanoat, etil-(2E,4Z)-dekadienoat 7 (2) • December 2016: 145-149 12th SFSES • 16-19 June 2016, Kopaonik Mt DOI: 10.5281/zenodo.200413 BIOLOGICA NYSSANA 7 (2)  December 2016: 145-149 Veličković, D.T. et al.  Volatiles of quince fruit and leaf… 146 Introduction Quince fruit and its products (jam, marmalade, compote, juice, quince-brandy) are highly appreciated in the market. Some studies have shown that the quince is an excellent natural source of polyphenols and flavonoids (O l i v e i r a et al., 2007; S i l v a et al., 2008), giving it a very important role and position in traditional medicine. The fruit is used in the treatment of dysentery, the leaf can be used as a sedative and seed as an emulsifying agent in hair-fixing lotions (E l a n d s e n & M a g n e y , 1992; B e r g m a n et al., 1996). In addition to fructose, glucose and sorbitol, malic, tartaric, citric, phytic and quinic acids, and crude fiber (O l i v e i r a et al., 2008; R o d r i g u e z - G u i s a d o et al., 2009; S z y c h o w s k i et al., 2014), as main phenolic components in the extract of quince leaf were found 5-O-caffeoylquinic acid and 3-O-caffeoylquinic acid (C o s t a et al., 2009). Latest studies show that C. oblonga is a rich source of chlorogenic acids, proanthocyanidins and flavonol C and O-glycosides (K a r a r et al., 2014), as well as the volatile components (S c h m a r r & B e r n h a r d t , 2010). In the seeds of quince linoleic, palmitic, oleic, stearic, eicosanoic, palmitoleic and arachidonic acids were identified (D a n e s h v a n d et al., 2012; S z y c h o w s k i et al., 2014). Among a large number of metabolites isolated from the quince fruit skin, a few have been identified and tested on radical- scavenging and antioxidant activities (A l e s i a n i et al., 2010). A l - S n a f i (2016) states antioxidant potential, immunological, antiallergic, cardiovascular, reproductive, dermatological, anticancer, antiinflammatory, antidiabetic, protective effects, as well as effect on respiratory smooth muscle contraction. The main goal of this study was to determine quince volatiles of Serbian origin, and compare our results with accessible publications. Material and methods Plant material For this study, it was used the quince Cydonia oblonga Mill. var. Leskovačka, from locality Džigolj, municipality Prokuplje, central Serbia (J o v a n o v i ć , 1972). The authors are very grateful to Prof. Jugoslav Trajković (College of Agriculture and Food Technology) for botanical identification of the plant. Ripe fruits were collected in October 2013. Isolation of volatiles (VS) Volatiles were isolated from small pieces of quince fruit and cut fresh leaves. The materials were put into a round-bottom flask of 2 l, and hydrodistillation process was performed using a Clevenger-type apparatus (Ph. Eur. 4, 2002), with hydromodule 1 : 10. The VS were taken up in cyclohexane (1 ml), which was inserted in a graduated tube of the apparatus. Solutions were stored for a few hours at 4 °C in the dark until being analyzed by GC. Identification of volatiles (VS) Analytical gas chromatography (GC-FID) and combination of gas chromatography and mass spectrometry (GC-MS) were used for the characterization of volatiles trapped in graduated tube of the Clevenger type apparatus used. GC-FID analysis was carried out on an Agilent Technologies, model 7890A gas chromatograph, equipped with split-splitless injector and automatic liquid sampler (ALS), attached to HP-5MS column (30 m × 320 m, 0.25 m film thickness) and fitted to flame ionization detector (FID). Carrier gas flow rate (H2) was 1 ml/min, split ratio 1:30, injector temperature was 250 °C, detector temperature 300 °C, while column temperature was linearly programmed from 40 °C to 260 °C (at a rate of 4 °C/min), and then kept isothermally at 260 °C for 15 min. Sample solutions were prepared in cyclohexane (in conc. of approximately 10 g/l), and injected by ALS (2 l). The same analytical conditions as those mentioned for GC-FID were employed for GC-MS analysis, along with column HP-5MS (30 m × 250 m, 0.25 m film thickness), using HP G 1800C Series II GCD system [Hewlett-Packard, Palo Alto, CA (USA)]. Helium was used as a carrier gas. Transfer line was heated at 260 °C. Mass spectra were acquired in EI mode (70 eV) in m/z range 40- 450. The amounts of 0.2 l of sample solutions were injected. Constituents were identified by comparison of their mass spectra with those stored in MS libraries (Wiley 275, NIST05 and Adams 2007), using different search engines (PBM, NIST 2.0), as well as using calibrated AMDIS (ver. 2.64) for determination and comparison of retention indices (A d a m s , 2007). Similarly, quantification of present constitu- ents was achieved by normalization method, based upon the area percent report obtained by GC-FID. Statistics has been covered by FID specification (results with a range of deviation for the level 1%). BIOLOGICA NYSSANA 7 (2)  December 2016: 145-149 Veličković, D.T. et al.  Volatiles of quince fruit and leaf… 147 Table 1. Volatiles of different parts of quince (%, w/w) Constituents KIL Fruit Leaf Ethyl 2-methylbutanoate 864 1.4 23.4 n-Hexanol 863 0.3 1.3 2-Methylbutyl acetate 875 tr. - 2-Heptanol 896 0.7 0.7 n.i. - - 0.4 n.i. - - 0.3 Ethyl pentanoate (ethyl valerate) 901 tr. - Cumene 924 tr. 0.7 Ethyl tiglate 929 0.5 0.2 Benzaldehyde 952 - 1.0 6-Methyl-5-hepten-2-one 981 0.2 tr. Ethyl hexanoate (ethyl caproate) 997 2.0 tr. n-Octanal 998 tr. 2.0 (2E,4E)-Heptadienal 1005 - tr. Hexyl acetate 1007 tr. - -Phellandrene 1025 tr. - 1,8-Cineole 1026 tr. - Ethyl 2-hexenoate 1038 0.1 - -Terpinene 1054 tr. - n-Octanol 1063 0.1 - cis-Linalool oxide 1067 tr. - Fenchone 1083 tr. - Linalool 1095 - tr. Ethyl heptanoate (ethyl enanthate) 1097 0.8 tr. 4-Ethyl-2-hexynal n.a. - 0.6 n-Nonanal 1100 tr. 1.1 (Z)-Isocitral 1160 0.9 0.6 Ethyl 3-(methylthio)-(Z)- 2-propenoate n.a. 0.3 - Camphor 1141 tr. - Ethyl-(4E)-octenoate 1184 0.2 - -Terpineol 1186 - tr. Ethyl octanoate (ethyl caprilate) 1196 4.3 1.9 n-Decanal 1201 - 0.3 -Cyclocitral 1217 1.2 0.6 Ethyl-(2E)-octenoate 1245 0.5 - Ionene 1258 0.6 0.3 Vitispirane 1272 1.0 0.6 Ethyl nonanoate (ethyl pelargonate) 1294 1.4 0.7 (2E,4E)-Decadienal 1315 0.3 - n.i. - 0.5 - n.i. - 0.1 - Ethyl-(4Z)-decenoate 1380 2.7 1.9 Ethyl-(4E)-decenoate 1388 0.5 - Ethyl decanoate (ethyl caprinate) 1395 6.3 3.9 (E)--Damascone 1413 0.9 0.6 -Cedrene 1421 2.5 1.5 Constituents KIL Fruit Leaf (E)--Farnesene 1454 tr. - Ethyl-(2E,4Z)- decadienoate 1467 8.3 4.2 (E)--Ionone 1487 tr. tr. Ethyl undecanoate 1498 0.7 0.7 (E,E)--Farnesene 1505 18.4 16.1 -Dehydro-ar- himachalene 1516 0.6 - Megastigmatrienone ** n.a. 0.2 - (E)-Nerolidol 1561 4.1 2.7 Ethyl 9-dodecenoate n.a. 2.2 - Ethyl dodecanoate (ethyl laurate) 1594 3.2 3.8 -Atlantol 1608 tr. - n.i. - 3.0 1.7 n.i. - 0.4 - Himachalol 1652 0.5 0.3 Lyral 1665 tr. - 14-Hydroxy-9-epi-(E)- caryophyllene 1670 3.8 2.3 n.i. - 0.4 - n.i. - 0.2 - (2Z,6Z)-Farnesol 1698 0.5 - (2E,6Z)-Farnesal 1713 0.6 0.5 (2Z,6E)-Farnesol 1722 3.2 1.7 Ethyl 3- hydroxydodecanoate n.a. 0.2 - -Acoradienol 1762 7.6 5.1 Pentadecanol 1773 7.8 5.2 n.i. - 0.1 - Ethyl tetradecanoate (ethyl myristate) 1795 tr. - Hexahydrofarnesyl acetone 1838 - 0.5 n-Hexadecanol 1874 0.3 - Nonadecane 1900 0.3 - Methyl hexadecanoate (methyl palmitate) 1922 0.5 - n.i. - 0.2 - Ambrettolide n.a. 0.2 - Ethyl hexadecanoate (ethyl palmitate) 1992 tr. - Eicosane 2000 tr. 0.5 Octadecanol 2077 0.1 - Heneicosane 2100 0.3 1.0 Ethyl oleate (ethyl (Z)-9- octadecenoate) 2179 0.7 0.7 Docosane 2200 0.2 - n.i. - - 0.8 Tricosane 2300 0.2 0.9 Tetracosane 2400 0.2 1.1 n.i. - - 0.6 Pentacosane 2500 0.3 1.4 Hexacosane 2600 0.2 1.2 Heptacosane 2700 0.3 2.4 % w/w - mass percent defined by peak area percent determined by integration (GC-FID) BIOLOGICA NYSSANA 7 (2)  December 2016: 145-149 Veličković, D.T. et al.  Volatiles of quince fruit and leaf… 148 KIL - Kovats (retention) index (Adams, 2007) n.a. - not available n.i. - not identified tr. - traces (< 0.1%) ** - tentative identification Results and discussion Table 1. shows a comparative overview of volatiles in the quince fruit and leaf, where 94.8% and 96.2% of the components were identified from the total mass, respectively. Components which dominate in the quince fruit and leaf are (E,E)--farnesene (18.4% and 16.1%), ethyl-(2E,4Z)-decadienoate (8.3% and 4.2%), pentadecanol (7.8% and 5.2%), -acoradienol (7.6% and 5.1%), ethyl decanoate (6.3% and 3.9%), ethyl octanoate (4.3% and 1.9%), (E)-nerolidol (4.1% and 2.7%) and ethyl dodecanoate (3.2% and 3.8%). The above components are more present in the fruit, with the exception of ethyl dodecanoate. One of the essential components of the leaf is ethyl 2- methylbutanoate with 23.4%, which is present in the fruit with only 1.4%. Some more components that characterize the volatile fraction of the fruit are 14-hydroxy-9-epi- (E)-caryophyllene (3.8%), (2Z,6E)-farnesol (3.2%), ethyl-(4Z)-decenoate (2.7%), -cedrene (2.5%), ethyl 9-dodecenoate (2.2%), ethyl hexanoate (2.0%), ethyl nonanoate (1.4%) and -cyclocitral (1.2%). The leaf is characterized by 14-hydroxy-9-epi-(E)- caryophyllene (2.3%), n-octanal (2.0%), (2Z,6E)- farnesol (1.7%), -cedrene (1.5%), n-hexanol (1.3%), n-nonanal (1.1%), benzaldehyde (1.0%), as well as the compounds of the cosane group. The presence of fatty acid esters is obvious, especially in the quince fruit: ethyl decanoate (6.3%) > ethyl octanoate (4.3%) > ethyl dodecanoate (3.2%) > ethyl hexanoate (2.0%) > ethyl nonanoate (1.4%) > ethyl heptanoate (0.8%) > ethyl undecanoate (0.7%) > ethyl oleate (0.7%). Ethyl pentanoate, ethyl tetradecanoate and ethyl hexadecanoate occur only in traces. S c h m a r r & B e r n h a r d t (2010) identified esters in the quince fruit (ethyl butanoate, ethyl 2- methylbutanoate, 2-methylbutyl acetate, butyl acetate, hexyl acetate), alcohols (butanol, 2- methylbutanol, hexanol, (E)-2-hexenol), carbonyls (hexanal, (Z)-3-hexenal, (E)-2-octenal, (E/Z)-2- nonenal, 1-octen-3-one), and terpenes ((E)-- damascenone, limonene, farnesene, linalool, eugenol). The authors assume that (E,Z)- and (E,E)- ethyl 2,4-decadienoate could be characteristic esters responsible for flavor. S o u s a et al. (2007) identified trans-9-amino-8-hydroxy-2,7-dimethyl- nona-2,4-dienoic acid glucopyranosyl ester, homo- monoterpenic compound which could be chemical marker. Also, main volatiles of quince fruit were trans--farnesene, furfural, megastigma-4,6,8-trien- 3-one, trans-marmelo lactone and cis-marmelo lactone (T s u n e y a et al., 1983). The results of U m a n o et al. (1986) showed that main volatile constituents of quince fruit peel were ethyl propionate, ethyl acetate, ethyl dodecanoate, ethyl octanoate, ethanol, 2-methyl-1-propanol. The newest chemical analysis of C. oblonga showed that it contained phenolics, pectin, essential and volatile oils. The analysis of the leaves essential oils (A l - S n a f i , 2016) showed that it contained aromatic aldehyde, fatty acid, oxygenated monoterpene, and sesquiterpene hydrocarbon (benzaldehyde, hexadecanoic acid, linalool, (E)-β-ionone, germacrene D). We have also identified some of those substances, especially regarding the ethyl 2- methylbutanoate, ethyl-(2E,4Z)-decadienoate, (E,E)- -farnesene, ethyl octanoate, and ethyl dodecanoate. Conclusion The presented results show that the quince fruit and leaf are an extraordinary source of substances, which from the chemical standpoint, belong to different groups of compounds. Quince fruit was rich in fatty acid esters. Among the volatiles, ethyl 2- methylbutanoate and ethyl-(2E,4Z)-decadienoate were the most abundant which could be responsible for flavor. Acknowledgements. The Ministry of Education and Science of the Republic of Serbia supported this study through the projects no. 172047 and 173021. References Adams, R.P. 2007: Identification of Essential Oil Components by Gas Chromatography / Mass Spectrometry. 4th ed. Allured Publishing Corp., Carol Stream, IL 60188 USA. Alesiani, D., Canini, A., D’Abrosca, B., DellaGreca, M., Fiorentino, A., Mastellone, C., Monaco, P., Pacifico, S. 2010: Antioxidant and antiproliferative activities of phytochemicals from Quince (Cydonia vulgaris) peels. Food Chemistry, 118: 199-207. Al-Snafi, A. E. 2016: The medical importance of Cydonia oblonga - A review. IOSR Journal of Pharmacy, 6 (6): 87-99. Bergman, R., Afifi, A.K., Heidgerip, P.M. 1996: Text of Histology. 9th ed. Saunders WB, Montréal, 159 p. BIOLOGICA NYSSANA 7 (2)  December 2016: 145-149 Veličković, D.T. et al.  Volatiles of quince fruit and leaf… 149 Costa, R.M., Magalhães, A.S., Pereira, J.A., Andrade, P.B., Valentão, P., Carvalho, M., Silva, B.M. 2009: Evaluation of free radical-scavenging and antihemolytic activities of quince (Cydonia oblonga) leaf: A comparative study with green tea (Camellia sinensis). Food and Chemical Toxicology, 47: 860-865. Daneshvand, B., Ara, K.M., Raofie, F. 2012: Comparison of supercritical fluid extraction and ultrasound-assisted extraction of fatty acids from quince (Cydonia oblonga Miller) seed using response surface methodology and central composite design. Journal of Chromatography A, 1252: 1-7. Elandsen, S., Magney, J. 1992: Color Atlas of Histology. 6th ed. Mosby, Toronto, 104 p. European Pharmacopoeia, 2002. 4th edn., Strasbourg. Jovanović, B. 1972. Genus Cydonia Mill. In: Josifović, M. (ed.), Flora SR Srbije. IV: 130-131, SANU, Beograd. Karar, E.G.M., Pletzer, D., Jaiswal, R., Weingart, H., Kuhnert, N. 2014: Identification, characterization, isolation and activity against Escherichia coli of quince (Cydonia oblonga) fruit polyphenols. Food Research International, 65: 121-129. Oliveira, A.P., Pereira, J.A., Andrade, P.B., Valentão, P., Seabra, R.M., Silva, B.M. 2007: Phenolic profile of Cydonia oblonga Miller leaf. Journal of Agricultural and Food Chemistry, 55: 7926-7930. Oliveira, A.P., Pereira, J.A., Andrade, P.B., Valentão, P., Seabra, R.M., Silva, B.M. 2008: Organic acids composition of Cydonia oblonga Miller leaf. Food Chemistry, 111: 393-399. Rodriguez-Guisado, I., Hernández, F., Melgarejo, P., Legua, P., Martínez, R., Martínez, J.J. 2009: Chemical, morphological and organoleptical characterisation of five Spanish quince tree clones (Cydonia oblonga Miller). Scientia Horticulturae, 122: 491-496. Schmarr, H.G., Bernhardt, J. 2010: Profiling analysis of volatile compounds from fruits using comprehensive two-dimensional gas chromatography and image processing techniques. Journal of Chromatography A, 1217: 565-574. Silva, B.M., Valentão, P., Seabra, R.M., Andrade, P.B. 2008. Quince (Cydonia oblonga Miller): an interesting dietary source of bioactive compounds. In: Papadopoulos, K.N. (ed.), Food Chemistry Research Developments: 243-266, Nova Science Publishers, Inc., New York. Sousa, C., Silva, M.B., Andrade, B.P., Valentão, P., Silva, A., Ferreres, F., Seabra, M.R., Ferreira, A.M. 2007: Homo-monoterpenic compounds as chemical markers for Cydonia oblonga Miller. Food Chemistry, 100: 331-338. Szychowski, J.P., Munera-Picazo, S., Szumny, A., Carbonell-Barrachina, A.Á., Hernández, F. 2014: Quality parameters, bio-compounds, antioxidant activity and sensory attributes of Spanish quinces (Cydonia oblonga Miller). Scientia Horticulturae, 165: 163-170. Tsuneya, T., Ishihara, M., Shiota, H., Shiga, M. 1983: Volatile Components of Quince Fruit (Cydonia oblonga Mill.). Agricultural and Biological Chemistry, 47 (11): 2495-2502. Umano, K., Shoji, A., Hagi, Y., Shibamoto, T. 1986: Volatile constituents of peel of quince fruit, Cydonia oblonga Miller. Journal of Agricultural and Food Chemistry, 34 (4): 593-596.