International Journal of Chemical Engineering / 2019 / Article / Tab 4

Research Article

Antioxidant Activity and Volatile Composition of Red Araçá Pulp Under Different Drying Conditions

Table 4

Chemical composition (%) of the volatile fraction of ethanolic extracts of red araçá fruits obtained at different drying conditions.

Compoundtr (min)RIaRIbRelative area (%)
Run 1 (40°C, 1.5 m/s)Run 2 (60°C, 1.5 m/s)Run 3 (40°C, 2.5 m/s)Run 4 (60°C, 2.5 m/s)Run 5c (50°C, 2.0 m/s)

Furfural (FF)4.888301.982.726.92.52.92 ± 0.32
1R-α-Pinene6.81937ndnd0.55ndnd
1,1-Diethoxy-3-methylbutane7.60930nd1.421.080.750.77 ± 0.14
β-Pinene8.43980ndnd0.21ndnd
α-Terpinene9.27101610181.00nd0.36ndnd
δ-Limonene9.7610291031nd2.14nd1.400.80 ± 0.11
Eucalyptol9.84103710331.792.131.602.001.72 ± 0.35
trans-β-Ocimene10.02103910500.600.81nd0.810.55 ± 0.16
γ-Terpinene10.80106310620.062.501.723.102.29 ± 0.54
Terpinolene11.64108810881.151.961.831.220.45 ± 0.12
Linalol12.09109910981.261.291.241.251.43 ± 0.46
2,3-Dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one ((DDMP)13.53114411342.263.407.232.073.28 ± 0.30
Butanoicacidhexylester15.20119211910.750.930.960.800.78 ± 0.02
Dodecane15.43119912000.621.170.970.650.85 ± 0.08
5-Hydroxymethylfurfural (HMF)16.341226122430.3312.8539.5614.6523.15 ± 1.33
α-Copaene21.35137813761.60nd1.151.421.24 ± 0.24
Caryophyllene23.01143114289.859.167.578.697.49 ± 0.55
Humulene23.82145714400.890.770.640.810.68 ± 0.10
γ-Muurolene24.56148214772.002.071.481.881.55 ± 0.26
β-Selinene24.91149314852.312.121.522.041.74 ± 0.28
α-Selinene25.20150214942.532.452.072.201.86 ± 0.15
β-Bisabolene25.77152215091.431.211.501.131.02 ± 0.08
γ-Cadinene26.12153415132.342.002.002.091.98 ± 0.22
Selina-3,7(11)-diene26.54154815344.142.002.002.962.29 ± 0.54
E-Nerolidol27.19157115641.650.950.771.140.93 ± 0.09
Cubenol28.94163216421.360.730.870.760.74 ± 0.11
γ-Eudesmol29.06163716291.130.510.370.460.78 ± 0.21
(−) -Cadinol29.59165616361.051.330.701.241.09 ± 0.28
1,3a-Ethano(1H)inden-4-ol-octahydro-2,2.4.7a-tetramethyl29.82166416480.451.340.990.30nd
Eudesm-7(11)-en-4-ol30.82170017004.501.010.680.990.92 ± 012
Total relative area of identified compounds79.0360.9788.5359.3164.31 ± 0.32

tr: retention time; RIa: calculated retention index; RIb: retention index from Pherobase and Leffingwell. cAverage values of triplicate runs and standard deviation.