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. 2024 Jul 16;12(10):7186–7201. doi: 10.1002/fsn3.4307

TABLE 2.

The determined levels of aromatic volatile compounds present in GT infusions obtained during different brewing amounts and times (%).

Aroma components Time (min)
5 10 15
GT1 GT2 GT3 GT1 GT2 GT3 GT1 GT2 GT3
n‐Nonanal (1.81 ± 0.03)ij (2.24 ± 0.01)de (2.67 ± 0.03)b (2.06 ± 0.03)fg
2‐Decenal (6.93 ± 0.04)cf (5.50 ± 0.04)fj (5.21 ± 0.01)gk (5.10 ± 0.01)hk (7.97 ± 0.01)bd (8.42 ± 0.03)bd (7.27 ± 0.02)be (6.81 ± 0.02)dg (3.65 ± 0.01)kl
Isobornyl acetate (2.37 ± 0.01)b (2.82 ± 0.02)a (1.64 ± 0.03)c
Unknown 1 (6.78 ± 0.01)x (9.60 ± 0.03)n (6.43 ± 0.02)z (7.55 ± 0.04)u (12.65 ± 0.01)d (5.88 ± 0.04)bl (11.55 ± 0.07)f (6.25 ± 0.01)al (7.02 ± 0.03)w
α‐Ionone (2.72 ± 0.04)no (3.46 ± 0.01)jk (5.13 ± 0.01)e (3.65 ± 0.02)ij (5.82 ± 0.01)d (9.17 ± 0.01)b (11.97 ± 0.01)a (5.72 ± 0.02)d (5.79 ± 0.04)d
β‐Ionone (7.75 ± 0.04)p (9.45 ± 0.04)l (12.94 ± 0.00)b (7.39 ± 0.01)rs (10.97 ± 0.02)g (17.73 ± 0.04)a (11.70 ± 0.08)e (9.41 ± 0.01)lm
Methoxy‐1‐methylethyl pyrazine (7.51 ± 0.01)u (9.20 ± 0.14)q (10.29 ± 0.03)n (7.20 ± 0.03)q (12.55 ± 0.02)g (15.83 ± 0.02)a (12.52 ± 0.02)g (8.51 ± 0.02)r
Diethyl phthalate (24.32 ± 0.03)a (18.15 ± 0.21)j (22.61 ± 0.03)e (22.88 ± 0.03)d (22.25 ± 0.03)f (23.44 ± 0.03)c (19.56 ± 0.03)h (23.95 ± 0.01)b (15.30 ± 0.01)o
Nonadecane (2.87 ± 0.06)g (2.78 ± 0.01)h
Lauric acid (2.27 ± 0.01)y (3.98 ± 0.01)m (4.88 ± 0.05)k (4.70 ± 0.03)l (6.04 ± 0.02)f (6.51 ± 0.01)d (3.33 ± 0.02)q (5.44 ± 0.01)h (3.30 ± 0.02)qr
Ethyl salicylate (2.54 ± 0.06)f (3.47 ± 0.01)c
Isopropyl myristate (7.07 ± 0.04)b (3.05 ± 0.04)c (2.14 ± 0.03)e (4.66 ± 0.04)c
Caffeine (4.10 ± 0.01)s (2.22 ± 0.01)w (4.41 ± 0.03)qr (5.68 ± 0.01)l (5.92 ± 0.04)k (5.33 ± 0.04)m (5.94 ± 0.02)k
Phytone (6.78 ± 0.04)t (5.91 ± 0.01)u (7.41 ± 0.01)rs (7.22 ± 0.03)s (6.89 ± 0.01)t (7.95p ± .01)p (8.66 ± 0.01)n (7.58 ± 0.03)qr (7.69 ± 0.42)q
Theaspirane (4.90 ± 0.02)e (4.35 ± 0.02)f (2.26 ± 0.01)k (3.90 ± 0.01)g (6.34 ± 0.02)b (3.12 ± 0.01)h
Palmitic acid (5.96 ± 0.04)a
Unknown 2 (3.27 ± 0.02)a
Decanal (1.82 ± 0.02)c (1.24 ± 0.03)d
Unknown 3 (2.13 ± 0.02)d (2.55 ± 0.01)a
Heptadecane (1.62 ± 0.04)e (1.85 ± 0.01)d
Unknown 4 (4.30 ± 0.03)c (3.40 ± 0.03)e (8.33 ± 0.01)a (3.25 ± 0.01)f
Hexadecane (2.93 ± 0.04)e (3.05 ± 0.03)d
Methyl palmitate (1.67 ± 0.01)e (1.96 ± 0.04)d (1.63 ± 0.03)e (2.72 ± 0.03)a
Butyl laurate (3.74 ± 0.03)a
ω‐Pentadecalactone (1.63 ± 0.00)b (1.97 ± 0.01)a (2.01 ± 0.03)a (1.76 ± 0.03)b
Nonanoic acid (2.22 ± 0.01)t (7.83 ± 0.01)i
Unknown 5 (5.01 ± 0.02)j (6.42 ± 0.02)d
Lauryl alcohol (1.82 ± 0.01)a
Eicosane (3.87 ± 0.01)e (4.27 ± 0.03)c (2.43 ± 0.02)g
Unknown 6 (2.23 ± 0.03)b (1.35 ± 0.03)c
Isoamyl benzoate (1.96 ± 0.01)g (1.99 ± 0.03)g (2.64 ± 0.02)de
3‐Methyl‐2‐(n‐pentanyl)‐2‐cyclopenten‐1‐one (11.63 ± 0.04)a
5‐Hydroxy‐2,4‐decadienoic acid δ‐lactone (1.14 ± 0.03)a
Unknown 7 (3.67 ± 0.03)a
6‐Methyl‐5‐hepten‐2‐one (1.47 ± 0.01)a
Octadecane (1.57 ± 0.02)j
Butylated hydroxytoluene (10.21 ± 0.04)b
Tetrahydrofurfuryl butyrate (10.47 ± 0.00)a
Aroma components Time (min)
20 25 30
GT1 GT2 GT3 GT1 GT2 GT3 GT1 GT2 GT3
n‐Nonanal (0.77 ± 0.02)l (0.90 ± 0.02)l (2.01 ± 0.00)gh (2.00 ± 0.01)g
2‐Decenal (5.46 ± 0.01)hk (4.17 ± 0.01)jk (4.43 ± 0.02)ik (4.95 ± 0.02)hk (3.75 ± 0.01)kl (5.01 ± 0.04)hk (4.71 ± 0.02)hk (6.00 ± 0.02)ei (6.88 ± 0.02)df
Unknown 1 (9.95 ± 0.01)l (6.49 ± 0.02)z (7.37 ± 0.01)v (10.33 ± 0.04)k (7.65 ± 0.01)t (8.23 ± 0.02)r (10.98 ± 0.03)h (11.82 ± 0.01)e (5.03 ± 0.02)cl
α‐Ionone (3.37 ± 0.04)jl (3.54 ± 0.03)j (3.95 ± 0.03)hi (2.51 ± 0.01)op (3.92 ± 0.03)hi (4.58 ± 0.01)f (3.22 ± 0.02)km (2.22 ± 0.03)pq (3.92 ± 0.01)hi
β‐Ionone (7.15 ± 0.02)t (6.24 ± 0.02)w (8.94 ± 0.01)n (6.44 ± 0.04)v (7.20 ± 0.01)st (9.83 ± 0.01)k (7.66 ± 0.01)pq (6.82 ± 0.03)u (9.83 ± 0.01)k
Methoxy‐1‐methylethyl pyrazine (8.14 ± 0.01)s (6.15 ± 0.01)y (10.08 ± 0.03)o (6.63 ± 0.01)x (7.01 ± 0.03)w (11.45 ± 0.00)k (9.64 ± 0.03)p (9.57 ± 0.01)p (11.73 ± 0.01)j
Diethyl phthalate (17.36 ± 0.04)l (11.76 ± 0.24)w (17.37 ± 0.04)l (12.90 ± 0.02)t (11.84 ± 0.02)w (14.27 ± 0.01)q (21.67 ± 0.39)g (14.64 ± 0.02)p (18.00 ± 0.03)jk
Nonadecane (4.84 ± 0.02)c (4.43 ± 0.01)f (4.42 ± 0.03)e
Lauric acid (5.27 ± 0.01)i (4.71 ± 0.01)l (4.83 ± 0.11)k (3.68 ± 0.04)n (3.58 ± 0.01)o (2.55 ± 0.03)w (4.98 ± 0.02)j (3.58 ± 0.02)o
Ethyl salicylate (4.54 ± 0.04)b (2.66 ± 0.01)e (3.08 ± 0.01)d (2.33 ± 0.03)g
Isopropyl myristate (8.15 ± 0.01)a
Caffeine (8.04 ± 0.03)c (5.14 ± 0.02)n (3.96 ± 0.03)t (4.81 ± 0.01)p (4.14 ± 0.04)s (6.55 ± 0.01)g (7.20 ± 0.01)e (5.64 ± 0.01)l (6.42 ± 0.03)h
Phytone (8.27 ± 0.04)o (5.67 ± 0.02)v (8.12 ± 0.01)op (8.12 ± 0.02)op (8.02 ± 0.01)p (9.55 ± 0.02)ij (9.86 ± 0.01 g)h (9.13 ± 0.01)lm (8.25 ± 0.04)o
Theaspirane (3.64 ± 0.03)a (9.41 ± 0.01)a (5.43 ± 0.03)d (5.96 ± 0.02)c (3.52 ± 0.01)i (2.19 ± 0.01)l
Decanal (1.12 ± 0.01)e (1.75 ± 0.03)c
Unknown 3 (2.17 ± 0.04)d (1.34 ± 0.01)i (1.46 ± 0.02)h (2.03 ± 0.01)e (1.73 ± 0.03)f
Heptadecane (1.42 ± 0.03)f (2.04 ± 0.04)c
Unknown 4 (2.61 ± 0.04)h (3.65 ± 0.04)d (5.15 ± 0.02)b
Hexadecane (2.35 ± 0.03)g
Methyl palmitate (2.63 ± 0.03)b (2.17 ± 0.01)c (1.51 ± 0.01)f
Butyl laurate
ω‐Pentadecalactone
Nonanoic acid (9.83 ± 0.03)c (4.31 ± 0.04)p (6.52 ± 0.03)j (8.63 ± 0.01)f (8.53 ± 0.01)g (11.95 ± 0.03)p (4.50 ± 0.02)o (6.54 ± 0.04)j (4.25 ± 0.03)gj
Unknown 5 (7.96 ± 0.01)a (6.28 ± 0.03)e (5.53 ± 0.03)f (7.21 ± 0.04)b
Lauryl alcohol (1.24 ± 0.04)b
Eicosane (4.03 ± 0.01)d (2.94 ± 0.03)f (1.36 ± 0.02)h
Unknown 6 (1.05 ± 0.01)d
Isoamyl benzoate (4.54 ± 0.04)a (2.24 ± 0.01)f (2.59 ± 0.02)e (2.67 ± 0.02)d
Octadecane (3.30 ± 0.03)h (4.76 ± 0.01)e (4.22 ± 0.02)g (1.35 ± 0.01)k
Butylated hydroxytoluene (7.71 ± 0.02)c (5.31 ± 0.02)f (5.73 ± 0.02)e (4.94 ± 0.02)g
Geranyl acetone (1.65 ± 0.03)a
Linalool (1.01 ± 0.01)a
Tetrahydrofurfuryl butyrate (1.90 ± 0.02)d (4.92 ± 0.02)b (2.76 ± 0.01)c
Pentacosane (1.82 ± 0.03)a
Pentadecane (1.41 ± 0.01)f (2.35 ± 0.04)b (1.67 ± 0.02)e
Isopulegyl acetate (1.78 ± 0.02)a (1.61 ± 0.03)b
Tetradecane (0.97 ± 0.01)d
Docosane (1.47 ± 0.001)a
Decyl propionate (1.67 ± 0.02)a
Aroma components Time (min)
35 40 45
GT1 GT2 GT3 GT1 GT2 GT3 GT1 GT2 GT3
n‐Nonanal (1.67 ± 0.03)j (2.35 ± 0.07)ce (1.80 ± 0.14)ij (2.37 ± 0.01)cd (2.79 ± 0.01)ab
2‐Decenal (6.10 ± 0.02)eh (7.04 ± 0.01)cf (7.34 ± 0.03)be (7.53 ± 0.02)be (7.75 ± 0.04)bd (5.16 ± 0.03)hk (2.33 ± 0.02)l (11.75 ± 0.01)a (4.82 ± 0.51)hk
Unknown 1 (9.72 ± 0.03)m (8.33 ± 0.02)q (5.85 ± 0.01)bl (8.25 ± 0.02)r (10.82 ± 0.02)i (11.23 ± 0.04)g (6.68 ± 0.03)y (9.06 ± 0.03)o
α‐Ionone (3.91 ± 0.01)hi (3.66 ± 0.01)ij (5.06 ± 0.53)e (3.65 ± 0.02)ij (4.43 ± 0.01)fg (5.16 ± 0.00)e (2.07 ± 0.01)qr (5.32 ± 0.04)e (3.11 ± 0.02)lm
β‐Ionone (7.44 ± 0.01)r (10.70 ± 0.08)h (12.34 ± 0.04)c (7.47 ± 0.01)qr (10.92 ± 0.03)g (9.38 ± 0.01)lm (4.90 ± 0.01)x (12.13 ± 0.03)d (10.34 ± 0.00)i
Methoxy‐1‐methylethyl pyrazine (7.67 ± 0.02)t (11.23 ± 0.01)l (14.01 ± 0.03)d (9.62 ± 0.01)p (10.46 ± 0.02)m (11.95 ± 0.01)l (7.14 ± 0.01)v (12.44 ± 0.01)gh
Diethyl phthalate (19.17 ± 0.01)i (12.23 ± 0.01v (14.54 ± 0.03)p (16.62 ± 0.01)m (12.24 ± 0.02)v (11.15 ± 0.01)x (13.34 ± 0.03)s (17.82 ± 0.01)k (13.87 ± 0.02)r
Nonadecane (4.74 ± 0.02)d
Lauric acid (4.97 ± 0.02)j (3.54 ± 0.04)o (2.67 ± 0.04)u (5.75 ± 0.03)g (3.52 ± 0.01)o (5.35 ± 0.02)i (3.24 ± 0.01)rs (6.76 ± 0.01)e (3.17 ± 0.01)s
Isopropyl myristate (1.42 ± 0.01)f
Caffeine (3.76 ± 0.02)u 10.54 ± 0.03)a (6.33 ± 0.01)l (4.45 ± 0.01)q (8.35 ± 0.00)b (6.06 ± 0.04)j (4.91 ± 0.04)o
Phytone (9.74 ± 0.01)hi (12.62 ± .03)ab (12.78 ± 0.03)a (12.53 ± 0.04)b (10.54 ± 0.04)b (9.37 ± 0.01)jk (8.73 ± 0.01)n (9.01 ± 0.02)m (10.16 ± 0.01)ef
Decanal (2.14 ± 0.01)a (2.03 ± 0.02)b
Unknown 3 (1.61 ± 0.01)g (2.33 ± 0.03)c
Heptadecane (3.86 ± 0.01)a (2.16 ± 0.03)b
Unknown 4 (2.27 ± 0.04)i (4.37 ± 0.01)c
Hexadecane (4.76 ± 0.01)b
Nonanoic acid (2.45 ± 0.03)s (6.22 ± 0.04)k (6.53 ± 0.02)j (9.30 ± 0.03)d (9.85 ± 0.02)c (11.55 ± 0.01)b (8.36 ± 0.01)h (5.43 ± 0.04)m
Unknown 5 (5.32 ± 0.02)h (6.65 ± 0.04)c (3.86 ± 0.04)l (5.14 ± 0.01)i (5.35 ± 0.02)h (2.99 ± 0.03)n
Lauryl alcohol
Eicosane (4.73 ± 0.03)b (7.83 ± 0.03)a
Isoamyl benzoate (3.79 ± 0.03)b
Octadecane (5.02 ± 0.01)d (1.72 ± 0.03)i (6.52 ± 0.02)b
Butylated hydroxytoluene (6.88 ± 0.03)d (4.84 ± 0.02)h (3.23 ± 0.03)j
Pentadecane (2.14 ± 0.01)d (1.75 ± 0.02)e (2.50 ± 0.04)a
Isopulegyl acetate (1.61 ± 0.01)b
Tetradecane (2.17 ± 0.01)b
Octyl octanoate (3.00 ± 0.01)a
α‐Cubebene (2.90 ± 0.01)a
Pulegone (17.14 ± 0.02)a
Neodene (1.75 ± 0.01)a
cis‐8‐Undecenal (2.35 ± 0.04)b (1.71 ± 0.03)d (1.16 ± 0.01)f (3.23 ± 0.00)a
Aroma components Time (min)
50 55 60
GT1 GT2 GT3 GT1 GT2 GT3 GT1 GT2 GT3
n‐Nonanal (1.81 ± 0.01)ij (2.20 ± 0.14)ef (2.87 ± 0.03)a (2.45 ± 0.01)c (1.45 ± 0.01)k (1.83 ± 0.03)hi (2.80 ± 0.04)ab
2‐Decenal (8.77 ± 0.01)b (7.26 ± 0.01)be (8.16 ± 0.01)bd (7.34 ± 0.00)be (8.54 ± 0.01)bc (4.45 ± 0.01)ij (7.19 ± 0.03)be (6.92 ± 0.03)df
Isobornyl acetate
Unknown 1 (13.95 ± 0.02)c (10.46 ± 0.01)j (10.97 ± 0.00)h (7.77 ± 0.01)s (17.45 ± 0.04)a (14.67 ± 0.01)b (8.62 ± 0.01)p
α‐Ionone (5.21 ± 0.01)e (3.09 ± 0.01)lm (6.36 ± 0.01)c (1.88 ± 0.04)r (3.65 ± 0.01)ij (3.09 ± 0.03)lm (4.13 ± 0.01)gh (2.92 ± 0.03)mn
β‐Ionone (7.97 ± 0.03)o (10.67 ± 0.01)h (10.10 ± 0.02)j (12.42 ± 0.01)c (7.84 ± 0.04o)p (10.12 ± 0.01)j (7.21 ± 0.02)st (9.23 ± 0.01)m (9.67 ± 0.029)k
Methoxy‐1‐methylethyl pyrazine (12.40 ± 0.14)h (13.04 ± 0.03)f (14.55 ± 0.03)c (13.02 ± 0.01)f (13.43 ± 0.02)e (15.34 ± 0.00)b (9.64 ± 0.03)p (11.73 ± 0.02)j
Diethyl phthalate (22.60 ± 0.01)e (13.79 ± 0.01)r (12.56 ± 0.04)u (17.45 ± 0.01)l (15.81 ± 0.00)n (9.46 ± 0.02)y (15.62 ± 0.03)n (13.48 ± 0.01)s
Nonadecane (5.84 ± 0.03)b (6.26 ± 0.02)a (4.41 ± 0.01)e (2.22 ± 0.02)j
Lauric acid (2.32 ± 0.03)yx (7.13 ± 0.03)b (6.27 ± 0.01)e (3.41 ± 0.01)p (2.36 ± 0.01)x (8.19 ± 0.00)a (2.46 ± 0.03)w (3.27 ± 0.03)qr (3.04 ± 0.02)t
Ethyl salicylate (7.42 ± 0.01)a
Caffeine (3.20 ± 0.02)v (6.79 ± 0.02)f (7.74 ± 0.04)d (4.37 ± 0.01)r
Phytone (10.17 ± 0.02)ef (12.56 ± 0.02)b (10.12 ± 0.03)ef (10.76 ± 0.03)c (10.12 ± 0.01)fg (10.25 ± 0.02)e (8.56 ± 0.03)n (8.64 ± 0.01)n (9.24 ± 0.01)kl
Unknown 3 (2.47 ± 0.01)b (2.57 ± 0.01)a (1.63 ± 0.01)g
Heptadecane
Unknown 4 (2.77 ± 0.02)g (2.30 ± 0.01)i (1.76 ± 0.01)j (2.81 ± 0.03)g
Hexadecane (6.56 ± 0.03)a (2.46 ± 0.03)f (4.54 ± 0.04)c (1.42 ± 0.01)i
Nonanoic acid (5.53 ± 0.01)l (3.93 ± 0.02)q (2.73 ± 0.02)r (1.37 ± 0.01)u (4.43 ± 0.03)o (9.22 ± 0.02)e (5.12 ± 0.02)n
Unknown 5 (3.21 ± 0.01)m (1.85 ± 0.03)p (2.66 ± 0.03)o (4.75 ± 0.01)k
Unknown 6 (2.85 ± 0.03)a
Octadecane (3.55 ± 0.04)g (7.83 ± 0.03)a (6.24 ± 0.04)c
Butylated hydroxytoluene (3.58 ± 0.04)i (2.38 ± 0.01)l (13.30 ± 0.01)a (6.90 ± 0.03)d (3.03 ± 0.01)k
Pentadecane (2.24 ± 0.03)c (2.29 ± 0.02)bc (2.43 ± 0.03)a
Tetradecane (2.14 ± 0.02)b (1.52 ± 0.02)c (0.94 ± 0.01)d (2.12 ± 0.03)b
Decyl propionate (0.29 ± 0.00)b
3,7‐Dimethyl‐1‐octanol (1.70 ± 0.01)a
Davanone B (9.12 ± 0.01)a
cis‐8‐Undecenal (2.07 ± 0.02)c (2.00 ± 0.03)c (1.54 ± 0.03)e
2‐Undecenal (1.71 ± 0.04)a
Methyl anthranilate (11.27 ± 0.02)a
Di‐isobutyl phthalate (4.60 ± 0.04)a (2.02 ± 0.02)b
2‐Octenal (1.94 ± 0.03)a

Note: Results are expressed as mean value±standard deviation (n = 2). Different letters in superscript within rows show significant differences (p ≤ .01); GT1, GT2, and GT3 indicate 5, 7.5, and 10 g samples, respectively; − indicates not detected aroma component.