Table 1 Volatile profiles (Fresh Weight) in flavedo of NRH and ZHJ

Monoterpenes

15.91

d-limonene

67384.04 ± 20472.24

51399.87 ± 10955.84

17.23

γ-terpiene

5453.92 ± 550.84

5527.90 ± 835.14

13.76

β-myrcene

786.47 ± 114.29

692.36 ± 127.94

10.94

α-pinene

326.29 ± 37.78

310.62 ± 53.49

13.12

β-pinene

233.32 ± 41.10

261.16 ± 40.17

16.61

trans-ocimene

192.21 ± 20.61

239.32 ± 26.44

15.11

α-terpinene

124.29 ± 12.58

127.07 ± 20.84

18.49

terpinolene

122.22 ± 13.18

127.58 ± 20.00

10.60

α-thujene^T10

72.33 ± 7.51

73.70 ± 11.52

15.59

p-cymene

67.80 ± 67.34

116.42 ± 15.02

14.59

α-phellandrene

24.55 ± 2.22

23.56 ± 3.68

12.91

sabinene^T11

21.78 ± 2.01

20.74 ± 2.47

11.76

camphene

6.04 ± 1.45

6.00 ± 1.18

16.11

β-cis-ocimene^*

5.29 ± 0.58

6.19 ± 0.34

14.46

ψ-limonene ^T11

5.25 ± 0.54

5.26 ± 0.45

15.95

β-phellandrene^{* T11}

4.96 ± 0.05

5.35 ± 0.17

Sum

74830.76

58943.10

Monoterpene alcohols

19.33

β-linalool

148.35 ± 12.96

134.82 ± 13.93

24.08

α-terpineol^*

69.29 ± 5.57

46.59 ± 9.21

25.44

citronella

23.23 ± 2.84

21.59 ± 2.62

17.87

cis-sabinene hydrate

20.53 ± 1.62

16.05 ± 2.77

23.31

4-terpinenol

2.43 ± 0.16

2.05 ± 0.24

28.56

p-mentha-1 (7),8 (10)-dien-9-ol ^T1

1.99 ± 0.20

1.74 ± 0.35

Sum

265.82

222.84

Monoterpene aldehydes

21.95

citronellal

101.00 ± 10.47

85.77 ± 15.28

27.50

α-citral^**

86.66 ± 8.28

41.23 ± 8.78

26.10

β-citral^**

33.43 ± 2.45

16.46 ± 3.15

7.94

(E)-2-hexenal

26.78 ± 0.53

27.31 ± 0.78

27.99

perillal^{* T13}

7.92 ± 0.33

6.19 ± 0.66

Sum

255.79

176.96

Monoterpene ketones

26.94

piperitone ^T9

5.00 ± 0.01

5.06 ± 0.04

26.50

carvone^T1

4.26 ± 0.58

3.35 ± 0.51

27.67

2-cyclohexen-1-one, 3-methyl-6-(1-methylethenyl)-, (S)-^{** T1}

2.59 ± 0.26

0.68 ± 0.19

Sum

11.85

9.09

Monoterpene oxides

21.20

trans-limonene oxide

4.78 ± 3.21

5.74 ± 0.79

20.97

cis-limonene oxide ^*

2.17 ± 0.41

1.48 ± 0.18

Sum

6.95

7.22

Monoterpene esters

32.15

geraniol acetate

18.00 ± 1.22

15.70 ± 3.79

31.27

nerol acetate

9.74 ± 0.39

10.23 ± 1.23

30.85

citronellol acetate

5.08 ± 0.74

4.73 ± 0.63

Sum

32.82

30.66

Sesquiterpenes

39.54

germacrene B ^T13

76.01 ± 6.96

68.02 ± 11.67

35.11

β-farnesene

51.57 ± 3.19

47.15 ± 7.01

30.06

δ-elemene^T13

49.69 ± 2.61

45.23 ± 7.93

36.38

germacrene D ^T2

48.13 ± 4.19

42.60 ± 7.47

32.48

β-elemene ^T13

42.96 ± 3.06

42.50 ± 6.77

44.84

β-sinensal ^T13

40.41 ± 2.80

33.85 ± 5.49

35.31

α-caryophyllene

23.95 ± 1.91

23.45 ± 3.68

34.18

γ-elemene ^T13

23.74 ± 1.95

21.12 ± 3.34

37.88

δ-cadinene ^T13

11.64 ± 0.87

11.46 ± 1.67

33.76

trans-caryophyllene

11.24 ± 7.70

7.12 ± 0.60

31.87

copaene ^T13

10.82 ± 0.89

10.42 ± 1.62

37.48

8-isopropenyl-1,5-dimethyl-cyclodeca-1,5-diene ^T13

8.10 ± 0.16

8.27 ± 0.83

37.19

δ-guaiene ^T2

5.59 ± 0.22

5.08 ± 0.40

36.97

elixene ^T13

5.49 ± 0.19

5.48 ± 0.56

38.10

β-sesquiphellandrene

5.29 ± 0.30

4.64 ± 0.55

32.95

α-bergamotene^{* T13}

5.20 ± 0.20

4.50 ± 0.21

43.39

β-eudesmol ^T13

5.04 ± 0.19

4.68 ± 0.33

39.19

α-elemol ^T2

4.93 ± 0.10

4.66 ± 0.46

34.38

α-guaiene ^T2

4.22 ± 0.24

4.00 ± 0.38

40.28

germacrened-4-ol ^T3

2.45 ± 0.31

2.16 ± 0.04

Sum

436.47

396.39

Alcohols

7.84

cis-3-hexen-1-ol

27.00 ± 16.76

45.09 ± 4.81

17.99

1-octanol^*

25.80 ± 2.12

12.10 ± 4.46

8.45

1-hexanol

12.16 ± 0.19

13.77 ± 1.36

Sum

64.96

70.96

Aldehydes

19.69

nonanal^*

92.56 ± 10.32

65.70 ± 10.91

24.52

decanal^*

59.24 ± 4.97

38.97 ± 8.22

33.55

dodecanal

37.41 ± 3.53

73.66 ± 37.94

5.80

(Z)-3-hexenal

14.35 ± 1.20

17.82 ± 2.58

5.85

hexenal

11.66 ± 1.24

20.72 ± 6.09

29.16

hendecanal^*

4.72 ± 0.54

3.62 ± 0.54

Sum

219.94

220.49

Acids

50.31

2-propenoic acid, 3-(4-hydroxy-3-methoxyphenyl)-

2.22 ± 0.45

1.82 ± 0.15

47.08

tetradecanoic acid

1.11 ± 0.21

1.31 ± 0.06

51.44

n-hexadecanoic acid^**

5.50 ± 1.00

1.07 ± 0.02

Sum

8.83

4.20

Esters

51.37

hexadecanoic acid, methyl ester^*

1.29 ± 0.29

5.20 ± 1.58

55.23

methyl octadeca-9,12-dienoate

2.53 ± 0.20

2.31 ± 0.45

55.36

55.45

methyl cis-6-octadecenoate

methyl (10E)-10-octadecenoate

1.49 ± 0.06

1.31 ± 0.03

1.46 ± 0.16

1.21 ± 0.09

Sum

6.62

10.18

Unknowns

20.46

trans-p-mentha-2,8-dienol^*T12

2.96 ± 0.59

1.25 ± 0.27

Sum

2.96

1.25

Monoterpenes

75403.98

59389.87

Sesquiterpenes

436.47

396.39

Terpenoids

75840.46

59786.27

Total others

303.31

307.08

Total volatiles

76143.77

60093.35