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Table 3 Concentration of sesquiterpene lactones (SLs) in 22 cultivars of lettuce at mature and bolting stages

From: Identification and quantification of selected metabolites in differently pigmented leaves of lettuce (Lactuca sativa L.) cultivars harvested at mature and bolting stages

S/No

Cultivar

Lactucin (µg/g)

Lactucopicrin (µg/g)

Total SLs (µg/g)

Mature stage

Bolting stage

Mature stage

Bolting stage

Mature stage

Bolting stage

1

Adam

5.2 ± 0.4efgh

174.8 ± 14.7b

29.4 ± 1.7l

615.1 ± 30.2gh

34.6 ± 1.7l

789.9 ± 36.5ef

2

Pungseong

2.2 ± 0.1kl

181.2 ± 3.0b

29.3 ± 2.7l

1255.8 ± 12.3cd

31.5 ± 2.1l

1437.1 ± 11.3bc

3

Jeokhagye

5.3 ± 0.2efg

99.8 ± 6.8d

80.4 ± 1.8d

1156.9 ± 64.5de

85.8 ± 1.5e

1256.7 ± 57.7bcd

4

Jeoksagye

6.6 ± 0.4e

81.7 ± 3.3ef

64.7 ± 3.1fg

1396.7 ± 29.0bc

71.3 ± 2.6fgh

1478.4 ± 24.8bc

5

Cheonsang

13.7 ± 0.2c

43.8 ± 2.2g

52.2 ± 3.7hijk

169.2 ± 9.9i

65.9 ± 3.2hi

213.0 ± 9.8h

6

Mansang

14.9 ± 1.4c

80.4 ± 2.6ef

61.8 ± 3.8fg

207.8 ± 9.1i

76.7 ± 4.0efg

288.2 ± 9.5gh

7

Hacheong

6.1 ± 0.3ef

35.8 ± 1.8ghi

99.0 ± 6.5c

1176.4 ± 112.6de

105.1 ± 5.4d

1212.2 ± 93.2cd

8

Jeokdan

9.8 ± 0.9d

84.9 ± 6.4def

124.1 ± 3.3b

1227.9 ± 81.6cd

133.9 ± 3.4c

1312.8 ± 70.7bcd

9

Jangsu

3.2 ± 0.3ijkl

42.3 ± 1.4gh

45.9 ± 2.1k

593 ± 23.8gh

49.1 ± 1.8k

635.2 ± 20.6f

10

Gopungjeokchukmyeon

2.7 ± 0.2jkl

9.7 ± 0.6j

60.6 ± 2.8fghi

815.3 ± 18.6fg

63.4 ± 2.4hij

825.1 ± 15.7ef

11

Mihong

2.2 ± 0.1kl

11.1 ± 0.8j

62.5 ± 2.5fg

579.2 ± 31.4h

64.7 ± 2.1hi

590.3 ± 26.3f

12

Chunpungjeokchukmyeon

2.2 ± 0.2kl

18.0 ± 0.6ij

61.4 ± 4.4fgh

628.2 ± 55.9gh

63.6 ± 3.7hij

646.2 ± 46.0f

13

Gohong

3.6 ± 0.2hijk

17.8 ± 0.6ij

64.7 ± 6.9fg

662.6 ± 57.9gh

68.3 ± 5.8gh

680.4 ± 47.3f

14

Miseonjeokchukmyeon

4.9 ± 0.1fgh

25.2 ± 1.6hij

74.8 ± 1.8de

1536.9 ± 132.6b

79.7 ± 1.4ef

1562.2 ± 109.1b

15

Sunredbutter

41.9 ± 1.9a

73.5 ± 6.5ef

344.8 ± 14.5a

594.1 ± 24.8gh

386.7 ± 10.4a

667.6 ± 25.5f

16

Hyeseonmanchudae

5.0 ± 0.5fgh

171.5 ± 5.9b

51.0 ± 5.8jk

438.1 ± 12.2h

56.0 ± 5.1ijk

609.5 ± 9.5f

17

Sambokhacheong

5.0 ± 0.5fgh

21.1 ± 0.8ij

103.2 ± 5.3c

539.6 ± 7.7h

108.2 ± 4.7d

560.7 ± 7.0fg

18

Chunhachujeokchima

25.9 ± 2.2b

90.4 ± 6.4de

123.6 ± 8.2b

521.6 ± 29.6h

149.5 ± 8.4b

612.1 ± 29.3f

19

Yelpungjeokchima

2.4 ± 0.1kl

72.6 ± 13.2f

51.6 ± 1.5ijk

994.5 ± 24.1ef

54.0 ± 1.1jk

1067.1 ± 26.4de

20

Superseonpung

1.8 ± 0.2l

213 ± 48.2a

9.9 ± 0.2m

3888.2 ± 586.1a

11.7 ± 0.7m

4101.2 ± 448.5a

21

Tomalin

4.2 ± 1.1ghij

119.1 ± 12.9c

68.6 ± 2.0ef

985.6 ± 183.8ef

72.8 ± 0.8fgh

1104.7 ± 98.3bcd

22

Cheongchima

5.0 ± 1.6fghi

11.6 ± 0.1j

60.1 ± 9.9ghij

211.5 ± 19.3i

65.1 ± 5.8hij

223.1 ± 4.9h

  1. Values are mean  ±  standard deviation of biological triplicates. Different letters between rows indicate statistically significant differences at p  < 0 0.05
  2. S/No sample number