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Table 1 GC-MS analysis of the volatile components presented in the S. asper fractions

From: Acid-base fractions separated from Streblus asper leaf ethanolic extract exhibited antibacterial, antioxidant, anti-acetylcholinesterase, and neuroprotective activities

Fraction

Retention time (min)

Relative area (%)

Tentative identification

Match quality (%)

Neutral

6.111

2.6

Dihydroactinidiolide

94

6.548

5.5

Cadalene

80

6.696

11.7

n.i.

–

7.124

7.0

Benzothiazole, 2-(2-hydroxyethylthio)-

99

7.466

5.9

n.i.

–

8.370

9.4

Cholest-14-en-3-ol, 4-methyl-, (3.beta.,4.alpha.,5.alpha.)-

93

8.417

10.8

n.i.

–

8.612

7.4

2,4-Bis(1-phenylethyl)phenol

86

10.072

7.3

n.i.

–

Acidic

5.531

0.6

4-Hydroxybenzaldehyde

91

5.683

0.2

Vanillin

96

6.477

0.3

(+/−)-Jasmonic acid

95

6.543

3.6

Cadalene

83

6.686

3.1

n.i.

–

7.010

2.2

Palmitic acid

99

7.114

6.9

Benzothiazole, 2-(2-hydroxyethylthio)-

98

7.457

12.6

Linolenic acid

99

7.485

8.5

n.i.

–

8.355

6.8

Cholest-14-en-3-ol, 4-methyl-, (3.beta.,4.alpha.,5.alpha.)-

91

8.398

7.2

n.i.

–

8.593

5.8

2,4-Bis(1-phenylethyl)phenol

93

Basic

5.421

1.6

n.i.

–

6.543

2.2

Phenol, 2-(1-phenylethyl)-

91

6.686

30.1

n.i.

–

6.762

4.9

n.i.

–

7.109

6.0

Benzothiazole, 2-(2-hydroxyethylthio)-

99

7.295

8.2

n.i.

–

7.471

12.4

n.i.

–

8.350

4.2

n.i.

–

8.398

4.6

n.i.

–

8.588

3.3

Phenol, 2,4-bis(1-phenylethyl)-

91

  1. n.i. Not identified