Phytochemical profiling of the leaves of Chenopodium and Polygonum using GC-MS

 

Vinod Kumar, Anket Sharma, Harpreet Kaur, Ashwani Kumar Thukral, Renu Bhardwaj*

Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar-143005 Punjab, India

*Corresponding Author E-mail: renubhardwaj82@gmail.com

 

ABSTRACT:

The aim of this study to screen the various phytochemicals present in the methanolic extracts of the oven dried leaves of Chenopodium ambrosioides, Chenopodium album, Polygonum barbatum and Polygonum lanigerum using GC-MS. The major compound present in C. ambrosioides is ergosta-7, 2, 2-dien-3-ol, (3beta, 22 E). In C. album the major compound detected are naphthalene, decahydro-1, 1, 4a-trimethyl-6-methylene-5-(3-methylene-4-pentenyl)-[4aS-(4a alpha, 5alpha, 8abeta)]. Pentamethylmelamine is the major compound present in the P. barbatum. Stigmast-5-en-3-ol, (3beta)-24 beta-ethyl-5-delta-cholesten-3 beta-ol is the major compound found in P. lanigerum.

 

KEYWORDS: River Beas, GC-MS, chenopodiaceae, polygonaceae.

 

 


1.      INTRODUCTION:

Plants contain a variety of chemical compounds such as steroids, alkaloids, terpenoids, flavones, phenols etc. and are responsible for many therapeutic properties and pharmacological actions1. Plants also contain many phytopharaceuticals which have many applications in the field of agriculture, human and veterinary medicine. Natural products play important role in the drug developments used in the treatment and prevention of disease2. C. album belongs to the family chenopodiaceae and has been used for food and has medicinal importance such as anthelmintic, laxative, diuretic and tonic3. C. ambrosioides also belongs to the family chenopodiaceae and is used as anthelminthic. The oil of chenopodium is used in the treatment of amoebic dysentery. P. barbatum belongs to family polygonaceae and is used in the treatment of pain, fever and inflammatory conditions, and also acts as a diuretic agent4. P. lanigerum is used for the treatment of atherosclerosis, hypertension and dermatitis.

 

 

Previous studies on phytochemicals profiling has been reported in many plants such as Brassica juncea, Cleistanthus collinus, Calotropis gigantean, Nervilia aragoana, Stylosanthes fruticosa etc.5-9. The present study was designed to assess the various phytochemicals present in the plants P. barbatum, P. lanigerum, C. ambrosioides and C. album.

 

2.      MATERIALS AND METHODS:

Collection and processing of plant materials

Plant samples were collected from the river bed of river Beas from the Beas town (Punjab, India). Identification and authentication of plants were done from the Botanical Survey of India, Dehradun. From 1 g of oven dried leaves of each plant species, 100 ml methanolic extract was prepared and dried in the rotary vacuum evaporator. To the dried extract, 4 ml of methanol was added which was used for the analysis of phytochemicals. 2 µl of sample was injected into the system.

 

GC-MS analysis:

Using Shimadzu GC-MS QP2010 Plus, the phytochemical profiling of methanolic extracts of plants was carried out. Carrier gas used was helium.

 

 


Table 1 Compounds present in the leaves methanolic extracts of Chenopodium using GC-MS

 

C. ambrosioides

 

 

S.No.

Name of compound

Rt. Time

Area%

1

Phenol, 2-methyl-5-(1-methylethyl)-Carvacrol

9.298

2.87

2

Alpha-iso-methyl ionone

9.431

7.25

3

4-(1H)-Isobenzofuranone, hexahydro-3a, 7a-dimethyl-cis-(+/-)

10.99

2.29

4

Morpholine,4-(1-cyclopenten-1-yl)-1-Morpholino-1 cyclopentene

14.91

0.92

5

Phenol, 4-(1,1-dimethylethyl)-p-tert-Butylphenol 

15.01

2.31

6

Nonyl-phenol mix of isomers

15.11

3.89

7

Phenol, nonyl-Nonylphenol

15.2

2.36

8

Cyclopropanecarboxylic acid, 3-(3-methoxy-2-methyl-3-oxo-1-propenyl)-2,2-dimethyl-3-(2-butenyl)-2-methyl-4-oxo-2-cyclopentene

15.41

0.63

9

Ethyltetramethylcyclopentadiene

15.52

2.58

10

Tricyclo[7.2.0.0(2,6)]undecan-5-ol,2,6,10,10-tetramethyl- (isomer 3)

16.2

0.87

11

Benzenepropanoic  acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, methyl ester

17.43

18.75

12

Palmitic acid

17.92

10.02

13

Ergost-5-en-3-ol, 22, 23-dimethyl-(3beta)

19.56

3.19

14

Hexadecanoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester

22.52

8.33

15

1-Alpha-18O-1,25-dihydroxycholecalciferol

24.82

1.42

16

Ergosta-7,22-dien-3-ol, (3beta, 22E)

34.05

23.59

17

Beta-Sitosterol

35.11

5.92

18

Cholesta-7, 24-dien-3-ol, (3beta, 5 alpha)

35.32

2.81

 

C. album

 

 

1

Phenylalanine

14.716

3.2

2

Nonylphenol isomer

14.892

0.67

3

Hexestrol

14.988

2.46

4

Phenol, nonyl-Nonylphenol

15.092

3.06

5

Dodecyl-phenol  mix of isomers

15.186

2.18

6

Phenol, 2-methyl-5-(1-methylethyl)-Carvacrol

15.3

0.28

7

Cyclopropanecarboxylic acid, 3-(3-methoxy-2-methyl-3-oxo-1-propenyl)-2,2-dimethyl-3-(2-butenyl)-2-methyl-4-oxo-2-cyclopenten

15.393

0.59

8

Phenol, 4-(1,1-dimethylethyl)- p-tert-Butylphenol 

15.503

2.1

9

1,2-Epoxy-1,2,5,9,9-Pentamethylspiro(3,5)non-5-ene

15.589

2.13

10

Pluchidiol

15.718

2.05

11

Tricyclo[7.2.0.0E2,6]undecan-5-ol,2,6,10,10-tetramethyl- (isomer3)

16.181

0.46

12

Benzothiazole, 2-(2-hydroxyethylthio)

17.054

2.75

13

Benzenepropanoic  acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, methyl ester

17.416

15.63

14

Palmitic acid

17.976

15.11

15

Ergost-5-en-3-ol, 22, 23-dimethyl-(3beta)

19.065

0.73

16

Linoleic acid

19.302

4.61

17

Gamma-Sitosterol 

34.161

4.82

18

Naphthalene,decahydro-1,1,4a-trimethyl-6-methylene-5-(3-methylene-4-pentenyl)-[4aS-(4a alpha, 5alpha, 8abeta)]

37.994

32.06

19

Taraxasterol

38.792

5.11

 


Initially the column oven temperature was set at 70oC and held for 5 minutes, then increased to 250oC at 10oC per minute and held for 10 minutes, temperature was increased to 300oC at 10oC per minute and held for another 10 minutes. The instrument specifications were injection temperature: 280oC, pressure: 110.8 kPa, sampling time: 1 minute, flow control mode: linear, total flow: 38.9 ml/min, injection mode: splitless, column flow: 1.71 ml/min, linear velocity: 47.9 cm/sec, purge flow: 3 ml/min, sample injection volume: 2 µl, ion source temperature: 250oC, interface temperature: 290oC, solvent cut time: 3.5 minute and detector gain mode: relative. DB-5 ms analytical column with 30 m length and 0.025 mm id was used.

 

All the compounds which were detected in samples were identified by comparing mass spectra with National Institute of Standard and Technology (NIST08s) and Wiley 7 library.

 

3.      RESULTS AND DISCUSSIONS:

Table 1-2 shows the various phytochemicals present in the methanolic extracts of the leaves of P. barbatum, P. lanigerum, C. ambrosioides and C. album. A total of 18, 19, 20 and 26 phytochemicals were detected in C. ambrosioides, C. album, P. barbatum and P. lanigerum. The major compounds found in C. ambrosioides were benzenepropanoic acid, 3, 5-bis (1, 1-dimethylethyl)-4-hydroxy-, methyl ester (18.75%), palmitic acid (10.02%) and ergosta-7, 22-dien-3-ol, (3beta, 22E) (23.59%). In C. album, the major compounds detected were benzenepropanoic acid, 3, 5-bis (1, 1-dimethylethyl)-4-hydroxy-, methyl ester (15.63%), palmitic acid (15.11%) and naphthalene, decahydro-1, 1, 4a-trimethyl-6-methylene-5-(3-methylene-4-pentenyl)-[4aS-(4a alpha, 5alpha, 8abeta.)] (32.06%).

 

 

 


Table 2 Compounds present in the leaves methanolic extracts of Polygonum using GC-MS

 

P. barbatum

 

 

S.No.

Name of compound

Rt. Time

Area%

1

1,2-Benzenediol pyrocatechol

7.684

3.21

2

8-Tetradecyn-1-ol

9.408

0.44

3

2-Propenoic acid, 3-phenyl-methyl ester cinnamic acid methyl ester

10.508

0.51

4

Ethanone, 1-(3,4,5-trimethoxyphenyl)

15.546

4.35

5

Benzenepropanoic  acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, methyl ester

17.418

4.43

6

Palmitic acid

17.928

3.68

7

2-(4-Methylphenyl)benzoic acid

21.619

6.83

8

Ethyl 2-(2-phenylethylthio)benzoate

21.839

6.67

9

7-Phenylbicyclo[3.2.1]octa-2,6-diene

21.967

4.82

10

Hexadecanoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester

22.527

2.47

11

Pentamethylmelamine

23.232

30.75

12

Wogonin

23.972

1.95

13

(E)-2-hydroxy-4'-methoxystilbene

24.833

3.2

14

4H-1-Benzopyran-4-one,5-hydroxy-6,7-dimethoxy-2-phenyl-5-Hydroxy-6,7-dimethoxyflavone

25.495

7.12

15

Carbonic acid, allyl pentadecyl ester

28.97

1.51

16

Vitamin E

30.221

0.94

17

Stigmasterol

32.838

3.85

18

Stigmast-5-en-3-ol,(3beta)-24beta-ethy-5delta-cholesten-3 beta-ol

34.233

8.34

19

Naphthalene, decahydro-1, 1, 4a-trimethyl-6-methylene-5-(3-methylene-4-pentenyl)-[4aS-(4a alpha, 5alpha,8a beta)]

37.959

3.56

20

Decahydro-8a-ethyl-1,1,4a,6-tetramethylnaphthalene

38.165

1.36

 

P. lanigerum

 

 

1

Beta-n-butylthiophan

5.866

3.63

2

Beta-Eucaine

7.766

1.5

3

8-Methyl-alpha-ionone

9.407

2.3

4

Neocurdione

13.086

0.45

5

Morpholine,4-(1-cyclopenten-1-yl)-1-Morpholino-cyclopentene

14.889

0.4

6

Hexestrol

14.984

1.55

7

Nonyl-phenol mix of isomers

15.089

1.16

8

Phenol, nonyl- Nonylphenol

15.18

1.93

9

(-)-Loliolide

15.296

0.77

10

Cyclopropanecarboxylic acid, 3-(3-methoxy-2-methyl-3-oxo-1-propenyl)-2,2-dimethyl-3-(2-butenyl)-2-methyl-4-oxo-2-cyclopenten

15.389

0.48

11

Phenol, 2-methyl-5-(1-methylethyl)-Carvacrol

15.498

1.43

12

1,2-Epoxy-1,2,5,9,9-Pentamethyl-spiro(3,5)non-5-ene

15.58

0.92

13

(E,1'RS,2'RS,3'SR)-4-(2',3'-epoxy-2',6',6'-trimethylcyclohexyl)-3-methyl-3-buten-2-one

16.677

1.56

14

Benzenepropanoic  acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, methyl ester

17.415

8.75

15

Undecanoic acid, 4,8-dimethyl-10-oxo-methyl ester

17.522

0.4

16

Palmitic acid

17.935

11.62

17

Acetic acid, 2-(2,2,6-trimethyl-7-oxa-bicyclo[4.1.0]hept-1-yl)-propenyl ester

19.291

1.05

18

1-Naphthalenol,1,2,3,4,4a,5,6,8a-octahydro-4a,8-dimethyl-2-(2-propenyl)- 2,6-dimethyl-9(2propenyl)-10-hydroxyb

19.529

14.11

19

Stearic acid

19.775

1.84

20

Tricosyl pentafluoropropionate

20.841

1.2

21

Eicosanoic acid arachidic acid

21.49

0.87

22

Hexadecanoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester

22.508

5.27

23

Vitamin E

30.199

1.85

24

Campesterol

31.936

3.32

25

Stigmasterol

32.795

5.8

26

Stigmast-5-en-3-ol,(3beta)-24beta-ethyl-5-delta-cholesten-3 beta-ol

34.231

25.84

 


 

The major compounds found in P. barbatum were pentamethylmelamine (30.75%), 4H-1-Benzopyran-4-one,5-hydroxy-6,7-dimethoxy-2-phenyl-5-Hydroxy-6,7-dimethoxyflavone (7.12%) and stigmast-5-en-3-ol, (3beta)-24beta-ethy-5delta-cholesten-3 beta-ol (8.34%). In P. lanigerum the major compounds detected were benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, methyl ester (8.75%), palmitic acid (11.62%) and 1-Naphthalenol,  1,2,3,4,4a,5,6,8a-octahydro-4a,8-dimethyl-2-(2-propenyl)-2,6-dimethyl-9(2propenyl)-10 hydroxyb (14.11%). Benzenepropanoic acid, 3, 5-bis (1, 1-dimethylethyl)-4-hydroxy-, methyl ester and palmitic acid are the major compounds present in all the plant species studied.

 

4.   CONCLUSION:

In the present study 18, 19, 20 and 26 compounds were detected in the methanolic extracts of C. ambrosioides, C. album, P. barbatum and P. lanigerum. Palmitic acid and benzenepropanoic acid, 3, 5-bis (1, 1-dimethylethyl)-4-hydroxy-, methyl ester were the common compounds present in all the plants.

 

 

5.      ACKNOWLEDGEMENTS:

The authors are thankful to the Head, Department of Botanical & Environmental Sciences, for providing research facilities. VK is also thankful to the University Grants Commission, New Delhi, for providing the financial assistance under the programme on university with potential for excellence.

 

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Received on 23.09.2015             Modified on 08.10.2015

Accepted on 15.10.2015           © RJPT All right reserved

Research J. Pharm. and Tech. 8(12): Dec., 2015; Page 1629-1632

DOI: 10.5958/0974-360X.2015.00292.9