Home | About PM | Editorial board | Search | Ahead of print | Current Issue | Archives | Instructions | Subscribe | Advertise | Contact us |  Login 
Pharmacognosy Magazine
Search Article 
Advanced search 
Year : 2020  |  Volume : 16  |  Issue : 70  |  Page : 300-307

Portulaca oleracea exposed to polycyclic aromatic hydrocarbon pollution: Mapping down nutraceutical and histochemical changes

Department of Pharmacognosy, Institute of Pharmacy, Guru Ghasidas Central University, Bilaspur, Chhattisgarh, India

Correspondence Address:
Vivekananda Mandal
Institute of Pharmacy, Guru Ghasidas Central University, Bilaspur - 495 009, Chhattisgarh
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/pm.pm_15_20

Rights and Permissions

Aim: Polycyclic aromatic hydrocarbons (PAHs) are extremely carcinogenic environmental pollutants which have now become a global environmental problem. Such pollutants can accumulate in soil and can adversely affect the growth and physiology of plants. The current study aims to investigate the effect of such pollutants on the plants secondary metabolism with special emphasis on the production of nutraceutical principles. Materials and Methods: A well-known dietary plant Portulaca oleracea was collected from agricultural land in close vicinity to thermal power units, and results were compared to a background sample. Pigment estimation, evaluation of total phenolics/flavonoids, and Non-enzymatic antioxidant principles, namely ascorbic acid and α-tocopherol were carried out. Primary metabolites, such as total proteins and carbohydrates, were also estimated. The identification of individual phenolic and flavonoid principles were also carried out. Results were supported with real-time histochemical evidence and scanning electron microscopy (SEM) studies. Results: Chlorophyll a showed a significant reduction of 40.85% when compared to control and so was the case with β-carotene, which recorded a decline of 33.5% when compared to control. Total phenolics and flavonoids, ascorbic acid, and α-toopherol showed a decline of 42.25%, 28.17%, 45.5%, and 81.9%, respectively, when compared to control. Gallic acid, p-coumaric acid, ferulic acid, naringenin, quercetin, ellagic acid, and rutin were found to be significantly lesser in pollution exposed plants. Significant cell death was evident from histochemical studies as well, along with blockage of stomata as reflected from SEM studies. Conclusion: P. oleracea exposed to PAH pollution showed a significant decline in the production of phytochemicals with special emphasis on nutraceutical contents.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded202    
    Comments [Add]    

Recommend this journal