Macro-microscopy and HPTLC Atlas of Heartwood of Erythroxylum monogynum Roxb. (Indian Bastard Sandalwood)

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Abstract
Pharmacognosy Research,2023,15,1,176-183.
Published:December 2022
Type:Original Article
Authors:
Author(s) affiliations:

Susikumar Sundharamoorthy1, Sunil Kumar Koppala Narayana1, Madhavaraj Vellaiyan1, Shakila Ramachandran2, Sekar Thangavel3, Ilavarasan Raju1,*

1Captain Srinivasa Murthy Central Ayurveda Research Institute, (Recognized by University of Madras), Central Council for Research in Ayurvedic Sciences, Ministry of AYUSH, Arumbakkam, Chennai, Tamil Nadu, INDIA.

2Department of Chemistry, Siddha Central Research Institute, Central Council for Research in Siddha, Ministry of AYUSH, Government of India, A. A. Hospital Campus, Arumbakkam, Chennai, Tamil Nadu, INDIA.

3Department of Environmental Science, Indira Gandhi National Tribal University (IGNTU), Annupur, Madhya Pradesh, INDIA.

Abstract:

Background: Erythroxylum monogynum Roxb. (Fam. Erythroxylaceae) is a tree growing up to 9 m in dry evergreen to deciduous forests, distributed in South India mainly on the Deccan plateau, up to 3000 ft. The wood oil possesses characteristic pleasant odour and a pungent taste, hence adulterated with sandalwood oil in perfumery. Traditionally wood oil is used for webbing eczema; bark and wood used for stomach ailments, as a stimulant, diaphoretic, diuretic, for dyspepsia and also for continuous fever. E. monogynum is used as adulterant in the herbal drug market for the heartwood of sandal on account of their morphological and organoleptic resemblances. Objectives: A systematic pharmacognostical study of dried stem heartwood of E. monogynum has been executed to identify the microscopical and phytochemical features. Materials and Methods: Morphology, anatomy, powder microscopy and TLC/HPTLC studies were carried out by standard Pharmacopoeial protocols. Results: Surface characters, odour, taste, arrangement of xylem elements in TS, TLS, RLS, fibres, tailed pitted vessels, tyloses, xylem rays, axial parenchyma with brownish content, tracheids, fibre tracheids, prismatic crystal, crystal fibre and oil globules were the unique diagnostic characters observed. HPTLC showed 5, 6 and 11 bands under 254 nm, 366 nm and white light (post derivatisation with vanillin-sulphuric acid) respectively. The denistogram showed 12, 10 and 13 peaks at UV 254 nm, 366 nm and 520 nm after derivatisation. Conclusion: The findings of the present study will be helpful in identification of this raw drug as a whole or as a powder.

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E. monogynum, A: Habit, B: Flower and fruiting twig.

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