OCCURRENCE OF CALCIUM OXALATE CRYSTALS IN THE LEAVES OF MEDICINAL PLANTS
Journal Title: International Journal of Pharmacognosy - Year 2014, Vol 1, Issue 6
Abstract
Calcium oxalate crystals have a definite biological function in medicinal plants and act as a good diagnostic tool for the identification and detection of adulterants in crude drugs. The occurrence of calcium oxalate crystals was evident in Moringa pterygesperma, Mentha arvensis, Cissus quadrangularis, Murraya koenigii and Amaranthus gangiticus leaves. Rosette, druse, raphides, acicular and prismatic crystals were recorded. The presence of calcium oxalate crystals was confirmed; further Cissus quadrangularis leaves had both druse and raphides belonging to type-II. Druse in Amaranthus gangiticus was the largest, measuring about 12.98-18.82 µm in length, 9.74-14.28 µm in breadth in the light microscope and 22.1 µm Scanning Electron microscopy. Mentha arvensis leaves showed acicular crystals as well as druse in the Scanning Electron Microscope observation.
Authors and Affiliations
R. Anitha et al.
Keywords
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