Planta Med 2011; 77 - PF13
DOI: 10.1055/s-0031-1282401

Effect of drying methods on the antioxidant activity of Anacardium occidentale L. (Cashew)

YS Jaiswal 1, PA Tatke 1, SY Gabhe 1, AB Vaidya 2
  • 1Department of Pharmaceutical Chemistry, C.U. Shah College of Pharmacy, S.N.D.T Women's University, Mumbai- 400 049, India.
  • 2I.C.M.R. Centre of Reverse Pharmacology in Traditional Medicines, Kasturba Health Society, Vile Parle-(w), Mumbai- 400 056, India.

Studies on the drying characteristics of Cashew leaves are scarce in the literature; particularly the traditional sun drying properties as well as oven drying properties of plants are not adequately investigated. The aim of the work was to determine the sun, oven, shade dried and fresh leaves drying characteristics of Cashew and to compare the effect of the same on the antioxidant property of the extracts.

The extracts of leaves exposed to various drying conditions were prepared using various solvents. The phytochemical tests were carried out for various extracts prepared in order to ascertain the presence/absence of various phytoconstituents. The effect of drying conditions on the antioxidant activity of the extracts, the extracts were evaluated for their antioxidant effect by DPPH. Assay, Greiss assay and determination of total phenol content.

The Phytochemical investigations of the extracts revealed the presence of tannins and phenolics, saponins, flavonoids, alkaloids, steroids and sugars.

From the results obtained, it was observed that shade dried leaves contained the maximum content of polyphenols. And the order of content to polyphenol was found to be Sun Dried leaves> Fresh Leaves > Oven Dried leaves > Shade dried leaves.

Acknowledgement: The authors thank ICMR, New Delhi, India for funding the research project.

References: 1. Chang SS, Ostric-Manjasevic B, Hsieh OL, Huang CL (1977)J Food Sci 42: 1102–6.

2. Yağcıoğlu A, Değirmencioğlu A, Cağatay F (1999) Drying characteristics of

laurel leaves under different drying conditions. In: Bascetincelik A, editor. Proceeding of

the 7th international congress on agricultural mechanization and energy in agriculture,

26–27 May, Adana, Turkey. Faculty of Agriculture, Cukurova University.