Progressive Horticulture
  • Year: 2020
  • Volume: 52
  • Issue: 1

Elemental composition of edible lichen Parmotrema tinctorum (Nyl.) Hale (Parmeliaceae) from Wayanad

1Department of Post Harvest Technology, College of Horticulture, Kerala Agricultural University, Vellanikkara, Thrissur

2Krishi Vigyan Kendra, Thrissur, Kerala Agricultural University, Thrissur-680656, India

3All India Co-ordinated Research Project on Floriculture, College of Horticulture, Kerala Agricultural University, Vellanikkara, Thrissur-680656

*E-mail : anupama.tv@kau.in

Online published on 6 October, 2020.

Abstract

In The Present Paper, mineral composition of edible lichen viz. Parmotrema tinctorum (Nyl.) Hale (Parmeliaceae) from the hill areas of Wayanad, Kerala was evaluated. the content of sixteen elements, viz., calcium, magnesium, iron, copper, zinc, manganese, chromium, nickel, molybdenum, cobalt, aluminium, vanadium, phosphorus, arsenic, lead and cadmium was estimated by Inductively Coupled Plasma Optical Emission Spectrometry (ICP OES) after microwave assisted acid digestion. Potassium and sodium content were detected by flame photometry. Parmotrema tinctorum is found to contain appreciably higher quantities of calcium, magnesium, iron, and potassium. the heavy metals, viz., arsenic, lead and cadmium were below the permissible limits. Mineral analysis of lichen Parmotrema tinctorum proves the nutritional benefits of this lichen.

Keywords

Elemental composition, ICP OES, Lichen, Wayanad, Parmotrema tinctorum