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Table 2 Bioactive substances and specific and total polyphenols (equivalent gallic acid per g of leaves) in leaves of MU and MI

From: Comparative study of the methane production based on the chemical compositions of Mangifera Indica and Manihot Utilissima leaves

Components Leaves
  MU* MI*
Saponins ++ +
Flavonoids - +
Alkaloids - -
Anthraquinones (bound quinones) - +
Catechic tannins + ++
Gallic tannins - +
Anthocyanins - -
Leuco-anthocyanins - -
Total polyphenols (mg/g DW) 2.0 20.0
Gallic acids (mg/g DW) 0.0  5.8
Hydroxytyrosol (mg/g DW) 0.0  0.6
Pyrogallol (mg/g DW) 0.0  9.2
Pyroctechol (mg/g DW) 0.0  0.4
Oleuropeine (mg/g DW) 0.0  0.0
  1. *- : absence; +: presence; ++: considerable presence.