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Table 4 Quantitative estimation of phytochemicals from various parts of wild and in vitro raised D. bulbibera (%)

From: Development of an efficient micropropagation system for Dioscorea bulbifera L. and phytochemical profile of regenerated plants

Phytochemical Wild Micropropagated
Leaf Stem Tuber Leaf Stem Tuber
Carbohydrates 35.31 ± 0.22 32.06 ± 0.03 23.11 ± 0.08 19.07 ± 0.08 45.22 ± 0.06 28.10 ± 0.12
Total sugars 18.64 ± 0.32 12.01 ± 0.06 4.92 ± 0.02 8.98 ± 0.04 20.56 ± 0.32 16.97 ± 0.16
Free sugars 2.65 ± 0.03 2.06 ± 0.04 1.93 ± 0.02 1.82 ± 0.03 3.14 ± 0.03 2.35 ± 0.03
Starch 1.34 ± 0.03 0.86 ± 0.05 0.77 ± 0.01 1.22 ± 0.02 1.30 ± 0.02 1.19 ± 0.02
Protein 6.29 ± 0.03 5.09 ± 0.04 4.15 ± 0.04 4.06 ± 0.04 6.28 ± 0.01 5.43 ± 0.02
Lipid (Oil) 5.07 ± 0.04 4.50 ± 0.01 1.30 ± 0.02 3.52 ± 0.04 4.60 ± 0.03 2.50 ± 0.05
Phenolic compounds 0.008 ± 0.0002 0.013 ± 0.0001 0.002 ± 0.00 0.031 ± 0.0005 0.001 ± 0.00 0.013 ± 0.0001
Tannins 0.07 ± 0.001 0.01 ± 0.001 0.08 ± 0.002 0.09 ± 0.003 0.04 ± 0.002 0.08 ± 0.003
Flavonoids 0.008 ± 0.0002 0.027 ± 0.0004 0.002 ± 0.00 0.016 ± 0.0002 0.011 ± 0.0001 0.001 ± 0.00
Alkaloids 6.15 ± 0.03 7.13 ± 0.02 8.04 ± 0.04 5.04 ± 0.03 7.55 ± 0.04 8.37 ± 0.09
Saponins 0.58 ± 0.01 0.46 ± 0.01 0.35 ± 0.01 0.61 ± 0.02 0.52 ± 0.02 0.41 ± 0.01
  1. Results are mean values ± standard error