Table 5.
Regional variation of mahanine, mahanimbine, and koenimbine in different MEFs.
| Region of leaf collection | Yield: a gram of MEF/100 g of dry leaf | Mahanine (%) | Mahanimbine (%) | Koenimbine (%) |
|---|---|---|---|---|
| Jammu (MEFJ) | 6.4 ± 0.5 | 9.3 ± 1.6 | 27.0 ± 2.5 | 6.3 ± 1.2 |
| Bihar (MEFB) | 5.8 ± 0.2 | 2.7 ± 1.3 | 12.0 ± 1.5 | 7.3 ± 1.4 |
| Madhya Pradesh (MEFMP) | 7.2 ± 0.1 | 5.0 ± 0.9 | 8.6 ± 0.9 | 1.2 ± 0.9 |
| West Bengal (MEFWB) | 5.5 ± 0.5 | 14.0 ± 0.8 | 20.7 ± 1.2 | 11.9 ± 1.1 |
| Goa (MEFG) | 6.5 ± 0.6 | 33.0 ± 2.9 | 6.3 ± 0.9 | ND |
| Maharashtra (MEFM) | 5.9 ± 0.1 | 34.0 ± 2.7 | 10.0 ± 1.1 | ND |
| Andhra Pradesh (MEFAP) | 5.9 ± 0.25 | 23.0 ± 4.1 | 9.2 ± 0.9 | ND |
| Tamil Nadu (MEFTN) | 9.0 ± 0.7 | 43.0 ± 2.5 | 8.3 ± 1.7 | 0.8 ± 0.3 |
| Kerala (MEFK) | 8.0 ± 0.5 | 35 ± 4.0 | 6.3 ± 1.2 | ND |
The yield of all MEFs (mahanine-enriched fractions) and their markers as obtained from HPLC. ND: not detected. A representative profile of these alkaloids in leaflet collected during one year has been tabulated. These data were derived from three individual experiments, and mean ± SD was indicated.