Dear Mohamad, 

Attached articles can be of some help for you.

Dear Amit,

Thank you. I will look into it. ☺

For alkaloidsthe material is extracted with alcohol, solvent distilled off under reduced pressure and the residue treated with dilute inorganic acid, whereupon the bases are extracted as their  soluble salts.  The free baes are liberated by the addition of sodium carbonateand extracted with various solvents like chloroform.

Terpene are volatile low boiling compounds. The material is subjected to steam distillation and the distillate(oil)  is separated from the aqueous phase.

Dear Mohamad 

kindly, check the following article, which I hope it will be of some help. 

Anti-HIV-1 and cytotoxicity of the alkaloids of Erythrina abyssinica Lam. growing in Sudan

Article in Natural product research 26(17):1565-75 ·

Thanks

Magdy

Dear Prof. Solimabi, Thank you very much for the answer. I appreciated it so much.

Dear Prof. Magdy, thank you very much for the suggestion. I will check the article.

Regards,

Badrul