Antimicrobial, Antioxidant and Phytochemical Screening of Lupin Seeds (lupinus Termis Forrsk.) from Sudan

Lupin (Lupinus termis) seeds are popularly edible and used as snacks in Sudan. The current study aimed to evaluate some biological properties of the Sudanese lupin seeds such as the phytochemical constituents, the antimicrobial and antioxidant activities. The study revealed that the methanolic extract of lupin seeds have no significant antimicrobial activity against all the tested bacteria (6 different Grampositive and Gram-negative bacteria) and fungi (2 fungal species). The Phytochemical analysis showed a presence of some bioactive secondary compounds such as alkaloids, cumarins, phytosterols and resin, the study also revealed the presence of some nutritional primary compounds such as proteins, reducing sugars and glycosides. The antioxidant testing exhibited that lupin seeds have significant antioxidant and free radical-scavenging activity. Therefore, lupin seeds could be a good source for natural antioxidant agents for medical and nutraceutical applications.