Phytochemical Screening and Proximate Analysis of Newbouldia laevis and Allium sativum

Abstract

The study was conducted to assess the phytochemical and proximate composition of
Newboudia laevis leaves and Allium sativum bulb extracts. The leaves and bulbs
extracts were analyzed for their chemical composition and antinutritional factors
(ANFs) which include moisture, crude protein, crude fat, crude fiber, total ash,
carbohydrate fractions (CHO), metabolisable energy (ME),neutral detergent fiber
(NDF)and phytochemicals. The phytochemical screening revealed the presence of
flavonoids, terpenoids, tannin, alkaloids, phytic acid, trypsin inhibitor, phenols,
antioxidants, carotenoids, oxalate and cyanide in the plant and bulb extracts.The
percentages of flavonoid, terpenoid, tannin, alkaloid, phytic acid, trypsin inhibitor,
phenol, antioxidants, carotenoid, oxalate and cyanide in the Newbouldia laevis were
0.15, 2.29, 392, 2.51, 2.96, 29.20, 2.86, 1.63, 624, 0.44 and 0.01mg/100g
respectively, while that of the Allium sativum were 0.04, 0.07, 7.0, 4.59, 27.80, 0.25,
0.041, 0.23, 11.40, 9.02 and 0.685mg/100g, respectively. The percentage
composition of moisture, crude protein, crude fat, crude fiber, ash, NFE, ME and
NDF for Newbouldialaevis were 55%, 5.68%, 5.61%, 10.54%, 2.15%, 21.02%,
1626.80kcal/kg and 20.22%, while Allium sativum had 82%, 4.63%, 0%, 6.72%,
5.66%, 0.99%, 320.25kcal/kg and 0%, respectively.Therefore, it can be concluded
that Newbouldialaevis leaves and Allium sativum bulbs contain bioactive substances
beneficial to animals with antinutrient concentrations below the critical levels hence
not deleterious to ruminant animals.