Chemical Composition and Antibacterial Activity of Essential Oil from the Leaves ofAframomum melegueta(Roscoe) K. Schum from Nigeria

Abstract

The essential oil obtained by hydrodistillation from the dry leaves of Aframomum melegueta was analyzed by GC and GC-MS. Twenty-six components representing 92.5 % of the oil were identified. The major constituents were sabinene (35.9 %), α-pinene (15.0 %) and β-caryophyllene (9.7 %). The in vitro antibacterial activity of the oil was assayed against twelve microorganisms using agar-disc diffusion and brothmicrodilution methods. The oil exhibited significant inhibition on the growth of Bacillus cereus, Staphylococcus aureus, Streptococcus faecalis and Escherichia coli with zones of inhibition and MIC values ranging from (6.3-19.3) mm and (0.2-10.0) mg/ml, respectively.

Essential Oil Compositions of Aframomum danielli Seed (Ataiko)

“…The genus Aframomum, a perennial plant belongs to the Zingiberaceae family, consisting of approximately fifty species are widespread in humid forest regions of West and Central Africa [6]. When any part of the plant is pulverized an aromatic flavour exudes [7]. More than 23 species have been identified in Cameroon in South-West, South, North-West, West and Central regions [6].…”

“…The seed essential oil composition of A. danielli from Cameroon, Nigeria and S. Tome has been reported [10,11,12]. Similarly, volatile constituents of other Aframomum species grown in some regions of West and East Africa have been investigated [13,8,14,15,16,17,7]. There is a dearth of data on the volatile oil composition of Aframomum danielli seed from South-South region of Nigeria as only one study exists in the published literature on characterization and antioxidant activity of volatile constituents of the seed of Aframomum danielli from this region [18].…”

Proximate, Antinutrient and Mineral Contents of Aframomum danielli (Ataiko) Seed

“…The distinguishing feature of this genus is the attribute of highly pungent and aromatic seeds. All the plant parts also exude a strong aroma when pulverized [17]. Aframomum danielli is a herb with a creeping rhizome found in the region of Niger Delta.…”

Characterization and Antioxidant Activity of Volatile Constituents from Different Parts of Aframomum danielli (Hook) K. Schum

“…The seed essential oil composition of A. danielli from Cameroon, Nigeria and S. Tome has been reported [ 4 , 5 , 6 ]. Similarly, volatile constituents of other Aframomum species grown in some regions of West and East Africa have been investigated [ 7 , 8 , 9 , 10 , 11 , 12 , 13 ].…”

“…Some biological activities such as antiprotozoal, antibacterial, anti-inflammatory and antioxidant activities have been documented for a number of Aframomum species [ 12 , 13 , 14 , 15 , 16 ]. However, there is a paucity of data on the volatile oil composition of other aromatic parts of Aframomum danielli , other than the seed oils earlier reported.…”