Background Plants are able to deliver a huge number of differing bioactive compounds which may supplement the requirements of the human body by acting as natural antioxidants. Antioxidants are mindful for the defense component of the life form against the pathologies related to the assault of free radicals. The main purpose of this study was to investigate the qualitative phytochemical composition of Vernonia amygdalina leaf extract and its antioxidant activity. Method The powdered plant sample was successively extracted with aqueous, methanol and ethanol solvents using Soxhlet apparatus. The antioxidant activities of the crude leaf extract were determined using 1, 1- diphenyl-2-picryl hydrazyl (DPPH) radical, 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radical, phosphomolybdate (PM) and hydrogen peroxide (H2O2) scavenging assay. All the examinations were drained triplicates and average values of each test were taken. Results Phytochemical investigation of the plant revealed that the three solvent extracts contained numerous bioactive compounds namely alkaloids, tannins, saponins, phenols, terpenoids, steroids, glycosides and sugars. The result showed that, the leaf extracts of V. amygdalina obtained from methanol extract exhibit the maximum antioxidant activity compared ethanol and aqueous extracts. The IC50 values of DPPH assay for the H2O, MeOH and EtOH extracts were 111.4, 94.92 and 94.83 μg/ml; of ABTS assay were 334.3, 179.8 and 256.9 μg/ml; of H2O2 assay were 141.6, 156 and 180.6 μg/ml, respectively. The maximum radical scavenging activity was obtained in DPPH assay while the lowest scavenging activity was obtained in ABTS assay method. The data obtained in the in vitro models clearly suggest that methanol extract has higher antioxidant activity due to a higher presence of phenolic constituents in the extract. Conclusion This study revealed that V. amygdalina leaf has a noteworthy antioxidant and free radical scavenging activity mitigating the traditional use of the plant for different aliments.

Meat is one of widely consumed food item in many developing countries as a source of protein. The major composition of meat are 75% of water, 19% of protein, 3.5% of soluble non protein substances and 2.5% of fat and other minor components such as vitamins, enzymes, pigments and flavor compound. The quality of meat is described in term its tenderness, pH, colour, juiciness, flavour and nutritive value. Meat is highly perishable and has a short shelf-life unless preservation methods are used. Shelf life and maintenance of the meat quality are influenced by both pre slaughter and post slaughter factors. Even though Ethiopia produced great amount of meat, most of it lost due to inappropriate post-harvest handling, processing and preservation techniques. Post mortem factor that contribute to meat quality deterioration are techniques of stunning and slaughtering, use of electrical stimulation, deboning time, chilling method, environmental temperature and postmortem ageing method. In addition to method of processing, post mortem change that occurs during conversation of muscle to meat also contribute for the post mortem quality deterioration of meat. The main objective of this is reviews focus on postmortem factor contributing to meat quality deterioration.

Ethnic politics, conceptually, entails the political orientation of employing ethnicity as a means of cooperation and conflict. Based on this concept, the study was aimed to examine actors, causes and consequences of the violation plus challenges in preserving civil rights of Amharas in Benishangul Gumuz Regional State (bgrs) of the post 1991 Ethiopia. It applied qualitative research approach. Accordingly, the research found that the major actors on the violation of civil rights of Amharas are ‘titular’ nationalities, public officials, police force and agricultural investors of bgrs. The causes for the violations of rights of Amharas are ethnic attacks and evictions. These maltreatments brought the consequence of eroding their sense of citizenship and potential of development. The challenges for protection of civil rights of Amharas are problems of controlling rulers and exclusionary constitution. Thus, it concluded that civil rights of Amharas in bgrs have no guarantee and requires immediate political solution.