Research on the use, properties, characteristics and sources of antioxidants especially
phenolic compounds, flavonoids, vitamins, synthetic chemicals and some micronutrients began …

Heavy metal ion, pesticide and dye wastewaters cause severe ecological contamination with
conventional treatment methods proving inadequate, unsuccessful or expensive to apply. …

Ethnopharmacological relevance The use of plant species for different therapeutic/medicinal
purposes is well-entrenched in sub-Saharan Africa. Aim of the review To provide a critical …

Background Cryptococcal meningitis is a leading cause of human immunodeficiency virus (HIV)–related
death in sub-Saharan Africa. Whether a treatment regimen that includes a …

Farmers in semi-arid Zimbabwe prioritise climate variability as their major agricultural
productivity-reducing problem. This paper raises the importance of considering local farmers’ …

… Further, their specific surface area can be modulated between 50 and 500 m 2 … that the
size of the prepared carbon spheres was around 900 ± 50 nm with a BET surface area of <5 m 2 …

… Composite soil samples were taken for the top 0.20 m of each on-farm trial site in 2006 and
… Composite soil samples were taken for the top 0.20 m of each on-farm trial site in 2006 and …

Total phenolic content, proanthocyanidins, gallotannins, flavonoids, and antioxidant activities
of Sclerocarya birrea and Harpephyllum caffrum methanolic extracts were evaluated using …

… in the present research study was 250 m 2 /g and is higher than a low cost agro-based
adsorbent such as palm pith carbon (188 m 2 /g) [28] but lower than peanut hull carbon (354 m …

… The pH was adjusted using 1 M hydrochloric acid or 0.5 M sodium hydroxide solutions. …
MAC-PEI also yielded significant decreases in BET surface area and pore volume from 689 m 2 …