ENGLISH ABSTRACT: Plant biomass, the most abundant renewable resource in nature, consists of matrices of mainly lignin, cellulose, hemicellulose as well as inorganic components. Xylan, the major hemicellulose component ...

ENGLISH ABSTRACT: The acidophilic, chemolithoautotrophic bacterium, Acidothiobaci/lus ferrooxidans is one of a consortium of bacteria involved in biornining, including the recovery of gold from arsenopyrite ores. The ...

ENGLISH ABSTRACT: Microorganisms play an important role in the stability and maintenance of the ecosystem and in the condition of the soil. However, in their natural environment, microorganisms often experience changing ...

ENGLISH ABSTRACT: More than sixteen isolates of iron-oxidizing bacteria belonging to the genus Leptospirillum were included in this study, with the finding that they were clearly divisible into two major groups. Group ...

ENGLISH ABSTRACT: The Rooibos tea plant (Aspalathus linearis) is indigenous to South Africa and occurs only in the Western Cape's Cedarberg region. Rooibos tea is produced from the leaves and fine stems of the plant. ...

ENGLISH ABSTRACT: Lactic acid bacteria play an essential role in the majority of fermented foods by producing organoleptic compounds and increasing the shelf life. The best-studied antimicrobial compounds are bacteriocins, ...

ENGLISH ABSTRACT: no abstract available

ENGLISH ABSTRACT: Barley malt is the predominant raw material for beer brewing world-wide. To meet consumer demand, a constant high quality malt product is required. Malt quality is determined by the degree of substrate ...

ENGLISH ABSTRACT: To remain competitive in the market place, the South African wine industry will have to direct well-planned yeast strain-development programmes. However, the winemaker can only benefit from the extensive ...

ENGLISH ABSTRACT: Wood is composed of three main components: cellulose, hemicellulose and lignin. Cellulose is the main structural polymer, whereas the function of lignin in plants is to impart rigidity to the cells, ...