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The influence of different dissolved oxygen tension (DOT) values ranging from 5 to 35% of saturation on the production of cocoa butter equivalents and gamma-linolenic acid by Mucor circinelloides f. circinelloides CBS 108.16 was investigated in nitrogen limited, fed-batch, pH-stat cultures with acetic acid as carbon source. DOT values of 8% and 10% were optimal for crude oil and neutral lipid production...
Hillslope deposits in northern KwaZulu-Natal, South Africa are incised by gullies (dongas) which expose sequences of buried palaeosols developed within a succession of discontinuity-bounded colluvial sedimentary units. Infilled and buried palaeogully topography attests to at least four geomorphic cycles, comprising gully cut-and-fill and palaeosol formation, on hillslopes in the region during the...
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