English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We evaluated the bioflocculant production by Virgibacillus species isolated from a marine environment in the Eastern Cape Province of South Africa. Culture conditions for optimal production of the bioflocculant included: glucose as sole carbon source (flocculating activity 91.8%); complex nitrogen source (urea + yeast extract + (NH4)2SO4); inoculum size of 2% (v/v); initial pH 10; and calcium as mediating factor. Optimum dose of the purified bioflocculant for the clarification of 4 g/l kaolin clay suspension at neutral pH was 0.3 mg/ml. Chemical analysis of the purified bioflocculant revealed it to be mainly composed of uronic acids (87% w/w). Scanning electron microscopic observations were indicative of a porous bioflocculant structure. Fourier transform infrared (FTIR) spectrum revealed the presence of carboxyl and hydroxyl groups whilst the themogravimetric analysis (TGA) showed degradation temperature (Td) of 150°C. The bioflocculant appears to hold promise in vast biotechnological applications in a more environmentally friendly and economical manner.

Characterization of a thermostable polysaccharide bioflocculant produced by Virgibacillus species isolated from Algoa bay