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

The performance of Nata de coco (NDC) and Calcium alginate (CA) as an immobilization medium for Saccharomyces cerevisiae cells are compared in terms of production rate and conversion. S. cerevisiae cells are immobilized in NDC and CA beads using a cell suspension with an average approximate live cell density of 232.1 ± 1.5 cells/mL. The biocatalysts NDC and CA are charged into horizontal fermentation reactors. A centrifugal pump and manifold is used to control the flow rate to a desired flow rate of 9 mL/hr. Samples are collected every 12 hours and tested for ethanol by gas chromatography and glucose concentration by colorimetry. The average effluent ethanol concentration, productivity, conversion and yield during continuous fermentation in NDC are 5.093 % by volume, 52.329 mL/hr, 0.7779 and 0.7620, respectively. One-way ANOVA showed that the immobilization medium has no significant effect on the parameters under consideration i.e. the effluent ethanol concentration, productivity yield and conversion of NDC and CA immobilized cells are statistically equal. The study showed that the NDC biocatalyst performs equally well in the conditions optimized for CA biocatalyst. The structural strength and cost effectiveness of Nata de Coco makes it a very promising immobilization medium for continuous bioethanol production.

international journal of chemical engineering and applications

A Comparison between the Performance of S. Cerevisiae Cells Immobilized in Nata de Coco Biocellulose and Calcium Alginate during Continuous Bioethanol Production