Figure 3.6
 
57
Large-Scale Production of BNC
Static Cultivation
introduction
Since. the. beginning. of. intensive. BNC. research. activities. in. the. mid-1990s,.
static. cultivation. has. been. considered. the. standard. type. of. cultivation. for.
BNC.. Based. on. various. studies,. it. has. been. shown. that. the. most. homogeneous. supramolecular. BNC. structure,. resulting. in. highly. stable. material,.
can. be. produced. with. this. method.. If. the. culture. conditions. are. changed,.
it.leads.to.drastic.and.often.negative.changes.in.the.resulting.BNC.properties..Accordingly,.this.form.of.cultivation.is.still.regarded.as.the.preferred.
manufacturing.method.to.synthesize.flat.BNC.with.excellent.and.reproducible.structures.and.properties.for.commercial.applications.
As.one.of.the.first.purchasable.products.based.on.BNC,.the.dessert.nata.de.
coco.is.well.established.in.the.Asian.food.market..It.is.usually.synthesized.by.
static.cultivation,.where.the.product.is.skimmed.in.the.form.of.sheets.from.
the.culture.medium.
In.nata.de.coco.home.industries,.plastic.vessels.are.used.(see.Figure 3.6)..
After.inoculation,.the.vessels.are.covered.and.kept.in.a.storehouse.for.8–10.
days.. For.purification,. the.bacteria.in.the.BNC.are.removed.by.immersing.
it.in.dilute.alkaline.solution.and.washing.with.water.(Budhiono.et.al..1999;.
Iguchi.2000;.Kouda.et.al..1998).
Scientific.investigations.in.the.context.of.static.cultivation.forms.of.BNC.dealt.
with.the.optimization.of.the.cultivation.conditions,.such.as.the.culture.medium,.
Figure 3.6
(See color insert.).Production.process.of.nata.de.coco.(Source:.http://www.bi.go.id/sipuk/en/).
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