BioChem - DOS

Biotransformation of sweet lime pulp waste into high-quality nanocellulose with an excellent productivity using Komagataeibacter europaeus SGP37 under static intermittent fed-batch cultivation

Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies

Dubey, Swati; Singh, Jyoti; Singh, R.P.

<P><B>Abstract</B></P> <P>Herein, sweet lime pulp waste (SLPW) was utilized as a low- or no-cost feedstock for the production of bacterial nanocellulose (BNC) alone and in amalgamation with other nutritional supplements by the isolate <I>K. europaeus</I> SGP37 under static batch and static intermittent fed-batch cultivation. The highest yield (26.2&plusmn;1.50gL<SUP>&minus;1</SUP>) was obtained in the hot water extract of SLPW supplemented with the components of HS medium, which got further boosted to 38&plusmn;0.85gL<SUP>&minus;1</SUP> as the cultivation strategy was shifted from static batch to static intermittent fed-batch. BNC obtained from various SLPW medium was similar or even superior to that obtained with standard HS medium in terms of its physicochemical properties. The production yields of BNC thus obtained are significantly higher and fit well in terms of industrial scale production.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Conversion of agro-industrial waste residue into high value-added biomaterial. </LI> <LI> First study on <I>K. europaeus</I> SGP37 utilizing sweet lime pulp waste for BNC production. </LI> <LI> SLPW extracts as a sole nutrient source yielded significant amounts of BNC. </LI> <LI> Static intermittent fed-batch cultivation greatly enhanced BNC production. </LI> <LI> SLPW<SUB>E</SUB>-HS(w) under IFB-48h yielded commendable amount of BNC(&sim;38gL<SUP>&minus;1</SUP>). </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

2018

Elsevier

0960-8524

247

pp.73-80

10.1016/j.biortech.2017.09.089

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART79612512

Bacterial nanocellulose; Komagataeibacter europaeus; Sweet lime pulp waste; Static intermittent fed-batch cultivation