Cost-effective production of bacterial cellulose using acidic food industry by-products
Braz. j. microbiol
;
49(supl.1): 151-159, 2018. tab, graf
Article
in English
| LILACS
| ID: biblio-974324
ABSTRACT
Abstract To reduce the cost of obtaining bacterial cellulose, acidic by-products of the alcohol and dairy industries were used without any pretreatment or addition of other nitrogen sources. Studies have shown that the greatest accumulation of bacterial cellulose (6.19 g/L) occurs on wheat thin stillage for 3 days of cultivation under dynamic conditions, which is almost 3 times higher than on standard Hestrin and Schramm medium (2.14 g/L). The use of whey as a nutrient medium makes it possible to obtain 5.45 g/L bacterial cellulose under similar conditions of cultivation. It is established that the pH of the medium during the growth of Gluconacetobacter sucrofermentans B-11267 depends on the feedstock used and its initial value. By culturing the bacterium on thin stillage and whey, there is a decrease in the acidity of the waste. It is shown that the infrared spectra of bacterial cellulose obtained in a variety of environments have a similar character, but we found differences in the micromorphology and crystallinity of the resulting biopolymer.
Full text:
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Index:
LILACS (Americas)
Main subject:
Waste Products
/
Industrial Microbiology
/
Cellulose
/
Gluconacetobacter
Type of study:
Health economic evaluation
Language:
English
Journal:
Braz. j. microbiol
Journal subject:
Microbiology
Year:
2018
Type:
Article
Affiliation country:
RUSSIA
Institution/Affiliation country:
National Research Mordovia State University/RU
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