Title |
Cost-effective production of bacterial cellulose using acidic food industry by-products
|
---|---|
Published in |
Brazilian Journal of Microbiology, March 2018
|
DOI | 10.1016/j.bjm.2017.12.012 |
Pubmed ID | |
Authors |
Victor Revin, Elena Liyaskina, Maria Nazarkina, Alena Bogatyreva, Mikhail Shchankin |
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 (6.19g/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 (2.14g/L). The use of whey as a nutrient medium makes it possible to obtain 5.45g/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. |
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Mendeley readers
Geographical breakdown
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Demographic breakdown
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Student > Ph. D. Student | 49 | 12% |
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Other | 64 | 16% |
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