Wastes from bioethanol and beer productions as substrates for L(+) lactic acid production - A comparative
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2016
Authors
Đukić-Vuković, AleksandraMladenović, Dragana
Radosavljević, Miloš
Kocić-Tanackov, Sunčica
Pejin, Jelena
Mojović, Ljiljana
Article (Published version)
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Waste substrates from bioethanol and beer productions are cheap, abundant and renewable substrates for biorefinery production of lactic acid (LA) and variability in their chemical composition presents a challenge in their valorisation. Three types of waste substrates, wasted bread and wasted potato stillage from bioethanol production and brewers' spent grain hydrolysate from beer production were studied as substrates for the production of L(+) LA and probiotic biomass by Lactobacillus rhamnosus ATCC 7469. The correlation of the content of free alpha amino nitrogen and the production of LA was determined as a critical characteristic of the waste media for efficient LA production by L. rhamnosus on the substrates which contained equal amount of fermentable sugars. A maximal LA productivity of 1.54 g L-1 h(-1) was obtained on wasted bread stillage media, whilst maximal productivities achieved on the potato stillage and brewers' spent grain hydrolysate media were 1.28 g L-1 h(-1) and 0.48 ...g L-1 h(-1), respectively. A highest LA yield of 0.91 g g(-1) was achieved on wasted bread stillage media, followed by the yield of 0.81 g g(-1) on wasted potato stillage and 0.34 g g(-1) on brewers' spent grain hydrolysate media. The kinetics of sugar consumption in the two stillage substrates were similar while the sugar conversion in brewers' spent grain hydrolysate was slower and less efficient due to significantly lower content of free alpha amino nitrogen. The lignocellulosic hydrolysate from beer production required additional supplementation with nitrogen.
Keywords:
Lactic acid / Biorefinery / Stillage / Brewers' spent grains / Probiotics / Free alpha amino nitrogenSource:
Waste Management, 2016, 48, 478-482Publisher:
- Pergamon-Elsevier Science Ltd, Oxford
Funding / projects:
- Production of lactic acid and probiotics on waste products of food and agricultural industry (RS-MESTD-Technological Development (TD or TR)-31017)
DOI: 10.1016/j.wasman.2015.11.031
ISSN: 0956-053X
PubMed: 26639411
WoS: 000368563500054
Scopus: 2-s2.0-84952989599
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Tehnološko-metalurški fakultetTY - JOUR AU - Đukić-Vuković, Aleksandra AU - Mladenović, Dragana AU - Radosavljević, Miloš AU - Kocić-Tanackov, Sunčica AU - Pejin, Jelena AU - Mojović, Ljiljana PY - 2016 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3379 AB - Waste substrates from bioethanol and beer productions are cheap, abundant and renewable substrates for biorefinery production of lactic acid (LA) and variability in their chemical composition presents a challenge in their valorisation. Three types of waste substrates, wasted bread and wasted potato stillage from bioethanol production and brewers' spent grain hydrolysate from beer production were studied as substrates for the production of L(+) LA and probiotic biomass by Lactobacillus rhamnosus ATCC 7469. The correlation of the content of free alpha amino nitrogen and the production of LA was determined as a critical characteristic of the waste media for efficient LA production by L. rhamnosus on the substrates which contained equal amount of fermentable sugars. A maximal LA productivity of 1.54 g L-1 h(-1) was obtained on wasted bread stillage media, whilst maximal productivities achieved on the potato stillage and brewers' spent grain hydrolysate media were 1.28 g L-1 h(-1) and 0.48 g L-1 h(-1), respectively. A highest LA yield of 0.91 g g(-1) was achieved on wasted bread stillage media, followed by the yield of 0.81 g g(-1) on wasted potato stillage and 0.34 g g(-1) on brewers' spent grain hydrolysate media. The kinetics of sugar consumption in the two stillage substrates were similar while the sugar conversion in brewers' spent grain hydrolysate was slower and less efficient due to significantly lower content of free alpha amino nitrogen. The lignocellulosic hydrolysate from beer production required additional supplementation with nitrogen. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Waste Management T1 - Wastes from bioethanol and beer productions as substrates for L(+) lactic acid production - A comparative EP - 482 SP - 478 VL - 48 DO - 10.1016/j.wasman.2015.11.031 ER -
@article{ author = "Đukić-Vuković, Aleksandra and Mladenović, Dragana and Radosavljević, Miloš and Kocić-Tanackov, Sunčica and Pejin, Jelena and Mojović, Ljiljana", year = "2016", abstract = "Waste substrates from bioethanol and beer productions are cheap, abundant and renewable substrates for biorefinery production of lactic acid (LA) and variability in their chemical composition presents a challenge in their valorisation. Three types of waste substrates, wasted bread and wasted potato stillage from bioethanol production and brewers' spent grain hydrolysate from beer production were studied as substrates for the production of L(+) LA and probiotic biomass by Lactobacillus rhamnosus ATCC 7469. The correlation of the content of free alpha amino nitrogen and the production of LA was determined as a critical characteristic of the waste media for efficient LA production by L. rhamnosus on the substrates which contained equal amount of fermentable sugars. A maximal LA productivity of 1.54 g L-1 h(-1) was obtained on wasted bread stillage media, whilst maximal productivities achieved on the potato stillage and brewers' spent grain hydrolysate media were 1.28 g L-1 h(-1) and 0.48 g L-1 h(-1), respectively. A highest LA yield of 0.91 g g(-1) was achieved on wasted bread stillage media, followed by the yield of 0.81 g g(-1) on wasted potato stillage and 0.34 g g(-1) on brewers' spent grain hydrolysate media. The kinetics of sugar consumption in the two stillage substrates were similar while the sugar conversion in brewers' spent grain hydrolysate was slower and less efficient due to significantly lower content of free alpha amino nitrogen. The lignocellulosic hydrolysate from beer production required additional supplementation with nitrogen.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Waste Management", title = "Wastes from bioethanol and beer productions as substrates for L(+) lactic acid production - A comparative", pages = "482-478", volume = "48", doi = "10.1016/j.wasman.2015.11.031" }
Đukić-Vuković, A., Mladenović, D., Radosavljević, M., Kocić-Tanackov, S., Pejin, J.,& Mojović, L.. (2016). Wastes from bioethanol and beer productions as substrates for L(+) lactic acid production - A comparative. in Waste Management Pergamon-Elsevier Science Ltd, Oxford., 48, 478-482. https://doi.org/10.1016/j.wasman.2015.11.031
Đukić-Vuković A, Mladenović D, Radosavljević M, Kocić-Tanackov S, Pejin J, Mojović L. Wastes from bioethanol and beer productions as substrates for L(+) lactic acid production - A comparative. in Waste Management. 2016;48:478-482. doi:10.1016/j.wasman.2015.11.031 .
Đukić-Vuković, Aleksandra, Mladenović, Dragana, Radosavljević, Miloš, Kocić-Tanackov, Sunčica, Pejin, Jelena, Mojović, Ljiljana, "Wastes from bioethanol and beer productions as substrates for L(+) lactic acid production - A comparative" in Waste Management, 48 (2016):478-482, https://doi.org/10.1016/j.wasman.2015.11.031 . .