Lactic acid is a significant chemical for the food industry. Fermentative lactic acid production on wastes could significantly improve the economy and sustainability of the process. In this study, lactic acid production was performed by L. rhamnosus ATCC 7469 on a stillage from bioethanol production on waste bread. Under optimal conditions, in fed-batch fermentation lactic acid productivity of 1.80 g L-1 h-1 has been achieved with a cell number of above 109 CFU mL-1. L. rhamnosus has shown high survival rate of over 85% in the presence of beef bile and at low pH value of MRS broth. The residuals after the fermentation were chemically analyzed and their composition corresponded well with the values recommended for the feed. The digestible energy was 17452.25 kJ kg-1, while metabolisable energy was 17360.83 kJ kg-1. The high values of energy parameters indicated that an integrated process for lactic acid and feedstuff production could be a good strategy.
Mlečna kiselina je važna supstanca za prehrambenu industriju. Proizvodnja mlečne kiseline fermentacijom na otpadnim sirovinama može značajno da poveća ekonomičnost i održivost procesa. U ovom radu je ispitivana proizvodnja mlečne kiseline pomoću L. rhamnosus ATCC 7469 na džibri iz proizvodnje bioetanola na otpadnom hlebu. Pod optimalnim uslovima, u dolivnom postupku je postignuta produktivnost mlečne kiseline od 1.80 g L-1 h-1 sa više od 109 CFU mL-1 bakterija. L. rhamnosus je pokazao visok stepen preživljavanja od preko 85% u prisustvu žučnih soli i pri niskoj pH vrednosti MRS bujona. Ostatak nakon mlečno-kiselinske fermentacije džibre je hemijski analiziran i pokazano je da dobijene vrednosti odgovaraju preporučenim. Svarljiva energija je iznosila 17452,25 kJ kg-1, dok je metabolička energija bila 17360,83 kJ kg-1. Visoke vrednosti energetskih parametara hraniva ukazuju da integrisani proces proizvodnje mlečne kiseline i stočne hrane na džibri predstavlja povoljnu strategiju.
TY - JOUR
AU - Djukić-Vuković, Aleksandra
AU - Mojović, Ljiljana
AU - Nikolić, Valentina
AU - Radosavljević, Milica
AU - Terzić, Dušanka
AU - Nikolić, Svetlana
AU - Pejin, Jelena
PY - 2013
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2277
AB - Lactic acid is a significant chemical for the food industry. Fermentative lactic acid production on wastes could significantly improve the economy and sustainability of the process. In this study, lactic acid production was performed by L. rhamnosus ATCC 7469 on a stillage from bioethanol production on waste bread. Under optimal conditions, in fed-batch fermentation lactic acid productivity of 1.80 g L-1 h-1 has been achieved with a cell number of above 109 CFU mL-1. L. rhamnosus has shown high survival rate of over 85% in the presence of beef bile and at low pH value of MRS broth. The residuals after the fermentation were chemically analyzed and their composition corresponded well with the values recommended for the feed. The digestible energy was 17452.25 kJ kg-1, while metabolisable energy was 17360.83 kJ kg-1. The high values of energy parameters indicated that an integrated process for lactic acid and feedstuff production could be a good strategy.
AB - Mlečna kiselina je važna supstanca za prehrambenu industriju. Proizvodnja mlečne kiseline fermentacijom na otpadnim sirovinama može značajno da poveća ekonomičnost i održivost procesa. U ovom radu je ispitivana proizvodnja mlečne kiseline pomoću L. rhamnosus ATCC 7469 na džibri iz proizvodnje bioetanola na otpadnom hlebu. Pod optimalnim uslovima, u dolivnom postupku je postignuta produktivnost mlečne kiseline od 1.80 g L-1 h-1 sa više od 109 CFU mL-1 bakterija. L. rhamnosus je pokazao visok stepen preživljavanja od preko 85% u prisustvu žučnih soli i pri niskoj pH vrednosti MRS bujona. Ostatak nakon mlečno-kiselinske fermentacije džibre je hemijski analiziran i pokazano je da dobijene vrednosti odgovaraju preporučenim. Svarljiva energija je iznosila 17452,25 kJ kg-1, dok je metabolička energija bila 17360,83 kJ kg-1. Visoke vrednosti energetskih parametara hraniva ukazuju da integrisani proces proizvodnje mlečne kiseline i stočne hrane na džibri predstavlja povoljnu strategiju.
PB - Nacionalno društvo za procesnu tehniku i energetiku u poljoprivredi, Novi Sad
T2 - Journal on Processing and Energy in Agriculture
T1 - Evaluation of the residue of lactic acid fermentation on stillage as an animal feed
T1 - Ispitivanje kvaliteta džibre nakon mlečno-kiselinske fermentacije kao hrane za životinje
EP - 67
IS - 2
SP - 64
VL - 17
UR - https://hdl.handle.net/21.15107/rcub_technorep_2277
ER -
@article{
author = "Djukić-Vuković, Aleksandra and Mojović, Ljiljana and Nikolić, Valentina and Radosavljević, Milica and Terzić, Dušanka and Nikolić, Svetlana and Pejin, Jelena",
year = "2013",
abstract = "Lactic acid is a significant chemical for the food industry. Fermentative lactic acid production on wastes could significantly improve the economy and sustainability of the process. In this study, lactic acid production was performed by L. rhamnosus ATCC 7469 on a stillage from bioethanol production on waste bread. Under optimal conditions, in fed-batch fermentation lactic acid productivity of 1.80 g L-1 h-1 has been achieved with a cell number of above 109 CFU mL-1. L. rhamnosus has shown high survival rate of over 85% in the presence of beef bile and at low pH value of MRS broth. The residuals after the fermentation were chemically analyzed and their composition corresponded well with the values recommended for the feed. The digestible energy was 17452.25 kJ kg-1, while metabolisable energy was 17360.83 kJ kg-1. The high values of energy parameters indicated that an integrated process for lactic acid and feedstuff production could be a good strategy., Mlečna kiselina je važna supstanca za prehrambenu industriju. Proizvodnja mlečne kiseline fermentacijom na otpadnim sirovinama može značajno da poveća ekonomičnost i održivost procesa. U ovom radu je ispitivana proizvodnja mlečne kiseline pomoću L. rhamnosus ATCC 7469 na džibri iz proizvodnje bioetanola na otpadnom hlebu. Pod optimalnim uslovima, u dolivnom postupku je postignuta produktivnost mlečne kiseline od 1.80 g L-1 h-1 sa više od 109 CFU mL-1 bakterija. L. rhamnosus je pokazao visok stepen preživljavanja od preko 85% u prisustvu žučnih soli i pri niskoj pH vrednosti MRS bujona. Ostatak nakon mlečno-kiselinske fermentacije džibre je hemijski analiziran i pokazano je da dobijene vrednosti odgovaraju preporučenim. Svarljiva energija je iznosila 17452,25 kJ kg-1, dok je metabolička energija bila 17360,83 kJ kg-1. Visoke vrednosti energetskih parametara hraniva ukazuju da integrisani proces proizvodnje mlečne kiseline i stočne hrane na džibri predstavlja povoljnu strategiju.",
publisher = "Nacionalno društvo za procesnu tehniku i energetiku u poljoprivredi, Novi Sad",
journal = "Journal on Processing and Energy in Agriculture",
title = "Evaluation of the residue of lactic acid fermentation on stillage as an animal feed, Ispitivanje kvaliteta džibre nakon mlečno-kiselinske fermentacije kao hrane za životinje",
pages = "67-64",
number = "2",
volume = "17",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2277"
}
Djukić-Vuković, A., Mojović, L., Nikolić, V., Radosavljević, M., Terzić, D., Nikolić, S.,& Pejin, J.. (2013). Evaluation of the residue of lactic acid fermentation on stillage as an animal feed. in Journal on Processing and Energy in Agriculture
Nacionalno društvo za procesnu tehniku i energetiku u poljoprivredi, Novi Sad., 17(2), 64-67.
https://hdl.handle.net/21.15107/rcub_technorep_2277
Djukić-Vuković A, Mojović L, Nikolić V, Radosavljević M, Terzić D, Nikolić S, Pejin J. Evaluation of the residue of lactic acid fermentation on stillage as an animal feed. in Journal on Processing and Energy in Agriculture. 2013;17(2):64-67.
https://hdl.handle.net/21.15107/rcub_technorep_2277 .
Djukić-Vuković, Aleksandra, Mojović, Ljiljana, Nikolić, Valentina, Radosavljević, Milica, Terzić, Dušanka, Nikolić, Svetlana, Pejin, Jelena, "Evaluation of the residue of lactic acid fermentation on stillage as an animal feed" in Journal on Processing and Energy in Agriculture, 17, no. 2 (2013):64-67,
https://hdl.handle.net/21.15107/rcub_technorep_2277 .
