Comparison of lactic acid production by L. casei in batch, fed-batch and continuous cultivation, testing the use of feather hydrolysate as a complex nitrogen source

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F20%3A43920804" target="_blank" >RIV/60461373:22330/20:43920804 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.scielo.br/pdf/babt/v63/1516-8913-babt-63-e20190151.pdf" target="_blank" >http://www.scielo.br/pdf/babt/v63/1516-8913-babt-63-e20190151.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1590/1678-4324-2020190151" target="_blank" >10.1590/1678-4324-2020190151</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of lactic acid production by L. casei in batch, fed-batch and continuous cultivation, testing the use of feather hydrolysate as a complex nitrogen source

Popis výsledku v původním jazyce

A comprehensive comparison of the main fermentation parameters, productivity, yield and final Llactic acid concentration, obtained through batch, fed-batch and continuous cultivations using Lactobacillus casei CCDM 198 and a model cultivation medium was carried out. Using this data, a pulse-feed fed-batch process was established for testing chicken feather hydrolysate as a replacement for all complex nitrogen sources (yeast and beef extracts and peptone) in the medium. As comparably high values of productivity (about 4.0 g/L/h) and yield (about 98 %) were reached under all cultivation conditions, the maximum final Llactic acid concentration (116.5 g/L), as achieved through pulse-feed fed-batch fermentation, was chosen as the most important criterion for process selection. Fed-batch cultivation with chicken feather hydrolysate as both a complex nitrogen source and a neutralizing agent for maintaining constant culture pH yielded half the concentration of L-lactic acid compared to the model medium. We demonstrate here that chicken feather hydrolysate has potential for use in the production of L-lactic acid but its utilization requires further optimization. © 2020 by the authors.

Název v anglickém jazyce

Comparison of lactic acid production by L. casei in batch, fed-batch and continuous cultivation, testing the use of feather hydrolysate as a complex nitrogen source

Popis výsledku anglicky

A comprehensive comparison of the main fermentation parameters, productivity, yield and final Llactic acid concentration, obtained through batch, fed-batch and continuous cultivations using Lactobacillus casei CCDM 198 and a model cultivation medium was carried out. Using this data, a pulse-feed fed-batch process was established for testing chicken feather hydrolysate as a replacement for all complex nitrogen sources (yeast and beef extracts and peptone) in the medium. As comparably high values of productivity (about 4.0 g/L/h) and yield (about 98 %) were reached under all cultivation conditions, the maximum final Llactic acid concentration (116.5 g/L), as achieved through pulse-feed fed-batch fermentation, was chosen as the most important criterion for process selection. Fed-batch cultivation with chicken feather hydrolysate as both a complex nitrogen source and a neutralizing agent for maintaining constant culture pH yielded half the concentration of L-lactic acid compared to the model medium. We demonstrate here that chicken feather hydrolysate has potential for use in the production of L-lactic acid but its utilization requires further optimization. © 2020 by the authors.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20903 - Bioproducts (products that are manufactured using biological material as feedstock) biomaterials, bioplastics, biofuels, bioderived bulk and fine chemicals, bio-derived novel materials

Projekt

<a href="/cs/project/LTACH17006" target="_blank" >LTACH17006: Výroba biobutanolu a kyseliny jantarové/mléčné z lignocelulózové biomasy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Brazilian Archives of Biology and Technology

ISSN

1516-8913

e-ISSN

—

Svazek periodika

63

Číslo periodika v rámci svazku

May 2020

Stát vydavatele periodika

BR - Brazilská federativní republika

Počet stran výsledku

12

Strana od-do

—

Kód UT WoS článku

000535198100001

EID výsledku v databázi Scopus

2-s2.0-85086379844