Fermentative utilization of coffee mucilage using Bacillus coagulans and investigation of down-stream processing of fermentation broth for optically pure L(+)-lactic acid production

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Fermentative utilization of coffee mucilage using Bacillus coagulans and investigation of down-stream processing of fermentation broth for optically pure L(+)-lactic acid production. / Neu, Anna-Katrin; Pleissner, Daniel; Mehlmann, Kerstin et al.
In: Bioresource Technology, Vol. 211, No. Juli, 01.07.2016, p. 398-405.

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@article{dbe52ee0cbf041a8b5e707ad500be2dd,
title = "Fermentative utilization of coffee mucilage using Bacillus coagulans and investigation of down-stream processing of fermentation broth for optically pure L(+)-lactic acid production",
abstract = "In this study, mucilage, a residue from coffee production, was investigated as substrate in fermentative l(+)-lactic acid production. Mucilage was provided as liquid suspension consisting glucose, galactose, fructose, xylose and sucrose as free sugars (up to 60 g L−1), and used directly as medium in Bacillus coagulans batch fermentations carried out at 2 and 50 L scales. Using mucilage and 5 g L−1 yeast extract as additional nitrogen source, more than 40 g L−1 lactic acid was obtained. Productivity and yield were 4–5 g L−1 h−1 and 0.70–0.77 g lactic acid per g of free sugars, respectively, irrespective the scale. Similar yield was found when no yeast extract was supplied, the productivity, however, was 1.5 g L−1 h−1. Down-stream processing of culture broth, including filtration, electrodialysis, ion exchange chromatography and distillation, resulted in a pure lactic acid formulation containing 930 g L−1 l(+)-lactic acid. Optical purity was 99.8%.",
keywords = "Bacillus coagulans, Nutrient recovery, Renewable resources, Coffee mucilage, Waste utilization, Chemistry",
author = "Anna-Katrin Neu and Daniel Pleissner and Kerstin Mehlmann and Roland Schneider and Puerta-Quintero, {Gloria Ines} and Joachim Venus",
year = "2016",
month = jul,
day = "1",
doi = "10.1016/j.biortech.2016.03.122",
language = "English",
volume = "211",
pages = "398--405",
journal = "Bioresource Technology",
issn = "0960-8524",
publisher = "Elsevier Limited",
number = "Juli",

}

RIS

TY - JOUR

T1 - Fermentative utilization of coffee mucilage using Bacillus coagulans and investigation of down-stream processing of fermentation broth for optically pure L(+)-lactic acid production

AU - Neu, Anna-Katrin

AU - Pleissner, Daniel

AU - Mehlmann, Kerstin

AU - Schneider, Roland

AU - Puerta-Quintero, Gloria Ines

AU - Venus, Joachim

PY - 2016/7/1

Y1 - 2016/7/1

N2 - In this study, mucilage, a residue from coffee production, was investigated as substrate in fermentative l(+)-lactic acid production. Mucilage was provided as liquid suspension consisting glucose, galactose, fructose, xylose and sucrose as free sugars (up to 60 g L−1), and used directly as medium in Bacillus coagulans batch fermentations carried out at 2 and 50 L scales. Using mucilage and 5 g L−1 yeast extract as additional nitrogen source, more than 40 g L−1 lactic acid was obtained. Productivity and yield were 4–5 g L−1 h−1 and 0.70–0.77 g lactic acid per g of free sugars, respectively, irrespective the scale. Similar yield was found when no yeast extract was supplied, the productivity, however, was 1.5 g L−1 h−1. Down-stream processing of culture broth, including filtration, electrodialysis, ion exchange chromatography and distillation, resulted in a pure lactic acid formulation containing 930 g L−1 l(+)-lactic acid. Optical purity was 99.8%.

AB - In this study, mucilage, a residue from coffee production, was investigated as substrate in fermentative l(+)-lactic acid production. Mucilage was provided as liquid suspension consisting glucose, galactose, fructose, xylose and sucrose as free sugars (up to 60 g L−1), and used directly as medium in Bacillus coagulans batch fermentations carried out at 2 and 50 L scales. Using mucilage and 5 g L−1 yeast extract as additional nitrogen source, more than 40 g L−1 lactic acid was obtained. Productivity and yield were 4–5 g L−1 h−1 and 0.70–0.77 g lactic acid per g of free sugars, respectively, irrespective the scale. Similar yield was found when no yeast extract was supplied, the productivity, however, was 1.5 g L−1 h−1. Down-stream processing of culture broth, including filtration, electrodialysis, ion exchange chromatography and distillation, resulted in a pure lactic acid formulation containing 930 g L−1 l(+)-lactic acid. Optical purity was 99.8%.

KW - Bacillus coagulans

KW - Nutrient recovery

KW - Renewable resources

KW - Coffee mucilage

KW - Waste utilization

KW - Chemistry

UR - http://www.scopus.com/inward/record.url?scp=84961675379&partnerID=8YFLogxK

U2 - 10.1016/j.biortech.2016.03.122

DO - 10.1016/j.biortech.2016.03.122

M3 - Journal articles

C2 - 27035470

VL - 211

SP - 398

EP - 405

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

IS - Juli

ER -