Downstream processing of lactic acid-whey permeate fermentation broths by hollow fiber ultrafiltration

1988 ◽  
Vol 19 (1) ◽  
pp. 61-70 ◽  
Author(s):  
Süsy Tejayadi ◽  
Munir Cheryan
Keyword(s):  
Lactic Acid ◽  
Hollow Fiber ◽  
Downstream Processing ◽  
Whey Permeate ◽  
Acid Whey ◽  
Fermentation Broths

Lactic acid from acid whey permeate in a membrane recycle bioreactor

1986 ◽  
Vol 8 (5) ◽  
pp. 289-292 ◽  
Author(s):  
Mohamed A. Mehaia ◽  
Munir Cheryan
Keyword(s):  
Lactic Acid ◽  
Whey Permeate ◽  
Acid Whey

scholarly journals Membrane Technologies for Lactic Acid Separation from Fermentation Broths Derived from Renewable Resources

Membranes ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 94 ◽  
Author(s):  
Maria Alexandri ◽  
Roland Schneider ◽  
Joachim Venus
Keyword(s):  
Lactic Acid ◽  
Renewable Resources ◽  
Pilot Scale ◽  
Defined Medium ◽  
Final Concentration ◽  
Primary Separation ◽  
Average Flux ◽  
Acid Whey ◽  
Flow Flux ◽  
Fermentation Broths

Lactic acid (LA) was produced on a pilot scale using a defined medium with glucose, acid whey, sugar bread and crust bread. The fermentation broths were then subjected to micro- and nanofiltration. Microfiltration efficiently separated the microbial cells. The highest average permeate flow flux was achieved for the defined medium (263.3 L/m2/h) and the lowest for the crust bread-based medium (103.8 L/m2/h). No LA losses were observed during microfiltration of the acid whey, whilst the highest retention of LA was 21.5% for crust bread. Nanofiltration led to high rejections of residual sugars, proteins and ions (sulphate, magnesium, calcium), with a low retention of LA. Unconverted sugar rejections were 100% and 63% for crust bread and sugar bread media respectively, with corresponding LA losses of 22.4% and 2.5%. The membrane retained more than 50% of the ions and proteins present in all media and more than 60% of phosphorus. The average flux was highly affected by the nature of the medium as well as by the final concentration of LA and sugars. The results of this study indicate that micro- and nanofiltration could be industrially employed as primary separation steps for the biotechnologically produced LA.

Modelling the clarification of lactic acid fermentation broths by cross-flow microfiltration

2001 ◽  
Vol 186 (2) ◽  
pp. 219-230 ◽  
Author(s):  
Hélène Carrère ◽  
Frédéric Blaszkow ◽  
Hélène Roux de Balmann
Keyword(s):  
Lactic Acid ◽  
Cross Flow ◽  
Lactic Acid Fermentation ◽  
Acid Fermentation ◽  
Fermentation Broths

scholarly journals Temperature-Phased Conversion of Acid Whey Waste Into Medium-Chain Carboxylic Acids via Lactic Acid: No External e-Donor

Joule ◽  
2019 ◽  
Vol 3 (3) ◽  
pp. 885-888 ◽  
Author(s):  
Jiajie Xu ◽  
Jiuxiao Hao ◽  
Juan J.L. Guzman ◽  
Catherine M. Spirito ◽  
Lauren A. Harroff ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Carboxylic Acids ◽  
Medium Chain ◽  
Acid Whey

Downstream Processing of Lactic Acid by Membrane-Based Solvent Extraction∗

1996 ◽  
Vol 31 (16) ◽  
pp. 2159-2169 ◽  
Author(s):  
Lidietta Giorno ◽  
Peter Spicka ◽  
Enrico Drioli
Keyword(s):  
Lactic Acid ◽  
Solvent Extraction ◽  
Downstream Processing

scholarly journals Temperature-Phased Conversion of Acid Whey Waste Into Medium-Chain Carboxylic Acids via Lactic Acid: No External e-Donor

Joule ◽  
2018 ◽  
Vol 2 (2) ◽  
pp. 280-295 ◽  
Author(s):  
Jiajie Xu ◽  
Jiuxiao Hao ◽  
Juan J.L. Guzman ◽  
Catherine M. Spirito ◽  
Lauren A. Harroff ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Carboxylic Acids ◽  
Medium Chain ◽  
Acid Whey
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