scholarly journals Lactic Acid Production from Potato Peel Waste, Spent Coffee Grounds and Almond Shells with Undefined Mixed Cultures Isolated from Coffee Mucilage from Coatepec Mexico

2016 ◽  
Vol 06 (01) ◽  
Author(s):  
Andres Breton Toral ◽  
Sergio R Trejo Estrada ◽  
Armando G McDonald
Keyword(s):  
Lactic Acid ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Mixed Cultures ◽  
Spent Coffee Grounds ◽  
Potato Peel ◽  
Coffee Grounds

scholarly journals Statistical Optimization of Alkali Pretreatment to Improve Sugars Recovery from Spent Coffee Grounds and Utilization in Lactic Acid Fermentation

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 494 ◽  
Author(s):  
Kang Hyun Lee ◽  
Ye Won Jang ◽  
Jeongho Lee ◽  
Seunghee Kim ◽  
Chulhwan Park ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Enzymatic Hydrolysis ◽  
Lactic Acid Production ◽  
Complex Loading ◽  
Lactic Acid Fermentation ◽  
Optimum Conditions ◽  
Spent Coffee Grounds ◽  
Alkali Pretreatment ◽  
Acid Fermentation ◽  
Coffee Grounds

Biorefinery, which utilizes carbon-neutral biomass as a resource, is attracting attention as a significant alternative in a modern society confronted with climate change. In this study, spent coffee grounds (SCGs) were used as the feedstock for lactic acid fermentation. In order to improve sugar conversion, alkali pretreatment was optimized by a statistical method, namely response surface methodology (RSM). The optimum conditions for the alkali pretreatment of SCGs were determined as follows: 75 °C, 3% potassium hydroxide (KOH) and a time of 2.8 h. The optimum conditions for enzymatic hydrolysis of pretreated SCGs were determined as follows: enzyme complex loading of 30-unit cellulase, 15-unit cellobiase and 50-unit mannanase per g biomass and a reaction time of 96 h. SCG hydrolysates were used as the carbon source for Lactobacillus cultivation, and the conversions of lactic acid by L. brevis ATCC 8287 and L. parabuchneri ATCC 49374 were 40.1% and 55.8%, respectively. Finally, the maximum lactic acid production by L. parabuchneri ATCC 49374 was estimated to be 101.2 g based on 1000 g of SCGs through the optimization of alkali pretreatment and enzymatic hydrolysis.

A preliminary study on a novel bioaugmentation technique enhancing lactic acid production by mixed cultures fermentation

2021 ◽  
pp. 125595
Author(s):  
Grazia Policastro ◽  
Federica Carraturo ◽  
Mariacristina Compagnone ◽  
Marco Giugliano ◽  
Marco Guida ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Mixed Cultures ◽  
Preliminary Study

Lactic acid production with undefined mixed culture fermentation of potato peel waste

2014 ◽  
Vol 34 (11) ◽  
pp. 2022-2027 ◽  
Author(s):  
Shaobo Liang ◽  
Armando G. McDonald ◽  
Erik R. Coats
Keyword(s):  
Lactic Acid ◽  
Mixed Culture ◽  
Acid Production ◽  
Lactic Acid Production ◽  
Potato Peel ◽  
Mixed Culture Fermentation
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