Modeling and Optimization of Lactic Acid Production using Cashew Apple Juice as Substrate

Guilherme, Alexandre A.; Silveira, Mariana Santiago; Fontes, Cláudia Patrícia Mourão Lima; Rodrigues, Sueli

doi:10.1007/s11947-011-0670-z

Cited by 14 publications

(11 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Typical fermentation processes for lactic acid production output lactic acid concentrations between 50 to 60 g/L and productivities between 1.0 to 5.0 g/L.h (Guilherme et al, 2011;Oliveira et al, 2009;Silveira et al, 2010). For example, the production of lactic acid employing molasses from hydrolyzed sugarcane fermented by Lactobacillus casei presented a maximum concentration of lactic acid of 58.9 g/L and a maximum yield of 1.2 g/L.h (Oliveira et al, 2009).…”

Section: Resultsmentioning

confidence: 99%

“…For example, the production of lactic acid employing molasses from hydrolyzed sugarcane fermented by Lactobacillus casei presented a maximum concentration of lactic acid of 58.9 g/L and a maximum yield of 1.2 g/L.h (Oliveira et al, 2009). The production of lactic acid employing cashew apple juice fermented by Lactobacillus casei presented a maximum concentration of lactic acid of 59.3 g/L, yields up to 96% and a maximum productivity of 1.7 g/L.h (Guilherme et al, 2011). Gullon et al (2008) obtained productivities as high as 5.1 g/L.h with a lactic acid concentration of 32.5 g/L fermenting apple pomace.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Production of Lactic Acid From Glycerol by Applying an Alkaline Hydrothermal Process Using Homogeneous Catalysts and High Glycerol Concentration

Rodrigues

Maia

Fernandes

2015

Braz. J. Chem. Eng.

View full text Add to dashboard Cite

-The production of lactic acid from glycerol by means of the alkaline hydrothermal process was evaluated using high concentrations of glycerol. The operating conditions that influence the hydrothermal process were studied. Temperature (250 -280 °C), catalyst to glycerol molar ratio (0.05 to 0.15), and water to glycerol volumetric ratio (0.8 to 1.5) were evaluated, as well as the use of NaOH and KOH as catalysts. A concentration of lactic acid of 122 g/L was obtained at 260 °C, 0.04 NaOH to glycerol molar ratio, 1.0 water to glycerol volumetric ratio and 3 h of reaction using crude glycerol as raw material. The results showed higher lactic acid concentration and productivity than the fermentative process and the hydrothermal process carried out using low initial glycerol concentration.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Production of Lactic Acid From Glycerol by Applying an Alkaline Hydrothermal Process Using Homogeneous Catalysts and High Glycerol Concentration

Rodrigues

Maia

Fernandes

2015

Braz. J. Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…% is used to induce a sour taste in food products, for example in pickles and sauerkraut. It is also used as an acidulant in the food industry [2]. In addition, it is also used in the textile industry as a caustic [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…% on dry basis) which can be used as the monomer for producing poly-lactic acid (PLA). PLA can be obtained from lactic acid via two different mechanisms -1) direct polymerization of lactic acid by poly-condensation or 2) condensation to form lactide (intermediate) and corresponding ring-opening polymerization to obtain PLA [3].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Development of a sustainable process for the production of polymer grade lactic acid

Bapat

Aichele

High

2014

Sustain Chem Process

View full text Add to dashboard Cite

Lactic acid is a commonly occurring substance in nature, ranging from existence in micro-organisms to the human body. Traditionally, lactic acid has applications in industries such as food, chemicals, pharmaceuticals and textiles. In this work, a sustainable process for the production of polymer grade lactic acid (99 wt. % on dry basis) from crude lactic acid was simulated. The simulation was performed using Aspen Plus® version 8.2. The thermodynamic model used for the process was NRTL -Hayden O'Connell due to the polar nature and non-ideal behavior of the species involved. The process was carried out in three stages. First, crude lactic acid was obtained by reacting calcium lactate with sulfuric acid. The second stage consisted of esterification of lactic acid by reactive distillation. A RadFrac column was used for this purpose which also facilitated easy separation of methyl lactate from methanol and water. Pure methyl lactate obtained from the second stage was then hydrolyzed in the third stage using pure lactic acid as an auto-catalyst to obtain the desired product. Use of pure lactic acid as an auto-catalyst helped to achieve the required purity as it minimized contamination. The process was optimized using sensitivity analysis in Aspen Plus®.

show abstract

Development of a kinetic model structure for simultaneous saccharification and fermentation in rice wine production

et al. 2015

View full text Add to dashboard Cite

Rice wine experiments were performed with glutinous rice, Chinese wheat Qu, and the yeast strain Saccharomyces cerevisiae Su-25 at ambient temperature or at different set temperatures. The major products were identified and measured by HPLC. A low-order kinetic model structure (form or construct of model with adjustable parameters) was proposed for the major products and the main reactions of the simultaneous saccharification and fermentation (SSF) process. The model structure was then tested for its ability to capture the main kinetic variations after parameter optimization by a least-squares algorithm. The proposed model structure was found useful in describing the measured kinetic variations except those in maltotriose production under ambient conditions. The estimated reaction rates correctly reflected the variations known or observed from the experiments, and provided insights into the reaction processes in terms of reaction speeds, dominant variations and primary products. While additional research is warranted for further validation and refinement, the proposed model structure shows promise for describing the SSF process of rice wine.

show abstract

Modeling and Optimization of Lactic Acid Production using Cashew Apple Juice as Substrate

Cited by 14 publications

References 27 publications

Production of Lactic Acid From Glycerol by Applying an Alkaline Hydrothermal Process Using Homogeneous Catalysts and High Glycerol Concentration

Production of Lactic Acid From Glycerol by Applying an Alkaline Hydrothermal Process Using Homogeneous Catalysts and High Glycerol Concentration

Development of a sustainable process for the production of polymer grade lactic acid

Development of a kinetic model structure for simultaneous saccharification and fermentation in rice wine production

Contact Info

Product

Resources

About