Joint effect of nitrogen sources and B vitamin supplementation of date juice on lactic acid production by Lactobacillus casei subsp. rhamnosus

2005 ◽  
Vol 96 (1) ◽  
pp. 63-67 ◽  
Author(s):  
A NANCIB
1997 ◽  
Vol 84 (2) ◽  
pp. 172-175 ◽  
Author(s):  
Ik-Keun Yoo ◽  
Ho Nam Chang ◽  
Eun Gyo Lee ◽  
Yong Keun Chang ◽  
Seung-Hyeon Moon

2021 ◽  
Author(s):  
Kedong Ma ◽  
Yubo Cui ◽  
Ke Zhao ◽  
Yuxuang Yang ◽  
Yidan Wang ◽  
...  

Abstract Background: D-lactic acid played an important role in the establishment of PLA as a substitute for petrochemical plastics. But, so far, the D-lactic acid production was limited in only pilot scale, which was definitely unable to meet the fast growing market demand. To achieve industrial scale D-lactic acid production, the cost-associated problems such as high-cost feedstock, expensive nutrient sources and fermentation technology need to be resolved to establish an economical fermentation process.Results: In the present study, the combined effect of B vitamin supplementation and membrane integrated continuous fermentation on D-lactic acid production from agricultural lignocellulosic biomass by Lactobacillus delbrueckii was investigated. The results indicated the specific addition of vitamins B1, B2, B3 and B5 could reduce the yeast extract (YE) addition from 10 g/l to 3 g/l without obvious influence on fermentation efficiency. By employing cell recycling system in 350 h continuous fermentation with B vitamin supplementation, YE addition was further reduced to 0.5 g/l, which resulted in nutrient source cost reduction of 86%. A maximum D-lactate productivity of 18.56 g/l/h and optical purity of 99.5% were achieved and higher than most recent reports. Conclusion: These findings suggested the novel fermentation strategy proposed could effectively reduce the production cost and improve fermentation efficiency, thus exhibiting great potential in promoting industrial scale D-lactic acid production from lignocellulosic biomass.


2005 ◽  
Vol 27 (21) ◽  
pp. 1685-1688 ◽  
Author(s):  
Pappy John Rojan ◽  
Kesavan Madhavan Nampoothiri ◽  
Athira Syamaprasad Nair ◽  
Ashok Pandey

2018 ◽  
Vol 36 (No. 2) ◽  
pp. 146-153 ◽  
Author(s):  
Gharwalová Lucia ◽  
Paulová Leona ◽  
Patáková Petra ◽  
Branská Barbora ◽  
Melzoch Karel

Biotechnological production of lactic acid has experienced a boom that is hindered only by the lack of low-cost, abundant material that might be used as a substrate for lactic acid bacteria. Such material should contain not only carbon but also complex nitrogen sources, amino acids and vitamins necessary for the balanced growth of the bacteria. Here, for the first time, a combination of hydrolysates of wheat straw and chicken feathers was used as a complete waste cultivation medium for lactic acid production. It was shown to be a promising substrate for lactic acid production, reducing the medium price by 73% compared with MRS broth, providing more than 98% lactic acid yield and high productivity (2.28 ± 0.68 g/l/h) in a fed-batch process using Lactobacillus reuterii LHR14.


2019 ◽  
Vol 57 (3) ◽  
pp. 915-926 ◽  
Author(s):  
Rengesh Balakrishnan ◽  
Subbi Rami Reddy Tadi ◽  
Allampalli Satya Sai Pavan ◽  
Senthilkumar Sivaprakasam ◽  
Shyamkumar Rajaram

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