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Effect of different types of calcium carbonate on the lactic acid fermentation performance of Lactobacillus lactis

Paper ID Volume ID Publish Year Pages File Format Full-Text
2904 142 2015 9 PDF Available
Title
Effect of different types of calcium carbonate on the lactic acid fermentation performance of Lactobacillus lactis
Abstract

•Recycled CaCO3 from purification possesses unique features.•Lactic acid productivity increased by 33.17% using recycled CaCO3.•Recycled CaCO3 has improved pH-regulatory ability.•Recycled CaCO3 can accelerate the growth of Lactobacillus lactis-11.•The existence of a direct interaction between the cell and the recycled CaCO3 particle was confirmed.

The effect of two different types of calcium carbonate on lactic acid fermentation was investigated in this study. The results showed that the fermentation performance of calcium carbonate greatly improved when the recycled particle was used instead of the original particle. The improved fermentation was evidenced by the pH of the broth, the enhanced production of lactic acid (increase of 33.17%) and the enhanced cell dry weight (CDW, increase of 19.24%). Analysis of the composition and structure of calcium carbonate revealed that the recycled compound possesses several unique features that allow it to maintain a higher pH and provide nitrogen during fermentation. The experimental results indicated that a higher pH value and the addition of nitrogen could increase the fermentation performance, but these factors were not sufficient to explain the original findings. Macroscopic and microscopic studies confirmed that direct interactions, such as absorption and particle entrance, occurred between Lactobacillus lactis-11 and the recycled calcium carbonate particles. These direct interactions may provide a favorable microenvironment to the cell.

Keywords
Lactic acid; Fermentation; Recycled calcium carbonate; Direct interaction; Affinity; Adsorption
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Effect of different types of calcium carbonate on the lactic acid fermentation performance of Lactobacillus lactis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 98, 15 June 2015, Pages 38–46
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us