Recent research on 3-phenyllactic acid, a broad-spectrum antimicrobial compound
Wanmeng Mu1, Shuhuai Yu, Lanjun Zhu
1State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China. wmmu@jiangnan.edu.cn
Applied Microbiology and Biotechnology
|July 12, 2012
Summary
3-Phenyllactic acid (PLA) is a natural antimicrobial found in fermented foods. This review details its production, broad-spectrum activity, and potential as a feed additive to replace antibiotics in livestock.
Area of Science:
- Microbiology
- Biochemistry
- Food Science
Background:
- 3-Phenyllactic acid (PLA) is a naturally occurring organic acid found in honey and fermented foods.
- It is produced by various microorganisms, particularly lactic acid bacteria (LAB).
- PLA exhibits significant antimicrobial properties against a wide range of bacteria and fungi.
Purpose of the Study:
- To review recent studies on 3-Phenyllactic acid (PLA).
- To summarize existing resources, antimicrobial activities, and measurement techniques for PLA.
- To discuss the bioproduction of PLA, including relevant microorganisms, metabolic pathways, and fermentation strategies.
Main Methods:
- Literature review of existing studies on 3-Phenyllactic acid (PLA).
- Detailed examination of microorganism strains and dehydrogenases involved in PLA production.
- Discussion of metabolic pathways and regulatory mechanisms for PLA synthesis in LAB.
- Summary of high-level bioproduction strategies for PLA via microbial fermentation.
Main Results:
- PLA is a versatile antimicrobial compound with potential applications as a feed additive, offering an alternative to antibiotics in livestock.
- Various microbial strains, especially LAB, and specific dehydrogenases are key players in PLA biosynthesis.
- Understanding the metabolic pathways and regulation of PLA synthesis is crucial for optimizing its production.
- Efficient microbial fermentation methods can achieve high-level bioproduction of PLA.
Conclusions:
- 3-Phenyllactic acid (PLA) is a promising natural antimicrobial with significant potential in food preservation and as a sustainable alternative to antibiotics in animal feed.
- Further research into microbial production pathways and fermentation optimization can enhance the industrial applicability of PLA.
- This review consolidates current knowledge, providing a foundation for future advancements in PLA research and application.
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