Lactic Acid Production: Processes, Challenges, and Sustainability Initiatives

Lactic acid is now widely used throughout multiple industries, which has drawn attention to the lactic acid market due to its environmentally friendly aspects. The lactic acid market’s worth in 2022 was estimated to be US$ 3,124, while it is thought that between 2023 and 2030, it will experience a CAGR of 8.2%. The blog touches upon the most common methods of lactic acid production, the hurdles of lactic acid manufacture, and the new strategies that are being adopted to enhance the sustainability of the production process.

Ways of Producing Lactic Acid

• Fermented Lactic Acid

  : Fermented lactic acid is produced through a lactic acid fermentation, which is the most common method for the production of lactic acid. It uses carbohydrate-rich feedstocks like starch or glucose combined with agricultural wastes and fermented by microorganisms such as lactobacillus species. This is an inexpensive, high-yield, efficient, and optically pure method of lactic acid production. This kind of lactic acid holds importance in biodegradable oils as it is manufactured using lactic acids.

• Chemical Synthesis

  : Another approach is chemical synthesis, although this normally incorporates petrochemical derivatives. This method is faster in speed of lactic acid production. Due to environmental constraints and lack of optical purity, this method is still not too popular, but efforts are in progress to help make this process more environmentally friendly.

Difficulties Facing the Process of Synthesis of Lactic Acid

Difficulties Facing the Process of Synthesis of Lactic Acid

Producing this compound comes with a considerable compromise, as production has turmoil due to the following:

• Production Waste: Harmful waste is put forth when production is fermented, and these wastes need to be adequately disposed of to ensure there are no ramifications suffered by the environment.
• Cost of Production: There can always be a fluctuation in the availability of materials, selling costs, and labor of providing sugar cane or corn, which in turn will spike up the cost of production.
• Scaling Up Operations: In order to efficaciously meet the operational requirements of transitioning from a lab to the industrial scale, there are various challenges that will need to be overcome.
• Energy Consumption: No matter the extraction method used, fermentation or chemical, both are reasonably energy intensive to achieve, which significantly impacts the cost efficiency and sustainability of the end product.

Strategies for Addressing the Issues in the Process of Manufacturing Lactic Acid

Strategies for Addressing the Issues in the Process of Manufacturing Lactic Acid

Considering the effort that goes into the extraction of the compound, there is a dire need for the issues mentioned above to be resolved. This leads to the need for adopting sustainable practices on a global scale:

• Enhanced Methods of Lactic Acid Synthesis: Amalgamating other processes alongside biorefinery to produce lactic acid in order to optimize resources through genetically enhancing microbes to yield more thorough fermentation, reducing waste.
• Reducing Competition alongside Lowering Environmental Bottlenecks: Replacing traditional feedstocks through agricultural lavishes and non-food biomass, which ensures there is less impact on the environment.
• Carbon Footprint Reduction: Making use of renewable energy sources has proven effective for carbon footprint reduction when fitted alongside production facilities.
• Enclosed Models of Economy: There is considerable waste and resources being put to waste when by-products and chemicals are mixed when there should be a closed loop to recycle by-products, waste, and water.

The Way Ahead

The Way Ahead

In response to an unprecedented rise in worldwide competitiveness, the attention on green production of lactic acid has been steadily increasing. The alleviation of the troubles in lactic acid synthesis through renewable feedstocks, waste minimization, and energy efficiency improvement is in line with the global sustainability agenda.
The biodegradation of lactic acid and its advanced production techniques serve as an illustration of the reconciliation of the directive to expand businesses and care for the ecological environment. It can be anticipated that lactic acid will continue to be relevant in the future due to ongoing changes.