Food-grade additive from Palsgaard to protect packaged food

The company ties up with a Korean PE film manufacturer for Eina 611

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Palsgaard
Palsgaard and Korean PE film manufacturer collaborate to optimize the shelf-life, aesthetics, safety & sustainability of sensitive food packaging

Juelsminde, Denmark — Palsgaard, a leader in plant-based additives for the plastics industry, has announced that its Einar 611 bio-based anti-fog surfactant has been successfully specified by a major Korean supplier of food-grade polyethylene (PE) film solutions.

The customer had been looking for a cold anti-fog additive that would effectively protect the packaged food from spoilage by preventing the formation of condensation droplets on the inside of the film. The surfactant had to eliminate regulatory concerns with regard to its chemistry and provide superior functional performance at cost-effectively low concentrations.

The importance of food packaging is ever-changing, from the mere protection of food items from the outside in nice packaging to concerns about food safety and product shelf life,” says Ulrik Aunskjaer, the global Business Director for Bio-Specialty Polymer Additives at Palsgaard. “Our plant-based Einar 611 anti-fog has proven to be a perfect choice in this PE film application to minimize the risk of moisture accumulating in small reservoirs on the inner surface of the packaging film, where bacteria could grow and then drop down and spoil the food.”

In an iterative sampling process focused on the customer’s specifications and needs, comprehensive experimental and trial data was shared between the partners to optimize and validate the film solution. In this process, Palsgaard’s Polymer Application Centre in Denmark provided support in assessing the right concentration level of Einar 611 in this cold anti-fog application and helping the customers accelerate the time-to-market of the new PE food packaging film.

As a renewable polyglycerol ester made from vegetable oils that are not competing with food or feed sources, Einar 611 has been developed as a highly effective replacement for conventional anti-fog chemistries, such as glycerol monooleate or sorbitan esters, in demanding PE film formulations designed for sensitive food packaging.

With anti-fog performance matching or exceeding that of non-vegetable fossil-based incumbents, it delivers excellent results in LDPE and LLDPE as well as coextruded and laminated PE film at low loading levels (typically 0.2% to 0.4%) for both cold-fog and hot-fog applications.

Moreover, it has proven as an ideal additive in PE masterbatches and shows no adverse effects on the mechanical, optical, or barrier properties of the film, while offering high heat resistance and low volatility. The bio-based anti-fog surfactant is available in paste form.

From a perspective of food safety, the anti-fog performance of Einar 611 can also make a significant contribution to the reduction of food waste by preserving its freshness. The additive supports the clear view of the packaged product, which promotes its consumer appeal over a longer shelf-life, and meets all global food-contact standards, including kosher and halal. 

In the meantime, along with expanding its production capacities, Palsgaard continues investing in its own Scope 1 and Scope 2 carbon-neutral production processes. At Juelsminde in Denmark, the company is building a biogas plant that will use wastewater from Palsgaard, is expected to become operational in early 2023, and will cover 10% of the required gas supply on-site. Another project scheduled to commence in spring 2023 is the construction of a 60-acre solar power plant with an annual capacity of 60 GWh, generating sufficient renewable electricity to power all future capacity expansions currently planned at Juelsminde.

Palsgaard will be present at K 2022 in Düsselsdorf from 19 to 26 October in Hall 7, Level 1, Booth D20.

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