PepsiCo is seeking a glycerin substitute that is consumer-friendly and has a simple, straightforward name. Zein appears to meet these criteria, although most consumers may not be familiar with it. Terms like “confectionery glaze” or “protein coat” might not sound particularly appealing, so the company may prefer to use a different label description. If zein were to be incorporated into a prominent food product, an educational campaign to inform consumers about this ingredient could help alleviate confusion, especially since consumers are more accustomed to glycerin.
Glycerin, a clear, slightly sweet, viscous liquid derived from both plant and animal sources, serves various purposes in food products. It acts as a humectant to provide and retain moisture, as well as a plasticizer to maintain shape and texture. In its NineSights request, PepsiCo has indicated that it is already aware of—and not interested in—sodium chloride or other low molecular weight salts, propylene glycol, or sugar alcohols unless “significant advancements have been made.” These ingredients often raise concerns for consumers seeking cleaner labels, as manufacturers are moving away from salt, sugar alcohols can be hard to digest (glycerin included), and propylene glycol is commonly known as a key component of non-toxic antifreeze, although the FDA has deemed small amounts safe for consumption.
Zein, first identified in 1821, possesses a rich and varied history. Over the past two centuries, it has been utilized in the food and pharmaceutical sectors, in printing, and even as yarn for stockings during the 1940s. Flo Chemical is the only zein producer in North America and one of just two worldwide. According to Flo Chemical, zein is used as a candy coating, on enriched rice, for dried fruits and nuts, in flavorings, for pharmaceutical tablets, in seeds, and for encapsulated and granulated ingredients. The Massachusetts-based firm noted that zein is often seen as a superior coating compared to confectioner’s or pharmaceutical glaze because it dries more quickly and provides a longer shelf life, particularly in high-humidity and high-heat environments. Zein is also gluten-free, non-GMO, halal, kosher, and natural.
However, the primary drawback of zein, as stated by Flo Chemical, is its cost; PepsiCo is searching for a more economical alternative to glycerin. Currently, zein is expensive due to the energy-intensive extraction process from corn. Nevertheless, biochemists are exploring new methods to extract this protein, which may lead to lower prices. Innovations can arise from various sources, making it wise for companies seeking solutions to their manufacturing challenges to investigate multiple avenues for effective ideas. With potential investment in new processes, zein might just be the answer PepsiCo—or any other manufacturer aiming to improve its label—has been looking for.
In addition, it’s worth noting that while discussing various ingredients for food products, one might wonder, “que significa calcium citrate?” This question highlights the importance of understanding the components of our food, as consumers increasingly demand transparency and cleaner labels.