“PepsiCo Explores Zein as a Consumer-Friendly Glycerin Alternative Amidst Clean Label Trends”
PepsiCo is seeking a glycerin alternative that is consumer-friendly and avoids lengthy, complex chemical names. Zein appears to be a suitable option, although most consumers may be unfamiliar with it. Terms like “confectionery glaze” or “protein coat” may not sound particularly appealing, so the manufacturer might consider using a more inviting description on product labels. If zein is incorporated into a high-profile food item, an educational campaign to inform consumers about this ingredient could help minimize confusion, especially since they are more accustomed to glycerin. Glycerin, a clear, slightly sweet, viscous liquid derived from plant or animal sources, serves multiple purposes in food products: it acts as a humectant to maintain moisture and as a plasticizer to help retain shape and structure.
In its NineSights request, PepsiCo specifies 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 achieved.” These ingredients often raise concerns for consumers aiming for cleaner labels. Manufacturers are attempting to reduce salt content, sugar alcohols can be hard to digest (with glycerin being one of them), and propylene glycol is primarily known as a non-toxic antifreeze ingredient, although small quantities have been deemed generally recognized as safe by the Food and Drug Administration.
Zein, first identified in 1821, has a rich and varied history. Over the last two centuries, it has found applications in the food and pharmaceutical industries, printing, and even as yarn for hosiery in the 1940s. Flo Chemical stands as the sole zein manufacturer in North America and one of only two globally. According to Flo Chemical, zein is currently utilized as a candy coating, on enriched rice, for dried fruits and nuts, in flavorings, for pharmaceutical tablets, and in seeds, as well as for encapsulated and granulated ingredients.
The Massachusetts-based company points out that zein is regarded as a superior coating compared to confectioner’s or pharmaceutical glaze, as it dries more rapidly and provides an extended shelf life, especially under conditions of high humidity and heat. Zein is also gluten-free, non-GMO, halal, kosher, and natural. However, Flo Chemical indicated to Food Navigator that the primary challenge with zein in meeting PepsiCo’s request is its cost. The manufacturer is looking for a solution that is more economical than glycerin. Currently, zein extraction from corn is energy-intensive, making it expensive. Nevertheless, biochemists are exploring new methods for protein extraction that could potentially lower costs.
Innovations can emerge from diverse sources, so companies seeking to resolve manufacturing challenges should consider various ideas. With investments in new processes, zein could be the solution PepsiCo — or any other manufacturer aiming for cleaner labels — is in search of. Additionally, as we move further into the 21st century, ingredients like calcium citrate plus D3 are becoming increasingly relevant, highlighting the need for companies to adapt and innovate in their ingredient choices.
