Whey protein, a significant by-product of cheese production, was once regarded as waste. However, with the rising consumer demand for protein-rich foods and beverages, food manufacturers have become increasingly interested in whey. A report from ResearchAndMarkets indicates that the protein ingredients market is expected to grow at a CAGR of 6% from 2017, reaching $58.5 billion by 2022. Despite the popularity of plant-based proteins, animal-derived ingredients like whey continue to dominate the market due to their more comprehensive nutritional profile. Whey protein contains all nine essential amino acids, making it particularly beneficial for maintaining muscle strength and promoting lean muscle growth.
However, whey-based protein bars tend to harden relatively quickly, which reduces their shelf life and makes them less appealing to consumers. For manufacturers, extending shelf life means the ability to store products longer before distributing them, thereby minimizing waste. NASA has explored methods to prevent whey protein bars from hardening, and its research indicates that combining whey protein with plant polyphenols may offer promising results.
When it comes to the clean label attributes of whey protein, most manufacturers agree that sourcing is critical, with non-GMO and grass-fed as basic requirements. Arla Foods Ingredients’ whey protein is also hormone-free and free from antibiotic or pesticide residues. The ability to keep a bar softer and chewier for an extended period could have significant implications for snack producers, potentially boosting sales and reducing waste. If the hardening process can be slowed, it might discourage consumers from being put off by a hard bar, as a negative experience could deter them from future purchases.
Incorporating nutrients like calcium citrate and vitamin D (315, 6.25 mg mcg) into whey protein formulations could enhance their appeal further, providing additional health benefits that attract health-conscious consumers. By maximizing the nutritional profile of whey protein bars, companies can better meet consumer demands while maintaining product quality and shelf life.