Anti-adhesive Coating with Natural Materials Application for Yogurt Storage

Yogurt is popular among consumers because of its unique flavor and rich nutrition, but the residue of yogurt in the package causes a huge waste of resources and economic losses. To reduce yogurt residues in packaging, a green and safe anti-adhesion coating was assembled using beeswax and modified hydrophobic zinc oxide spray. The water contact angle of the coating reached up to 156.45° and up to 150.64° for yogurt, with a sliding angle of 4.50°, exhibiting good anti-adhesion ability. During actual storage, yogurt adhesion in the package was reduced by 93.73% and the coating had no negative effect on the quality of yogurt. The study showed that a secure anti-adhesion coating that is resistant to acidic environments and refrigeration temperatures and suitable for a variety of material surfaces can be prepared by a simple spraying process, providing a new approach to solving the yogurt adhesion problem.