Coffee is a widely enjoyed beverage and one of the world’s most traded commodities. However, it also generates large amounts of bio-based waste including coffee silverskin (CS) and spent coffee grounds (SCG). Both SCG and CS contain oils, polyphenols, and caffeine among other substances, showing potential for valorization. However, most of the SCG and CS generated by the coffee industry is discarded as waste. SCG and CS are lignocellulosic materials that show potential for the production of biocomposites. Because of their hydrophilic character, chemical modification of these wastes is often necessary before compounding with polymers. Oil extracted from SCG can be cultured with bacteria for producing biopolymers. The use of SCG and CS in nanoform has been seldom explored, although CS in particular shows potential as a source of nanocellulose. Utilization of SCG and CS in packaging development could thus be beneficial in the context of the circular economy. Therefore, this review summarizes recent research on the development of packaging materials using SCG and CS. The composition and characteristics of both wastes are presented, and the production of biopolymers and composites using these materials is discussed.

咖啡是一种被广泛享用的饮料，也是世界上交易量最大的商品之一。但是，它还会产生大量生物基废物，包括咖啡银皮（CS）和废咖啡渣（SCG）。SCG和CS均包含油，多酚和咖啡因以及其他物质，显示出增值潜力。但是，咖啡行业产生的大部分SCG和CS均作为废物丢弃。SCG和CS是木质纤维素材料，显示出生产生物复合材料的潜力。由于它们的亲水性，在与聚合物混合之前，经常需要对这些废物进行化学改性。从SCG提取的油可以与细菌一起培养以生产生物聚合物。尽管CS尤其显示出作为纳米纤维素来源的潜力，但很少探索在纳米形式中使用SCG和CS。因此，在循环经济的背景下，在包装开发中使用SCG和CS可能是有益的。因此，本综述总结了有关使用SCG和CS开发包装材料的最新研究。介绍了两种废物的组成和特性，并讨论了使用这些材料生产生物聚合物和复合材料的方法。