Poláková Katarína, Bobková Alica, Demianová Alžbeta, Bobko Marek, Lidiková Judita, Jurčaga Lukáš, Belej Ľubomír, Mesárošová Andrea, Korčok Melina, Tóth Tomáš
Institute of Food Sciences, The Faculty of Biotechnology and Foods Sciences, The Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 94976 Nitra, Slovakia.
Foods. 2023 Jul 11;12(14):2675. doi: 10.3390/foods12142675.
Coffee processing is a major contributor to the creation of food and product waste. Using coffee co-products can play an essential role in addressing environmental problems and issues with nutritionally unbalanced foods, population growth, and food-related diseases. This research aimed to determine the quality and sensory parameters (aw, pH, dry matter, TAC, TPC, fat, fatty acids profile, fiber, caffeine, chlorogenic acids, color, and sensory analysis) of different botanical origins of cascara (coffee husks) and silverskin (thin layer). The results of this study show that silverskin and cascara are a good source of TAC (1S 58.17 ± 1.28%, 2S 46.65 ± 1.20%, 1C 36.54 ± 1.84%, 2C 41.12 ± 2.11%). Cascara showed the presence of polyphenols (2C 49.135 g GAE·kg). Coffee co-products are good sources of fiber. Silverskin had higher values of caffeine than cascara. Palmitic, stearic, oleic, linoleic, and arachidic acids were the most represented acids in the samples. Given the obtained results, cascara can be considered "low-fat" (1C 4.240 g·kg and 2C 5.4 g·kg). Based on the sensory evaluation, no sample reached the acceptable index value of 70%. Understanding the link between the character, identification properties, and composition of coffee co-products of different botanical origins can enable their application in the food industry.
咖啡加工是食品和产品废弃物产生的主要原因之一。使用咖啡副产品对于解决环境问题以及营养不均衡食品、人口增长和与食品相关疾病等问题具有至关重要的作用。本研究旨在测定不同植物来源的咖啡果皮(咖啡壳)和银皮(薄层)的质量和感官参数(水分活度、pH值、干物质、总抗氧化能力、总酚含量、脂肪、脂肪酸谱、纤维、咖啡因、绿原酸、颜色和感官分析)。本研究结果表明,银皮和咖啡果皮是总抗氧化能力的良好来源(1S为58.17±1.28%,2S为46.65±1.20%,1C为36.54±1.84%,2C为41.12±2.11%)。咖啡果皮中含有多酚(2C为49.135 g没食子酸当量·kg)。咖啡副产品是纤维的良好来源。银皮中的咖啡因含量高于咖啡果皮。棕榈酸、硬脂酸、油酸、亚油酸和花生酸是样品中含量最多的酸。根据所得结果,咖啡果皮可被视为“低脂”(1C为4.240 g·kg,2C为5.4 g·kg)。基于感官评价,没有样品达到70%的可接受指标值。了解不同植物来源的咖啡副产品的特性、鉴别特性和成分之间的联系,有助于它们在食品工业中的应用。