Department of Chemical and Biochemical Engineering, University POLITEHNICA of Bucharest, 1, Gh. Polizu Street, Building A, Room A056, RO-011061 Bucharest, Romania.
Department of Organic Chemistry Costin Nenitescu, University POLITEHNICA of Bucharest, 1, Gh. Polizu Street, Building P, Room 014-015, RO-011061 Bucharest, Romania.
Molecules. 2022 Jun 29;27(13):4191. doi: 10.3390/molecules27134191.
Lycopene, β-carotene and ω-fatty acids are major compounds in tomatoes with known antioxidant activity, capable of preventing health disorders. The identification of potential natural sources of antioxidants, extraction efficiencies and antioxidant activity assessments are essential to promote such products to be used in the food, pharmaceutical or cosmetic industries. This work presents four added-value products recovered from tomatoes: pigmented solid oleoresin, pigmented oil and two raw extracts from supercritical and Soxhlet extraction. Different parameters including the matrices of tomatoes, extraction methods, green solvents and operating parameters were varied to obtain extracts with different qualities. Extract analysis was performed using UV-VIS, FT-IR, GC-MS, Folin-Ciocalteu and DPPH methods. The highest-quality extract was the solid oleoresin obtained from pomace using supercritical CO extraction at 450 bar, 70 °C and 11 kg/h: 1016.94 ± 23.95 mg lycopene/100 g extract, 154.87 ± 16.12 mg β-carotene/100 g extract, 35.25 ± 0.14 mg GAE/g extract and 67.02 ± 5.11% inhibition DPPH. The economic feasibility of the three extraction processes (1:10:100 kg dried pomace/batch as scalability criterion) was evaluated. The most profitable was the supercritical extraction process at the highest capacity, which produces pigmented solid oleoresin and oil with high content of lycopene valorized with a high market price, using natural food waste (pomace).
番茄红素、β-胡萝卜素和 ω-脂肪酸是具有已知抗氧化活性的番茄中的主要化合物，能够预防健康失调。确定潜在的天然抗氧化剂来源、提取效率和抗氧化活性评估对于促进这些产品在食品、制药或化妆品行业中的应用是至关重要的。本工作从番茄中回收了四种附加值产品：着色固体油树脂、着色油和两种来自超临界和索氏提取的原始提取物。不同的参数，包括番茄基质、提取方法、绿色溶剂和操作参数，都有所变化，以获得具有不同质量的提取物。使用 UV-VIS、FT-IR、GC-MS、Folin-Ciocalteu 和 DPPH 方法对提取物进行分析。使用超临界 CO 萃取，在 450 巴、70°C 和 11kg/h 的条件下从番茄渣中获得的固体油树脂提取物质量最高：1016.94±23.95mg 番茄红素/100g 提取物、154.87±16.12mgβ-胡萝卜素/100g 提取物、35.25±0.14mg 没食子酸当量/g 提取物和 67.02±5.11%抑制 DPPH。评估了三种提取工艺（1:10:100kg 干燥番茄渣/批处理作为可扩展性标准）的经济可行性。在最高产能下，超临界提取工艺最具盈利性，可生产高含量番茄红素的着色固体油树脂和油，其附加值高，使用的是天然食品废料（番茄渣）。
