Вилучення поліфенолів з екстракту апельсинових шкірок зі застосуванням ПЛА ультрафільтраційної мембрани, отриманої методом 3D друку

• Дата: 2026
• Автори: Pini Pereira, P., Pacola Gonçalves, I., Arnaut Braz, L.V., Dzyazko, Y.S., Moser Paraiso, C., Marquetotti Salcedo Vieira , A., Bergamasco, R.
• Формат: Стаття
• Мова: Англійська
• Опубліковано: Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine 2026
• Теми: екстракт з апельсинових шкірок; поліфеноли; 3D-друк мембран; полімолочна кислота; ультрафільтрація
• Онлайн доступ: https://www.cpts.com.ua/index.php/cpts/article/view/816
• Назва журналу: Chemistry, Physics and Technology of Surface

Such biologically active compounds as polyphenols are widely used in pharmaceutical, food and cosmetic industry, since they possess high antimicrobial and antioxidant activity. These substances are recovered from plant extracts. For their concentrating, baromembrane separation is desirable, since it provides no degradation of target products. In this work, ultrafiltration membrane produced from polylactic acid (PLA) using 3D printing (fused deposition modelling technique) was applied to the recovery of polyphenols from orange peel extract. Main advantage of 3D printing is a possibility to manufacture membranes of any shape and size, which are needed for customers.  The particles with a size of several hundred nanometers and larger have been preliminarily removed from the extract to accelerate filtration. The effect of polyphenol concentration and pressure on the filtration process has been studied. As found, the rejection of polyphenols from the extract, which contains no large particles, reaches » 90 %, it is independent on pressure within the interval of 0.5–2.0 bar. The flux increases with pressure and reaches 1.7-3.2 L m–2h–1 for the most concentrated solution. In the case of pristine extract, rejection decreases with pressure. Different behavior of membrane towards extracts is explained from the point of view of concentration polarization, which results in a formation of dynamic layers, where large or small particles dominate. The transport properties of the membrane are restored after regeneration with ethanol.