Foundation "Prof. Antonio Imbesi", University of Messina, Piazza Pugliatti 1, 98122 Messina, Italy.
Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy.
Molecules. 2022 May 26;27(11):3431. doi: 10.3390/molecules27113431.
Recently, there has been a growing interest in the recovery of agri-food waste within the circular economy perspective. In this study, the nutritional, phytochemical, and biological features of the cold-pressed hempseed oil (HSO) and hempseed meal (HSM) of two industrial hemp varieties (USO 31 and Futura 75, THC ≤ 0.2%) were evaluated. The HSOs showed a high total phenols and flavonoid content, which were confirmed by LC-DAD-ESI-MS analysis, with rutin as the most abundant compound (56.93-77.89 µg/100 FW). They also proved to be a rich source of tocopherols (81.69-101.45 mg/100 g FW) and of a well-balanced ω-6 to ω-3 fatty acid ratio (3:1) with USO 31, which showed the best phytochemical profile and consequently the best antioxidant activity (about two times higher than Futura 75). The HSMs still retained part of the phytochemicals identified in the HSOs (polyphenols, tocopherols, and the preserved ω-6/ω-3 fatty acids ratio) and a modest antioxidant activity. Furthermore, they showed a very interesting nutritional profile, which was very rich in proteins (29.88-31.44 g/100 g FW), crude fibers (18.39-19.67 g/100 g), and essential and non-essential amino acids. Finally, only a restrained amount of anti-nutritional factors (trypsin inhibitors, phytic acid, and condensed tannins) was found, suggesting a promising re-use of these byproducts in the nutraceutical field.
最近，人们对循环经济视角下农业食品废弃物的回收产生了浓厚的兴趣。在这项研究中，评估了两种工业大麻品种（USO 31 和 Futura 75，THC≤0.2%）的冷压大麻籽油（HSO）和大麻籽粉（HSM）的营养、植物化学和生物学特性。HSOs 表现出高总酚和类黄酮含量，这通过 LC-DAD-ESI-MS 分析得到了证实，其中芦丁的含量最丰富（56.93-77.89 µg/100 FW）。它们还被证明是生育酚（81.69-101.45 mg/100 g FW）的丰富来源，并且具有良好平衡的 ω-6 到 ω-3 脂肪酸比例（3:1），其中 USO 31 的表现最好，具有最佳的植物化学特征，因此具有最佳的抗氧化活性（比 Futura 75 高出约两倍）。HSMs 仍然保留了 HSOs 中部分鉴定出的植物化学物质（多酚、生育酚和保留的 ω-6/ω-3 脂肪酸比例）和适度的抗氧化活性。此外，它们还表现出非常有趣的营养特性，富含蛋白质（29.88-31.44 g/100 g FW）、粗纤维（18.39-19.67 g/100 g）和必需和非必需氨基酸。最后，仅发现了少量的抗营养因子（胰蛋白酶抑制剂、植酸和缩合单宁），这表明这些副产品在营养保健品领域具有广阔的再利用前景。
