Sustainable extraction methods for natural extracts are crucial for mitigating environmental impact.Strategies that focus on waste reduction and resource efficiency contribute to long-term conservation.Hemp seeds,whic...Sustainable extraction methods for natural extracts are crucial for mitigating environmental impact.Strategies that focus on waste reduction and resource efficiency contribute to long-term conservation.Hemp seeds,which were previously treated as waste product,are now valued for their nutrition and functional properties.This study investigated sustainable extraction methods for obtaining natural extracts from hemp seeds,with a focus on reducing environmental impact through efficient resource utilization and waste reduction.The extraction methods compared included supercritical fluid extraction(SFE),Soxhlet extraction(SOX),ultrasound-assisted extraction(UAE),cold maceration(CM),and cold pressing(CP).The contents of antioxidants,total phenols,and fatty acids in the extracts were analyzed via gas chromatography-mass spectrometry(GC-MS).The extracts were subsequently formulated into organogels to evaluate the stability of the fatty acids.The results showed that SFE and CP were the most efficient and environmentally friendly methods,with SFE allowing complete separation of the solvent from the extract.CP was also found to be effective and environmentally friendly.The study confirmed that formulating extracts in organogels effectively inhibited fatty acid oxidation,although a reduction in fatty acid content was observed during gel production.Overall,the formulation of extracts in organogels increased their stability,especially in preventing fatty acid degradation.展开更多
基金Support from the Slovenian Research Agency through grant P2-0046 L2-3175 is gratefully acknowledgedthe funding within the project‘Upgrading National Research Infrastructures—RIUM’cofinanced by the Republic of Slovenia,the Ministry of Higher Education,Science and Innovation,and the European Union from the European Regional Development Fund.
文摘Sustainable extraction methods for natural extracts are crucial for mitigating environmental impact.Strategies that focus on waste reduction and resource efficiency contribute to long-term conservation.Hemp seeds,which were previously treated as waste product,are now valued for their nutrition and functional properties.This study investigated sustainable extraction methods for obtaining natural extracts from hemp seeds,with a focus on reducing environmental impact through efficient resource utilization and waste reduction.The extraction methods compared included supercritical fluid extraction(SFE),Soxhlet extraction(SOX),ultrasound-assisted extraction(UAE),cold maceration(CM),and cold pressing(CP).The contents of antioxidants,total phenols,and fatty acids in the extracts were analyzed via gas chromatography-mass spectrometry(GC-MS).The extracts were subsequently formulated into organogels to evaluate the stability of the fatty acids.The results showed that SFE and CP were the most efficient and environmentally friendly methods,with SFE allowing complete separation of the solvent from the extract.CP was also found to be effective and environmentally friendly.The study confirmed that formulating extracts in organogels effectively inhibited fatty acid oxidation,although a reduction in fatty acid content was observed during gel production.Overall,the formulation of extracts in organogels increased their stability,especially in preventing fatty acid degradation.
