Supercritical CO2 extraction of terpenoids from Cascade hops

啤酒花是一种多年生植物，其球果被用来酿造啤酒。这些啤酒花有精油，主要是萜类。常用的精油提取方法有庚烷溶剂萃取法和水蒸气蒸馏法，但这两种方法都会影响最终产品的质量。此外，所获得的提取物中葎草烯和月桂烯的含量和纯度仍然是一个挑战。此外，对石竹烯和法尼烯的提取还知之甚少。该项目的主要目的是利用超临界CO2萃取技术，一种环保的“绿色”技术，从Aratinga公司提供的Cascade啤酒花中提取葎草烯、石竹烯、月桂烯和法尼烯。超临界萃取以二氧化碳为溶剂，萃取的葎草烯、石竹烯、月桂烯和法尼烯容易被分离，得到易于表征的产物。超临界萃取的结果将在收率和产品质量方面与常规溶剂萃取进行比较。高产量的纯葎草烯、石竹烯、月子烯和法尼烯将使它们作为加拿大酿酒厂的原料进一步商业化，并将加强加拿大的农业和加工部门。

Hops Humulus lupulus are perennial plants, which cones have been used for beer making. These hops have essential oils, mainly terpenoids. Common extraction methods of essential oils are solvent extraction with heptane or steam distillation but both methods affect the quality of the final product. Also, the amount and purity of humulene, and myrcene in the extracts obtained are still a challenge. Furthermore, little is known on the extraction of caryophyllene, and farnesene. The main objective of this project is to use supercritical CO2 extraction, an environmentally-friendly "green" technology, to extract humulene, caryophyllene, myrcene and farnesene from Cascade hops provided by Aratinga Inc. Supercritical extraction using carbon dioxide as the solvent allows easy separation of the solvent from the extracted humulene, caryophyllene, myrcene and farnesene, leaving a product that is easy to characterize. Results from supercritical extraction in terms of yield and product quality will be compared to conventional solvent extraction. A high yield of pure humulene, caryophyllene, myrcene and farnesene will allow their further commercialization as ingredients to the brewery industry produced in Canada and will strengthen Canada's agricultural and processing sectors.