The techno-economic feasibility (TEA), technology readiness level (TRL), and environmental impact of producing bioactive kānuka leaf extracts using subcritical water extraction (SWE) were assessed and compared to using conventional ethanol extraction (EE). Both SWE and EE had the same TRL value from the analysis. The TEA showed that though EE required more process units, the total capital expenditure for SWE was still 3% higher than for EE. However, the manufacturing and unit cost of production were NZ$4.49 million and NZ$ 2.14/kg for SWE and NZ$4.7 million and NZ$ 5.57/kg for EE, respectively. The net present value for SWE was twice the value for EE. Sensitivity analysis revealed that the raw materials cost and product sales price were the controlling factors for profitability. Kānuka extract production with SWE was more environmentally benign than EE. Overall, producing bioactive kānuka extracts with SWE had better profitability with a shorter payback time than EE.

评估了使用亚临界水提取（SWE）生产生物活性卡努卡叶提取物的技术经济可行性（TEA），技术准备水平（TRL）和环境影响，并将其与使用常规乙醇提取（EE）进行了比较。根据分析，SWE和EE的TRL值相同。TEA显示，尽管EE需要更多的处理单元，但SWE的总资本支出仍比EE高3％。但是，SWE的制造和单位生产成本分别为449万新西兰元和2.14新西兰元/千克，EE的分别为470万新西兰元和5.57新西兰元/千克。SWE的净现值是EE的两倍。敏感性分析表明，原材料成本和产品销售价格是盈利能力的控制因素。SWE生产的卡努卡提取物比EE更具环境友好性。总体而言，与EE相比，用SWE生产具有生物活性的卡努卡提取物的利润更高，投资回收期更短。