寒旱农业科学2025，Vol.4Issue(5)：452-458,7.DOI:10.3969/j.issn.2097-2172.2025.05.011
超临界CO2萃取苹果籽油工艺优化及其品质分析
Optimization of Supercritical CO2 Extraction of Apple Seed Oil and Its Quality Analysis
摘要
Abstract
To systematically compare the effects of supercritical CO2 extraction and traditional solvent extraction on key physicochemical indicators of apple seed oil quality,in this study,red Fuji apple seeds were used as raw materials,and apple seed oil was extracted using two methods:supercritical CO2 extraction and petroleum ether extraction,aiming to provide scientific evidence for selecting appropriate extraction technologies and developing high-quality apple seed oil.The physicochemical properties and fatty acid composition of the extracted oils were systematically compared.The supercritical CO2 extraction process conditions were optimized through single-factor and orthogonal experiments.Results showed that extraction pressure,temperature,and extraction time had significant effects on the oil yield.The optimal extraction conditions were determined as follows:extraction pressure of 30 MPa,extraction temperature of 55℃,extraction time of 2.0 hours,and CO2 flow rate of 25 L/h.Under these conditions,the maximum oil yield reached 23.72%.Analysis of physicochemical properties revealed that the apple seed oil extracted via supercritical CO2 exhibited a lower peroxide value(0.70 g/kg)and a higher saponification value(189 mg/g),indicating better oxidative stability and a higher content of long-chain fatty acids.Fatty acid analysis showed that the fatty acid composition of apple seed oil extracted by the two methods was similar,with unsaturated fatty acids being the major components.Linoleic acid(51.973%to 52.050%)and oleic acid(36.206%to 36.293%)were the primary fatty acids.In conclusion,supercritical CO2 extraction demonstrated certain advantages in improving the quality of apple seed oil and is suitable for producing high-quality apple seed oil products.关键词
苹果籽油/超临界CO2萃取/工艺优化/理化特性/脂肪酸组成Key words
Apple seed oil/Supercritical CO2 extraction/Process optimization/Physicochemical property/Fatty acid compo-sition分类
轻工纺织引用本文复制引用
苟丽娜,曾朝珍,康三江..超临界CO2萃取苹果籽油工艺优化及其品质分析[J].寒旱农业科学,2025,4(5):452-458,7.基金项目
甘肃省农业农村厅科技项目(GNKJ-2024-42) （GNKJ-2024-42）
国家苹果产业技术体系(CARS-27-2025). （CARS-27-2025）
