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中国精品科技期刊2020
冉娴婷,王瑜,李立郎,等. 亚临界萃取和膜技术精制元宝枫籽油的工艺优化[J]. 食品工业科技,2025,46(1):1−11. doi: 10.13386/j.issn1002-0306.2024010160.
引用本文: 冉娴婷,王瑜,李立郎,等. 亚临界萃取和膜技术精制元宝枫籽油的工艺优化[J]. 食品工业科技,2025,46(1):1−11. doi: 10.13386/j.issn1002-0306.2024010160.
RAN Xianting, WANG Yu, LI Lilang, et al. Optimization of Subcritical Extraction and Membrane Technology for Refining Acer truncatum Seed Oil[J]. Science and Technology of Food Industry, 2025, 46(1): 1−11. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2024010160.
Citation: RAN Xianting, WANG Yu, LI Lilang, et al. Optimization of Subcritical Extraction and Membrane Technology for Refining Acer truncatum Seed Oil[J]. Science and Technology of Food Industry, 2025, 46(1): 1−11. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2024010160.

亚临界萃取和膜技术精制元宝枫籽油的工艺优化

Optimization of Subcritical Extraction and Membrane Technology for Refining Acer truncatum Seed Oil

  • 摘要: 为了提高元宝枫籽油的质量特性和储藏稳定性,对亚临界萃取得到的元宝枫籽油进行精制,以去除磷脂、过氧化物和游离脂肪酸。本文对亚临界萃取ASO的提取工艺进行优化,并对得到的原油利用膜分离技术进行脱胶精制,以膜通量,脱胶率、碘值、过氧化值、酸价为指标,对不同孔径的陶瓷膜和不同截留分子量的聚醚砜膜进行筛选。考察膜截留分子量、温度和压力对膜通量的影响;通过响应面法,确定ASO精制的最佳工艺参数。同时采用气相色谱-质谱法比较精制前后脂肪酸的含量。结果表明,当聚醚砜膜分子量为100 kD,温度44 ℃,压力1.9 MPa,ASO脱胶率为86.73%,通量为12.51 L/m2·h,碘值为116.93 g/100 g,过氧化值为0.06 g/100 g,酸价为3.66 g/100 g,与原油相比脂肪酸含量无明显损失。研究结果显示,用膜分离法脱胶是一种提高油脂品质的有效手段,本研究可为优质元宝枫籽油的生产提供技术支持。

     

    Abstract: Acer truncatum seed oil (ASO), as a new resource food, contains a large amount of valuable fatty acids (especially nerve acids). In order to improve the quality characteristics and storage stability of ASO, refining ASO obtained using subcritical extraction to remove phospholipids, peroxides, and free fatty acids. In this paper, the extraction process of subcritical extraction ASO was optimized, and the crude oil was degummed and refined by membrane separation technology. Using membrane flux, degumming rate, iodine value, peroxide value and acid value as indicators, ceramic membranes with different pore sizes and polyethersulfone membranes with different molecular weights were screened. The effects of membrane retention of molecular weight, temperature and pressure on membrane flux were investigated, and the optimal process parameters for refining ASO were determined through response surface methodology. An analysis of the fatty acid composition was conducted using gas chromatography-mass spectrometry both before and after refining. The results showed that, when the molecular weight of the polyethersulfone membrane was 100 kD, the temperature was 44 ℃, the pressure was 1.9 MPa, ASO degumming rate was 86.73%, the flux was 12.51 L/m2·h, the iodine value was 116.93 g/100 g, the peroxide value was 0.06 g/100 g, the acid value was 3.66 g/100 g, and there was no significant loss of fatty acid content compared to crude oil. The results showed that degumming by membrane separation is an effective method to improve the quality of oil, so this study can provide technical support for the production of high-quality Acer truncatum seed oil.

     

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