| 杨丹玮1,2，刘晨星2，戴贤君1，夏其乐2,曹艳2.尿素包合法富集沙棘籽油中α-亚麻酸的研究[J].中国油脂,2026,52(3):.[YANG Danwei1,2, LIU Chenxing2, DAI Xianjun1, XIA Qile2, CAO Yan2.Enrichment of α-linolenic acid from seabuckthorn seed oil by urea inclusion method[J].China Oils and Fats,2026,52(3):.] |
| 尿素包合法富集沙棘籽油中α-亚麻酸的研究 |
| Enrichment of α-linolenic acid from seabuckthorn seed oil by urea inclusion method |
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投稿时间：2024-10-12 修订日期：2025-08-15 录用日期：2025-01-20
出版日期：2026-03-20
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| DOI：10.19902/j.cnki.zgyz.1003-7969.240593 |
| 中文关键词: α-亚麻酸 沙棘籽油 脂肪酸乙酯 化学酯交换法 尿素包合法 |
| 英文关键词:α-linolenic acid seabuckthorn seed oil fatty acid ethyl ester chemical esterification method urea inclusion method |
| 基金项目:浙江省科技计划项目（2023C04027） |
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| Author Name | Affiliation | | YANG Danwei1,2, LIU Chenxing2, DAI Xianjun1, XIA Qile2, CAO Yan2 | 1.College of Life Sciences, China Jiliang University, Hangzhou 310018, China
2.Zhejiang Key
Laboratory of Intelligent Food Logistic and Processing, Key Laboratory of Post-harvest Handling of
Fruits of Ministry of Agriculture and Rural Affairs, Key Laboratory of Postharvest Preservation and
Processing of Vegetables (Co-construction by Ministry and Province), Key Laboratory of
Fruits and Vegetables Preservation and Processing Technology Research of Zhejiang Province,
Food Science Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China |
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| 中文摘要: |
| 为了促进沙棘籽油的开发和利用，采用化学酯交换（乙酯化）法结合尿素包合法对沙棘籽油中α-亚麻酸（ALA）进行富集，以沙棘籽油脂肪酸乙酯得率及ALA乙酯（ALA-EE）含量为指标，采用单因素实验对化学酯交换法工艺条件进行优化，采用单因素实验和正交实验对尿素包合富集工艺条件进行优化。结果表明：乙酯化的最佳条件为反应时间1.5 h、反应温度70 ℃、催化剂添加量1.0%（以沙棘籽油质量计）、醇油物质的量比8∶ 1，在该条件下沙棘籽油脂肪酸乙酯得率为8182%，ALA-EE含量为33.41%；最佳尿素包合富集工艺条件为包合时间8 h、包合温度4 ℃、醇脲比（质量比）4∶ 1、酯脲比（质量比）1∶ 1，在该条件下沙棘籽油脂肪酸乙酯得率为34.60%，ALA-EE含量为42.86%，ALA含量较原料沙棘籽油的（28.10%）提高了52.53%。综上，化学酯交换法结合尿素包合法能够有效富集沙棘籽油中ALA，是一种可行性高的多不饱和脂肪酸富集技术。 |
| 英文摘要: |
| In order to promote the development and utilization of seabuckthorn seed oil, a combination of chemical esterification (ethyl esterification) with urea inclusion method was employed for α-linolenic acid (ALA) enrichment. Using seabuckthorn seed oil fatty acid ethyl ester yield and ALA ethyl ester(ALA-EE) content as indicators, single factor experiment was conducted to optimize the chemical esterification process conditions. Subsequently, the conditions of urea inclusion enrichment were optimized by single factor experiment and orthogonal experiment. The results demonstrated that the optimal ethyl esterification parameters were reaction time 1.5 h,reaction temperature 70 ℃, catalyst dosage 1.0% (based on the oil mass), and molar ratio of alcohol to oil 8∶ 1. Under these conditions, the ethyl ester yield reached 8182% with ALA-EE content at 3341%. For urea inclusion enrichment, the best conditions were inclusion time 8 h, inclusion temperature 4 ℃, alcohol-urea mass ratio 4∶ 1, and ester-urea mass ratio 1∶ 1. This optimized process achieved an ethyl ester yield of 34.60% and ALA-EE content of 42.86%, representing a 52.53% increase in ALA content compared to seabuckthorn seed oil (28.10%). In conclusion, the combination of chemical esterification with urea inclusion method can effectively enrich ALA in seabuckthorn seed oil, and it is a highly feasible method to enrich polyunsaturated fatty acid. |
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