食品科学 ›› 2005, Vol. 26 ›› Issue (5): 41-43.

• 基础研究 • 上一篇    下一篇

冷榨制取与超临界CO2萃取核桃油的氧化稳定性比较研究

 王丰俊, 王建中, 王宪昌, 王慧强   

  1. 北京林业大学生物学院
  • 出版日期:2005-05-15 发布日期:2011-09-19

Study on Oxidative Stability of Cold Pressed and Supercritical Carbon Dioxide Extract of Walnut Oil

 WANG  Feng-Jun, WANG  Jian-Zhong, WANG  Xian-Chang, WANG  Hui-Qiang   

  1. College of Biological, Beijing Forestry University
  • Online:2005-05-15 Published:2011-09-19

摘要: 核桃油中的不饱和脂肪酸含量很高,因而比较容易氧化。为了比较冷榨制取与超临界CO2萃取的核桃油的氧化稳定性,测定了它们在黑暗和光照条件下的过氧化值,并进行了感官品评。研究发现:黑暗条件下,冷榨制取的核桃油的氧化稳定性高于超临界CO2萃取的核桃油的氧化稳定性;光照条件下,超临界CO2萃取的核桃油的氧化稳定性高于冷榨制取的核桃油的氧化稳定性。根据它们氧化稳定性的不同可以选择不同的材料对产品进行包装。

关键词: 冷榨, 超临界CO2萃取, 核桃油, 氧化稳定性

Abstract: The content of unsaturated fatty acid is high, so walnut oil is easily oxidative. In order to compare the oxidative stability of cold pressed oil with the supercritical carbon dioxide extracted(SCFE) oil under light and dark conditions, the Peroxidative Value(PV) was evaluated with Sensory Evaluation. Data showed that the oxidative stability of cold pressed oil was greater than SCFE- CO 2 oil under dark storage, while in contrast, the oxidative stability of SCFE- CO 2 oil was greater than cold pressed oil under light. This conclusion was helpful to choose packing material.

Key words: cold press, supercritical carbon dioxide extract, walnut oil, oxidative stability