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Extraction of Apricot (Prunus armeniaca L.) Kernel Skin Oil and Analysis of Its Nutritional Components
  • +5
  • yufeng Li,
  • Peifeng Ding,
  • Lixia Wang,
  • Dong Wei,
  • Yi Chen,
  • Yi Cheng,
  • Haisong Wang,
  • shuo wang
yufeng Li
Hebei North University

Corresponding Author:[email protected]

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Peifeng Ding
Lixia Wang
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Yi Chen
Haisong Wang
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Abstract

Apricot kernel skin (AKS) has not been fully utilized except a few used as feed. In this study, the effect of extrusion pretreatment on the extraction yield and acid value of AKS oil (AKSO) was investigated, and the physicochemical properties, the composition of fatty acids and triglycerides, the sn-2 fatty acids distribution, and the content of various active ingredients in AKSO were further analyzed for the first time. The results showed that AKS has 12.10% crude oil. AKSO contains 89.72% unsaturated fatty acids and is rich in tocopherols, phytosterols, squalene and polyphenols. After AKS was extruded, granulated, and extracted with hexane as a solvent, the acid value of AKSO was significantly reduced and the extraction yield was 11.97%, which confirmed its feasibility for the extraction of AKSO. From the point of nutrition and cost-efficiency, AKS is a very promising potential new oil-bearing resource, and AKSO can be used as a nutritional oil in food, medicine or cosmetics.