Refinement of Peony Seed Oil and Analysis of Its Physicochemical Properties

Abstract

Abstract: Refining process of peony seed oil and changes of its physicochemical characteristics during the process were analyzed in this study. The results showed that the gum content and acid value are reduced obviously after hydration degumming and alkali refining deacidification,and the lecithoid content in degummed oil and acid value are 0.017 g/100g and 0.33 mg KOH/g respectively in deacidified oil. Decoloring rate is high under double-decoloring process of activated clay. The deacidified oil is clear and yellowy. The peroxid was reduced during the decoloring process,and lecithoid is cut down to lower level at the same time. Iodine value,saponification value and refraction index are not changed ultimately in refining process,and the components and contents of fatty acid suffer little effects.

Key words: peony seed oil, refining, physicochemical properties, analysis

BAI Xi-Ting, ZHU Wen-Xue, LUO Lei, ZHOU Qiu-Xiang, LIU Zhen-Zhen, GUO Cheng-Ming. Refinement of Peony Seed Oil and Analysis of Its Physicochemical Properties[J]. FOOD SCIENCE, 2008, 29(8): 351-354 https://doi.org/

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Refinement of Peony Seed Oil and Analysis of Its Physicochemical Properties

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