This chapter covers the technology used for processing peanut oil. It starts by explaining the pretreatment technology and peanut pressing technology for high temperature and cold pressing peanut oil. It then discusses the peanut oil extraction technology, which includes leaching and separation technology.
What is cold pressed peanut oil?
Cold pressed peanut oil is composed mostly of unsaturated fatty acids, predominantly oleic and linoleic acids. Moreover, the oil is also rich in bioactive components such as tocopherols, phenolic acids, and phytosterols. Cold pressed peanut meal, also known as defatted peanut meal or pressed peanut meal, is a by-product of peanut oil extraction.
How is cold pressed peanut oil extracted?
Commercial cold pressed extraction of peanut oil is carried out using a twin-screw press at temperatures below 60°C ( Wang, Liu, Hu, et al., 2016; Zheng, Ren, Su, Yang, & Zhao, 2013 ). Lastly, a frame filter is used to press and filter three times under 30°C to obtain the cold pressed peanut oil ( Wang, Liu, Hu, et al., 2016 ).
How is peanut oil processed?
Only four plants process peanut oil in the United States. Peanut oil is processed by conventional caustic refining, adsorbent bleaching, and deodorization. The food uses of peanut oil and protein are reviewed in this article. Abstract This article reviews the production, processing, and food uses of peanut oil and protein.
