1. Introduction Cashew Nut Shell Oil (CNSO) is a versatile component of the Cashew fruits’ nut. The oil which is a dark reddish-brown in colour is resident in a soft honeycomb shell, that is the pericarp of the nut. It is a natural resin that could serve as a valuable raw material for multiple applications.
How to extract cashew nut shell liquid?
1. When extracting cashew nut shell liquid from cashew nuts, three basic techniques are typically used. The roasting method, the hot oil bath method, and using a solar cooker are the three options. In addition to removing the corrosive CNSL, roasting also renders the shell brittle, which speeds up the breaking process.
How much cashew nut is exported in Nigeria?
In Nigeria, cashew nuts export has been estimated to be approximately 7 8% of the non-oil export revenue with a postulated export value ranging from 25 to 35 million US Dollar per annum (4). Cashew farming and its nut processing 2021 The Author(s).
Can cashew nut shells be used to extract oil?
Many researchers have offered explanations for how cashew nut shells can be used to extract oil. CNSL is the extraction of cashew nut shell (CNS) by various techniques. Anacardic acid (60–65%), cardol (15–20%), cardanol (10%), and traces of methyl cardol are all present in solvent-extracted CNSL.