Aqueous extraction processing (AEP) is a relatively benign and ecologically friendly method for the simultaneous recovery of both proteins and oils from oily food residues. It is considered a superior technique to methods such as solvent and mechanical extraction processing. The oils obtained using AEP have low phospholipid concentrations. This reduces the loss during this particular type of refining process.
The protein residue obtained by more traditional processing methods is mainly used as feedstuffs and fertilisers because it is denatured and there is the presence of residual solvent (Jiang et al., 2010).
Aqueous extraction processing would be a useful technique to consider for businesses interested in enhancing their green credentials.
References
Jiang, L., Hua, D., Wang, Z., & Xu, S. (2010). Aqueous enzymatic extraction of peanut oil and protein hydrolysates. Food and Bioproducts Processing, 88(2-3), pp. 233-238.
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