Abstract
Inconsistency in the yield and quality of crude palm oil (CPO) poses a major challenge to the
competitiveness of Nigerian palm oil products. This study evaluated the influence of palm fruit
varietals on CPO yield and product aesthetics with emphasis on establishing quality parameters
and predictive relationships for tailored production. Native and improved (agricultural) palm fruit
varietals were separately and jointly processed under uniform conditions. The native varietal
yielded 0.157 L (2.62%) of CPO from a 6 L fruit volume while the agricultural varietal produced
0.511 L (8.52%), representing a threefold increase in extraction efficiency. A mixed 12 L batch of
both varietals yielded 1.5 L (12.50%), indicating a synergistic interaction beyond the additive yield
expectation. Comparative market assessments revealed marked inconsistencies in CPO aesthetics
including colour tone, clarity and phase uniformity attributable to uncontrolled stearin–olein
ratios and heterogeneous processing methods. Physicochemical analyses (free fatty acids,
peroxide, acid, iodine, saponification and cholesterol values) further distinguished varietal and
processing influences on oil quality. The study established that varietal composition critically
determines CPO yield and visual properties while process variability underlies the lack of national
product uniformity, emphasizing the potential of predictive modeling to harmonize stearin–olein
profiles for consistent quality outcomes. These findings provide a scientific basis for product
standardization, value chain optimization and branding strategies for Nigerian crude palm oil in
domestic and export markets.