Table 2. Acid value of oils extracted using different solvents in mg KOH/g

Sample	Hexane	CCl₄	Petroleum ether	Acetone	Methanol
Control¹⁾	14.50±0.50^2)b3)	13.00±1.00^a	14.00±0.50^b	13.00±1.00^a	13.50±0.50^a
Cola rostrata	3.70±0.10^b	3.70±0.20^b	3.70±0.10^b	3.10±0.10^a	3.50±0.20^b
Dacryodes edulis	3.40±0.10^b	3.60±0.10^c	2.60±0.10^a	3.10±0.20^b	3.80±0.20^c
Dennettia tripetala	3.20±0.10^b	2.70±0.10^a	3.90±0.20^c	3.80±0.20^c	2.50±0.20^a
Persea americana	2.60±0.10^a	3.20±0.20^b	2.80±0.10^a	2.70±0.10^a	2.40±0.20^a

Commercial palm kernel oil (PKO).
Values are mean±SD (n=5).
Different superscript letters (^a-c) indicate significant differences (p<0.05) between values in the same row by the Duncan’s multiple range test.