Production of Monomeric Aromatic Compounds from Oil Palm Empty Fruit Bunch Fiber Lignin by Chemical and Enzymatic Methods

. 2015 Dec 22;2015:891539. doi: 10.1155/2015/891539

Compounds	0.625 mL cutinase g⁻¹ lignin		1.25 mL cutinase g⁻¹ lignin		1.875 mL cutinase g⁻¹ lignin		2.5 mL cutinase g⁻¹ lignin
Compounds	Yield	Recovery	Yield	Recovery	Yield	Recovery	Yield	Recovery
Hydroxybenzoic acid	642.83 ± 14.45^B	8.04 ± 0.18^b	557.80 ± 12.76^A	6.97 ± 0.16^a	569.66 ± 11.48^A	7.12 ± 0.14^a	542.94 ± 27.88^A	6.79 ± 0.35^a
Syringaldehyde	70.19 ± 3.31^B	0.88 ± 0.04^b	53.94 ± 1.20^A	0.67 ± 0.02^a	54.09 ± 3.00^A	0.68 ± 0.04^a	54.94 ± 4.67^A	0.69 ± 0.06^a
Vanillin	22.80 ± 1.04^A	0.29 ± 0.01^a	21.68 ± 0.48^A	0.27 ± 0.01^a	21.87 ± 0.71^A	0.27 ± 0.01^a	20.77 ± 1.12^A	0.26 ± 0.01^a
p-Coumaric acid	27.06 ± 1.20^C	0.34 ± 0.02^c	22.81 ± 1.44^B	0.29 ± 0.02^b	21.78 ± 0.65^B	0.27 ± 0.01^ab	19.69 ± 0.25^A	0.25 ± <0.00^a
Ferulic acid	50.19 ± 1.23^B	0.63 ± 0.02^b	46.94 ± 1.59^A	0.59 ± 0.02^a	46.33 ± 3.56^A	0.58 ± 0.04^a	46.93 ± 2.81^A	0.59 ± 0.04^a

Note.

^A-BDifferent alphabets in the same row indicated that there are significant differences (p < 0.05) between the yields from different enzyme concentration.

^a-bDifferent alphabets in the same row indicated that there are significant differences (p < 0.05) between the recoveries from different enzyme concentration.