Table 5.

Redistribution of n-alkane fractions in extra-heavy oil after enzymatic treatment under optimized conditions.

10	Molecular Formula	Peak Area Control	Peak Area E2	VR%	Peak Area E4	VR%	Peak Area E242	VR%
666.9	C8H18	20521877	60677294	195.7	70622559	244.1	31914129	55.5
930.9	C9H20	41639690	83232858	99.9	89184939	114.2	50432318	21.1
1228.2	C10H22	77025332	96604881	25.4	96771714	25.6	67523231	−12.3
1532.3	C11H24	124826154	118741107	−4.9	118016663	−5.5	94388129	−24.4
1828.6	C12H26	149939343	142988803	−4.6	127503319	−15.0	119400393	−20.4
2110.9	C13H28	81834307	162874095	99.0	134310401	64.1	131344208	60.5
2378.1	C14H30	91025810	96708274	6.2	74494546	−18.2	138187801	51.8
2630.6	C15H32	93209279	109261802	17.2	82077634	−11.9	83442762	−10.5
2869.1	C16H34	92807001	113065316	21.8	148850547	60.4	85016396	−8.4
3094.9	C17H36	95303442	110495600	15.9	81427802	−14.6	82632888	−13.3
3309.1	C18H38	81685600	93869710	14.9	65491676	−19.8	118353162	44.9
3512.6	C19H40	72847916	95897799	31.6	102272933	40.4	105502871	44.8
3706.5	C20H42	62070413	73961924	19.2	51194116	−17.5	91494234	47.4
3891.4	C21H44	49598459	58845946	18.6	41151854	−17.0	41616559	−16.1
4068.0	C22H46	40782024	49018759	20.2	32948861	−19.2	59807620	46.7
4237.1	C23H48	32319673	41696313	29.0	27561027	−14.7	28983448	−10.3
4399.1	C24H50	27306509	32165207	17.8	20882672	−23.5	23077775	−15.5
4554.8	C25H52	21183514	24235973	14.4	17221248	−18.7	26780442	26.4
4704.2	C26H54	16020138	21817694	36.2	15222046	−5.0	15653326	−2.3
4848.3	C27H56	15112181	14260089	−5.6	11804840	−21.9	21566349	42.7
4986.9	C28H58	10965407	10685022	−2.6	9715957	−11.4	8847915	19.3
5072.4	C29H60	5056415	4501824	−11.0	3471125	−31.4	3447995	−31.8
5122.7	C30H62	8483866	6236466	−26.5	6293331	−25.8	6368784	−24.9

VR% represents enzyme-mediated variation (increase or decrease) in the relative quantity (peak area) of n-alkane fractions.