Survey of Phenolic Compounds Produced in Citrus
Table 2. Percentage and total concentrations of phenolics in Citrus and related species

Citrus limon

[The CRC # represents accession number in the Citrus Variety Collection, University of California, Riverside. Abbreviations used in table: Flav/ol, flavone/flavonol; Flavan, flavanone; Psor, psoralen; Coum, coumarin/cinnamic acid; Unkn, unknown]

Cultivar, CRC #
Plant Part		Proportion							Concentration
		Flav/ol	Flavan	Psor	Coum	Unkn	Void		Flav/ol	Flavan	Coum
		(%)							(mg/g)
Bergamot, CRC #2881
Leaf		50.2	38.8	0.6	5.1	1.6	3.7		3.90	1.92	0.12
Flavedo		51.0	16.4	8.8	10.2	12.8	0.8		5.17	1.06	0.32
Albedo		34.8	46.0	7.3	3.1	7.7	1.0		1.83	1.55	0.05
Juice		19.9	67.7	3.3	0.0	7.9	1.2		0.27	0.59	0.00
Corona Foothill Eureka, CRC #3043
Leaf		68.9	18.6	1.8	2.7	0.0	7.9		3.00	0.52	0.04
Flavedo		5.8	47.5	13.6	30.9	0.0	2.2		0.18	0.92	0.29
Albedo		11.6	67.9	1.8	10.0	6.1	2.6		0.34	1.26	0.09
Juice		4.6	80.2	0.0	11.3	3.9	0.0		0.02	0.24	0.02
Kaweah #1 Lisbon, CRC #3010
Leaf		48.4	32.6	0.0	7.4	6.2	5.3		3.34	1.44	0.16
Flavedo		21.4	62.8	2.2	6.4	6.2	1.0		1.83	3.42	0.17
Albedo		17.3	64.3	0.6	10.2	6.4	1.2		0.89	2.11	0.16
Juice		7.0	83.2	0.0	9.6	0.0	0.3		0.05	0.37	0.02
Kulu, CRC #3045
Leaf		47.7	23.5	0.0	12.0	7.5	9.3		2.41	0.76	0.19
Flavedo		36.5	35.1	0.0	16.7	8.6	3.2		0.67	0.41	0.09
Albedo		19.4	68.1	0.0	10.7	1.8	0.0		0.29	0.64	0.05
Juice		5.4	89.0	0.0	5.0	0.0	0.7		0.04	0.45	0.01
Kulu, CRC #3487
Leaf		57.3	20.6	0.0	14.5	0.0	7.6		0.95	0.22	0.07
Juice		35.1	41.0	0.0	13.8	0.0	10.1		0.08	0.06	0.01
Nicaraguan, CRC #3841
Leaf		23.0	11.1	14.4	32.5	13.0	6.0		1.58	0.49	0.69
Flavedo		17.3	12.0	23.4	31.2	14.6	1.5		1.29	0.57	0.71
Albedo		12.0	24.0	16.6	36.6	10.5	0.4		0.27	0.35	0.26
Juice		0.0	41.2	5.9	24.6	20.0	8.4		0.00	0.13	0.04
Santa Teresa #1, CRC #3894
Leaf		30.2	40.6	0.0	21.2	5.7	2.3		5.58	4.79	1.21
Flavedo		29.6	51.8	2.0	5.6	10.2	0.8		5.99	6.69	0.35
Albedo		16.1	65.3	2.4	11.6	3.4	1.1		3.22	8.33	0.71
Juice		19.7	67.9	1.9	7.0	2.5	1.0		1.53	3.38	0.17
Seedless Lisbon, CRC #3001
Leaf		68.5	21.8	0.0	0.0	7.1	2.6		4.34	0.88	0.00
Flavedo		13.0	72.9	0.8	0.0	9.4	4.0		0.65	2.34	0.00
Albedo		9.9	77.7	0.0	0.0	10.5	1.8		0.46	2.32	0.00
Juice		0.0	93.0	0.0	0.0	0.0	7.0		0.00	0.31	0.00
Unknown—Borneo, CRC #3765
Leaf		43.6	11.8	3.8	12.0	23.9	4.9		3.53	0.61	0.30
Juice		12.1	60.4	0.0	14.2	5.3	8.0		0.05	0.15	0.02
Unknown—Morocco, CRC #3155–A
Leaf		33.2	43.9	0.0	12.7	8.2	2.1		2.92	2.47	0.34
Juice		4.5	90.2	0.0	0.0	3.7	1.7		0.04	0.51	0.00

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Original posting: April 1, 1999.