Survey of Phenolic Compounds Produced in Citrus

Table 5.
Comparison of similar (shared) and dissimilar (unique) peaks observed at 285 nm (to those observed at 325 nm) in various Citrus species and cultivars

Species and cultivars	CRC#	Plant part	Peaks at 285 nm					Absorbance difference 285/325
			Shared peaks	Unique peaks	% Area major	Unique total	% Area shared
Citrus grandis
Deep Red	2347	Leaf	12	2	9.0	14.6	82.9	1.0
C. limon
Kaweah #1 Lisbon	3010	Leaf	13	1	6.6	6.6	88.0	0.7
C. medica
Citron of Commerce	3518	Leaf	5	0	0.0	0.0	83.1	0.6
Fingered	3768	Flavedo	1	1	16.1	16.1	83.9	0.3
		Leaf	12	3	2.6	6.8	84.6	0.6
India Sour	661	Leaf	10	1	13.6	13.6	77.2	0.8
C. natsudaidai
Unknown	3235	Flavedo	13	4	2.1	6.3	93.0	0.6
		Albedo	19	7	5.4	16.0	82.4	1.5
C. paradisi
Camulos	3139	Flavedo	21	4	2.9	7.7	91.7	0.9
		Albedo	8	7	1.3	4.5	94.9	3.9
		Juice	4	6	6.9	17.8	82.2	3.4
		Leaf	14	6	8.7	20.2	78.3	1.1
CRC #343	343	Leaf	15	7	20.2	33.7	64.5	0.9
C. sinensis
Bey	3406	Flavedo	24	3	1.2	3.2	92.7	0.9
		Albedo	18	3	3.1	7.6	89.9	1.2
CPB #44944A Seedling	3305	Flavedo	29	3	23.7	27.4	71.2	1.3
		Albedo	29	5	12.2	15.4	81.7	1.0
		Juice	2	2	78.0	79.5	19.0	3.5
		Leaf	6	3	35.5	42.4	57.0	3.4
CPB #44944B Seedling	3306	Flavedo	14	6	35.9	43.3	56.1	1.5
		Albedo	4	3	41.7	41.1	50.2	2.7
		Leaf	23	7	17.7	25.0	71.9	1.1
Paradise	2853	Flavedo	15	1	41.9	42.0	56.1	1.5
		Albedo	2	5	67.7	67.7	32.3	1.7
		Juice	1	2	83.9	86.2	13.8	5.1
		Leaf	24	6	11.1	15.5	80.9	1.1
Thomson	983	Flavedo	15	6	4.3	18.2	77.1	1.0
		Albedo	5	1	7.7	7.7	88.9	0.9
		Albedo	4	2	6.0	9.6	75.6	1.0
		Juice	3	1	5.9	5.9	89.7	2.4
		Leaf	16	4	2.2	6.5	93.4	0.8
Average			12	3.6	20.3	24.5	72.1	1.6

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United States Department of Agriculture
Agricultural Research Service

The material on this page is in the public domain.

Original posting: April 1, 1999.