Morpho-anatomical, and chemical characterization of some calcareous Mediterranean red algae species

Ismail, Mona M.; Ismail, Gehan A.; Elshobary, Mostafa E.

doi:10.1186/s40529-023-00373-0

Botanical Studies

Table 5 Elements and calcium carbonate content of the studied calcareous species*

From: Morpho-anatomical, and chemical characterization of some calcareous Mediterranean red algae species

Element	Cu	Cd	Cr	Mn	Ni	Pb	Zn	Na	Ca	K	Mg	Fe	CaCO₃
Season	µg/g							mg/g
C. officinalis (winter)	0.043 ± 0.01	1.469 ± 0.6	0.004 ± 0.0	85.066 ± 1.32	0.004 ± 0.0	32.186 ± 0.75	35.392 ± 1.15	4.191 ± 0.21	12.352 ± 0.12	21.154 ± 1.04	16.335 ± 0.62	0.695 ± 0.08	2.247^a ± 0.41
C. officinalis (autumn)	0.064 ± 0.01	5.530 ± 0.11	0.009 ± 0.0	108.289 ± 1.22	0.009 ± 0.0	25.749 ± 0.45	49.096 ± 1.75	5.827 ± 0.32	14.704 ± 0.14	16.923 ± 1.22	22.715 ± 0.43	0.591 ± 0.03	1.725^b ± 0.32
C. officinalis (summer)	0.028 ± 0.001	3.112 ± 0.31	0.003 ± 0.0	58.164 ± 1.02	0.003 ± 0.0	9.170 ± 0.32	4.962 ± 0.55	2.865 ± 0.74	11.499 ± 0.11	6.027 ± 0.84	11.169 ± 0.71	0.560 ± 0.01	1.617^b ± 0.25
C. officinalis (spring)	0.147 ± 0.02	1.196 ± 0.02	0.002 ± 0.0	50.776 ± 0.82	0.2880.01	22.478 ± 0.30	25.896 ± 0.45	2.501 ± 0.41	22.530 ± 0.08	14.774 ± 0.78	9.751 ± 0.94	0.615 ± 0.03	1.642^b ± 0.15
J. ruben (winter)	0.054 ± 0.02	4.076 ± 0.31	0.005 ± 0.0	56.525 ± 0.62	0.005 ± 0.0	21.183 ± 0.26	40.983 ± 0.85	1.648 ± 0.52	12.919 ± 0.12	13.923 ± 1.80	10.855 ± 0.32	0.988 ± 0.05	1.311^c ± 0.22
J. ruben (autumn)	0.0160.002	0.111 ± 0.002	0.002 ± 0.0	25.878 ± 0.12	0.002 ± 0.0	9.926 ± 0.12	22.720 ± 0.45	0.755 ± 0.33	10.860 ± 0.07	6.524 ± 0.32	4.970 ± 0.94	0.686 ± 0.06	1.488^b ± 0.09
J. ruben (summer)	0.200 ± 0.05	5.005 ± 0.31	0.020 ± 0.0	113.514 ± 0.94	0.020 ± 0.0	6.607 ± 0.09	94.535 ± 1.25	3.310 ± 0.21	20.898 ± 0.16	4.342 ± 0.56	21.798 ± 0.45	2.874 ± 0.08	1.297^c ± 0.32
Amphiroa rigida (spring)	0.0)64 ± 0.01	3.707 ± 0.21	0.006 ± 0.0	15.211 ± 0.11	0.006 ± 0.0	6.072 ± 0.05	56.447 ± 0.95	5.940 ± 0.18	13.479 ± 0.10	33.991 ± 1.64	2.921 ± 0.21	0.669 ± 0.04	1.120^c ± 0.17

^*Values are means of three replicates ± SD

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