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. 2025 Apr 28;14(9):1539. doi: 10.3390/foods14091539

Correction: Tolpeznikaite et al. Characterization of Macro- and Microalgae Extracts Bioactive Compounds and Micro- and Macroelements Transition from Algae to Extract. Foods 2021, 10, 2226

Ernesta Tolpeznikaite 1, Vadims Bartkevics 2, Modestas Ruzauskas 3,4, Renata Pilkaityte 5, Pranas Viskelis 6, Dalia Urbonaviciene 6, Paulina Zavistanaviciute 1,7, Egle Zokaityte 1,7, Romas Ruibys 8, Elena Bartkiene 1,7,*
PMCID: PMC12072021  PMID: 40361736

In the original publication [1], changes are needed for Figure 2, because of a technical mistake in the legend. There were two identical designations for different parameters (Chlorophyll a; Chlorophyl a). This should be corrected to Chlorophyl a; Chlorophyl b. The corrected Figure 2 is provided below.

graphic file with name foods-14-01539-i001.jpg

In Table 3, because of a technical mistake, incorrect units were included (g kg−1 should be changed to mg kg−1). Because of the latter changes, corrections in Section “3. Results and Discussion” subsection “3.4. Micro- and Macroelement Concentrations in Algal Samples” should be performed. The corrected subsection “3.4. Micro- and Macroelement Concentrations in Algal Samples” is provided after Table 3.

Table 3.

Micro- and macroelement concentrations in algal extract samples.

Trace Element Algal Extract Samples
Macroalgae Microalgae
Cla Furc Ul Chlo Sp1 Sp2
Macro-elements, mg kg−1 d.m.
Na 220 ± 13 a,C 277 ± 11 b,D 517 ± 25 c,F 27.1 ± 1.3 a,A 136 ± 6 b,B 458 ± 18 c,E
Mg 140 ± 9 a,D 206 ± 14 b,E 259 ± 14 c,F 11.7 ± 0.9 a,A 15.5 ± 1.1 b,B 51.0 ± 3.2 c,C
K 975 ± 32 c,E 445 ± 21 b,D 336 ± 19 a,C 77 ± 4 a,A 110 ± 5 b,B 950 ± 29 c,E
Ca 40.2 ± 3.1 b,E 68.3 ± 4.2 c,F 18.8 ± 0.7 a,C 2.36 ± 0.14 a,A 7.17 ± 0.16 b,B 29.1 ± 1.7 c,D
Essential microelements, mg kg−1 d.m.
Cr 0.003 ± 0.001 a,A 0.042 ± 0.003 c,C 0.023 ± 0.002 b,B 0.002 ± 0.001 a,A 0.005 ± 0.002 a,A 0.056 ± 0.004 b,D
Mn 7.41 ± 0.52 c,F 1.10 ± 0.07 b,E 0.435 ± 0.021 a,D 0.028 ± 0.002 a,A 0.063 ± 0.004 b,B 0.333 ± 0.021 c,C
Fe 4.34 ± 0.31 c,E 2.66 ± 0.19 b,D 1.09 ± 0.08 a,A 2.25 ± 0.011 b,C 1.37 ± 0.009 a,B 4.73 ± 0.15 c,E
Co 0.064 ± 0.005 d,D 0.003 ± 0.001 a,A 0.006 ± 0.001 b,B 0.002 ± 0.001 a,A 0.002 ± 0.001 a,A 0.040 ± 0.003 c,C
Ni 0.301 ± 0.011 c,D 0.015 ± 0.002 b,B 0.005 ± 0.001 a,A nd nd 0.020 ± 0.001 C
Cu 0.101 ± 0.009 b,D 0.004 ± 0.001 a,A 0.202 ± 0.013 c,E 0.077 ± 0.003 b,C 0.020 ± 0.002 a,B 0.071 ± 0.005 b,C
Se 0.004 ± 0.002 a,A 0.001 ± 0.001 a,A 0.002 ± 0.001 a,A nd nd 0.004 ± 0.002 A
Non-essential microelements, mg kg−1 d.m.
As 0.334 ± 0.021 b,D 0.255 ± 0.016 a,C 0.437 ± 0.031 c,E 0.004 ± 0.002 a,A 0.002 ± 0.001 a,A 0.022 ± 0.002 b,B
V 0.006 ± 0.001 a,B 0.004 ± 0.001 a,A,B 0.004 ± 0.001 a,A,B 0.001 ± 0.001 a,A nd 0.002 ± 0.001 a,A
Rb 0.507 ± 0.026 c,F 0.252 ± 0.017 b,E 0.140 ± 0.009 a,C 0.020 ± 0.001 b,B 0.010 ± 0.001 a,A 0.181 ± 0.012 c,D
Sr 0.398 ± 0.014 b,E 0.621 ± 0.035 c,F 0.245 ± 0.011 a,C 0.017 ± 0.002 a,A 0.060 ± 0.003 b,B 0.346 ± 0.019 c,D
Mo nd 0.004 ± 0.001 a,A 0.007 ± 0.001 b,B nd 0.004 ± 0.001 a,A 0.010 ± 0.001 b,C
Ag 0.018 ± 0.001 a,A 0.098 ± 0.007 c,C 0.029 ± 0.002 b,B nd 0.034 ± 0.003 a,B 0.164 ± 0.013 b,D
Sb 0.046 ± 0.003 b,C 0.005 ± 0.001 a,A 0.163 ± 0.007 c,E nd 0.032 ± 0.003 a,B 0.098 ± 0.008 b,D
Cs nd 0.001 ± 0.000 nd nd nd nd
Ti nd nd nd nd nd 0.001 ± 0.000
Cd nd nd nd nd nd 0.001 ± 0.000
Ba 0.032 ± 0.002 b,C 0.033 ± 0.002 b,C 0.008 ± 0.001 a,B 0.001 ± 0.000 a,A 0.006 ± 0.001 b,B 0.043 ± 0.003 c,D
Pb 0.002 ± 0.001 a,A 0.003 ± 0.001 a,b,A,B 0.001 ± 0.000 a,A 0.001 ± 0.000 a,A 0.001 ± 0.000 a,A 0.002 ± 0.001 a,A
Al 0.343 ± 0.018 b,B 1.14 ± 0.01 c,C 0.111 ± 0.009 a,A nd nd 1.15 ± 0.009 C
Li 0.013 ± 0.002 a,B 0.023 ± 0.002 b,C 0.047 ± 0.003 c,D 0.002 ± 0.001 a,A 0.005 ± 0.002 a,A 0.070 ± 0.006 b,E

Cla, Cladophora rupestris; Ul, Ulva intestinalis; Furc, Furcellaria lumbricalis; Chlo, Chlorella vulgaris; Sp1, Spirulina (Arthrospira platensis) obtained from the University of Texas; Sp2, Spirulina (Ltd. “Spila“). Data are represented as means (n = 3, replicates of analysis) ± SD. a–c for the same analytical parameters, in macro- and microalgae groups, means with different letters are significantly different (p ≤ 0.05). A–F for the same analytical parameters, in all algal samples, means with different letters are significantly different (p ≤ 0.05); nd - not determined.

  • 3.4. Micro- and Macroelement Concentrations in Algal Samples

Due to a technical mistake, the concentration units were changed throughout Section 3.4 from g kg−1 to mg kg−1.

The authors state that the scientific conclusions are unaffected. This correction was approved by the Academic Editor. The original publication has also been updated.

Footnotes

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Reference

  • 1.Tolpeznikaite E., Bartkevics V., Ruzauskas M., Pilkaityte R., Viskelis P., Urbonaviciene D., Zavistanaviciute P., Zokaityte E., Ruibys R., Bartkiene E. Characterization of Macro- and Microalgae Extracts Bioactive Compounds and Micro- and Macroelements Transition from Algae to Extract. Foods. 2021;10:2226. doi: 10.3390/foods10092226. [DOI] [PMC free article] [PubMed] [Google Scholar]

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