Chemical composition and heavy metal content of Chilean seaweeds: Potential applications of seaweed meal as food and feed ingredients

Véliz, Karina; Toledo, Pedro; Araya, Michael; Gómez, María Fernanda; Villalobos, Vieia; Tala, Fadia

doi:10.1016/j.foodchem.2022.133866

Cited by 22 publications

(6 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, these seaweeds should be monitored for heavy metals if they are used in food products. In summary, the contents of As, Hg, and Pb were below the limits set for food and feed ingredients with the Health Risk Assessment results supporting this [40]. Despite the limited research, the Chilean Health Ministry is developing risk studies on heavy metals in marine food resources that includes edible algae and their by-products, and several projects in Chile are focused on reducing the risk of the accumulation of heavy metals and the presence of pathogenic microorganisms in edible seaweeds.…”

Section: Bioaccumulation Of Heavy Metals and Microbial Pathogens By E...mentioning

confidence: 89%

“…Regarding the contents of nitrogen-free extract, values were between 31.9 ± 12.0% in M. pyrifera and 61.2 ± 6.0% in C. chamissoi . In relation to mineral contents (Na, K, Ca, Mg, P, Fe, Mn, Cu, Zn, Mo, Se), in general, they were within the Recommended Daily Allowance (RDA) according to the Commission Directive 2008/100/EC [ 40 ].…”

Section: Nutritional Composition and Bioactive Compounds In Edible Se...mentioning

confidence: 99%

See 1 more Smart Citation

Seaweeds in Food: Current Trends

Rogel-Castillo,

Latorre-Castañeda,

Muñoz-Muñoz

et al. 2023

Plants

View full text Add to dashboard Cite

Edible seaweeds are an excellent source of macronutrients, micronutrients, and bioactive compounds, and they can be consumed raw or used as ingredients in food products. However, seaweeds may also bioaccumulate potentially hazardous compounds for human health and animals, namely, heavy metals. Hence, the purpose of this review is to analyze the recent trends of edible seaweeds research: (i) nutritional composition and bioactive compounds, (ii) the use and acceptability of seaweeds in foodstuffs, (iii) the bioaccumulation of heavy metals and microbial pathogens, and (iv) current trends in Chile for using seaweeds in food. In summary, while it is evident that seaweeds are consumed widely worldwide, more research is needed to characterize new types of edible seaweeds as well as their use as ingredients in the development of new food products. Additionally, more research is needed to maintain control of the presence of heavy metals to assure a safe product for consumers. Finally, the need to keep promoting the benefits of seaweed consumption is emphasized, adding value in the algae-based production chain, and promoting a social algal culture.

show abstract

Section: Bioaccumulation Of Heavy Metals and Microbial Pathogens By E...mentioning

confidence: 89%

Section: Nutritional Composition and Bioactive Compounds In Edible Se...mentioning

confidence: 99%

Seaweeds in Food: Current Trends

Rogel-Castillo,

Latorre-Castañeda,

Muñoz-Muñoz

et al. 2023

Plants

View full text Add to dashboard Cite

show abstract

“…Finally, in terms of proximal composition, the seaweeds analyzed in this study are suitable for human consumption. Véliz et al [49] stated that the flours made from 11 species of seaweeds from Chile possessed chemical compositions suitable for use as ingredients in human and animal diets, including Ulva sp. for green algae; Durvillaea incurvata, Lessonia spicata, L. berteroana, Lessonia trabeculata, and M. pyrifera for brown algae; and Gracilaria chilensis, C. chamissoi, Cryptonemia obovata, Sarcodiotheca gaudichaudii, and Acrosorium sp.…”

Section: Proximal Compositionmentioning

confidence: 99%

Biochemical and Nutritional Characterization of Edible Seaweeds from the Peruvian Coast

Arakaki

Ramos

Huaynate

et al. 2023

Plants

View full text Add to dashboard Cite

In Peru, the number of species of edible seaweeds within the genera Chondracanthus, Porphyra (hereafter P.), Pyropia (hereafter Py.), and Ulva has not been fully established, nor is there a significant level of information available related to their chemical and nutritional composition. This study involved the biochemical analysis of species belonging to ten genera of macroalgae, known edible and some of which have the potential to be used as food, including six red (Callophyllis, Chondracanthus, Mazzaella, Porphyra, Pyropia, and Rhodymenia), two green (Ulva and Codium), and two brown (Eisenia and Lessonia) species collected along the Peruvian coast (6°–17° S). In the evaluation of 37 specimens, differences were found in the proximal composition, amino acid composition, and fatty acid profiles, which were specific to subgroups and supported their taxonomic classification, mainly at the order level. The red algae Porphyra/Pyropia (Bangiales) had the highest average percentage of protein (24.10%) and carbohydrates (59.85%) and the lowest percentage of ash (7.95%). Conversely, the brown alga Eisenia (Laminariales) had the lowest average percentage of protein, with different values related to the structure: 14.11% at the level of the frond and 9.46% at the level of the stipe. On the other hand, Bryopsidales green algae showed the highest average percentages of lipids (5.38%). The moisture percentages ranged from 4 to 16%, and no relevant significant differences were shown between the orders. The characteristic amino acids in all of the studied groups were glutamic acid, aspartic acid, alanine, and leucine. The highest average of the essential amino acids ratio was obtained for the Gigartinales red algae (48.65%), and the highest values of the essential amino acid index (EAAI) were obtained for the Ulvales, Laminariales, Gigartinales, and Rhodymeniales algae (EAAI > 0.92). The highest average relative percentage of fatty acids was obtained for polyunsaturated fatty acids, followed by saturated fatty acids. The major component of the ω6 fatty acids from red and brown algae was arachidonic acid (C20:4n − 6). The highest level of ω3 fatty acids was observed for the eicosapentaenoic acids (EPA) in red algae. The highest median ω6/ω3 ratio was displayed by the red alga Callophyllis variegata (Gigartinales). A detailed knowledge of edible seaweeds, and those considered potentially edible, would help to diversify the diet based on macroalgae in Peru.

show abstract

“…Two brown seaweed species that are abundant along the entire coastline of Chile contain significant amounts of alginates. In D. antarctica, typically between 10-20% and sometimes even around 50% of the total dry weight are alginates [16,17], whereas L. trabeculata was reported to contain similar amounts of alginates [18]. Therefore, both seaweed species would be possible metal cation accumulaters when treating aqueuos solutions with adsorption processes using these biosorbents.…”

Section: Introductionmentioning

confidence: 99%

Selection of Operation Conditions for a Batch Brown Seaweed Biosorption System for Removal of Copper from Aqueous Solutions

Hansen,

Gutiérrez,

Valencia

et al. 2023

Metals

View full text Add to dashboard Cite

Heavy metal exposure from wastewater is an important environmental issue worldwide. In the search for more efficient treatment technologies, biosorption has been presented as an alternative for contaminant removal from wastewaters. The aim of this work is to determine the operation parameters of copper adsorption followed by biosorbent regeneration. The algae Durvillaea antarctica and Lessonia trabeculata were used as biosorbents in batch experiments. These biosorbents were exposed to different conditions, such as pH, copper concentration, exposure time, mass-to-volume ratios and regeneration reagents. Batch sorption tests revealed an adequate pH of 4.5–5.0. The selected biosorbent was D. antarctica due to a considerably higher copper retention capacity. As a regenerating reagent, sulfuric acid was more efficient. For diluted copper solutions (10 to 100 mg L−1), a biosorbent particle size of between 1.70 and 3.36 mm showed better retention capacity than larger particles and a biosorbent mass-to-volume ratio of 10 g L−1 was desirable for these metal concentrations.

show abstract

Chemical composition and heavy metal content of Chilean seaweeds: Potential applications of seaweed meal as food and feed ingredients

Cited by 22 publications

References 34 publications

Seaweeds in Food: Current Trends

Seaweeds in Food: Current Trends

Biochemical and Nutritional Characterization of Edible Seaweeds from the Peruvian Coast

Selection of Operation Conditions for a Batch Brown Seaweed Biosorption System for Removal of Copper from Aqueous Solutions

Contact Info

Product

Resources

About