4.7 Review

Recent advances in biological properties of brown algae-derived compounds for nutraceutical applications

Journal

Publisher

TAYLOR & FRANCIS INC
DOI: 10.1080/10408398.2022.2115004

Keywords

Macroalgae; health-promoting compounds; bioactivities; encapsulation; current market

Funding

  1. MICINN [RYC-2017-22891, RYC-2020-030365-I]
  2. Xunta de Galicia [EXCELENCIA-ED431F 2020/12, ED481B-2021/152, ED481A-2019/295, ED481A 2021/313]
  3. EcoChestnut Project (Erasmus+KA202)
  4. Ibero-American Program on Science and Technology (CYTED-AQUA-CIBUS) [P317RT0003]
  5. Bio Based Industries Joint Undertaking (JU) [888003 UP4HEALTH]
  6. European Union
  7. Bio Based Industries Consortium
  8. Belgium (FWO)
  9. FACCE-JPI under the ERA-NET ERA-HDHL [696295]
  10. EU
  11. FCT [UIDB/50006/2020, UIDP/50006/2020, PTDC/OCE-ETA/30240/2017, POCI-01-0145-FEDER-030240]
  12. France (INRA)
  13. Germany (BLE)
  14. Italy (MIPAAF)
  15. Latvia (IZM)
  16. Norway (RCN)
  17. Portugal (FCT)
  18. Spain (AEI)
  19. Fundação para a Ciência e a Tecnologia [PTDC/OCE-ETA/30240/2017] Funding Source: FCT

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This article reviews the bioactive compounds from brown algae and discusses their biological activities and applications in nutraceuticals. It also examines delivery strategies to overcome challenges associated with using algae-derived compounds and presents the current commercial and legal status of ingredients from brown algae.
The increasing demand for nutraceuticals in the circular economy era has driven the research toward studying bioactive compounds from renewable underexploited resources. In this regard, the exploration of brown algae has shown significant growth and maintains a great promise for the future. One possible explanation could be that brown algae are rich sources of nutritional compounds (polyunsaturated fatty acids, fiber, proteins, minerals, and vitamins) and unique metabolic compounds (phlorotannins, fucoxanthin, fucoidan) with promising biological activities that make them good candidates for nutraceutical applications with increased value-added. In this review, a deep description of bioactive compounds from brown algae is presented. In addition, recent advances in biological activities ascribed to these compounds through in vitro and in vivo assays are pointed out. Delivery strategies to overcome some drawbacks related to the direct application of algae-derived compounds (low solubility, thermal instability, bioavailability, unpleasant organoleptic properties) are also reviewed. Finally, current commercial and legal statuses of ingredients from brown algae are presented, considering future therapeutical and market perspectives as nutraceuticals.

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