Provalenta A. Tirtantyo , Martina Blümel , Claudia Welsch , Arlette Wenzel-Storjohann , Deniz Tasdemir
{"title":"Exploring the potential of Baltic macroalgae for food preservation","authors":"Provalenta A. Tirtantyo , Martina Blümel , Claudia Welsch , Arlette Wenzel-Storjohann , Deniz Tasdemir","doi":"10.1016/j.algal.2025.104141","DOIUrl":null,"url":null,"abstract":"<div><div>Despite all technological developments, food spoilage still remains a major economic, environmental and health concern. This study aimed to assess the potential of eight Baltic macroalgae for food preservation, specifically for antimicrobial and antioxidant active food packaging applications. Three brown, three red and two green macroalgae species were extracted automatically by Accelerated Solvent Extraction (ASE) and Supercritical Fluid Extraction (SFE) and evaluated for their antimicrobial effect against nine foodborne pathogens, antioxidant capacity and total phenolic content (TPC). The ASE and SFE extracts of brown algae (<em>Fucus</em> spp.) showed the highest antimicrobial and antioxidative activities and the greatest TPCs<em>. Fucus distichus</em> subsp. <em>evanescens</em> exhibited the highest inhibition against <em>Staphylococcus aureus</em> with IC<sub>50</sub> values of 2.1 μg/mL (ASE, H<sub>2</sub>O:ethanol (50:50) extract) and 4.4 μg/mL (SFE, CO<sub>2</sub>:Ethanol (50:50). The ethanolic (100 %) ASE and CO<sub>2</sub>:Ethanol (20:80) SFE extracts of <em>Fucus serratus</em> showed the best antioxidant capacity (IC<sub>50</sub>s 37.9 μg/mL (ASE) and 24.6 μg/mL (SFE)) and the highest TPCs (158 mg GAE/g (ASE) and 297.41 mg GAE/g (SFE)). Bioactive extracts were further analyzed by UPLC-MS/MS-based untargeted metabolomics. The main components of all extracts were polar lipids (galactolipids and betaine lipids), along with carotenoids, phlorotannins and chlorophylls. These results provide insights into the bioactivity and chemical diversity of Baltic macroalgae, highlighting the potential of <em>Fucus</em> spp. for food preservation.</div></div>","PeriodicalId":7855,"journal":{"name":"Algal Research-Biomass Biofuels and Bioproducts","volume":"90 ","pages":"Article 104141"},"PeriodicalIF":4.5000,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Algal Research-Biomass Biofuels and Bioproducts","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2211926425002528","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Despite all technological developments, food spoilage still remains a major economic, environmental and health concern. This study aimed to assess the potential of eight Baltic macroalgae for food preservation, specifically for antimicrobial and antioxidant active food packaging applications. Three brown, three red and two green macroalgae species were extracted automatically by Accelerated Solvent Extraction (ASE) and Supercritical Fluid Extraction (SFE) and evaluated for their antimicrobial effect against nine foodborne pathogens, antioxidant capacity and total phenolic content (TPC). The ASE and SFE extracts of brown algae (Fucus spp.) showed the highest antimicrobial and antioxidative activities and the greatest TPCs. Fucus distichus subsp. evanescens exhibited the highest inhibition against Staphylococcus aureus with IC50 values of 2.1 μg/mL (ASE, H2O:ethanol (50:50) extract) and 4.4 μg/mL (SFE, CO2:Ethanol (50:50). The ethanolic (100 %) ASE and CO2:Ethanol (20:80) SFE extracts of Fucus serratus showed the best antioxidant capacity (IC50s 37.9 μg/mL (ASE) and 24.6 μg/mL (SFE)) and the highest TPCs (158 mg GAE/g (ASE) and 297.41 mg GAE/g (SFE)). Bioactive extracts were further analyzed by UPLC-MS/MS-based untargeted metabolomics. The main components of all extracts were polar lipids (galactolipids and betaine lipids), along with carotenoids, phlorotannins and chlorophylls. These results provide insights into the bioactivity and chemical diversity of Baltic macroalgae, highlighting the potential of Fucus spp. for food preservation.
期刊介绍:
Algal Research is an international phycology journal covering all areas of emerging technologies in algae biology, biomass production, cultivation, harvesting, extraction, bioproducts, biorefinery, engineering, and econometrics. Algae is defined to include cyanobacteria, microalgae, and protists and symbionts of interest in biotechnology. The journal publishes original research and reviews for the following scope: algal biology, including but not exclusive to: phylogeny, biodiversity, molecular traits, metabolic regulation, and genetic engineering, algal cultivation, e.g. phototrophic systems, heterotrophic systems, and mixotrophic systems, algal harvesting and extraction systems, biotechnology to convert algal biomass and components into biofuels and bioproducts, e.g., nutraceuticals, pharmaceuticals, animal feed, plastics, etc. algal products and their economic assessment