期刊
FOODS
卷 10, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/foods10123104
关键词
halophytes; herbal products; IMTA systems; saline agriculture; salinization; salt tolerant plants; sustainability
资金
- Foundation for Science and Technology (FCT)
- Portuguese National Budget [UIDB/04326/2020, UID/DTP/04138/2020, PTDC/BAA-AGR/1391/2020]
- Fundo Azul [FA-05-2017-028]
- RNEM (Portuguese Mass Spectrometry Network) [LISBOA-01-0145-FEDER-022125-IST]
- FCT through national funds FCT/MCTES [UIDB/00690/2020, 2020.04541.BD]
- FCT Scientific Employment Stimulus [CEECIND/00425/2017, CEECIND/01011/2018]
- institutional scientific employment program-contract
- Fundação para a Ciência e a Tecnologia [PTDC/BAA-AGR/1391/2020, 2020.04541.BD] Funding Source: FCT
Water extracts from sea lavender plants cultivated in greenhouse conditions and irrigated with freshwater and saline aquaculture effluents were evaluated for metabolomics and functional properties. The extracts showed strong antioxidant activity, particularly towards TBARS and tyrosinase, suggesting potential use as a food preservative or functional ingredient.
Water extracts from sea lavender (Limonium algarvense Erben) plants cultivated in greenhouse conditions and irrigated with freshwater and saline aquaculture effluents were evaluated for metabolomics by liquid chromatography-tandem high-resolution mass spectrometry (LC-HRMS/MS), and functional properties by in vitro and ex vivo methods. In vitro antioxidant methods included radical scavenging of 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2 '-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS), ferric-reducing antioxidant power (FRAP), and copper and iron chelating assets. Flowers' extracts had the highest compounds' diversity (flavonoids and its derivatives) and strongest in vitro antioxidant activity. These extracts were further tested for ex vivo antioxidant properties by oxidative haemolysis inhibition (OxHLIA), lipid peroxidation inhibition by thiobarbituric acid reactive substances (TBARS) formation, and anti-melanogenic, anti-tyrosinase, anti-inflammation, and cytotoxicity. Extract from plants irrigated with 300 mM NaCl was the most active towards TBARS (IC50 = 81 mu g/mL) and tyrosinase (IC50 = 873 mu g/mL). In OxHLIA, the activity was similar for fresh- and saltwater-irrigated plants (300 mM NaCl; IC50 = 136 and 140 mu g/mL, respectively). Samples had no anti-inflammatory and anti-melanogenic abilities and were not toxic. Our results suggest that sea lavender cultivated under saline conditions could provide a flavonoid-rich water extract with antioxidant and anti-tyrosinase properties with potential use as a food preservative or as a functional ingredient in herbal supplements.
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