Saadia Hamed Aly
Lecturer
): Phytochemical Screening of Bioactive Components of the Brown Seaweed Sargassum swartzii and its Stimulatory Effect on Seed Germination of Fenugreek and Barely.
Egyptian Journal of Aquatic Biology & Fisheries • 2023
Publication Information
Authors
Aziza Nagah, Mohammed Ali, Saadia Hamed Aly, Soha Mohammed
Keywords
Seaweeds,
Sargassum swartzii,
Antioxidants,
Phenolics,
GC-MS profile,
Seed germination
Journal
Egyptian Journal of Aquatic Biology & Fisheries
Publisher
Not Available
Volume
27
Issue
2
Pages
173 – 193.
publication.type
International
Paper Link
Not Available
Supplementary Materials
Not Available
Abstract
Algae are an important raw material for the bio-based economy due to
their unique content of bioactive compounds. Therefore, this study aimed to
evaluate simple applicable extraction methods of the brown
seaweed Sargassum swarttzii and identify some of its bioactive
phytocomponents using a Gas Chromatography-Mass Spectrometry of the
most effective extract. Serial concentrations from the three
different S. swartzii extracts; autoclaved water extract (SAWE), ethanolic
extract (SEE) and cold water extract (SCWE ) were compared for their
effect on seed germination of two economic crops in Egypt; fenugreek
(Trigonella foenum-graecum L.) and barley (Hordeum vulgare L.). The total
carbohydrates, protein and lipid contents were estimated for the algal
biomass; in addition, the total phenolics, total flavonoids and total
antioxidant activity were evaluated. The results proved that the SCWE
enhanced seed germination of both plants by 5.9% in fenugreek and barely,
respectively. The SCWE improved the seedling length by 59.3% at 20%
SCWE and 41.6% at the concentration of 40% SCWE in fenugreek and
barely, respectively. Moreover, the bioactive compounds and the total
antioxidant activity increased significantly in the SCWE over the SAWE
and SEE. On top of the 32 bioactive phytocomponents detected by the GCMS of SCWE were palmitic acid, alpha-ionone, oleic acid, triacetin and
lucenin-2. Thus, SCWE could be a promising alternative to harmful
synthetic antioxidants and biofertilizers.
their unique content of bioactive compounds. Therefore, this study aimed to
evaluate simple applicable extraction methods of the brown
seaweed Sargassum swarttzii and identify some of its bioactive
phytocomponents using a Gas Chromatography-Mass Spectrometry of the
most effective extract. Serial concentrations from the three
different S. swartzii extracts; autoclaved water extract (SAWE), ethanolic
extract (SEE) and cold water extract (SCWE ) were compared for their
effect on seed germination of two economic crops in Egypt; fenugreek
(Trigonella foenum-graecum L.) and barley (Hordeum vulgare L.). The total
carbohydrates, protein and lipid contents were estimated for the algal
biomass; in addition, the total phenolics, total flavonoids and total
antioxidant activity were evaluated. The results proved that the SCWE
enhanced seed germination of both plants by 5.9% in fenugreek and barely,
respectively. The SCWE improved the seedling length by 59.3% at 20%
SCWE and 41.6% at the concentration of 40% SCWE in fenugreek and
barely, respectively. Moreover, the bioactive compounds and the total
antioxidant activity increased significantly in the SCWE over the SAWE
and SEE. On top of the 32 bioactive phytocomponents detected by the GCMS of SCWE were palmitic acid, alpha-ionone, oleic acid, triacetin and
lucenin-2. Thus, SCWE could be a promising alternative to harmful
synthetic antioxidants and biofertilizers.