Distribution and Role of Oct-1-en-3-ol in Marine Algae

Jerković, Igor; Radman, Sanja; Jokić, Stela

doi:10.3390/compounds1030011

Cited by 5 publications

(3 citation statements)

References 54 publications

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“…The short-chain alcohols ethanol, hexan-1-ol, octan-1-ol, and oct-1-en-3-ol were the most abundant (Tables 1 and 2). Previous studies showed that the oxylipin oct-1-en-3-ol is a defence compound in marine algae [18][19][20].…”

Section: Headspace Volatilome Variations Of C Spongiosusmentioning

confidence: 99%

Seasonal Monitoring of Volatiles and Antioxidant Activity of Brown Alga Cladostephus spongiosus

et al. 2023

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Cladostephus spongiosus was harvested once a month during its growing season (from May to August) from the Adriatic Sea. Algal volatile organic compounds (VOCs) were obtained by headspace solid-phase microextraction (HS-SPME) and hydrodistillation (HD) and analysed by gas chromatography and mass spectrometry (GC-MS). The effects of air drying and growing season on VOCs were determined. Two different extraction methods (ultrasound-assisted extraction (UAE) and microwave-assisted extraction (MAE)) were used to obtain ethanolic extracts of C. spongiosus. In addition, the seasonal antioxidant potential of the extracts was determined, and non-volatile compounds were identified from the most potent antioxidant extract. Aliphatic compounds (e.g., pentadecane) were predominantly found by HS-SPME/GC-MS. Hydrocarbons were more than twice as abundant in the dry samples (except in May). Aliphatic alcohols (e.g., hexan-1-ol, octan-1-ol, and oct-1-en-3-ol) were present in high percentages and were more abundant in the fresh samples. Hexanal, heptanal, nonanal, and tridecanal were also found. Aliphatic ketones (octan-3-one, 6-methylhept-5-en-2-one, and (E,Z)-octa-3,5-dien-2-one) were more abundant in the fresh samples. Benzene derivatives (e.g., benzyl alcohol and benzaldehyde) were dominant in the fresh samples from May and August. (E)-Verbenol and p-cymen-8-ol were the most abundant in dry samples in May. HD revealed aliphatic compounds (e.g., heptadecane, pentadecanal, (E)-heptadec-8-ene, (Z)-heptadec-3-ene), sesquiterpenes (germacrene D, epi-bicyclosesquiphellandrene, gleenol), diterpenes (phytol, pachydictyol A, (E)-geranyl geraniol, cembra-4,7,11,15-tetraen-3-ol), and others. Among them, terpenes were the most abundant (except for July). Seasonal variations in the antioxidant activity of the ethanolic extracts were evaluated via different assays. MAE extracts showed higher peroxyl radical inhibition activity from 55.1 to 74.2 µM TE (Trolox equivalents). The highest reducing activity (293.8 µM TE) was observed for the May sample. Therefore, the May MAE extract was analysed via high-performance liquid chromatography with high-resolution mass spectrometry and electrospray ionisation (UHPLC-ESI-HRMS). In total, 17 fatty acid derivatives, 9 pigments and derivatives, and 2 steroid derivatives were found. The highest content of pheophorbide a and fucoxanthin, as well as the presence of other pigment derivatives, could be related to the observed antioxidant activity.

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Section: Headspace Volatilome Variations Of C Spongiosusmentioning

confidence: 99%

Seasonal Monitoring of Volatiles and Antioxidant Activity of Brown Alga Cladostephus spongiosus

et al. 2023

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“…Aliphatic compounds were dominant in both HS-FrPF (56.24 %, f1; 66.00 %, f2) and HS-DrPF (65.16 %, f1; 37.38 %, f2) (Figure 1) samples analysed with both fibres with octan-3-one (HS-FrPF, f1) and heptadecane (HS-FrPF, f2; HS-DrPF, both fibres) as two most abundant compounds (Figure 2). Octan-3-one, fatty acid derivative known as C 8-oxylipin, [15] was identified only in HS-FrPF (24.02 %, f1; 15.39 %, f2). This compound was not detected after airdrying probably because of its high volatility.…”

Section: Headspace Composition Of Vocs Isolated By Hs-spmementioning

confidence: 99%

“…In both samples, the group of aliphatic compounds predominated with 44.99 % in HD-FrPF and 36.67 % in HD-DrPF (Figure 3). Oct-1-en-3-ol, oxylipin known as global metabolome that induces the defence of marine invertebrates and algae, [15] had the greatest abundance in HD-FrPF. It decreased 30.1 times after drying probably because of its high volatility (Figure 4).…”

Section: Composition Of the Vocs Obtained By Hydrodistillationmentioning

confidence: 99%

Volatile Organic Compounds of Marine Sponge Petrosia ficiformis from the Adriatic Sea

2021

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Volatile organic compounds (VOCs) of Petrosia ficiformis were investigated for the first time. The VOCs from fresh and air-dried sponge were obtained by hydrodistillation and headspace-solid phase microextraction and they were analysed by coupled gas chromatography-mass spectrometry. Aliphatic compounds with octan-3-one (up to 24.02 %), oct-1-en-3-ol (up to 8.65 %) and heptadecane (up to 39.37 %) were the most abundant in the fresh sponge along with benzaldehyde (up to 18.59 %) and diisobutyl phthalate (up to 8.44 %). Higher percentage of N,N-dimethylmethanamine (up to 19.08 %) was found in dried sample headspace and the loss of octan-3-one and benzaldehyde and increase of benzyl alcohol (up to 18.90 %) were noted. The great difference among the fresh and dried sponge VOCs obtained by hydrodistillation was noticed for fatty acids and derivatives abundance and 1H-indole increased (up to 6.00 %) in the dried sponge. Both methods enabled obtaining more complete VOCs profile and drying significantly changed their composition.

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Aroma component analysis by HS-SPME/GC–MS to characterize Lager, Ale, and sour beer styles

Edgar Herkenhoff,

Brödel,

Frohme

2024

Food Research International

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Distribution and Role of Oct-1-en-3-ol in Marine Algae

Cited by 5 publications

References 54 publications

Seasonal Monitoring of Volatiles and Antioxidant Activity of Brown Alga Cladostephus spongiosus

Seasonal Monitoring of Volatiles and Antioxidant Activity of Brown Alga Cladostephus spongiosus

Volatile Organic Compounds of Marine Sponge Petrosia ficiformis from the Adriatic Sea

Aroma component analysis by HS-SPME/GC–MS to characterize Lager, Ale, and sour beer styles

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