Department of Organic Chemistry, Faculty of Chemistry and Technology, University of Split, Ruđera Boškovića 35, 21000 Split, Croatia.
Molecules. 2022 Oct 21;27(20):7131. doi: 10.3390/molecules27207131.
The volatile organic compounds (VOCs) of fresh (FrCC) and air-dried (DrCC) and fresh (FrEA) and air-dried (DrEA) from the Adriatic Sea were investigated by headspace solid-phase microextraction (HS-SPME) and hydrodistillation (HD) and analysed by gas chromatography and mass spectrometry (GC-MS). In HS-FrCC and HS-DrCC, aliphatic compounds were dominant, with decan-5-ol as the most abundant in HS-FrCC, but in HS-DrCC pentadecane dominated. Monoterpenes (β-cyclocitral, β-citral, and β-cyclohomocitral) and sesquiterpenes (cubenol) were abundant in HS-FrCC. Notable differences between fresh and air-dried samples were found for benzene derivatives. Fatty acids and their derivatives were the most abundant in HD-FrCC and HD-DrCC. In HS-FrEA and HS-DrEA, saturated aliphatic compounds as well as unsaturated aliphatic compounds (particularly hexan-1-ol and ()-hex-3-en-1-ol) predominantly showed decrements after drying. Pentadecane, heptadecane, pentadecanal, and hexan-1-ol were predominant in HD-FrEA, and their percentage decreased in HD-DrEA. The percentage of monoterpenes decreased after drying, but the percentages of diterpenes and especially sesquiterpenes increased. δ-Selinene was the major terpene and the most abundant in HD-DrEA. A significant increment after drying could be noticed for fatty acids and their derivatives. The great diversity of identified VOCs among these two macroalgae supports their different botanical classifications.
采用顶空固相微萃取（HS-SPME）和水蒸馏（HD）法对新鲜（FrCC）和风干（DrCC）以及新鲜（FrEA）和风干（DrEA）的亚得里亚海的挥发性有机化合物（VOCs）进行了研究，并通过气相色谱和质谱（GC-MS）进行了分析。在 HS-FrCC 和 HS-DrCC 中，脂肪族化合物占主导地位，其中 HS-FrCC 中癸烷-5-醇含量最丰富，但在 HS-DrCC 中十五烷占主导地位。单萜（β-环柠檬醛、β-柠檬醛和β-环高柠檬醛）和倍半萜（古巴醇）在 HS-FrCC 中含量丰富。在新鲜和风干样品之间发现了苯衍生物的显著差异。脂肪酸及其衍生物是 HD-FrCC 和 HD-DrCC 中含量最丰富的物质。在 HS-FrEA 和 HS-DrEA 中，饱和脂肪族化合物以及不饱和脂肪族化合物（特别是己烷-1-醇和（）-己-3-烯-1-醇）在干燥后主要表现出减少。十五烷、十七烷、十五醛和己烷-1-醇是 HD-FrEA 的主要成分，其在 HD-DrEA 中的比例下降。干燥后单萜的百分比下降，但二萜和特别是倍半萜的百分比增加。δ-环柠檬烯是主要的萜烯，在 HD-DrEA 中含量最丰富。干燥后脂肪酸及其衍生物的百分比显著增加。这两种大型藻类中鉴定出的 VOC 种类繁多，支持了它们不同的植物分类。
