Giuffrè Angelo Maria, Capocasale Marco
Università degli Studi "Mediterranea" di Reggio Calabria (Italy). Dipartimento AGRARIA.
J Oleo Sci. 2015;64(6):625-31. doi: 10.5650/jos.ess15002. Epub 2015 Apr 20.
Soxhlet-petroleum ether extraction was used to obtain oil from tomato seeds. Three tomato cultivars from South Italy (Principe Borghese, Rebelion F1 and San Marzano) were studied. Policosanol is a mixture of long chain linear fatty alcohols (n-alkanols), its content and composition was found to be highly significantly influenced by cultivar. Seven fatty alcohols were detected: docosanol (C22-ol), tricosanol (C23-ol), tetracosanol (C24-ol), pentacosanol (C25-ol), hexacosanol (C26-ol), heptacosanol (C27-ol) and octacosanol (C28-ol). The highest policosanol content was found in Principe Borghese 71.88 mg/Kg. Octacosanol was the linear alcohol present in highest quantity, i.e. 38-42% of the total linear alcohols detected in tomato seed oils (TSO). Chemometrics was applied to study the differences among cultivars. The sum of even long chained fatty alcohols was always more than 95% of the total policosanol content. One-way ANOVA and principal component analysis well differentiated the three cultivars.
采用索氏提取法用石油醚从番茄种子中提取油脂。对来自意大利南部的三个番茄品种（博尔盖塞王子、叛逆F1和圣马扎诺）进行了研究。聚二十碳烯醇是长链线性脂肪醇（正烷醇）的混合物，发现其含量和组成受品种的影响极显著。检测到七种脂肪醇：二十二烷醇（C22 -醇）、二十三烷醇（C23 -醇）、二十四烷醇（C24 -醇）、二十五烷醇（C25 -醇）、二十六烷醇（C26 -醇）、二十七烷醇（C27 -醇）和二十八烷醇（C28 -醇）。博尔盖塞王子品种的聚二十碳烯醇含量最高，为每千克71.88毫克。二十八烷醇是番茄籽油（TSO）中含量最高的线性醇，即占所检测到的番茄籽油中总线性醇的38 - 42%。应用化学计量学研究不同品种之间的差异。偶数长链脂肪醇的总和始终占聚二十碳烯醇总含量的95%以上。单因素方差分析和主成分分析能很好地区分这三个品种。
