Lipid composition in tomato skin supercritical fluid extracts with high lycopene content

Abstract

The use of supercritical fluid extraction is proposed for obtaining stable extracts with high added value from natural and economical sources. Lipid composition, namely, of FFA, TAG, and FAME, in tomato skin extracts with high lycopene content was determined. Separation of different classes of lipids was achieved from tomato extracts using TLC followed by transesterification and GC, and lycopene and other carotenoids were analyzed by HPLC with a photodiode array detector. In lycopene extracts obtained using supercritical fluids, no FFA were found and polyunsaturated TAG represented only 9.2% of the total TAG content.

Characterisation of oleoresins extracted from tomato waste by liquid and supercritical carbon dioxide

“…All samples had similar fatty acid methyl ester compositions (Table 3) and were characterised by high unsaturated fatty acid (UFA) percentages (80%–83%). The samples showed an abundance of mono‐ and polyunsaturated fatty acids (approximately 58–61% linoleic acid, 18–21% oleic acid and 2–5% linolenic acid), which makes these extracts very interesting from a nutritional point of view; in fact, they act as an energy reserve and play an important role as a vitamin source (Del Castillo et al , 2003). Furthermore, polyunsaturated fatty acids, particularly linoleic acid, protect the body from cardiovascular diseases (Elbadrawy & Sello, 2016).…”