Enzyme-Assisted Production of Tomato Seed Oil Enriched with Lycopene from Tomato Pomace

Zuorro, Antonio; Lavecchia, Roberto; Medici, Franco; Piga, L.

doi:10.1007/s11947-012-1003-6

Cited by 72 publications

(43 citation statements)

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“…As well, many studies showed the richness of tomato seeds in nutrients: carotenoids, proteins, polyphenols, minerals, fibers and oils (Demirbas 2010;Eller et al 2010;Liadakis et al 1995;Persia et al 2003;Toor and Savage 2005;Zuorro et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Bread enriched in lycopene and other bioactive compounds by addition of dry tomato waste

2015

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The tomato processing industry generates high amounts of waste, mainly tomato skins and seeds, which create environmental problems. These residues are attractive sources of valuable bioactive components and pigments. A relatively simple recovery technology could consist of production of powders to be directly incorporated into foods. Tomato waste coming from a Romanian tomato processing unit were analyzed for the content of several bioactive compounds like ascorbic acid, β-carotene, lycopene, total phenolics, mineral and trace elements. In addition, its antioxidant capacity was assayed. Results revealed that tomato waste (skins and seeds) could be successfully utilized as functional ingredient for the formulation of antioxidant rich functional foods. Dry tomato processing waste were used to supplement wheat flour at 6 and 10 % levels (w/w flour basis) and the effects on the bread's physicochemical, baking and sensorial characteristics were studied. The following changes were observed: increase in moisture content, titratable acidity and bread crumb elasticity, reduction in specific volume and bread crumb porosity. The addition of dry tomato waste at 6 % resulted in bread with good sensory characteristics and overall acceptability but as the amount of dry tomato waste increased to 10 %, bread was less acceptable.

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Section: Introductionmentioning

confidence: 99%

Bread enriched in lycopene and other bioactive compounds by addition of dry tomato waste

2015

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“…The tomato peels have been found to be richer sources of phenolic compounds, lycopene, ascorbic acid and antioxidant activity compared to their pulp and seed fractions (Toor and Savage, 2005). In addition, tomato seeds are rich in nutrients such as carotenoids, proteins, polyphenols, minerals, fibers and oil (Zuorro et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Benakmoum et al, (2008) proposed to enrich refined olive oil and refined sunflower oil with carotenoids and lycopene from tomato peels or tomato puree in order to increase the thermal stability of these oils. Sunflower oil was applied as a substitute for organic solvents in a green ultrasound-assisted extraction of carotenoids from fresh carrots (Li et al, 2013) while Zuorro et al, (2013) produced a lycopene-enriched oil by incorporating a tomato oleoresin derived from tomato peels in oil obtained by cold pressing of the tomato seeds.…”

Section: Introductionmentioning

confidence: 99%

Effect of carotenoids, extracted from dry tomato waste, on the stability and characteristics of various vegetable oils

et al. 2018

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SUMMARY:In this study, various vegetable oils were enriched with carotenoids originating from dry tomato waste using ultrasound-assisted extraction, microwave-assisted extraction and maceration. Analyses of total carotenoids, color and oxidative stability (determined by free radical scavenger activity, peroxide value, Rancimat method and DSC analysis) were carried out. Commercial oils without enrichment were used for comparison. The results showed that the carotenoid contents of the oils increased significantly by increasing incorporation of dry tomato waste. Also, maceration proved to extract significantly higher amounts of these compounds. In some oils the extraction of dry tomato waste improved their oxidative and thermal stability while in others it caused an increase in the peroxide value and a decrease in induction time. Finally, the color parameters of the oils were significantly influenced. Enriched oils could be a potential source of bioactive compounds and might have significant antioxidant activity when ingested as part of a dietary regime. KEYWORDS:Carotenoids; Color; Extraction; Oxidative Stability; Tomato waste; Vegetable oils RESUMEN: Efecto de los carotenoides, extraídos de residuos de tomates secos, sobre la estabilidad y caracterís-ticas de aceites vegetales. En este estudio varios aceites vegetales se enriquecieron con carotenoides obtenidos a partir de residuos de tomates secos utilizando extracción asistida por ultrasonido, extracción asistida por microondas y maceración. Se llevó a cabo un análisis de los carotenoides totales, el color y la estabilidad oxidativa (determinada por la actividad captadora de radicales libres, el índice de peróxidos, el método Rancimat y el análisis DSC). Los aceites comerciales sin enriquecimiento se usaron como testigos. Los resultados mostraron que el contenido de carotenoides de los aceites aumentó significativamente al aumentar la incorporación de residuos secos de tomate. Además, la maceración demostró extraer cantidades significativamente más altas de estos compuestos. En algunos aceites, el residuo seco de tomates mejoró su estabilidad oxidativa y térmica, mientras que en otros causó un aumento en el índice de peróxido y una disminución en el tiempo de inducción. Finalmente, los parámetros de color de los aceites se vieron significativamente influenciados. Los aceites enriquecidos podrían ser una fuente potencial de compuestos bioactivos y podrían tener una actividad antioxidante significativa cuando se ingieren como parte de un régimen dietético.

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“…Indeed, tomato peels were reported to contain, on dry basis, 14–20% protein [6, 7], 40–74% lignocellulosic material [6–8], and 3–5% oleoresin, being the oil fraction from tomato peels [9, 10]. Besides, tomato seeds were shown to contain 20–40% protein [11, 12], 35–50% lignocellulosic material [7, 13], and 18–37% oil [14, 15].…”

Section: Introductionmentioning

confidence: 99%

Biorefinery cascade processing for creating added value on tomato industrial by-products from Tunisia

Kehili

Schmidt

Reynolds

et al. 2016

Biotechnol Biofuels

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BackgroundIn today’s consumer perception of industrial processes and food production, aspects like food quality, human health, environmental safety, and energy security have become the keywords. Therefore, much effort has been extended toward adding value to biowastes of agri-food industries through biorefinery processing approaches. This study focused, for the first time, on the valorization of tomato by-products of a Tunisian industry for the recovery of value-added compounds using biorefinery cascade processing.ResultsThe process integrated supercritical CO2 extraction of carotenoids within the oil fractions from tomato seeds (TS) and tomato peels (TP), followed by a batch isolation of protein from the residues. The remaining lignocellulosic matter from both fractions was then submitted to a liquid hot water (LHW) hydrolysis. Supercritical CO2 experiments extracted 5.79% oleoresin, 410.53 mg lycopene/kg, and 31.38 mg β-carotene/kg from TP and 26.29% oil, 27.84 mg lycopene/kg, and 5.25 mg β-carotene/kg from TS, on dry weights. Protein extraction yields, nearing 30% of the initial protein contents equal to 13.28% in TP and 39.26% in TS, revealed that TP and TS are a rich source of essential amino acids. LHW treatment run at 120–200 °C, 50 bar for 30 min showed that a temperature of 160 °C was the most convenient for cellulose and hemicellulose hydrolysis from TP and TS, while keeping the degradation products low.ConclusionsResults indicated that tomato by-products are not only a green source of lycopene-rich oleoresin and tomato seed oil (TSO) and of protein with good nutritional quality but also a source of lignocellulosic matter with potential for bioethanol production. This study would provide an important reference for the concept and the feasibility of the cascade fractionation of valuable compounds from tomato industrial by-products.Graphical abstractSchema of biorefinery cascade processing of tomato industrial by-products toward isolation of valuable fractions.

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Enzyme-Assisted Production of Tomato Seed Oil Enriched with Lycopene from Tomato Pomace

Cited by 72 publications

References 50 publications

Bread enriched in lycopene and other bioactive compounds by addition of dry tomato waste

Bread enriched in lycopene and other bioactive compounds by addition of dry tomato waste

Effect of carotenoids, extracted from dry tomato waste, on the stability and characteristics of various vegetable oils

Biorefinery cascade processing for creating added value on tomato industrial by-products from Tunisia

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