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Acta Alimentaria
Authors:
J. Montiel-Ventura
,
J.J. Luna-Guevara
,
M.A. Tornero-Campante
,
A. Delgado-Alvarado
, and
M.L. Luna-Guevara

The aim was to examine conditions of convective drying and spray-drying to improve preservation of lycopene content in tomatoes. The weight, size, colour, pH and °Brix values were evaluated in fresh fruit (FF) and colour (L, a, b), hue, and chrome indices were analysed from dried tomatoes, too. Tomato paste was dried (40, 50, 60, and 80 °C with times of 540, 390, 270, and 240 min) under convection conditions and pulverized. In the encapsulation treatments core material with tomato powders of 50, 60, and 70%, shell solution of maltodextrin/gum arabic 1:1, flow rate of 4, 6, 9, and 12 ml min–1, and inlet air T of 160, 170, and 180 °C were used. The physicochemical properties of FF corresponded to a degree of ripeness for consumption. The a, a/b, and hue values of dried tomatoes at 50 °C significantly correlated to red colouring and higher lycopene content (47.98±1.49 mg/100 g). The encapsulation with 50% and 60% of tomato powders, 170 °C and 9 ml min–1 treatments increased lycopene contents to 10.41 mg/100 g, 10.20 mg/100 g, and 11.51 mg/100 g, respectively. The results demonstrated that the physicochemical and functional properties were influenced by drying conditions, providing useful information for increasing the stability of lycopene in dried tomatoes.

Open access

Summary

A quantitative method using silica gel 60 HPTLC plates, automated bandwise sample application, petroleum ether-dichloromethane 9:1 as mobile phase, and automated slit-scanning densitometry has been developed for the analysis of lycopene in nutritional supplements consumed to reduce the risk of prostate cancer and other forms of cancer and cardiovascular disease. Four products containing 300 μg, 3 mg, 5 mg, or 10 mg lycopene plus other ingredients were analyzed using a ChromaDex lycopene standard. The amount of lycopene in the tested samples ranged from 77.7 to 98.1% relative to the stated label values. Accuracy was validated by spiked blank analysis, and precision by performing replicate analysis. Accuracy was found to be within 1.90% of theoretical values for the 3 mg softgels and 1.10% of theoretical values for the 10 mg softgels, and precision was 1.44% relative standard deviation (RSD) for the 10 mg softgels and 2.39% RSD for the spiked blank for the 3 mg softgels. Lycopene standards available from two other companies were analyzed and found to contain 55.6, 57.6, and 20.0% of the minimum amount expected from the stated label values.

Open access
Acta Alimentaria
Authors:
C. Cano-Molina
,
A. López-Fernández
,
N. Díaz-González
,
R. González-Barrio
,
N. Baenas
,
M.J. Periago
, and
F.J. García-Alonso

., 2020 ). Tomato ( Solanum lycopersicum L.) is a source of bioactive phytochemicals as lycopene, ascorbic acid, tocopherol, and phenolic compounds ( Chaudhary et al., 2018 ). Tomato is a climacteric fruit and continues to ripen after harvest, therefore

Open access
Acta Alimentaria
Authors:
B. Schmidt-Szantner
,
M. Gasztonyi
,
P. Milotay
, and
R. Tömösközi-Farkas

. Tomato is a significant source of lycopene, which is associated with several health benefits. Lycopene has biological and chemical properties that explain its high antioxidant activity, and especially help in the deactivation of singlet oxygen and the

Open access

, carotenoids (lycopene, β-carotene) are of special interest due to their role in reduction of the onset of several types of cancer ( G iovannucci , 1999 ) and cardiovascular ( G ammone et al., 2015 ) or neurodegenerative diseases ( R ao & R ao , 2007 ). In

Open access

functional substances. Solubilisation of phytochemicals like curcumin, resveratrol, carotenoids such as lycopene, beta-carotene, lutein, and zeaxanthin using nanoemusions was reported ( Huang et al., 2010 ). Bioavailability of essential oils can be increased

Open access

increase their oxidative stability during a 45-day storage at 4 °C. They observed significant decrease in redness (a*) of samples containing norbixin and lycopene, which can be attributed to the partial decomposition of those pigments while exerting their

Open access
Biologia Futura
Authors:
Rubina Tu¨nde Szabó
,
Mária Kovács-Weber
,
Márta Erdélyi
,
Krisztián Balogh
,
Natasa Fazekas
,
Ákos Horváth
,
Miklós Mézes
, and
Balázs Kovács

. Leal , M. , Shimada , A. , Ruíz , F. , González de Mejía , E. ( 1999 ) Effect of lycopene on lipid

Open access
Acta Veterinaria Hungarica
Authors:
Benjámin Kövesi
,
Szabina Kulcsár
,
Mátyás Cserháti
,
Márta Erdélyi
,
Zsolt Ancsin
,
Erika Zándoki
,
Miklós Mézes
, and
Krisztián Balogh

male broiler chicks . Poult. Sci. 88 , 360 – 371 . 10.3382/ps.2008-00258 Yilmaz , S. , Kaya , E. and Kisacam , M. A. ( 2017 ): The effect on oxidative stress of aflatoxin and protective effect of lycopene on aflatoxin damage . In: Abdulra

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Progress in Agricultural Engineering Sciences
Authors:
Dzsenifer Németh
,
Gábor Balázs
,
Zsanett Bodor
,
John-Lewis Zinia Zaukuu
,
Zoltán Kovács
, and
Noémi Kappel

than the self-rooted ones, also their lycopene content was higher. The vintage effect can significantly influence the organoleptic parameters of melons ( Bett-Garber et al., 2003 ). Conclusion Grafting of cucurbits is very popular today. Grafted

Open access