Phytochemical composition and antioxidant activity of high-lycopene tomato (Solanum lycopersicum L.) cultivars grown in Southern Italy

2011 ◽  
Vol 127 (3) ◽  
pp. 255-261 ◽  
Author(s):  
Riadh Ilahy ◽  
Chafik Hdider ◽  
Marcello S. Lenucci ◽  
Imen Tlili ◽  
Giuseppe Dalessandro
2021 ◽  
Author(s):  
Ján Brindza ◽  
◽  
Vladimíra Horcinová Sedláčková ◽  
Olga Grygorieva ◽  
◽  
...  

Applied two preparations of alginite formed from natural bituminous rock alginite in 4 different variants into the soil (granular forms) and spraying on leaves (extracts) in 2 cultivars of Solanum lycoper-sicum L. resulted in reduced production traits on plants and fruits, increased or decreased accumulation of macro and microelements content in plants and fruits and by increasing the antioxidant activity of the fruits compared to the control variant without alginite.


Author(s):  
Armini Syamsidi ◽  
Evi Sulastri, M.Si.,Apt ◽  
Alifah Magfirah Syamsuddin

Free radicals can cause damage to human skin, so antioxidants are needed to counteract the negative effects of these free radicals, for example preparations in the form of face masks. For tomatoes (Solanum lycopersicum L.) contains nutritious substances, namely lycopene which can be useful as an antioxidant in the skin. This study aims to determine the effect of variations in kaolin and bentonite bases on physical characteristics and antioxidant activity of tomato lycopene extract clay mask, and to determine the best formula. Tomato lycopene extract (Solanum lycopersicum L.) was modified into a microemulsion preparation to keep antioxidant activity stable. Kaolin and bentonite which were used as bases had various concentrations in each formula, namely F1 15% and 2%, F2 20% and 1.5%, F3 25% and 1%, F4 30% and 0.5%, respectively. The results showed that the four clay mask preparations were homogeneous and did not change in color, shape and aroma. The pH test on the four formulas is F1 4.33 ± 0.35, F2 5.58 ± 0.24, F3 6.48 ± 0.22, F4 7.34 ± 0.08. The viscosity test on the four formulas, namely F1 20213.3 ± 140.4, F2 24133.3 ± 83.26, F3 29080 ± 105.83, F4 33293.3 ± 378.06. The spreadability test was F1 6.59 ± 0.24, F2 5.59 ± 0.16, F3 4.85 ± 0.11, F4 7.84 ± 0.05. The test time for the preparation to dry was F1 19.02 ± 0.36, F2 15.33 ± 0.54, F3 11.27 ± 0.42, F4 8.24 ± 0.50. Easy-to-clean tests i.e. F1 and F2 are very easy to clean, F3 and F4 are easy to clean. The best formula for clay masks is the F3 preparation where the concentration of kaolin is 25% and bentonite is 1%.


2017 ◽  
Vol 243 (9) ◽  
pp. 1533-1543 ◽  
Author(s):  
László Sipos ◽  
Csaba Orbán ◽  
Ildikó Bálint ◽  
László Csambalik ◽  
Anna Divéky-Ertsey ◽  
...  

KOVALEN ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 134-142
Author(s):  
Eka Surya Wahyuningsih ◽  
Syamsuddin ◽  
Prismawiryanti ◽  
Dwi Juli Pusptasari

Research on the antioxidant lycopene of tomato fruit (Solanum lycopersicum L.) blended in frying fat from catfish (Clarias sp) oil has been done. The purpose of this research is to determine the antioxidant activity of tomato lycopene before and after being grounded into frying fat and determine the quality of frying fat after being grounded with tomato lycopene. The antioxidant activity of tomato lycopene is determined by the DPPH (2,2-diphenyl-1-picrylhydrazyl) method. Analysis of frying fat quality includes determination of pH, determination of FFA (free fatty acid) levels, determination of total fat content, measurement of water content, peroxide number and organoleptic observation. Antioxidant activity of tomato lycopen was very high, namely with inhibition value of 89.79%; 90.34%; 91.49% and 92.10%. Frying fat analysis showed high antioxidant activity of lycopene tomatoes with 50.67% inhibition; 51.63%; 51.39% and 51.23%. The results of the analysis of the quality of frying fat are nearly same with SNI quality standards, except for peroxide numbers. Keywords: tomato, lycopene, antioxidants, frying fat, catfish, DPPH


Author(s):  
M. Arébalo-Madrigal ◽  
J.L. Escalante-González ◽  
J.B. Yáñez-Coutiño ◽  
M.E. Gallegos-Castro

Objetivo: Evaluar el desarrollo de plántula de tomate indeterminado bajo condiciones protegidas, aplicando  tres enraizadores  y un testigo para aumentar la producción del cultivo en la región. Diseño/metodología/aproximación: se utilizó bajo un diseño experimental en bloques completamente al azar, el cual consistió de cuatro tratamientos correspondiendo a cada uno de los bloques, donde cada bloque pertenecía a cuatro charolas de unicel de 200 cavidades con sustrato de BM2, con cuatro repeticiones cada uno, teniendo 15 unidades experimentales por tratamiento, sumando un total de 60 unidades experimentales, teniendo un total de 240 plántulas de tomate por todo el experimento. Resultados: Como resultado se obtuvo que el enraizador de Phyto Root  tuvo un gran efecto en cuanto al desarrollo de altura, grosor de tallo, numero de hojas, biomasa aérea y peso del cepellón, parámetros importantes que debe tener una plántula para su desarrollo y crecimiento al momento de trasplante a campo. Limitaciones del estudio/implicaciones: El manejo agronómico desde la siembra en charolas, es necesario que sea uniforme en todos los tratamientos y las repeticiones para tener mejores resultados en cuanto el efecto de los enraizadores. Hallazgos/conclusiones: Para obtener plántulas de buena calidad en el momento de trasplante a campo se le recomienda a la empresa y a los productores de plántulas utilizar el tratamiento de Phyto Root, ya que fue la que mejor respuesta tuvo.


Author(s):  
María Lorena Luna-Guevara ◽  
Teresita González-Sánchez ◽  
Adriana Delgado-Alvarado ◽  
María Elena Ramos-Cassellis ◽  
José Guillermo Pérez-Luna ◽  
...  

Objective: To study the effect of storage temperatures and dehydration conditions (solar and convective drying; SD, CD), on the quality, physicochemical parameters and antioxidant properties of tomato fruits. Methodology: The physicochemical characteristics pH, titratable acidity, soluble solids (°Bx) and color parameters (L*, a* and b*), were evaluated. The lycopene, carotenoids and antioxidant activity percentages retention of tomatoes fruits stored at 7 and 22 ° C for 5 days and subjected to SD (Temperature (T) of 67 °C and luminescence of 685 lum/sqf) and CD (T 70 °C, flow rates 0.5, 1.0 and 1.5 m/s), were analyzed. Results: The fruits reached humidities of 17 and 15% for SD and CD. The parameters pH, °Bx, L*, a*, b* were highest with 22°C and CD (1.5 m/s). The value of the carotenoids was higher in fruits stored at 7 ° C and subjected to CD (1.0 and 1.5 m/s) and SD with values of 83.85, 85.98 and 99.43%, respectively. The CD (0.5 m/s) and SD improved lycopene (94.37 and 95.14%) and the antioxidant activity with values of 73.06 and 97.21%. Implications: The application of solar dehydration depends on luminescence condition; however, it is inexpensive and environmentally friendly alternative. Conclusions: The results derived in a viable alternative for the conservation and commercialization of tomato fruits in rural communities


Author(s):  
Noorma Rosita ◽  
Dewi Haryadi ◽  
Tristiana Erawati ◽  
Rossa Nanda ◽  
Widji Soeratri

The aim of this study was to investigate the ability of NLC in increasing photostability of tomato extract in term of antioxidant activity. Photostability testing on antioxidant activity of samples were conducted by accelerating method using UVB radiation 32.400 joule for 21 hours radiation. Antioxidant activity was measured by DPPH method. NLC was made by High Shear Homogenization (HPH) method at 24000 rpm for 4 cycles, while conventional creame was made by low speed at 400 rpm. The product were characterized include: pH, viscosity, and particle size. There were had difference characters and physical stability. NLC had smaller size, more homogenous and more stable than conventional creame. It was known that stability of antioxidant activity of tomato extract in NLC system higher than in conventional creame. That was showed with k value, as constanta of rate scavenging activity decreasing in antioxidant power between time (Sigma 2-tail less than 0.005) of NLC and conventional creame were: 2.03x10-2 %/hour ±0.08 (3.94) and 4.71x 10-2 %/ hour ±0.23 (4.88) respectively.


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