Comparison of Physicochemical Characteristics and Antioxidant Properties in Commercial Apple Beverage Products

2021 ◽  
Vol 30 (6) ◽  
pp. 973-984
Author(s):  
Ji Soo Kim ◽  
Ha Neul Jung ◽  
Ji-Won Yang ◽  
Il Sook Choi
Keyword(s):  
Antioxidant Properties ◽  
Physicochemical Characteristics

Study of the quality and antioxidant properties of tomatoes (Solanum lycopersicum L.) under different postharvest and dehydration conditions

2020 ◽  
Vol 13 (9) ◽  
Author(s):  
María Lorena Luna-Guevara ◽  
Teresita González-Sánchez ◽  
Adriana Delgado-Alvarado ◽  
María Elena Ramos-Cassellis ◽  
José Guillermo Pérez-Luna ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Rural Communities ◽  
Antioxidant Properties ◽  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Convective Drying ◽  
Tomato Fruits ◽  
Solanum Lycopersicum L ◽  
Storage Temperatures

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

scholarly journals Evaluation of Antioxidant and Cytotoxic Effects of Liposomes Containing Pineapple Fruit Extract on Melanoma Skin Cancer (A375 Cell Line)

2020 ◽  
Author(s):  
Raziah Gholamian ◽  
Narges Nikoonahad Lotfabadi ◽  
Bibi Fatemeh Haghiralssadat
Keyword(s):  
Skin Cancer ◽  
Cell Line ◽  
Antioxidant Properties ◽  
Physicochemical Characteristics ◽  
Fruit Extract ◽  
Cytotoxic Effects ◽  
Liposome Size ◽  
Pineapple Fruit ◽  
Afm Micrographs ◽  
Student’S T

Introduction: The use of The use of nanoparticles containing antioxidant and cytotoxic plant compounds can have a special place in the treatment of melanoma. The aim of this study was to evaluate the antioxidant and cytotoxic effects of pineapple fruit extract on skin cancer. Methods: In the present experimental study, liposomal vesicles were prepared using cholesterol, soy phosphatidylcholine, and polyethylene glycol, and pineapple fruit extract was loaded in liposomes. Physicochemical characteristics were evaluated using zeta sizer, FTIR and AFM. Finally, the toxicity of different concentrations of extract and liposome-containing extract was evaluated in A-375 melanoma cell line using MTT assay. DPPH test was used to evaluate the antioxidant properties of the extract and liposomes containing extract. Statistical analysis was performed using Excel and SPSS (Ver 22) software and Duncan and Student's T-tests were used for statistical conclusion. Results: According to this study showed the encapsulation efficiency of pineapple extract containing liposome, liposome size and its surface charge were 40%, 89.9 nm and -8.8 mV, respectively. FTIR analysis and AFM micrographs also confirm that there is no interaction of the extract with its nanosystem, the spherical morphology of the liposomes and its appropriate distribution and dispersion. The toxicity level of pineapple extract is higher when had been encapsulated rather than the non-encapsulated extract on the A-375 cell line. Conclusion: Pineapple fruit extract has cytotoxic effects on A-375 cell line and the present liposomal nanocarrier can be a suitable carrier for the delivery of the extract and inhibit the growth and proliferation of these cells.

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