Listed in Issue 175


RODRIGUEZ-MONOZ and COLLEAGUES,  Centro de Estudios Academicos sobre Contaminacion Ambiental, Facultad de Quimica, Universidad Autonoma de Queretaro, Queretaro, Qro, 76010, Mexico obtained lycopene-rich oleoresins from two tomato varieties.



Natural oleoresins rich in lycopene were obtained from two varieties of tomato (Zedona and Gironda) and their nutraceutical potential (antioxidant and antimutagenic capacity) was evaluated.


Both oleoresins had a high content of lycopene, 58.33+/-1.67 mg/g (Zedona) and 63.97+/-0.80 mg/g (Gironda). The antioxidant activity (AA) of the oleoresins by beta-carotene method were 56.4-74.5% (Zedona) and 51-72.8% (Gironda), while when using the free radical stable 2,2-diphenyl-picryl-hydrazyl (DPPH) method, the antiradical activity (ARA) was determined to be 18.2-32.7% (Zedona) and 16.6-26.7% (Gironda) for the concentrations tested that of 200-400 microM equivalents of lycopene. The antimutagenic activity of the oleoresins was tested against aflatoxin B1 (AFB1) using the microsuspension assay, both varieties had a very high antimutagenic potential against AFB1 (60-66%).


These results suggest the non commercial red tomatoe (NCRT) can be taken advantage to obtaining rich oleoresin in lycopene with a nutraceutical value.


Rodriguez-Munoz E, Herrera-Ruiz G, Pedraza-Aboytes G and Loarca-Pina G. Antioxidant capacity and antimutagenic activity of natural oleoresin from greenhouse grown tomatoes (Lycopersicon esculentum). Plant Foods for Human Nutrition. 64(1): 46-51. Mar 2009.

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