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Effect of Carica papaya and Cucumis melo seed oils on the soybean oil stability
Carolina Me´dici Veronezi,Neuza Jorge 한국식품과학회 2018 Food Science and Biotechnology Vol.27 No.4
This study aimed to evaluate the oils of soybean (S), papaya (Pa) and melon (Me) seeds and compounds oils SPa (80:20 w/w); SMe (80:20 w/w); and SPaMe (60:20:20 w/w/w) subjected to thermoxidation. Compound oils showed lower percentages of free fatty acids in relation to others, after 20 h. With the heating process, there was an increase in the quantity of saturated and monounsaturated acids. The quantity of carotenoids decreased, except in papaya seed oil that presented significant amount of carotenoids in 20 h. In relation the tocopherols, highlighted the presence of c-tocopherol, except in the papaya oil. In 20 h, SMe and SPa still showed high amounts of tocopherols, with 76 and 85% of retention, respectively. With the thermoxidation, the amounts of phytosterols decreased. A great potential can be verified for the use of papaya and melon seed oils, in order to increase the oxidative stability of the soybean oil.
Pabline Marinho Vieira,Eduardo Veronezi,Carolina R. Silva,Lee Chen-Chen 한국식품영양과학회 2012 Journal of medicinal food Vol.15 No.6
Eugenia dysenterica DC. (Myrtaceae), popularly known in Brazil as cagaiteira, is a widespread plant species in the Brazilian Cerrado. In folk medicine, the leaves of this plant are used to treat diarrhea and dysentery. The fruits are used for fresh consumption and industrial purposes. Because of the use of this plant as a therapeutic resource and food, the present study evaluated the genotoxic, cytotoxic, antigenotoxic, and anticytotoxic effects of the lyophilized ethanolic leaf extract of E. dysenterica using the mouse bone marrow micronucleus test. The genotoxicity and antigenotoxicity of this extract were evaluated using the frequency of micronucleated polychromatic erythrocytes, and the cytotoxicity and anticytotoxicity were assessed by the polychromatic and normochromatic erythrocyte ratio. According to our results, the lyophilized ethanolic leaf extract of E. dysenterica exhibited genotoxic and cytotoxic effects at the higher doses and protection against cyclophosphamideinduced genotoxic and cytotoxic actions at all doses tested.
Andiara E. Freitas,Morgana Moretti,Josiane Budni,,Grasiela O. Balen,Sinara C. Fernandes,Patricia O. Veronezi,Melina Heller,Gustavo A. Micke,Moacir G. Pizzolatti,Ana Lu´cia S. Rodrigues 한국식품영양과학회 2013 Journal of medicinal food Vol.16 No.11
Bark infusion of Tabebuia avellanedae Lorentz ex Griseb is consumed in tropical America folk medicine for the treatment of several diseases, including depressive disorders. It was recently demonstrated that the extract from this plant has antidepressant properties. The present study was aimed at investigating the contribution of N-methyl-D-aspartate (NMDA) receptors and the L-arginine–nitric oxide (NO)–cyclic guanosine 3050-monophosphate (cGMP) pathway to the antidepressantlike action of the ethanolic extract from T. avellanedae (EET) in the tail suspension test (TST). The anti-immobility effect of the extract (30 mg/kg, orally [p.o.]) was prevented by pretreatment of mice with NMDA (0.1 pmol/site, intracerebroventicular [i.c.v.]), L-arginine (750 mg/kg, intraperitoneally [i.p.]), and sildenafil (5 mg/kg, i.p.). Additionally, the combination of MK-801 (0.01 mg/kg, p.o.), 7-nitroindazole (25 mg/kg, i.p.), and 1H-[1,2,4]oxadiazole[4,3-a]quinoxalin-1-one (ODQ) (30 pmol/site, i.c.v.) with a subeffective dose of EET (1 mg/kg, p.o.) produced a synergistic antidepressant-like effect in the TST, without causing significant alterations in the locomotor activity. Moreover, the administration of an effective dose of EET (30 mg/kg, p.o.) produced a reduction in NOx levels in the cerebral cortex. Conversely, a subeffective dose of EET (1 mg/kg, p.o.) caused no changes in the cortical NOx levels. Results suggest that the antidepressant-like effect of EET in the TST is dependent on a blockade of NMDA receptor activation and inhibition of NO-cGMP synthesis, significantly extending literature data about the antidepressant-like action of this plant and reinforcing the notion that this plant may be useful in the management of depressive disorders.