期刊
FOOD CONTROL
卷 100, 期 -, 页码 24-27出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodcont.2019.01.009
关键词
Plant extracts; Decontamination; Mycotoxins; AFB(1)
资金
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior - Brasil (CAPES) [001]
The aim of this study was to evaluate the aqueous extracts of sweet passion fruit (Passiflora alata), araca (Psidium cattleianum), rosemary (Rosmarinus officinalis) and oregano (Origanum vulgare) for their ability to degrade aflatoxin B-1 (AFB(1)) in vitro. The AFB(1) levels in decontamination assays (16.67 ng mL(-1)) were measured by high performance liquid chromatography after incubation periods of 12, 24, 36 or 48 hat 37 degrees C. Degradation rates were compared to controls (mycotoxins in water) under the same incubation conditions. The ability to reduce the levels of zearalenone (ZEN) and ochratoxin A (OTA) was also tested, although no significant degradation was observed for any extract tested. A time-dependent decrease in AFB(1) levels was observed in the aqueous leave extracts of all plants. Rosemary extract had the highest (P < 0.05) percentage of AFB(1) reduction, with mean percentages of 49.0 +/- 5.6% to 60.3 +/- 2.9% at 24-48 h, followed by oregano after 48 h of incubation (38.3 +/- 4.6%) and araca at 36 h (30.7 +/- 3.8%). These results demonstrated that plant extracts are interesting alternatives for the control of aflatoxins in food substrates, although further studies are needed to assess the toxicity of the resulting compounds from degradation.
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