English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Aflatoxin B 1  (AFB 1 ) is a highly toxic and carcinogenic metabolite produced by  Aspergillus  species on food and agricultural commodities. Inhibitory effects of essential oils of  Ageratum conyzoides  (mentrasto) and  Origanum vulgare  (oregano) on the mycelial growth and aflatoxin B 1  production by  Aspergillus flavus  have been studied previously in culture medium. The aim of this study was to evaluate aflatoxin B 1  production by  Aspergillus flavus  in real food systems (corn and soybean) treated with  Ageratum conyzoides  (mentrasto) and  Origanum vulgare  (oregano) essential oils. Samples with 60 g of the grains were treated with different volumes of essential oils, 200, 100, 50, and 10 μL for oregano and 50, 30, 15, and 10 μL for mentrasto. Fungal growth was evaluated by disk diffusion method. Aflatoxin B 1  production was evaluated inoculating suspensions of  A. flavus  containing 1.3 × 10 5  spores/mL in 60 g of grains (corn and soybeans) after adjusting the water activity at 0.94. Aflatoxin was quantified by photodensitometry. Fungal growth and aflatoxin production were inhibited by essential oils, but the mentrasto oil was more effective in soybeans than that of oregano. On the other hand, in corn samples, the oregano essential oil was more effective than that of mentrasto. Chemical compositions of the essential oils were also investigated. The GC/MS oils analysis showed that the main component of mentrasto essential oil is precocene I and of the main component of oregano essential oil is 4-terpineol. The results indicate that both essential oils can become an alternative for the control of aflatoxins in corn and soybeans.

Potential of essential oils for protection of grains contaminated by aflatoxin produced by Aspergillus flavus