文章基本信息

标题：Extrao, caracterizao e avaliao microbiológica de óleos essenciais de rejeitos de frutas cítricas comerciais
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作者：Gabriela Borba Vilela Borges ; Ana Maria de Resende Machado ; Fátima de Cássia Oliveira Gomes 等
期刊名称：Research, Society and Development
电子版ISSN：2525-3409
出版年度：2021
卷号：10
期号：7
页码：1-15
DOI：10.33448/rsd-v10i7.16126
语种：English
出版社：Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
摘要：xWith the increase in the production of residues from food processing, several measures are being implemented generating benefits that go beyond environmental issues. This work proposed the reuse of surplus citrus fruit peels from commercial establishments, through the extraction of essential oils (OEs). Their antimicrobial efficacy, physical-chemical parameters, chemical constitution and the OE grouping patterns were evaluated based on statistical analyzes. The OEs were extracted from the shells by the hydrodistillation method. The refractive index, relative density and solubility in 90% ethanol were determined. The identification of the constituents was performed using GC-MS and for the groupings of the samples, PCA and HCA were used. For the antimicrobial activity, the disk diffusion technique was used, using two yeasts (Candida parapsilosis and Candida krusei) and two bacteria (Staphylococcus aureus and Escherichia coli). It was found that the OEs of orange cultivars have higher extraction yield and the physical-chemical analyzes were similar between orange and lemon cultivars. 61 components were identified in the OEs, with d-limonene being the majority. PCA and HCA revealed groupings that corroborate with the cultivars oranges, lemons and tangerines. All microorganisms were sensitive to the OEs of lemons and tangerine and E. coli was sensitive to all OEs. In turn, the bacterium S. aureus proved to be resistant to OEs from orange cultivars. It was found that the reuse of surplus citrus fruit peels is feasible, and OEs are effective against certain microorganisms.
关键词：Essencial oils;Citrus fruits;Reuse.