J. C. R. Ribas, Anderson Lazzari, Lorena Beatriz Fagundes Gonzalez, Clandio Medeiros da Silva, L. Adamuchio, F. L. Cuquel, Rodrigo Sakurada, P. M. Pintro
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引用次数: 0
摘要
摘要本研究对巴西帕拉纳西北部橄榄品种Arbosana、Arbequina、Frantoio、Manzanilla和Koroneiki的色相组成、生物活性成分、抗氧化活性和叶片颜色进行了研究。试验收集各品种的叶片,采用完全随机设计。橄榄叶片干物质主要由碳水化合物(56.15 ~ 59.42 g 100 g-1 DM)和纤维(17.37 ~ 19.73 g 100 g-1 DM)组成。总多酚含量在13.27 ~ 22.81 mg QE g-1之间,其中以Manzanilla品种最为突出;总黄酮含量在6.50 ~ 7.65 mg QE g-1之间。在DPPH和ABTS试验中,Manzanilla的抗氧化活性最高,分别为93.56%和78.15%。与其他品种相比,Manzanilla和Koroneiki的叶片绿色强度更高,总叶绿素含量分别为0.958和0.833 mg 100 mL 1。在ABTS试验中,总多酚含量与抗氧化活性、叶绿素含量与抗氧化活性均存在相关性。橄榄叶的特性使其能够作为添加剂或成分用于开发具有令人满意的抗氧化活性的食品。
Bioactive compounds and antioxidant activity of leaves from olive trees grown in Paraná, Brazil
Abstract The objective of this work was to evaluate the bromatological composition, bioactive compounds, antioxidant activities, and color of the leaves of olive cultivars Arbosana, Arbequina, Frantoio, Manzanilla, and Koroneiki in northwestern Paraná, Brazil. Leaves of each cultivar were collected for the experiment, which was carried out in a completely randomized design. The dry matter (DM) of olive leaves contains mostly carbohydrates (56.15 to 59.42 g 100 g-1 DM) and fibers (17.37 to 19.73 g 100 g-1 DM) in its bromatological composition. The total polyphenol content ranges from 13.27 to 22.81 mg GAE g-1, with cultivar Manzanilla standing out, and the flavonoid content from 6.50 to 7.65 mg QE g-1. Manzanilla shows the highest antioxidant activity of 93.56 and 78.15% in the DPPH and ABTS assays, respectively. When compared with the other cultivars, Manzanilla and Koroneiki have leaves with a higher green intensity and total chlorophyll content of 0.958 and 0.833 mg 100 mL 1, respectively. In the ABTS assay, there is a correlation both between total polyphenol content and antioxidant activity and between chlorophyll content and antioxidant activity. Olive leaves have characteristics that allow their application as an additive or ingredient for the development of food products with satisfactory antioxidant activity.
期刊介绍:
Pesquisa Agropecuária Brasileira – PAB – is issued monthly by Empresa Brasileira de Pesquisa Agropecuária – EMBRAPA, affiliated to Ministry of Agriculture, Livestock and Food Supply. PAB publishes original scientific-technological articles on Plant Physiology, Plant Pathology, Crop Science, Genetics, Soil Science, Food Technology and Animal Science.
Its abbreviated title is Pesq. agropec. bras., and it should be used in bibliographies, footnotes, references and bibliographic strips.