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Bioactive Properties

The Experts below are selected from a list of 6627 Experts worldwide ranked by ideXlab platform

Isabel C.f.r. Ferreira – 1st expert on this subject based on the ideXlab platform

  • Chemical composition and Bioactive Properties of byproducts from two different kiwi varieties.
    Food Research International, 2019
    Co-Authors: Murilo Dias, Carla Pereira, Ricardo C. Calhelha, Lillian Barros, Cristina Caleja, Marina Kostić, Marina Soković, Débora Tavares, Ilton José Baraldi, Isabel C.f.r. Ferreira

    Abstract:

    Abstract Kiwis are an example of fruits with excellent Bioactive Properties worldwide appreciated and consumed generating tons of waste. Thus, the objective of this work was to compare two varieties of kiwi: Actinidia deliciosa cv. “Hayward” (green) and Actinidia spp. (red) regarding the nutritional value of their pulps, chemical composition and bioactivities of each pulp and peel. The results revealed that pulps have a high water content and low amount of other macronutrients. Both parts of red kiwi presented the highest tocopherols content and red kiwi pulp presented the highest content in ascorbic acid. In general, the peels exhibited the highest antioxidant activity and green kiwi peels showed cytotoxicity and anti-inflammatory activity, which could be related to its higher content in phenolic compounds, especially B-type (epi)catechin dimer. Therefore, kiwi components currently underutilized may be indicated as a source of natural functionalizing ingredients with several benefits for human health.

  • Jabuticaba residues (Myrciaria jaboticaba (Vell.) Berg) are rich sources of valuable compounds with Bioactive Properties.
    Food Chemistry, 2019
    Co-Authors: Bianca R. Albuquerque, Carla Pereira, Ricardo C. Calhelha, Maria José Alves, Rui M.v. Abreu, Lillian Barros, M. Beatriz P.p. Oliveira, Isabel C.f.r. Ferreira

    Abstract:

    Jabuticaba (Myrciaria jaboticaba (Vell.) Berg) is a Brazilian berry, very appreciated for in natura consumption. However, its epicarp is not normally consumed due to its stiffness and astringent taste, and in manufacture of products from jabuticaba fruit, it is responsible for the generation of large amounts of residues. The exploration of by-products is becoming important for the obtainment of valuable Bioactive compounds for food and pharmaceutical industries. In this context, jabuticaba epicarp was studied regarding its chemical composition, namely in terms of phenolic compounds, tocopherols, and organic acids, and its Bioactive Properties, such as antioxidant, anti-proliferate, anti-inflammatory, and antimicrobial activities. A total of sixteen phenolic compounds, four tocopherols and six organic acids were identified in jabuticaba epicarp. Regarding Bioactive Properties, it showed high antioxidant activity, also presenting moderate anti-inflammatory, anti-proliferative, and antimicrobial activities. The extract did not present hepatotoxicity, confirming the possibility of its applications without toxicity issues.

  • Challenges of traditional herbal teas: plant infusions and their mixtures with Bioactive Properties
    Food & Function, 2019
    Co-Authors: Cristina Caleja, Carla Pereira, Ricardo C. Calhelha, Lillian Barros, Ana Maria Carvalho, Marina Soković, Tiane C. Finimundy, Marija Ivanov, Eduardo A. S. Rosa, Isabel C.f.r. Ferreira

    Abstract:

    In order to characterize and study the bioactivities of individual plant species and to determine how these characteristics are modified when preparing blends, five different plant species were selected: Erica australis L., Genista tridentata L., Melissa officinalis L., Mentha spicata L., and Prunella vulgaris L. Infusions prepared from each plant species and from three selected mixtures were analyzed in terms of nutritional values, phenolic compositions, and Bioactive Properties (antioxidant, antimicrobial, cytotoxic, and anti-inflammatory activities). The major compound detected in M. officinalis, M. spicata, and P. vulgaris infusions was rosmarinic acid, whilst in E. australis and G. tridentata flavonoid derivatives such as quercetin and genistein were identified. P. vulgaris and M. officinalis presented the best results in TBARS and OxHLIA assays, respectively. M. spicata and all mixtures presented anti-inflammatory activity. M. spicata showed the best cytotoxic Properties and antimicrobial activity, and none of the infusions showed hepatotoxicity for non-tumour cells.

A. Navarro-ocaña – 2nd expert on this subject based on the ideXlab platform

  • Valuable medicinal plants and resins: Commercial phytochemicals with Bioactive Properties
    Industrial Crops and Products, 2010
    Co-Authors: Liliana Hernández-vázquez, Susana Mangas, Javier Palazon, A. Navarro-ocaña

    Abstract:

    Abstract A simple, fast and efficient method was developed for the isolation of phytochemicals with Bioactive Properties from valuable resins and medicinal plants. The method involves rapid qualitative detection of triterpenes by thin-layer chromatography (TLC), efficient extraction with n-hexane, quantitative analysis by HPLC and preparative separation (preparative TLC and crystallization) to obtain high-purity α-amyrin (98.5%), 3-epi-lupeol (98.0%) and β-amyrin (82.0%). The presence of α- and β-amyrin, or a mixture of both, was detected by TLC on silica gel in all the sources investigated, while 3-epi-lupeol was only found in the Mexican Copal resins. The results demonstrated that HPLC is a selective method for the analysis of α- and β-amyrin and 3-epi-lupeol, and that the best source of α-amyrin was Mexican Copal Tepoztlan, that of β-amyrin was Nance wastes and that of 3-epi-lupeol was Mexican Copal Sonora.

  • Valuable medicinal plants and resins: Commercial phytochemicals with Bioactive Properties
    Industrial Crops and Products, 2010
    Co-Authors: Liliana Hernández-vázquez, Susana Mangas, Javier Palazon, A. Navarro-ocaña

    Abstract:

    A simple, fast and efficient method was developed for the isolation of phytochemicals with Bioactive Properties from valuable resins and medicinal plants. The method involves rapid qualitative detection of triterpenes by thin-layer chromatography (TLC), efficient extraction with n-hexane, quantitative analysis by HPLC and preparative separation (preparative TLC and crystallization) to obtain high-purity ??-amyrin (98.5%), 3-epi-lupeol (98.0%) and ??-amyrin (82.0%). The presence of ??- and ??-amyrin, or a mixture of both, was detected by TLC on silica gel in all the sources investigated, while 3-epi-lupeol was only found in the Mexican Copal resins. The results demonstrated that HPLC is a selective method for the analysis of ??- and ??-amyrin and 3-epi-lupeol, and that the best source of ??-amyrin was Mexican Copal Tepoztlan, that of ??-amyrin was Nance wastes and that of 3-epi-lupeol was Mexican Copal Sonora. ?? 2010 Elsevier B.V. All rights reserved.

Liliana Hernández-vázquez – 3rd expert on this subject based on the ideXlab platform

  • Valuable medicinal plants and resins: Commercial phytochemicals with Bioactive Properties
    Industrial Crops and Products, 2010
    Co-Authors: Liliana Hernández-vázquez, Susana Mangas, Javier Palazon, A. Navarro-ocaña

    Abstract:

    Abstract A simple, fast and efficient method was developed for the isolation of phytochemicals with Bioactive Properties from valuable resins and medicinal plants. The method involves rapid qualitative detection of triterpenes by thin-layer chromatography (TLC), efficient extraction with n-hexane, quantitative analysis by HPLC and preparative separation (preparative TLC and crystallization) to obtain high-purity α-amyrin (98.5%), 3-epi-lupeol (98.0%) and β-amyrin (82.0%). The presence of α- and β-amyrin, or a mixture of both, was detected by TLC on silica gel in all the sources investigated, while 3-epi-lupeol was only found in the Mexican Copal resins. The results demonstrated that HPLC is a selective method for the analysis of α- and β-amyrin and 3-epi-lupeol, and that the best source of α-amyrin was Mexican Copal Tepoztlan, that of β-amyrin was Nance wastes and that of 3-epi-lupeol was Mexican Copal Sonora.

  • Valuable medicinal plants and resins: Commercial phytochemicals with Bioactive Properties
    Industrial Crops and Products, 2010
    Co-Authors: Liliana Hernández-vázquez, Susana Mangas, Javier Palazon, A. Navarro-ocaña

    Abstract:

    A simple, fast and efficient method was developed for the isolation of phytochemicals with Bioactive Properties from valuable resins and medicinal plants. The method involves rapid qualitative detection of triterpenes by thin-layer chromatography (TLC), efficient extraction with n-hexane, quantitative analysis by HPLC and preparative separation (preparative TLC and crystallization) to obtain high-purity ??-amyrin (98.5%), 3-epi-lupeol (98.0%) and ??-amyrin (82.0%). The presence of ??- and ??-amyrin, or a mixture of both, was detected by TLC on silica gel in all the sources investigated, while 3-epi-lupeol was only found in the Mexican Copal resins. The results demonstrated that HPLC is a selective method for the analysis of ??- and ??-amyrin and 3-epi-lupeol, and that the best source of ??-amyrin was Mexican Copal Tepoztlan, that of ??-amyrin was Nance wastes and that of 3-epi-lupeol was Mexican Copal Sonora. ?? 2010 Elsevier B.V. All rights reserved.