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  • Open Access


    Morphometric and Biochemical Changes in Agave americana L. Plantlets Induced By Ethyl Methanesulfonate

    S. J. Reyes-Zambrano1,†, M. L. Ramírez-Merchant1,†, C. Arias-Castro2, M. A. Rodríguez-Mendiola2, C. A. Lecona-Guzmán1, V. M. Ruíz-Valdiviezo1, D. González-Mendoza3, F. A. Gutiérrez-Miceli1,*

    Phyton-International Journal of Experimental Botany, Vol.88, No.3, pp. 277-284, 2019, DOI:10.32604/phyton.2019.06504

    Abstract A. americana L. is a crop with very little genetic variability. In order to evaluate the effect of ethyl methanesulfonate (EMS) to induce variability in in vitro plantlets of A. americana, different explants (meristems, leaves and roots) were evaluated for the production of callus. MS medium supplemented with ANA (2.68 μM) and BAP (2.68 μM) was used. Callus obtained from apical meristem were treated with 15 mM EMS for two hours after which shoot formation was induced using 2,4-D (0.11 μM) and BAP (44 μM). The EMS induced variations in the morphometric and morphological parameters of the plantlets obtained, with… More >

  • Open Access


    Influence of Blueberry and Jaboticaba Agroindustrial Residue Particle Size on Color Change of Corn Starch Based Films Submitted to Different pH Values Solutions

    Cláudia Leites Luchese*, Julia Menegotto Frick Pavoni, Jordana Corralo Spada, Isabel Cristina Tessaro

    Journal of Renewable Materials, Vol.7, No.3, pp. 235-243, 2019, DOI:10.32604/jrm.2019.00033

    Abstract Corn starch, glycerol and agroindustrial residues were used to produce films by casting. By-products from juice processing, blueberry and jaboticaba in powder with different particle sizes were added in the filmogenic matrix to evaluate its potential as a colorimetric indicator. Blueberry and jaboticaba peels are commonly discarded although contain high amount of important compounds as anthocyanins. These compounds have the ability to color change after immersion in different pH values, demonstrating its potential for the intelligent packaging development. Analyses were performed in a colorimeter after films immersion in different buffer solutions. Visual color changes were perceived; reddish and bluish color… More >

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