The betacyanin content of the globe amaranth extract is unstable on storage due to temperature, pH, light intensity and oxidizing factors. objectives this study were (1) know effect stability during storage, (2) determine treatment that can maintain best storage. This used a simple completely randomized design with consisting 5 levels, namely 200 lumens, 350 540 lumens. 720 lumens 1055 Each was...

In the regions of Campinas and Sumaré, São Paulo, Brazil, hidroponically grown crops of Lettuce (Lactuca sativa) cv. Verônica, which showed virus-like symptoms were examined by electron microscope, biological, serological and molecular tests. Pleomorphic, enveloped particles (80-100 nm in diameter) were always detected in these samples. Experimentally inoculated host plants, including lettuce, ...

Globe amaranth is a flower that can be used as natural dye. The has high betacyanin. This study aimed to determine the effect of initial pH and temperature in stability extent globe dye extract, with determined maximum extract during retention. experiment complete randomized design two factors. first factor was consist 4, 5, 6. second storage 4±1ºC 28±2ºC. data were analyzed through analysis va...

The antibiotic-producing bacterium, Pseudomonas fluorescens, is assumed to be important in protecting plants from soilborne diseases. S. fluorescens S272, a hyper-producing strain of pyoluteorin (PT) and 2,4-diacetylphloroglucinol (DG), had previously been isolated from soil. The present paper reported that the growth of water-cultivated Kaiware radish was promoted to 120-140% of its normal lev...

The archives of Flora Medicinal, an ancient pharmaceutical laboratory that supported ethnomedical research in Brazil for more than 30 years, were searched for plants with antimalarial use. Forty plant species indicated to treat malaria were described by Dr. J. Monteiro da Silva (Flora Medicinal leader) and his co-workers. Eight species, Bathysa cuspidata, Cosmos sulphureus, Cecropia hololeuca, ...

Abstract Nectariferous and polliniferous resources are key to the survival of social bees, so identifying origin sources allows implementation management actions aimed at a greater supply nutrients for colonies. Besides, defining floral honeys contributes their characterization commercialization. The objective our work was identify plants that provide nectar bees Apis mellifera Tetragonisca fie...

Extraction and study of the optical properties natural dyes from several plant parts such as leaves, flowers, tubers, fruits have been carried out using a simple maceration method UV-Vis absorption characterization. The samples were divided into groups in this study, namely flower group (Tagetes sp., Paeonia Centaure Chrysanthemum Carthamus tinctorius, Gomphrena globosa, Myosotis sylvatica, Lav...