Relevant bibliographies by topics / Phosphates. Algae. Botanical chemistry

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Academic literature on the topic 'Phosphates. Algae. Botanical chemistry'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "Phosphates. Algae. Botanical chemistry"

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SKOROBOGATOVA, O. N., E. R. YUMAGULOVA, T. V. STORCHAK, and N. A. IVANOVA. "PHYTOPLANKTON OF SURFACE WATERS UNDER OIL POLLUTION (SAMOTLOR FIELD, WESTERN SIBERIA)." Periódico Tchê Química 16, no. 32 (August 20, 2019): 306–20. http://dx.doi.org/10.52571/ptq.v16.n32.2019.324_periodico32_pgs_306_320.pdf.

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The study of freshwater phytoplankton of the Samotlor field is associated with intense oil production and fragmentary reports on the state of wetland communities in the north of Western Siberia. The obtained data expands and complements the information about algae in extreme conditions. The goal of this research is to study the structure of the phytoplankton of high-latitude water bodies under oil pollution. The method of chemical-analytical studies in surface waters revealed excess standards in 2-62 times. By the amount of ammonium nitrogen, the studied water bodies are classified as polluted and very polluted. The amount of sulfates, nitrates, and phosphates in all water samples is lower than the standard MPCfw. During the microscopic examination, 88 algae from 48 genera, 29 families, 10 classes and 7 divisions were found. The basis of the floristic composition consists of Bacillariophyta, Euglenophyta and Chlorophyta. One dominant species (Kolbe-Visloukh method) and seven subdominants were identified. The most successful algae in plankton make up 4.5%. The analytical review showed the predominance of planktonic algae, which are indifferent to salinity and pH, cosmopolitan and ?-mesosaprobic in terms of saprobity. According to the data obtained, a significant deviation of parameters in the chemical composition of water, as well as in the structure dominants, and abundance of phytoplankton from the regional norm, was identified. Phytoplankton under oil pollution is poor in composition, and a significant number of large taxa with a small number of species emphasizes the complexity of the fluorogenic processes in the waters of the Samotlor field. The materials can be applied in a comprehensive study of water bodies, their typological characteristics, in the organization of environmental monitoring and the development of measures to protect aquatic ecosystems from pollution and eutrophication.
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Kučera, J., and L. Soukal. "Neutron activation analysis of new botanical reference materials — Part II: evaluation of Czechoslovak green algae, lucerne, wheat and rye bread flour." Fresenius' Journal of Analytical Chemistry 345, no. 2-4 (February 1993): 193–97. http://dx.doi.org/10.1007/bf00322587.

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Kalaiselvi, B., G. Dayana Jeyaleela Jeyaleela, K. Prathiba, R. Ramyasri, S. Shiyamli, and S. Vimala. "Growth Evaluation of Marine Microalgae Chlorella sp. BDU G91771 in Calcium Rich Ossein Effluent–A Bioremediation Perspective." Asian Journal of Chemistry 31, no. 10 (August 30, 2019): 2361–66. http://dx.doi.org/10.14233/ajchem.2019.22058.

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The aim of the present work is to study the growth and effluent parameters of the two ossein effluents. Growth parameters studied in this article are protein, chlorophyll, carbohydrate, moisture and the effluent parameters are alkalinity, nitrates, nitrites, ammonia, phosphates, sulphates, sulphites, calcium and magnesium. Calcium-rich effluent ossein was collected at three different clarifications stages from pioneer Jellice Industries Pvt, Ltd,, Cuddalore, which is gelatin manufacturing industry. The algae selected for the study was chlorella vulgaris BDU G91771 which was obtained from the culture collection of National Facility for Marine Cyanobacteria (NFMC), Bharathidasan University, Tiruchirapalli, India. The culture was maintained in F/2 medium under the continuous white light at an intensity of 20 μmol photon m-2 s-1 at 25 ± 2 ºC in a controlled culture room. The chosen organisms were grown in effluent diluted with seawater (1:1, 2:2 and 3:1) amended with fertilizer grade nutrient enrichment and phosphorus sources. The untreated effluent parameters were analyzed. Chlorella vulgaris was inoculated in F/2 medium and allowed to grow in ossein effluent for 7 days. The growth of the organism was measured by calculating its culture density, dry weight, carbohydrate, protein and chlorophyll. The growth parameters of microalgae revealed that the higher content of nitrate and ammonia in HTDS effluent served as the nitrogen source and supported microbial growth.
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4

Ríos-Reyes, Carlos Alberto, German Alfonso Reyes-Mendoza, José Antonio Henao-Martínez, Craig Williams, and Alan Dyer. "First Report on the Geologic Occurrence of Natural Na–A Zeolite and Associated Minerals in Cretaceous Mudstones of the Paja Formation of Vélez (Santander), Colombia." Crystals 11, no. 2 (February 22, 2021): 218. http://dx.doi.org/10.3390/cryst11020218.

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This study reports for the first time the geologic occurrence of natural zeolite A and associated minerals in mudstones from the Cretaceous Paja Formation in the urban area of the municipality of Vélez (Santander), Colombia. These rocks are mainly composed of quartz, muscovite, pyrophyllite, kaolinite and chlorite group minerals, framboidal and cubic pyrite, as well as marcasite, with minor feldspar, sulphates, and phosphates. Total organic carbon (TOC), total sulfur (TS), and millimeter fragments of algae are high, whereas few centimeters and not biodiverse small ammonite fossils, and other allochemical components are subordinated. Na–A zeolite and associated mineral phases as sodalite occur just beside the interparticle micropores (honeycomb from framboidal, cube molds, and amorphous cavities). It is facilitated by petrophysical properties alterations, due to processes of high diagenesis, temperatures up to 80–100 °C, with weathering contributions, which increase the porosity and permeability, as well as the transmissivity (fluid flow), allowing the geochemistry remobilization and/or recrystallization of pre-existing silica, muscovite, kaolinite minerals group, salts, carbonates, oxides and peroxides. X-ray diffraction analyses reveal the mineral composition of the mudstones and scanning electron micrographs show the typical cubic morphology of Na–A zeolite of approximately 0.45 mμ in particle size. Our data show that the sequence of the transformation of phases is: Poorly crystalline aluminosilicate → sodalite → Na–A zeolite. A literature review shows that this is an unusual example of the occurrence of natural zeolites in sedimentary marine rocks recognized around the world.
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5

Cuena-Lombraña, Alba, Mauro Fois, Annalena Cogoni, and Gianluigi Bacchetta. "Where we Come from and where to Go: Six Decades of Botanical Studies in the Mediterranean Wetlands, with Sardinia (Italy) as a Case Study." Wetlands 41, no. 6 (June 21, 2021). http://dx.doi.org/10.1007/s13157-021-01464-z.

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AbstractPlants are key elements of wetlands due to their evolutionary strategies for coping with life in a water-saturated environment, providing the basis for supporting nearly all wetland biota and habitat structure for other taxonomic groups. Sardinia, the second largest island of the Mediterranean Basin, hosts a great variety of wetlands, of which 16 are included in eight Ramsar sites. The 119 hydro- and hygrophilous vascular plant taxa from Sardinia represent the 42.6% and 37.9% of the number estimated for Italy and Europe, respectively. Moreover, around 30% of Sardinia’s bryological flora, which is made up of 498 taxa, is present in temporary ponds. An overview at regional scale considering algae is not available, to our knowledge, even though several specific studies have contributed to their knowledge. In order to find the most investigated research themes and wetland types, identify knowledge gaps and suggest recommendations for further research, we present a first attempt to outline the work that has been hitherto done on plants in lentic habitats in Sardinia. Three plant groups (algae, bryophytes and vascular plants), and five research themes (conservation, ecology, inventory, palaeobotany and taxonomy) were considered. After a literature review, we retained 202 papers published from 1960 to 2019. We found that studies on vascular plants, as plant group, were disproportionately more numerous, and inventories and ecology were the most investigated research themes. Although efforts have recently been made to fill these long-lasting gaps, there is a need for updating the existing information through innovative methods and integrative approaches.
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Books on the topic "Phosphates. Algae. Botanical chemistry"

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Sirenko, L. A. Biologicheski aktivnye veshchestva vodorosleĭ i kachestvo vody. Kiev: Nauk. dumka, 1988.

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2

J, Rogers L., and Gallon J. R, eds. Biochemistry of the algae and cyanobacteria. Oxford [England]: Clarendon Press, 1988.

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3

(Editor), L. J. Rogers, and John R. Gallon (Editor), eds. Biochemistry of the Algae and Cyanobacteria (Proceedings of the Phytochemical Society of Europe). Oxford University Press, USA, 1989.

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Book chapters on the topic "Phosphates. Algae. Botanical chemistry"

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Emsley, John. "Home, sweet home: An exhibition of detergents, dangers, delights and delusions." In Molecules at an Exhibition. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780198502661.003.0008.

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Few people today lead home-centred lives, and perhaps that’s how it should be. For earlier generations the home was all important: it was a place of comfort after a hard day’s work, a place to be proud of, a place of love and security for young children—and possibly a place of drudgery, boredom, quarrels and abuse. But whatever a home was, it was a place which chemistry was to transform, so that today it is cleaner, healthier, safer to live in, and with some remarkable labour-saving gadgets and entertainment facilities. It is cleaner because of detergents, healthier because of disinfectants and safer because the chemicals we use may be protected by other chemicals, as we shall see. Throughout the 19605, 708 and 8os the use of detergents was portrayed by some as almost wanton pollution of rivers and lakes. The chemicals that lift grease and dirt from dishes, clothes and even our own bodies were accused of causing ‘eutrophication’: the imbalance in rivers, lakes or inland seas that produces an excess of slimy algae or weeds. The main culprit was said to be phosphate in detergents, but even the surfactants they relied on for their cleaning ability were under a cloud, because these were produced from oil. Such was the odium under which detergents laboured that companies strove to produce ‘green’ alternatives that were phosphate-free. Unfortunately many consumers did not like them, but their rejection in the end hardly mattered because it turned out that phosphates were not so environmentally damaging after all. Detergents are made up of many components, but two are worth a closer look: surfactants, which dissolve grease, and phosphates, which soften the water. It is not difficult to find something good to say about them both of them. During the Gulf War of 1991, millions of barrels of crude oil were deliberately released by the Iraqi invaders into the waters of the Persian Gulf. As usually happens, it was the local birds who bore the brunt of this ecological vandalism.
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