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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Pelkinių vingiorykščių (Filipendula ulmaria L.) augalinės žaliavos cheminės sudėties, antiradikalinio ir antimikrobinio poveikių įvertinimas / Chemical composition, antiradical and antimicrobial effect assessment of Meadowsweet (Filipendula ulmaria L.) herbal raw material

Žemaitytė, Rūtelė 30 June 2014 (has links)
Tikslas: įvertinti pelkinių vingiorykščių (Filipendula ulmaria L.) cheminę sudėtį ir antimikrobinį poveikį. Uždaviniai: nustatyti tinkamiausią ekstrakcijos metodą ir optimalias ekstrakcijos sąlygas; įvertinti flavonoidų, askorbo rūgšties ir raugų kiekybinės sudėties kitimo dinamiką augalo vegetacijos metu; įvertinti vaistinės augalinės žaliavos antimikrobinį poveikį prieš devynias mikroorganizmų kultūras; nustatyti vaistinės augalinės žaliavos antiradikalinio aktyvumo priklausomybę nuo augalo vegetacijos tarpsnio ir nustatyti, ar yra priklausomybė tarp flavonoidų, raugų ir askorbo rūgšties kiekio vaistinėje augalinėje žaliavoje ir antiradikalinio jos poveikio. Ekstrakcijai pasirinkta maceracija ultragarsinėje vonelėje, kaip ekstrahentą naudojant 70 proc. V/V etanolį. Suminiam flavonoidų kiekiui nustatyti taikytas spektrofotometrinis suminio flavonoidų kiekio įvertinimo metodas. Suminiam raugų kiekiui ir askorbo rūgšties kiekiui nustatyti taikyti farmakopėjiniai titrimetrijos metodai. Antimikrobinis poveikis įvertintas liejant skirtingas tirštųjų ekstraktų koncentracijas į agarą ir stebint mikrooroganizmų augimą, o antiradikalinis aktyvumas nustatytas taikant ABTS radikalo surišimo metodą. Didžiausias suminis flavonoidų kiekis aptiktas augalo masinio žydėjimo metu. Pirmojoje fenologinio vystymosi pusėje askorbo rūgšties kiekis buvo didesnis už vidutinį per visą vaistinio augalo vegetacijos laikotarpį (>0,025 proc.). Suminio raugų kiekio maksimumas pasiektas prieš pelkinių... [toliau žr. visą tekstą] / Objective: To assess chemical composition and biological effects of meadosweet (Filipendula ulmaria L.) Objectives: To determine the most suitable extraction method and the optimum extraction conditions; evaluation of quantitative composition dynamics of flavonoids, tannins and ascorbic acid during the growing season; antimicrobial effects evaluation of herbal ingredients against nine microbial cultures; evaluate dependence antiradical activity on the growing stage of the plant and to determine whether there is a relationship between quantity of flavonoids, tannins and ascorbic acid in the herbal raw material and its antiradical effect. The maceration by ultrasonic bath using 70 %. V / V ethanol was selected for extraction . For total flavonoids determination the spectrophotometric method was applied for total flavonoid content. For total tannin content and content of ascorbic the pharmacopoeial titration methods were applied. The antimicrobial effects were evaluated by infusing different concentrations of extractives to agar and observing microorganisms growth. The antiradical activity determined using the ABTS radical scavaning method. The highest total flavonoid content was found in massive flowering period. In the first half of the phenological development ascorbic acid content was higher than the average of the entire period of growing (> 0.025 %.). The peak of total tannin content was reached before massive flowering stage of meadowsweet (16.80 %). The ethanol... [to full text]
2

Mounted on a Pedestal: Bertha Honoré Palmer

Black, Hope L 08 November 2007 (has links)
The thesis Mounted on a Pedestal, chronicles the life of Bertha Honoré Palmer. The focus of her story are the years after 1910, when she traveled to Sarasota, Florida and heralded the flight to the southernmost state, leading the pack in the purchase and development of land in the Sarasota/ Tampa Bay area. The totality of her years prior to that time serve as a prelude to her accomplishments and the vicissitudes of her life in the sleepy little fishing village she found. Born in Louisville, Kentucky, in 1849, she was provided with a privileged, comfortable childhood and a sheltered academic education at the most prestigious schools for young ladies of the day. She excelled academically and won high praise for her exemplary demeanor. She was beautiful, intelligent, musically gifted, a competent linguist and writer, an astute businesswoman, a paragon of graciousness, and politically savvy. She married business mogul, Potter Palmer, when she was twenty-one and he forty-four. Bertha Palmer was a pacesetter of haute couture; the society pages of the newspapers were filled with detailed descriptions of her gowns, her jewels and her lavish parties. Her Chicago homes were architectural masterpieces and she furnished them with treasures from renowned artisans. In 1900, she was appointed by President William McKinley as the only woman on the national commission to represent the United States at the Paris Exposition. Mrs. Palmer's most prominent position was as president of the Board of Lady Managers at the Chicago World's Fair of 1893. She had close personal relations with the elite of American Society and European royalty. Following the death of her husband Potter, in 1902, Mrs. Palmer combined her life of splendor, advocacy, and mobility while pursuing every opportunity to increase the value of her holdings, principally with real estate investments. She had been bequeathed an estate worth eight million dollars. Before her death, she would more than double her net worth. She would invest in thousands of acres of land, build more homes and amass a fortune in possessions.

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