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Dissertations / Theses on the topic 'Bioactive components'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Guo, Chun Teng. "Molecular analyses of the bioactive components in snake venom." Thesis, University of Ulster, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.494354.

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Rashid, Shazia. "Identification of bioactive components from white-rot fungus, Funalian trogii." Thesis, University of Ulster, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.529515.

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3

Guerra, Elena <1984&gt. "Milk and dairy products: evaluation of bioactive components by analytical techniques." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6301/1/PhD_Thesis.pdf.

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Milk and dairy products are important source of bioactive compounds useful to satisfy the nutritional and physiological needs of any newborns of mammalian species and useful to guarantee adequate growth and development of infants as well as provide a complete nourishment of adults. Physico-chemical, nutritional and organoleptic properties of the main constituents and the “minor” components have a crucial role in the quality of milk and milk products. Although in the past decades dietary milk fat was often regarded as harmful for the human health, recent researches suggest that milk contains sp

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Guerra, Elena <1984&gt. "Milk and dairy products: evaluation of bioactive components by analytical techniques." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6301/.

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Milk and dairy products are important source of bioactive compounds useful to satisfy the nutritional and physiological needs of any newborns of mammalian species and useful to guarantee adequate growth and development of infants as well as provide a complete nourishment of adults. Physico-chemical, nutritional and organoleptic properties of the main constituents and the “minor” components have a crucial role in the quality of milk and milk products. Although in the past decades dietary milk fat was often regarded as harmful for the human health, recent researches suggest that milk contains sp

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5

Massaccesi, Luca <1985&gt. "Role of Bioactive Components in Inflammation and Oxidative Stress in Vascular Endothelium." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7500/1/LUCA_MASSACCESI_TESI_DOTTORATO_FINALE.pdf.

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An increasing number of scientific evidence supports the preventive value of dietary patterns that favor the consumption of plant food. Especially fruit, vegetables, grains and legumes; the correlation between the reduction of risk of chronic disease such as adherence to the Mediterranean diet is the most significant example. The central role of the endothelium in maintaining vascular homeostasis and the correlation between endothelial dysfunction and the development of cardiovascular diseases makes this tissue a primary target for dietary strategies aimed at cardiovascular diseases prevention

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Massaccesi, Luca <1985&gt. "Role of Bioactive Components in Inflammation and Oxidative Stress in Vascular Endothelium." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7500/.

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An increasing number of scientific evidence supports the preventive value of dietary patterns that favor the consumption of plant food. Especially fruit, vegetables, grains and legumes; the correlation between the reduction of risk of chronic disease such as adherence to the Mediterranean diet is the most significant example. The central role of the endothelium in maintaining vascular homeostasis and the correlation between endothelial dysfunction and the development of cardiovascular diseases makes this tissue a primary target for dietary strategies aimed at cardiovascular diseases prevention

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7

Okoh, Omobola Oluranti. "Chemical transformations and phytochemical studies of bioactive components from extracts of Rosmarinus officinalis L." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/354.

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Variations in the yield, chemical composition, antibacterial, and antioxidant properties of the essential oils of Rosmarinus officinalis L. cultivated in Alice, Eastern Cape of South Africa over a period of 12 months using the solvent-free microwave extraction and traditional hydrodistillation methods were evaluated. The GC-MS analyses of the essential oils revealed the presence of 33 compounds with 1,8-cineole, a-pinene, camphor, verbenone, bornyl acetate and camphene constituting about 80 percent of the oils throughout the period of investigation, with the solvent-free microwave extraction m

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8

Grau, Bové Maria Carme. "Regulation of enteroendocrine function by bioactive components through their interaction with bitter taste receptors." Doctoral thesis, Universitat Rovira i Virgili, 2021. http://hdl.handle.net/10803/672967.

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El sistema enteroendocrí es troba al tracte gastrointestinal i controla la gana i l’activitat pancreàtica endocrina, entre altres funcions. Els compostos bioactius que estimulen aquest sistema són candidats terapèutics per tractar patologies relacionades amb aquestes funcions. Prèviament s’ha identificat que un extracte de proantocianidines de llavors de raïm (GSPE) és antidiabètic per les seves capacitats de millora de la funció de les cèl·lules i la seva capacitat saciant, com a conseqüència en part de l’activació del sistema enteroendocrí. El nostre grup ha relacionat les secrecions en

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9

Tan, Hsueh-Li. "The Role of Tomato Bioactive Components and CMO2 Gene Interaction in Prostate Cancer Prevention." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1345493048.

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10

Kayitesi, Eugenie. "Micronisation of cowpeas : the effects on sensory quality, phenolic compounds and bioactive properties." Thesis, University of Pretoria, 2013. http://hdl.handle.net/2263/32972.

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Cowpeas (Vigna unguiculata L. Walp) are legumes recognised as a good source of proteins in developing countries. Cowpeas are mostly utilised as cooked whole seeds. This is often achieved only after boiling for up to 2 hours, resulting in high energy consumption and a long time for food preparation. Micronisation of pre-conditioned cowpeas (± 41 % moisture at 153 °C) reduces their cooking time. During micronisation, cowpea seeds are exposed to electromagnetic radiation with a wavelength range of 1.8 to 3.4μm. For biological materials, the penetration of infrared rays into the food materia

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11

Acosta, Romero Carolina. "Essential oil components encapsulated in mesoporous silica supports: a bioactive properties evaluation and toxicological approach." Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/90653.

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The present PhD thesis, entitled: "Essential oil components encapsulated in mesoporous silica supports: a bioactive properties evaluation and a toxicological approach" focuses on the study of protection and controlled release of natural bioactive agents, derived from essential oil components (EOCs), encapsulated in mesoporous silica particles (MSPs). In addition, this thesis evaluatesthe silica-based supports to reduceundesirable sensorial propertiesandfor ensuring a low-health risk. The first section of the thesis shows the effect of encapsulation of EOCs in mesoporous silica supports. This

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Shimizu, Yu. "Bioactive effects of strontium loading on micro/nano surface Ti6Al4V components fabricated by selective laser melting." Kyoto University, 2020. http://hdl.handle.net/2433/253206.

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13

Sadaghiani, Leili. "The effect of dentine conditioning agents on solubilisation of bioactive dentine matrix components and dentine regeneration." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/79592/.

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The dentine-pulp complex is a unique, dynamic organ capable of responding to mild and aggressive injurious stimuli. Deep caries or tooth fractures that extend close to the pulp can lead to inflammation and ultimate pulpal necrosis if not managed appropriately. Current therapeutic regimes for such scenarios include the use of vital pulp (capping) treatments, which attempt to stimulate the pulp’s auto-repair capacity which is still poorly understood and consequently not exploited to its full potential. Amongst the possible mechanisms involved in inducing a dentinogenic response in vital pulp the

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Danesi, Francesca <1977&gt. "Biological effects of bioactive components and extracts derived from edible plants commonly used in human nutrition." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1596/1/Danesi_PhD_thesis.pdf.

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The main aim of this PhD research project was the evaluation of the biological effects of bioactive compounds derived from edible plants, with particular attention on their possibility to counteract oxidative damage and inflammation. After a preliminary study of in vitro antioxidant activity, regarding the modification eventually occurring after home freezing and cooking of edible vegetables, cultured mammalian cells were used as experimental model systems. Soluble extract and essential oils derived from different cultivars of Brassicaceae and Lamiaceae were tested as possible tools for th

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Danesi, Francesca <1977&gt. "Biological effects of bioactive components and extracts derived from edible plants commonly used in human nutrition." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/1596/.

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The main aim of this PhD research project was the evaluation of the biological effects of bioactive compounds derived from edible plants, with particular attention on their possibility to counteract oxidative damage and inflammation. After a preliminary study of in vitro antioxidant activity, regarding the modification eventually occurring after home freezing and cooking of edible vegetables, cultured mammalian cells were used as experimental model systems. Soluble extract and essential oils derived from different cultivars of Brassicaceae and Lamiaceae were tested as possible tools for th

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Taccari, Annalisa <1985&gt. "Bioactive Components as Integral Part of Foods and Diet: Evaluation of Effectiveness and Mechanisms of Action." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amsdottorato.unibo.it/8146/1/Annalisa%20Taccari%20PhD%20Thesis.pdf.

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The overall objective of this PhD project was to evaluate the functional properties of different foods (fruits, vegetables and grains) and of their bioactive compounds, trying to highlight the differences existing among plant foods of similar type. Numerous scientific studies have shown that consumption of plant foods can positively affect health and contribute to the prevention of many chronic degenerative and inflammatory diseases. Since it is known that the nutritional value of a food depends not only on the concentration of nutrients and bioactive molecules, but also on their bioaccessib

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17

FERRINI, KRIZIA. "New insights into the mechanisms of bioactive food components: integrative nutrition and health promotion in clinical trials." Doctoral thesis, Università degli studi di Pavia, 2017. http://hdl.handle.net/11571/1203375.

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The research, describes the ultimate goal of the clinical nutrition scientist. The purpose of the research was to translate scientific findings into practical clinical application: it has been presented the data obtained during the Smart Trial Arancia Rossa (A randomized trial on the effect of a regular supplementation with an anthocyanin-rich drink on side effects of non-steroidal aromatase inhibitor treatment in post-menopausal patients with breast cancer), focusing on a number of bioactive compounds (anthocyanins) that have to varying degrees been associated with health benefits. Through th

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18

Somavat, Romel. "Applications and Effects of Ohmic Heating: Sterilization, Influence on Bacterial Spores, Enzymes, Bioactive Components and Quality Factors in Food." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1293568724.

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19

Bronkhorst, Petro Du Toit. "The antioxidant activity and cellular effects of the bioactive components of Flavonix® Cytoflamm Gel used in wound treatment." Diss., University of Pretoria, 2014. http://hdl.handle.net/2263/43294.

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Wound healing is one of the most complex processes in the human body consisting of several different phases namely inflammatory phase, proliferative phase, remodeling phase and contraction phase (Jurjus et al., 2007). Bioactive ingredients of Cytoflamm Gel (FCG), a complementary wound healing product are honey (H), oleuropein (OL), witch hazel (WH), xylitol (X), vitamin E (VE), aloe vera (AV) and farnesol (Fa). The aim of this study was to evaluate the antioxidant properties and cellular protective effects of FCG. This required the testing of each bioactive ingredient as well as related

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Buttiaux, Véronique. "Sensibilisation de l’adénocarcinome pancréatique canalaire à la chimiothérapie et à la radiothérapie par des molécules bioactives issues de l’alimentation." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0332/document.

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L’adénocarcinome pancréatique canalaire (PDAC) est un cancer de mauvais pronostic en partie en raison de la résistance aux traitements conventionnels de chimiothérapie ou de radiothérapie. Certaines substances bioactives issues de l’alimentation (BFCs), prooxydantes sont capables de potentialiser l’action cytotoxique des drogues conventionnelles dans le PDAC. Par ailleurs ces BFCs pourraient augmenter les cassures de l’ADN induites par les radiations ionisantes. Objectifs : évaluer l’action combinée de BFCs en association avec la chimiothérapie et la radiothérapie dans des modèles de PDAC et i

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Sattler, José Augusto Gasparotto. "Caracterização do potencial bioativo do pólen apícola de Eucalyptus sp. in vitro e sua influência sobre parâmetros de estresse oxidativo e de inflamação in vivo." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/9/9131/tde-04122018-115805/.

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O presente trabalho teve por objetivo caracterizar os compostos bioativos e o impacto de fatores climáticos no pólen apícola (PA) de Eucalyptus sp., o seu potencial antioxidante in vitro e a sua influência em parâmetros do estresse oxidativo e da inflamação in vivo. A caracterização quimica das amostras foi realizada pela quantificação de fenólicos e flavonóides totais e a avaliação da atividade antioxidante dos extratos por três metodologias (DPPH, ORAC e FRAP). Foram realizadas análises de perfil de ácidos graxos e fitoesteróis (CG). Os resultados de fenólicos e flavonóides totais mostraram

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Pascual, Cristina de Simone Carlos Iglesias. "Efeitos da parboilização do arroz (Oryza sativa L.) integral sobre os compostos bioativos e a disponibilidade do amido." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/9/9131/tde-28012011-112055/.

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O arroz (Oryza sativa L.) é consumido principalmente na forma polida, porém uma alternativa nutricionalmente melhor seria o arroz integral, que contém ao redor de 10% de farelo, rico em micronutrientes e compostos bioativos. Dentre esses destacam-se a vitamina E e γ-orizanol, aos quais se atribuem diversos efeitos benéficos à saúde. A literatura descreve vários estudos relacionados à presença desses compostos no arroz integral, porém pouco se sabe a respeito da sua estabilidade com o armazenamento, a parboilização e a cocção caseira. Pelo fato do arroz integral apresentar curta vida de pr

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Vissotto, Lizziane Cynara 1980. "Capacidade de desativação de espécies reativas de oxigênio por polpas de frutas congeladas." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256340.

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Orientador: Adriana Zerlotti Mercadante<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-21T04:59:41Z (GMT). No. of bitstreams: 1 Vissotto_LizzianeCynara_M.pdf: 596102 bytes, checksum: 43b81dc54193555ee63c61c822403a68 (MD5) Previous issue date: 2012<br>Resumo: A diversidade de frutas frescas e/ou processadas comercializadas atualmente tem conquistado cada vez mais o mercado consumidor, com destaque para a produção de polpas de frutas congeladas, que além de permitirem o consumo de frutas durante o perío

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Bairinhas, Marisa Alexandra Vitorino. "Polpas de maçã estabilizadas pela adição de aditivos. Impacto da componente bioactiva." Master's thesis, ISA, 2010. http://hdl.handle.net/10400.5/3083.

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Mestrado em Engenharia Alimentar - Qualidade e Segurança Alimentar - Instituto Superior de Agronomia<br>Ever since prehistoric times the man has been diversifying their diet and constantly improving the techniques of food preservation. Nowadays advances are such that the consumer can have a variety of foods, with appealing sensory properties, a high nutritional value and contribute fully preserved to their health and well-being. The act of eating is no longer considered a mere caloric intake needed to maintain the metabolic activity of our body, therefore an alliance as arisen between the inta

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Kuzina, Anastasiya. "Valorização de subprodutos de cenoura. Promoção da componente bioactiva." Master's thesis, ISA/UL, 2014. http://hdl.handle.net/10400.5/8218.

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Mestrado em Engenharia Alimentar - Instituto Superior de Agronomia<br>The high volume of carrot byproducts from the fresh-cut industry (SPC) justifies the interest in its valorisation. The goal of the present investigation was to study the usability of abiotic stress (wound) in promotion of bioactive component of carrot byproducts and posterior recovery (water extraction) and valorisation (incorporation in bread). Carrot byproducts demonstrated a valuable source of antioxidant compounds with a total phenolic compound (CFT) of 46.4 mg EAC.100 g-1 and carotenoids (CCT) of 11.8 mg eq β-carotene.

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Chen, Chujian 1966. "Antitumor properties of kefir : possible bioactive component(s) and mechanism(s)." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=85139.

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Research on the putative health benefits has indicated that kefir, a traditional fermented milk, might have antimutagenic and antitumor properties. The major objective of the present thesis was to isolate and identify antitumor compounds in cow's milk kefir and investigate the possible mechanisms involved. High speed centrifugation (HSC), molecular weight cut-off filtration (MWCO), size exclusion high performance liquid chromatography (SEC-HPLC) and reverse phase-HPLC (RP-HPLC) were utilized for fractionation of kefir and a cell culture model was developed to screen for the antiprolifer

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Villar, Cisternas Macarena Isabel. "Composición nutricional y componentes bioactivos de cuatro variedades de paltas (Persea americana) comerciales chilenas : comparación de componentes bioactivos, cosechas 2011-20112." Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/137794.

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Memoria para optar al título de Ingeniera en Alimentos<br>El objetivo de esta tesis es estudiar, analizar y comparar cuatro variedades de paltas consumidas en Chile con el fin de obtener la composición nutricional y componentes bioactivos de ellas. Se realizó una comparación de dos años consecutivos de cosecha, 2011 y 2012. Se determinó además los parámetros de identificación general del aceite de las diferentes variedades estudiadas. Las variedades analizadas fueron: Hass, Esther, Fuerte y Negra de la Cruz; las cuales son unas de las variedades con mayor disposición de consumo en Chile. La

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Stucchi, M. "MULTICOMPONENT APPROACHES TO THE SYNTHESIS OF SMALL BIOACTIVE MOLECULES." Doctoral thesis, Università degli Studi di Milano, 2015. http://hdl.handle.net/2434/330951.

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In this PhD thesis, we exploited the potentialities of four different multicomponent reactions (MCRs), namely Ugi four-component reaction (U-4CR), N-split Ugi reaction (N-split U-4CR), van Leusen three-component reaction (vl-3CR) and Biginelli reaction (Bg-3CR), developing five different approaches to the synthesis of small bioactive molecules. In particular, we successfully applied the build/couple/pair strategy obtaining a small library of ketopiperazine-based minimalist peptidomimetics, by means of diastereoselective U-4CR/post-cyclization sequences, employing optically pure amino acid-de

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Pereira, Gerson Rodrigues Raggi. "Componentes químicos do extrato hidroalcoólico de Bunodossoma Caissarum /." São Vicente, 2017. http://hdl.handle.net/11449/148995.

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Orientador: Wagner Vilegas<br>Resumo: Organismos marinhos são importantes fontes de novos produtos naturais e compostos bioativos com funções variadas. Entre as principais fontes de novas moléculas esta o filo dos Cnidários, com uma importante contribuição no numero de compostos descritos nos últimos anos. Bunodossoma caissarum é uma espécie de anêmona endêmica do Brasil, cujo perfil químico foi analisado. Para essa análise foram realizados uma extração hidroalcoólica e o isolamento de determinadas moléculas com técnicas cromatográficas. Os compostos isolados foram aqueles que apresentaram abs

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Lo, Bosco Fabrizia. "Evaluation of antioxidant properties and assessment of genetic diversity of Capparis spinosa cultivated in Pantelleria Island." Doctoral thesis, Universitat Politècnica de València, 2017. http://hdl.handle.net/10251/79872.

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Capparis spinosa is a wild and cultivated bush, which grows mainly in the Mediterranean Basin. Unopened flower buds, called capers are used in the Mediterranean cuisine as flavoring for meat, vegetable and other foods. Several studies evaluated bioactive component and antioxidant activity of Capparis spinosa, increasing the market demand and the economic importance of capers. The aim of this work was to evaluate the contents of bioactive compounds in floral buds fermented in salt of C. spinosa collected from different areas of Pantelleria Island (Italy), testing the effect on healthy function

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張瑛玲. "Effects of bioactive components of." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/45631348561876561832.

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Andrae, Lia M. "Physical, perceptual, and bioactive components of chocolate /." 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3223537.

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Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006.<br>Source: Dissertation Abstracts International, Volume: 67-07, Section: B, page: 3520. Adviser: Nicki J. Engeseth. Includes bibliographical references (leaves 221-237) Available on microfilm from Pro Quest Information and Learning.

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WU, LI-QIN, and 吳麗琴. "Isolation of the bioactive components from dendrobium nobile." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/59827843232995853919.

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Mou, Jing-Woei, and 牟經偉. "Determination of the Bioactive Components in Ligustici Rhizoma." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/15840975956803139402.

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碩士<br>國立師範大學<br>化學學系<br>81<br>Ligustici Rhizoma is a widely used Chinese herbal drug which contains essential oils, organic acids, phenols, alkloids and carbohydrates as its main components. Pharmacological tests revealed that those essential oils and organic acids had the functions of inhibiting cramped, sedating, depress- ing the blood level and antifungaling. In this study we used nicotinic acid, tetramethylpyrazine, ferulic acid, butylphthalide, senkyunolide A , ligusti

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"Discovery and identification of bioactive components by molecular docking." 2013. http://library.cuhk.edu.hk/record=b6115803.

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隨著個人計算機運算能力的快速發展，虛擬藥物篩檢已被廣泛運用。目前運用於計算機輔助藥物虛擬篩選的化合物數據庫多為人工合成的數據庫，而用於天然產物藥物篩選的數據庫則較少報道。為了加速天然化合物的虛擬篩選，我們建立了包含約8000個天然產物的數據庫。他們中的大多數為傳統中藥。<br>為了驗證天然產物數據庫的可用性，其被用於篩選乙酰膽鹼酯酶抑製劑。該數據庫成功地確定了美國藥品監督管理局所批準的乙酰膽鹼酯酶抑製劑，如石杉鹼甲和他克林，表示該天然產物數據庫可以用於藥物虛擬對接篩選。<br>除了已知的乙酰膽鹼酯酶抑製劑，十二種植物化學物（大黃酸，大黃素，蘆薈大黃素，大黃酚，花椒毒素，珊瑚菜素，別異歐前胡素，歐前胡素，紫草素，乙酰紫草素，異戊紫草素和β，β-二甲基丙烯酰紫草素）被確定為新的乙酰膽鹼酯酶抑製劑。澱粉樣蛋白聚集可以導致神經細胞死亡；本研究中新發現的乙酰膽鹼酯酶抑製劑乙酰紫草素能夠阻止澱粉樣蛋白的聚集。除此之外，乙酰紫草素及其衍生物可以對抗過氧化氫誘導的神經細胞凋亡。其抗凋亡的活性作用是通過抑制活性氧的產生，以及保護線粒體膜電位的損失所實現的。亞鐵血紅素加氧酶在其神經細胞保護作用中起重要作用。<br>趨化因子受體4為跨膜G蛋白偶聯受體（GPCRs）。 CXCR4已被確定為一個新治療以及預防腫瘤轉移的新靶點。本研究利用分子對接篩選，從天然產物數據庫篩選選出CXCR4拮抗劑。通過分子對接和基

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Wu, Yan-Shan, and 吳晏姍. "The effects of bioactive food components on homocysteine metabolism." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/5u7apw.

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碩士<br>國立中興大學<br>食品暨應用生物科技學系所<br>100<br>Abstract The objective of this study was to investigate the regulatory effects of bioactive food components on critical enzyme activity involved in homocysteine metabolism in vivo. In this study, eighteen female C57BL/6JNarl mice at 6 wk of age were randomly divided into three groups: the control group, Group A, and B. The bioactive food components were supplied to special formulated diets during the sixteen treatment period. The results demonstrated that the dietary intake of compound A significantly increased plasma homocysteine concentration by the i

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chen, Ray-Tzu, and 陳瑞慈. "Purification and Characterization of Bioactive Components from Mondia whitei." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/79909592094222283901.

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碩士<br>國立成功大學<br>化學系碩博士班<br>97<br>So far, most bioactivity assay for Mondia Whitei were the aqueous and methanol extracts. In this study, CO2 super fluid critical (SFC) extraction has been employed and found that the extract contains spicy flavor. This extract was purified and identified for further bioassay. Three compounds, 2-Hydroxy-4-methoxybenzaldehyde, 4-Methoxybenzaldehyde, and 4-Hydro- xy-2-methoxybenzaldehyde, were identified. The antibacterial tests for compounds, 2-Hydroxy-4-methoxybenza- ldehyde and 4-Methoxybenzaldehyde, against mold and three types yeast, Aspergillus niger 16

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Huang, Yu-Hao, and 黃煜豪. "Bioactive Components Isolated from Heartwood of Cinnamomum osmophloeum Kanehira." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/54345287027194582869.

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碩士<br>國立中興大學<br>化學系所<br>96<br>Cinnamomum osmophloeum Kaneh. (Lauraceae) is an arbor indigenous to Taiwan. As we investigated the chemical constituents of heartwood of C. osmophloeum, a totally 10 compounds including seven lignanoid(A, B, C – G)、one steroid (J)、two flavanoid (H, I) were isolated and identified. Their structures were elucidated to be (7’S, 8’R, 8R)-lyoniresinol-9-O-(E)-feruloyl ester (A)、(7’S, 8’R, 8R)-lyoniresinol-9,9’-di-O-(E)-feruloyl ester (B)、(＋)-lyoniresinol 2α-β-D-xylopyranoside (C)、(－)-lyoniresinol 2α-β-D-xylopyranoside (D)、(－)-secoisolariciresinol (E)9,9’-di-O-feruloyl-

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WU, CONG-JIAN, and 吳聰建. "The quantitative analysis of bioactive components in coptidis rhizoma." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/10666035571769965202.

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Chiu, Mei-Chin, and 邱玫謹. "Bioactive Components Isolated from the Leaves of Graptopetalum paraguayense." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/15856866377696116385.

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碩士<br>國立中興大學<br>化學系所<br>100<br>The leaves of Graptopetalum paraguayense E.Walther. were extracted with methanol, then filtered and condensed to remove solvents. The methanol extract of G. paraguayense was dissolved into water and partitioned successively with n-hexane, ethyl acetate. In this research, we study the bioactive compounds in the n-hexane and water fractions. The n-hexane and water fractions were separated by column chromatography on silica gel, gel filtration (Sephadex LH-20) and macroporous resin chromatography (Diaion HP-20) to give ten compounds. Four compounds were isolated in

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Chang, Ya-Chun, and 張雅淳. "Bioactive Components Isolated from the Stem of Graptopetalum paraguayense." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/70279525226047674613.

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碩士<br>國立中興大學<br>化學系所<br>99<br>Graptopetalum paraguayense E. Walther is a plant of the succulent family Crassulaceae, genus Graptopetalum and native to Mexico. In this research, bioactive compounds were isolated and identified for the stems of G. paraguayense. The methanol extract of G. paraguayense was portioned successively with n-hexane, ethyl acetate, n-BuOH, and H2O. The ethyl acetate and n-BuOH layers were separated by column chromatography on silica gel, gel filtration (Sephadex LH-20) and macroporous resin chromatography (Diaion HP-20) to give eleven flavonoids (SF1-SF11). The eleven co

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Vuong, Quan V. "Extraction and preparation of bioactive components from green tea." Thesis, 2012. http://hdl.handle.net/1959.13/935843.

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Research Doctorate - Doctor of Philosophy (PhD)<br>Background: Green tea is a rich source of the strong antioxidant compounds, the catechins, and the unique amino acid, theanine, which have been linked with health benefits such as prevention of certain types of cancers and cardiovascular diseases, decrease in obesity and improvement of the immune system. However, epidemiological studies suggest that the volume of green tea required to obtain health benefits is rather large, ranging from 5-10 cups a day. Therefore, it is questionable whether individuals, especially in western countries where th

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Lin, Yueh-Hsien, and 林岳賢. "Bioactive Components Isolated from the Leaves of Cinnamomum osmophloeum Kanehira." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/96696908981722391156.

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碩士<br>國立中興大學<br>化學系所<br>96<br>Indigenous cinnamon (Cinnamomum osmophloeum Kanehira) (Lauraceae) is an endemic tree that grows in Taiwan’s natural hardwood forest. In this research, bioactive compounds were isolated and identified from the leaves of C. osmophloeum. The methanol extract of C. osmphloeum, was portioned successively with n-hexane, ethyl acetate, n-BuOH, and H2O, and a total of twenty compounds were isolated from these fractions of this plant using column chromatography, high performance liquid chromatography (HPLC), gel filtration and recrystallization methods, etc. Compounds incl

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陳虹華. "Study on Bioactive Components of Antrodia camphorata from Fermentation Culture." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/99753813314389540847.

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碩士<br>國立屏東科技大學<br>生物科技研究所<br>100<br>Antrodia camphorata parasitized only in the inner cavity of the rotten trunk of Cinnamonum kanehirae Hay., an important endemic tree species in Taiwan. In this study, A. camphorata mycelial strains were identified using scanning electronic microscope (SEM), and, then, 4,7-dimethoxy-5-methyl- 1,3-benzodioxol and 4-acetylantroquinonol B were used as two marker components to investigate the components in the fermented products of different A. camphorata mycelia strains grown on different culturing media in different harvest time using high performance liquid ch

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San, Diana Wong San, and 黃珊珊. "Bioactive food components alter one-carbon metabolic kinetics in vivo." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/87s798.

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碩士<br>國立中興大學<br>食品暨應用生物科技學系所<br>102<br>Background Bioactive food components are nonessential nutrients that are present in foods; many of them have been found to elicit the capacity to promote human health by modulation of one or more metabolic processes. The objective of this study was to examine the regulatory effects of specific bioactive food component supplementation on the protein abundance, gene expression and the activity of the key enzymes involved in adoMet homeostasis. Study design Study 1 was conducted to investigate the impacts of compound A supplementation on one-carbon kinetics

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Chen, Yu-Lin, and 陳雨琳. "Bioactive Components Isolated from the aerial part of Portulaca oleracea Linn." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/s5y688.

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碩士<br>國立中興大學<br>化學系所<br>101<br>The methanol extract of the aerial part of Portulaca oleracea Linn was dissolved into water and partitioned successively with n-hexane, n-butanol. In this research, we focus on the bioactive compounds in the n-butanol and water soluble fractions. Which under went a series column chromatographies on macroporous resin chromatography (Diaion HP-20), gel filtration (Sephadex LH-20) and reverse phase ODS column to give eight compounds. Five compounds were isolated from water soluble fraction, two of those were hydroquinones type of compounds：gentisic acid 5-β-D-glucos

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GUO, CHAO-JHENG, and 郭朝正. "Analysis of Bioactive Components by MALDI-TOF MS in Antrodia cinnamomea." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/kwh62y.

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碩士<br>朝陽科技大學<br>應用化學系生化科技碩博士班<br>105<br>Antrodia cinnamomea (AC) is a unique mushroom of Taiwam. Triterpenoids and ubiquinone derivatives possess a variety of biological activities such as anticancer, antimicrobial, anti-inflammatory, antioxidant, and hepatoprotive. In the present study, citrate-capped gold nanoparticles (AuNPs) was utilized as a matrix for the analysis of triterpenoids and ubiquinone derivatives by MALDI-TOF/MS. AuNPs are deposited onto the top of the sample layer, resulting in a increase of the signal intensities of the protonated ions and reproducibility. The method has bee

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Jan, Yih-Joe, and 詹逸州. "Dertermination of Bioactive Components of Paeoniae Radix in Chinese Herbal Drugs." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/59484634233959544364.

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碩士<br>國立師範大學<br>化學學系<br>81<br>Paeoniae Radix is a caommonly used chinese herbal drug, and is proved to have sedative, analgesic, and anti- infammatory effects. In this research, six compounds such as gallic acid, oxypaeoniflorin, albiflorin, paeoniflorin, benzoic acid, and paeonol were used as indexing reference for comparing differences of quality among commercial articles of Paeoniae Radix by means of high performance liquid chromatography, thereby the scientific significance of herbal

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Chen, Yu-Sheng, and 陳昱昇. "Health promoting effects and bioactive components of lacto-fermented soybean meal." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/78948g.

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碩士<br>國立臺灣大學<br>食品科技研究所<br>107<br>Soybeans are rich in proteins, lipids, variety of bioactive compounds and beneficial for human health. Soybean meal (SBM) is the by-product of soybean after oil extraction and can be used as a protein source in animal feed. However, effective use of high nutritional soybean meal is still limited due to its anti-nutritional factors (ANFs), which lead to less nutrient absorption, allergic diarrhea and immunity problems. In feed industry, these problems are often solved by partial replacement of SBM with lacto-fermented soybean meal (LFSM). However, its health pr

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Brown, Cody. "Characterization of Bioactive Components in Decellularized Adipose Tissue Scaffolds for Tissue Engineering." Thesis, 2013. http://hdl.handle.net/1974/8543.

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In previous in vitro and in vivo studies, decellularized adipose tissue (DAT) has demonstrated unique bioactivity, but little is known about the bioactive components preserved in the decellularized scaffold. With the goal of characterizing the bioactive components in the DAT, protein was extracted from DAT samples from 3 donors using 5 different buffers. The resulting DAT extracts were found to have very low protein content so molecular weight fractioning centrifugation was used to concentrate the samples. Concentrated extracts were screened for the presence of the bioactive components adipon

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