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The Synthesis and Biological Evaluation of Potential ABA-Like Analogues: Prospective Substrates to Control Berry Ripening of Wine Grapes
The Synthesis and Biological Evaluation of Potential ABA-Like Analogues: Prospective Substrates to Control Berry Ripening of Wine Grapes. A thesis presented in fulfilment of the requirements for the degree of Doctor of Philosophy Ruyi Li BSc (Bio-Eng), MSc (Vit./Oen.) Northwest A&F University The University of Adelaide School of Agriculture, Food and Wine July 2012 Table of Contents Abstract........................................................................................................................... iii Declaration...................................................................................................................... vi Acknowledgements......................................................................................................... vii Abbreviations.................................................................................................................. ix Figures, Schemes and Tables......................................................................................... xi CHAPTER 1: INTRODUCTION................................................................................ 1 1.1 General Introduction................................................................................................... 1 1.2 Carotenoids................................................................................................................. 3 1.2.1 Definition, types and identification of carotenoids................................................. 3 1.2.2 Factors influencing the concentration of carotenoids -
Notices Federal Register Vol
28416 Notices Federal Register Vol. 62, No. 100 Friday, May 23, 1997 This section of the FEDERAL REGISTER 1255 22nd Street, NW, Room 311, West interests of consumers. Through contains documents other than rules or End Court Building, Washington, DC adoption of food standards, codes of proposed rules that are applicable to the 20250±3700; (202) 418±8852. For practice, and other guidelines public. Notices of hearings and investigations, information pertaining to particular developed by its committees and by committee meetings, agency decisions and committees, the delegate of that promoting their adoption and rulings, delegations of authority, filing of petitions and applications and agency committee may be contacted. (A implementation by governments, Codex statements of organization and functions are complete list of U.S. delegates and seeks to ensure that the world's food examples of documents appearing in this alternate delegates can be found in supply is sound, wholesome, free from section. Appendix 1 to this notice.) adulteration, and correctly labeled. In SUPPLEMENTARY INFORMATION: the United States, the United States Department of Agriculture (USDA); the DEPARTMENT OF AGRICULTURE Background Food and Drug Administration (FDA), The World Trade Organization (WTO) Department of Health and Human Food Safety and Inspection Service was established on January 1, 1995, as Services (HHS), and the Environmental [Docket No. 97±026N] the common international institutional Protection Agency (EPA) manage and framework for the conduct of trade carry out U.S. Codex activities. International Standard-Setting relations among its members in matters As the agency responsible for Activities related to the Uruguay Round informing the public of the sanitary and Agreements. -
Ricinus Cell Cultures. I. Identification of Rhodoxanthin
Hormone Induced Changes in Carotenoid Composition in Ricinus Cell Cultures. I. Identification of Rhodoxanthin Hartmut Kayser Abteilung für Allgemeine Zoologie and Armin R. Gemmrich Abteilung für Allgemeine Botanik, Universität Ulm, Postfach 40 66. D-7900 Ulm/Donau Z. Naturforsch. 39c, 50-54 (1984); received November 10. 1983 Rhodoxanthin. Carotenoids, Plant Cell Cultures, Plant Hormones, Ricinus communis When cell cultures of Ricinus communis are grown in light and with kinetin as the sole growth factor red cells are formed. The red pigmentation is due to the accumulation o f rhodoxanthin which is the major carotenoid in these cultures. The identification of this retro-type carotenoid is based on electronic and mass spectra, on chemical transformation to zeaxanthin, and on comparison with an authentic sample. Rhodoxanthin is not present in any part of the intact plant. The major yellow carotenoid in the red cultures is lutein. Introduction Materials and Methods Chloroplasts of higher plants contain a fairly Plant material constant pattern of carotenoids which function as accessory pigments in photosynthesis and protect The callus cultures are derived from the endo the chlorophylls and chloroplast enzymes against sperm of the castor bean. Ricinus communis; only photodestruction [1]. In contrast to this type of strain A, as characterized elsewhere [5]H was used. plastids, chromoplasts contain a great variety of The cells were cultivated under fluorescent white carotenoids, some of which are not found in other light (Osram L65W/32, 5 W /m 2) at 20 °C On a solid types of plastids. These pigments are responsible for Gamborg B5 medium [7] supplemented with 2% the bright red. -
Analysis of Chemical Composition of Cowpea Floral Volatiles and Nectar
i ANALYSIS OF CHEMICAL COMPOSITION OF COWPEA FLORAL VOLATILES AND NECTAR BY CONSOLATA ATIENO AGER, B.Ed (Kenyatta) I56/7423/2001 THESIS SUBMITTED IN PARTIAL FULFILLMENT FOR THE REQUIREMENTS OF THE DEGREE OF MASTER OF SCIENCE IN THE SCHOOL OF PURE AND APPLIED SCIENCES, KENYATTA UNIVERSITY NOVEMBER 2009 1 DECLARATION I hereby declare that this is my own original work and it has not been presented for award of a degree in any other university. Signed………………………..Date……………………… Consolata Atieno Ager Department of Chemistry Kenyatta University We confirm that the work reported in this thesis was carried out by the candidate under our supervision. Signed……………………..Date……………………… Prof. Isaiah O. Ndiege Department of Chemistry Kenyatta University Signed……………………..Date……………………… Dr. Sauda Swaleh Department of Chemistry Kenyatta University Signed……………………..Date……………………… Prof. Ahmed Hassanali Behavioral and Chemical Ecology Department (BCED) International Center of Insect Physiology and Ecology (ICIPE) Signed……………………..Date……………………… Dr. Remmy Pasquet Molecular Biology and Biochemistry Department (MBBD) 1 2 International Center of Insect Physiology and Ecology (ICIPE) DEDICATION To my husband Godfrey Isaac Ochieng‟ and my children Mercy, Humphrey and Jeffrey 2 3 ACKNOWLEDGEMENTS Above all, I want to glorify and exalt the Almighty God for giving me sound health and mind during the entire research period. I register my sincere appreciation to my research supervisors: Prof. Isaiah Ndiege, Prof. Ahmed Hassanali, Dr. Remmy Pasquet and Dr. Sauda Swaleh for the guidance, comments, discussions, supervision, advice, support and encouragement they gave me during my research. Special thanks to all the staff of BCED and MBBD departments at ICIPE for technical assistance and cooperation during my stay at the center. -
Characterization of the Novel Role of Ninab Orthologs from Bombyx Mori and Tribolium Castaneum T
Insect Biochemistry and Molecular Biology 109 (2019) 106–115 Contents lists available at ScienceDirect Insect Biochemistry and Molecular Biology journal homepage: www.elsevier.com/locate/ibmb Characterization of the novel role of NinaB orthologs from Bombyx mori and Tribolium castaneum T Chunli Chaia, Xin Xua, Weizhong Sunb, Fang Zhanga, Chuan Yea, Guangshu Dinga, Jiantao Lia, ∗ Guoxuan Zhonga,c, Wei Xiaod, Binbin Liue, Johannes von Lintigf, Cheng Lua, a State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Biotechnology, Southwest University, Chongqing 400715, China b College of Animal Science and Technology, Southwest University, Chongqing 400715, China c Life Sciences Institute and the Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou 310058, China d College of Plant Protection, Southwest University, Chongqing 400715, China e Sericulture Research Institute, Sichuan Academy of Agricultural Science, Chengdu 610066, China f Department of Pharmacology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA ABSTRACT Carotenoids can be enzymatically converted to apocarotenoids by carotenoid cleavage dioxygenases. Insect genomes encode only one member of this ancestral enzyme family. We cloned and characterized the ninaB genes from the silk worm (Bombyx mori) and the flour beetle (Tribolium castaneum). We expressed BmNinaB and TcNinaB in E. coli and analyzed their biochemical properties. Both enzymes catalyzed a conversion of carotenoids into cis-retinoids. The enzymes catalyzed a combined trans to cis isomerization at the C11, C12 double bond and oxidative cleavage reaction at the C15, C15′ bond of the carotenoid carbon backbone. Analyses of the spatial and temporal expression patterns revealed that ninaB genes were differentially expressed during the beetle and moth life cycles with high expression in reproductive organs. -
Pigment Palette by Dr
Tree Leaf Color Series WSFNR08-34 Sept. 2008 Pigment Palette by Dr. Kim D. Coder, Warnell School of Forestry & Natural Resources, University of Georgia Autumn tree colors grace our landscapes. The palette of potential colors is as diverse as the natural world. The climate-induced senescence process that trees use to pass into their Winter rest period can present many colors to the eye. The colored pigments produced by trees can be generally divided into the green drapes of tree life, bright oil paints, subtle water colors, and sullen earth tones. Unveiling Overpowering greens of summer foliage come from chlorophyll pigments. Green colors can hide and dilute other colors. As chlorophyll contents decline in fall, other pigments are revealed or produced in tree leaves. As different pigments are fading, being produced, or changing inside leaves, a host of dynamic color changes result. Taken altogether, the various coloring agents can yield an almost infinite combination of leaf colors. The primary colorants of fall tree leaves are carotenoid and flavonoid pigments mixed over a variable brown background. There are many tree colors. The bright, long lasting oil paints-like colors are carotene pigments produc- ing intense red, orange, and yellow. A chemical associate of the carotenes are xanthophylls which produce yellow and tan colors. The short-lived, highly variable watercolor-like colors are anthocyanin pigments produc- ing soft red, pink, purple and blue. Tannins are common water soluble colorants that produce medium and dark browns. The base color of tree leaf components are light brown. In some tree leaves there are pale cream colors and blueing agents which impact color expression. -
STB046 1939 the Carotenoid Pigments
THE CAROTENOID PIGMENTS Occurrence, Properties, Methods of Determination, and Metabolism by the Hen FOREWORD This bulletin has been written as a brief review of the carotenoid pigments. The occurrence, properties, and methods of determina- tion of this interesting class of compounds are considered, and special consideration is given to their utilization by the hen. The work has been done in the departments of Chemistry and Poultry Husbandry, cooperating, on Project No. 193. The project was started in 1932 and several workers have aided in the accumulation of information. The following should be men- tioned for their contributions: Mr. Wilbor Owens Wilson, Mr. C. L. Gish, Mr. H. F. Freeman, Mr. Ben Kropp, and Mr. William Proudfit. We are also greatly indebted to Dr. H. D. Branion of the Depart- ment of Animal Nutrition, Ontario Agricultural College, Guelph, Canada, for his fine coöperative studies on the vitamin A potency of corn. A number of unpublished observations from these laboratories and others have been organized and included in this bulletin. Extensive use has also been made of the material presented in Zechmeister’s “Carotenoide,” and “Leaf Xanthophylls” by Strain. It is hoped that this work be considered in no way a complete story of the metab- olism of carotenoid pigments in the fowl, but rather an interpreta- tion of the information which is available at this time. The wide range of distribution of the carotenoid pigments in such a wide variety of organisms points strongly to the importance of these materials biologically. In recent years chemical and physio- logical studies of the carotenoids have revealed numerous relation- ships to other classes of substances in the plant and animal world. -
Livity Lessons 1A (Colon Health E-Book)
Livity Lessons 1A (Colon Health E-Book) Greetings and thank you for taking a proactive approach to your “health care” reform. A bit about the author behind levity lessons, I began to have a vested interest in my health many years ago however, I became proactive in my health choices roughly in 2006. Grass Roots Health Care “reform” is a long journey and no one will arrive over night. To some the information provided may seem to be overbearing and taxing but be patient and remember your health is at stake. The modern world bombards us with all things appeasing to the eyes and deadly to body and soul. Growing up in a Carribean house my family use to have a saying “what sweet you is going to sour you”. As a child I didn’t understand but I grew to understand that proverb. The things that we so delight in “ie junk foods, process foods, fast foods” are going to take a toll one day. Recently in 2008 my family and I journey to the East African country of Ethiopia. It was there that I saw a stark contrast between people who eat pure unprocessed foods vs. people who eat processed foods with chemical additives and toxic drinking water. Way before I left for Africa I began to “watch what I eat” however I was still carrying around extra weight. In my eight months away I lost over 25 pounds and it was not from lack of eating. The diet there was one of fresh fruits and vegetables, whole grains. -
GENERAL STANDARD for FOOD ADDITIVES CODEX STAN 192-1995 (Rev
CAC/STAN 192-1995, Rev. 5 (2004) Page 1 of 140 GENERAL STANDARD FOR FOOD ADDITIVES CODEX STAN 192-1995 (Rev. 5-2004) PREAMBLE 1. SCOPE 1.1 PERMITTED FOOD ADDITIVES Only the food additives listed herein are permitted for use in foods in conformance with the provisions of this Standard.1 Only food additives which have been evaluated by the Joint FAO/WHO Expert Committee on Food Additives2 (JECFA) and found acceptable for use in foods are included in this Standard. 1.2 FOODS IN WHICH ADDITIVES MAY BE USED This Standard sets forth the conditions under which permitted food additives may be used in all foods, whether or not they have previously been standardized by Codex. The food additive provisions of Codex Commodity Standards shall be included in and superseded by the provisions of this Standard. These provisions also comply with the other requirements of the Preamble. 1.3 FOODS IN WHICH ADDITIVES MAY NOT BE USED Food categories or individual food items where the use of food additives are not allowed or are restricted are defined by this Standard. 1.4 THE PERMITTED LEVELS OF USE FOR FOOD ADDITIVES The primary objective of establishing permitted levels of use of food additives in various food groups is to ensure that the intake of additives does not exceed the acceptable daily intake. The food additives covered by this standard and their maximum levels of use are based in part on the food additive provisions of previously established Codex commodity standards, or upon the request of governments after subjecting the requested maximum levels to an appropriate method which would verify the compatibility of a proposed maximum level with the ADI. -
Identifying Anatomical Sites of Carotenoid Metabolism in Birds
Naturwissenschaften (2009) 96:987–988 DOI 10.1007/s00114-009-0544-7 COMMENTS & REPLIES Identifying anatomical sites of carotenoid metabolism in birds Kevin J. McGraw Received: 8 April 2009 /Accepted: 9 April 2009 /Published online: 20 May 2009 # Springer-Verlag 2009 Carotenoid metabolism has long interested plant and animal identification (Wyss 2004), isotope labeling of precursors biochemists (Goodwin 1986; Lu and Li 2008). Identifying (Burri and Clifford 2004), and by inference from ex vivo tissue sites and enzymes responsible for carotenoid trans- chemical reactions (Khachik et al. 1998) or where caroten- formations (e.g., β-carotene to vitamin A) has been oid types exist in no other tissue type (McGraw 2004). challenging. Colorful birds have recently become a model del Val et al. (2009) undertook none of these types of for studying carotenoid nutrition and metabolism, in the investigation. The first step in such research is to rule out a context of sexual selection and honest signaling (McGraw dietary source to the pigment, but the authors did not study 2006). In a recent paper published in Naturwissenschaften, food carotenoids in crossbills; they sampled only liver, del Val et al. (2009) described carotenoid profiles in tissues skin, and feathers from accidentally field-killed animals and of male common crossbills (Loxia curvirostra), with the drew blood from molting birds. While red carotenoids are aim of localizing metabolic site(s) for a ketocarotenoid not currently thought to be common in diets of herbivorous pigment—3-hydroxy-echinenone (3HE)—present in red land birds (e.g., rubixanthin in rose hips, rhodoxanthin in feathers. They found 3HE in blood and liver, unlike Taxus berries), this is a key assumption to biochemically previous studies of colorful songbirds where metabolized validate for any species, given the paucity of information integumentary carotenoids were found only at peripheral on avian food carotenoids. -
Plant Carotenoids As Pigment Sources in Laying Hen Diets: Effect on Yolk Color, Carotenoid Content, Oxidative Stability and Sensory Properties of Eggs
foods Article Plant Carotenoids as Pigment Sources in Laying Hen Diets: Effect on Yolk Color, Carotenoid Content, Oxidative Stability and Sensory Properties of Eggs Kristina Kljak 1 , Klaudija Carovi´c-Stanko 1,2,* , Ivica Kos 1 , Zlatko Janjeˇci´c 1 , Goran Kiš 1, Marija Duvnjak 1 , Toni Safner 1,2 and Dalibor Bedekovi´c 1 1 Faculty of Agriculture, University of Zagreb, Svetošimunska cesta 25, 10000 Zagreb, Croatia; [email protected] (K.K.); [email protected] (I.K.); [email protected] (Z.J.); [email protected] (G.K.); [email protected] (M.D.); [email protected] (T.S.); [email protected] (D.B.) 2 Centre of Excellence for Biodiversity and Molecular Plant Breeding (CoE CroP-BioDiv), Svetošimunska cesta 25, 10000 Zagreb, Croatia * Correspondence: [email protected]; Tel.: +385-1-2393-622 Abstract: The aim of this study was to evaluate the effect of a supplementation diet for hens consisting of dried basil herb and flowers of calendula and dandelion for color, carotenoid content, iron-induced oxidative stability, and sensory properties of egg yolk compared with commercial pigment (control) and marigold flower. The plant parts were supplemented in diets at two levels: 1% and 3%. In response to dietary content, yolks from all diets differed in carotenoid profile (p < 0.001). The Citation: Kljak, K.; Carovi´c-Stanko, 3% supplementation level resulted in a similar total carotenoid content as the control (21.25 vs. K.; Kos, I.; Janjeˇci´c,Z.; Kiš, G.; 21.79 µg/g), but by 3-fold lower compared to the 3% marigold (66.95 µg/g). The tested plants did Duvnjak, M.; Safner, T.; Bedekovi´c,D. -
Matters Referred from the Codex Alimentarius
S ALINORM 04/27/12 Abril de 2004 PROGRAMA CONJUNTO FAO/OMS SOBRE NORMAS ALIMENTARIAS COMISIÓN DEL CODEX ALIMENTARIUS 27º período de sesiones Ginebra, Suiza, 28 de junio – 3 de julio de 2004 INFORME DE LA 36ª REUNIÓN DEL COMITÉ DEL CODEX SOBRE ADITIVOS ALIMENTARIOS Y CONTAMINANTES DE LOS ALIMENTOS Rotterdam, Países Bajos 22-26 de marzo de 2004 Nota: Este informe contiene la Carta Circular del Codex CL 2004/9-FAC J2262/S CX 4/30.2 CL 2004/9-FAC Abril de 2004 A: - Puntos de contacto del Codex - Organismos internacionales interesados DE: Secretario de la Comisión del Codex Alimentarius Programa Conjunto FAO/OMS sobre Normas Alimentarias Viale delle Terme di Caracalla, 00100 Roma, Italia ASUNTO: DISTRIBUCIÓN DEL INFORME DE LA 36ª REUNIÓN DEL COMITÉ DEL CODEX SOBRE ADITIVOS ALIMENTARIOS Y CONTAMINANTES DE LOS ALIMENTOS (ALINORM 04/27/12) El informe de la 36ª reunión del Comité del Codex sobre Aditivos Alimentarios y Contaminantes de los Alimentos se examinará en el 27º período de sesiones de la Comisión del Codex Alimentarius (Ginebra, Suiza, 28 de junio - 3 de julio de 2004). PARTE A: CUESTIONES QUE SE SOMETEN A LA ADOPCIÓN DE LA COMISIÓN DEL CODEX ALIMENTARIUS EN SU 27º PERÍODO DE SESIONES PROYECTOS Y ANTEPROYECTOS DE NORMAS Y TEXTOS AFINES EN LOS TRÁMITES 8 Y 5/8 DEL PROCEDIMIENTO UNIFORME, RESPECTIVAMENTE 1. Proyecto de Principios de Análisis de Riesgos aplicados por el Comité del Codex sobre Aditivos Alimentarios y Contaminantes de los Alimentos, en el Trámite 8 (párr. 39 y Apéndice II). 2. Proyecto de Sistema de Clasificación de Alimentos de la Norma General del Codex para los Aditivos Alimentarios, en el Trámite 8 (párr.