Different Approaches to Evaluate Tannin Content and Structure of Selected Plant Extracts – Review and New Aspects M
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Metabolic Engineering of Microbial Cell Factories for Biosynthesis of Flavonoids: a Review
molecules Review Metabolic Engineering of Microbial Cell Factories for Biosynthesis of Flavonoids: A Review Hanghang Lou 1,†, Lifei Hu 2,†, Hongyun Lu 1, Tianyu Wei 1 and Qihe Chen 1,* 1 Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China; [email protected] (H.L.); [email protected] (H.L.); [email protected] (T.W.) 2 Hubei Key Lab of Quality and Safety of Traditional Chinese Medicine & Health Food, Huangshi 435100, China; [email protected] * Correspondence: [email protected]; Tel.: +86-0571-8698-4316 † These authors are equally to this manuscript. Abstract: Flavonoids belong to a class of plant secondary metabolites that have a polyphenol structure. Flavonoids show extensive biological activity, such as antioxidative, anti-inflammatory, anti-mutagenic, anti-cancer, and antibacterial properties, so they are widely used in the food, phar- maceutical, and nutraceutical industries. However, traditional sources of flavonoids are no longer sufficient to meet current demands. In recent years, with the clarification of the biosynthetic pathway of flavonoids and the development of synthetic biology, it has become possible to use synthetic metabolic engineering methods with microorganisms as hosts to produce flavonoids. This article mainly reviews the biosynthetic pathways of flavonoids and the development of microbial expression systems for the production of flavonoids in order to provide a useful reference for further research on synthetic metabolic engineering of flavonoids. Meanwhile, the application of co-culture systems in the biosynthesis of flavonoids is emphasized in this review. Citation: Lou, H.; Hu, L.; Lu, H.; Wei, Keywords: flavonoids; metabolic engineering; co-culture system; biosynthesis; microbial cell factories T.; Chen, Q. -
Direct and Indirect Relationships Between Logging Intensity And
Forest Ecology and Management 474 (2020) 118343 Contents lists available at ScienceDirect Forest Ecology and Management journal homepage: www.elsevier.com/locate/foreco Direct and indirect relationships between logging intensity and regeneration T of two timber species in the Dry Chaco of Argentina ⁎ Andrés Tálamoa, , Javier Lopez de Casenaveb, Lucas A. Garibaldic,d, Mauricio Núñez-Regueiroa,e a Instituto de Bio y Geociencias del Noroeste Argentino (IBIGEO), Laboratorio de Ecología Aplicada a la Conservación (LEAC), Consejo de Investigaciones Científicas y Técnicas (CONICET)-Universidad Nacional de Salta (UNSa), Avenida Bolivia 5150, 4400 Salta, Argentina b Desert Community Ecology Research Team (Ecodes), Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, and IEGEBA (UBA–CONICET), Piso 4, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina c Universidad Nacional de Río Negro, Instituto de Investigaciones en Recursos Naturales, Agroecología y Desarrollo Rural, Río Negro, Argentina d Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones en Recursos Naturales, Agroecología y Desarrollo Rural, Río Negro, Argentina e Universidad Católica de Salta, Campus Castañares, 4400 Salta, Argentina ABSTRACT Dry forests with a high abundance of hardwood tree species, such as the Dry Chaco, have a long history of logging practices. Logging intensity can directly affect forest structure, both in the canopy and in the understory, by extracting larger trees, and by damaging the understory. This in turn can impact the regeneration of timber species, showing an indirect effect of logging. However, little is known about these relationships in Neotropical dry forests. In this observational studyacross 13 sites with different logging histories, we analyze how understory structure (shrub basal area and shrub stem density) and canopy cover are modifiedbylogging intensity (quantified by an index that combines logging selectivity, frequency, and time since the last harvest). -
Mangifera Indica) Cultivars from the Colombian Caribbean
Vol. 11(7), pp. 144-152, 17 February, 2017 DOI: 10.5897/JMPR2017.6335 Article Number: 94A673D62820 ISSN 1996-0875 Journal of Medicinal Plants Research Copyright © 2017 Author(s) retain the copyright of this article http://www.academicjournals.org/JMPR Full Length Research Paper Mangiferin content, carotenoids, tannins and oxygen radical absorbance capacity (ORAC) values of six mango (Mangifera indica) cultivars from the Colombian Caribbean Marcela Morales1, Santiago Zapata1, Tania R. Jaimes1, Stephania Rosales1, Andrés F. Alzate1, Maria Elena Maldonado2, Pedro Zamorano3 and Benjamín A. Rojano1* 1Laboratorio Ciencia de los Alimentos, Universidad Nacional de Colombia, Medellín, Colombia. 2Escuela de nutrición, Universidad de Antioquia, Medellín, Colombia. 3Graduate School, Facultad de Ciencias Agrarias, Universidad Austral de Chile, Chile. Received 18 January, 2017; Accepted 13 February, 2017 Mango is one of the tropical fruits of greater production and consumption in the world, and a rich source of bioactive compounds, with various functional properties such as antioxidant activity. In Colombia, mango’s market is very broad and diverse. However, there are very few studies that determined the content of bioactive secondary metabolites. The objective of this study was to evaluated the content of different metabolites like Mangiferin, carotenoids, tannins, and the antioxidant capacity by oxygen radical absorbance capacity (ORAC) methodology of six cultivars from the Colombian Caribbean region, with total carotenoid values ranging from 24.67 to 196.15 mg of β-carotene/100 g dry pulp; 84.30 to 161.49 mg Catequine eq./100 g dry pulp for the content of condensed tannins, and 91.80 to 259.23 mg/100 g dry pulp for mangiferin content. -
Abstract Book
Welcome to the Ornithological Congress of the Americas! Puerto Iguazú, Misiones, Argentina, from 8–11 August, 2017 Puerto Iguazú is located in the heart of the interior Atlantic Forest and is the portal to the Iguazú Falls, one of the world’s Seven Natural Wonders and a UNESCO World Heritage Site. The area surrounding Puerto Iguazú, the province of Misiones and neighboring regions of Paraguay and Brazil offers many scenic attractions and natural areas such as Iguazú National Park, and provides unique opportunities for birdwatching. Over 500 species have been recorded, including many Atlantic Forest endemics like the Blue Manakin (Chiroxiphia caudata), the emblem of our congress. This is the first meeting collaboratively organized by the Association of Field Ornithologists, Sociedade Brasileira de Ornitologia and Aves Argentinas, and promises to be an outstanding professional experience for both students and researchers. The congress will feature workshops, symposia, over 400 scientific presentations, 7 internationally renowned plenary speakers, and a celebration of 100 years of Aves Argentinas! Enjoy the book of abstracts! ORGANIZING COMMITTEE CHAIR: Valentina Ferretti, Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA- CONICET) and Association of Field Ornithologists (AFO) Andrés Bosso, Administración de Parques Nacionales (Ministerio de Ambiente y Desarrollo Sustentable) Reed Bowman, Archbold Biological Station and Association of Field Ornithologists (AFO) Gustavo Sebastián Cabanne, División Ornitología, Museo Argentino -
Redalyc. Anatomy and Fruit Development in Schinopsis
Anales del Jardín Botánico de Madrid ISSN: 0211-1322 [email protected] Consejo Superior de Investigaciones Científicas España González, Ana María; Vesprini, José Luis Anatomy and fruit development in Schinopsis balansae (Anacardiaceae) Anales del Jardín Botánico de Madrid, vol. 67, núm. 2, julio-diciembre, 2010, pp. 103-112 Consejo Superior de Investigaciones Científicas Madrid, España Available in: http://www.redalyc.org/articulo.oa?id=55617069004 Abstract Schinopsis balansae Engl. is a dioecious tree; reproduction is by woody samaras containing a single seed. Fruit set is high, even in isolated trees, empty fruits are frequent and account for a high proportion of the total fruit production. To describe the anatomy and the ontogeny of seeded and seedless fruits, flowers and fruits at different development stages from bagged and pollen exposed flowers were studied. The development and the anatomy of the pericarp in seeded and parthenocarpic fruits did not differ. It consisted in an exocarp formed sensu lato from the external epidermis of the ovary and some layers of the underlying parenchyma. The mature mesocarp was constituted by a sclerified tissue and lysigenous channels. The fruit is of Anacardium type: the endocarp presented three sclerenchymatic and a crystalliferous layer. The endocarp development was also sensu lato because it was formed from the epidermis and the hypodermis of the carpel. This organization agrees with the only species described in the genus: S. haenkeana Engl. Schinopsis balansae is able to produce parthenocarpic fruits in the absence of pollination. Empty fruits from free exposed flowers presented embryos arrested at different stages, although total absence of an embryo was the most common condition. -
Antioxidant Rich Extracts of Terminalia Ferdinandiana Inhibit the Growth of Foodborne Bacteria
foods Article Antioxidant Rich Extracts of Terminalia ferdinandiana Inhibit the Growth of Foodborne Bacteria Saleha Akter 1 , Michael E. Netzel 1, Ujang Tinggi 2, Simone A. Osborne 3, Mary T. Fletcher 1 and Yasmina Sultanbawa 1,* 1 Queensland Alliance for Agriculture and Food Innovation (QAAFI), The University of Queensland, Health and Food Sciences Precinct, 39 Kessels Rd, Coopers Plains, QLD 4108, Australia 2 Queensland Health Forensic and Scientific Services, 39 Kessels Rd, Coopers Plains, QLD 4108, Australia 3 CSIRO Agriculture and Food, 306 Carmody Road, St Lucia, QLD 4067, Australia * Correspondence: [email protected]; Tel.: +617-344-32471 Received: 26 June 2019; Accepted: 20 July 2019; Published: 24 July 2019 Abstract: Terminalia ferdinandiana (Kakadu plum) is a native Australian plant containing phytochemicals with antioxidant capacity. In the search for alternatives to synthetic preservatives, antioxidants from plants and herbs are increasingly being investigated for the preservation of food. In this study, extracts were prepared from Terminalia ferdinandiana fruit, leaves, seedcoats, and bark using different solvents. Hydrolysable and condensed tannin contents in the extracts were determined, as well as antioxidant capacity, by measuring the total phenolic content (TPC) and free radical scavenging activity using the 2, 2-diphenyl-1-picrylhydrazyl (DPPH) assay. Total phenolic content was higher in the fruits and barks with methanol extracts, containing the highest TPC, hydrolysable tannins, and DPPH-free radical scavenging capacity (12.2 2.8 g/100 g dry weight ± (DW), 55 2 mg/100 g DW, and 93% respectively). Saponins and condensed tannins were highest in ± bark extracts (7.0 0.2 and 6.5 0.7 g/100 g DW). -
BIOSYNTHESIS of PROANTHOCYANIDINS in BARLEY: GENETIC CONTROL of the CONVERSION of DIHYDROQUERCETIN to CATECHIN and PROCYANIDINS by KLAUS NYEGAARD KRISTIANSEN
Carlsberg Res. Commun. Vol. 49, p. 503-524, 1984 BIOSYNTHESIS OF PROANTHOCYANIDINS IN BARLEY: GENETIC CONTROL OF THE CONVERSION OF DIHYDROQUERCETIN TO CATECHIN AND PROCYANIDINS by KLAUS NYEGAARD KRISTIANSEN Department of Physiology, Carlsberg Laboratory, Gamle Carlsberg Vej 10, DK-2500 Copenhagen Valby and Institute of Genetics, University of Copenhagen Oster Farimagsgade 2A, DK-1353 Copenhagen K Keywords: Flavonoid biosynthesis, leucocyanidin isomers, ant mutants, genetic control, high pressure liquid chromatography, 'H NMR, mass spectroscopy The conversion of dihydroquercetin to catechin and procyanidin was studied in maturing wild type barley (Hordeum vulgare L., cv. Nordal) seeds and proanthocyanidin free mutants blocked in four different genes, ant 13, ant 17. ant 18 and ant 19. In the wild type barley grown under controlled conditions, maximal rate of synthesis of catechin, procyanidin B3 and procyanidin C2 occurred 8-16 days after flowering. Dihydroquercetin was radioactively labelled by feeding ( 1-'4C)-acetate and (2-'4C)-acetate to flowerbuds of a petunia mutant accumulating this flavonoid. When fed to pericarp-testa tissue of wild type barley labelled catechin, procyanidin B3 and procyanidin C2 were synthesized establishing dihydroquercetin as a precursor of these compounds. In addition labelled 2,3-trans-3,4-cis-leucocyanidin was synthesized indicating that this compound is an intermediate. The leucocyanidin was identified by co-chromatography with an authentic standard prepared chemically by reduction ofdihydroquercetin with NaBH,. The major product of this reduction, however, was the 2,3-trans-3,4-trans-leuco- cyanidin. Only mutant ant 18-102 accumulated dihydroquercetin in the seeds. Feeding ('4C)-dihydroquercetin to pericarp-testa tissue from the mutants revealed that ant 17-139 was capable of synthesizing significant amounts of labelled catechin and procyanidin, whereas ant 13-101, ant 13-152, ant 18-102 and ant 19-109 synthesized none or only very small amounts of these compounds. -
(12) United States Patent (10) Patent No.: US 9.248,158 B2 Brown Et Al
USOO92481.58B2 (12) United States Patent (10) Patent No.: US 9.248,158 B2 BrOWn et al. (45) Date of Patent: Feb. 2, 2016 (54) HERBAL SUPPLEMENTS AND METHODS OF 2008/022O101 A1* 9, 2008 Buchwald-Werner ... A23L 1,293 USE THEREOF 424,728 2008/0268024 A1* 10, 2008 Rull Prous et al. ........... 424/439 (71) Applicant: KBS Research, LLC, Plano, TX (US) 2010, 0008887 A1 1/2010 Nakamoto et al. (72) Inventors: Kenneth Brown, Plano, TX (US); FOREIGN PATENT DOCUMENTS Brandi M. Scott, Plano, TX (US) FR 2770228 A1 * 4, 1999 WO 2012131728 A2 10, 2012 (73) Assignee: KBS RESEARCH, LLC, Plano, TX (US) OTHER PUBLICATIONS (*) Notice: Subject to any disclaimer, the term of this Zotte et al., Dietary inclusion of tannin extract from red quebracho patent is extended or adjusted under 35 trees (Schinopsis spp.) in the rabbit meat production, 2009, Ital J U.S.C. 154(b) by 0 days. Anim Sci., 8:784-786.* Becker, K., et al. “Effects of dietary tannic acid and quebracho tannin on growth performance and metabolic rates of common carp (21) Appl. No.: 14/072,502 (Cyprinus carpio L.), Aquaculture, May 15, 1999, vol. 175, Issues Filed: Nov. 5, 2013 3-4, pp. 327-335. (22) Durmic, Z. et al. “Bioactive plants and plant products: Effects on Prior Publication Data animal function, health and welfare'. Animal Feed Science and Tech (65) nology, Sep. 21, 2012, vol. 176, Issues 1-4, pp. 150-162. US 2014/01.41108A1 May 22, 2014 Search Report and Written Opinion mailed Jan. 29, 2014, in corre sponding International Patent Application No. -
DOCTOR of the University Montpellier
Dissertation in Co-supervision: University of Tehran-University of Montpellier To obtain the degree of DOCTOR of the University Montpellier Title Preservation of plywood against biological attack with low environmental impact using tannin-boron preservative By Davood EFHAMISISI Thesis defense planned Monday, 21 September 2015 Jury Mr. Bertrand CHARRIER University of Pau and Pays de l'Adour Reviewer Mr. Ghanbar EBRAHIMI University of Tehran Reviewer Mr. Asghar OMIDVAR Gorgan University of Agricultural Sciences Examiner and Natural Resources Mr. Saeid NEZAMABADI University of Montpellier Examiner Mr. Kambiz POURTAHMASI University of Tehran Examiner Mrs. Marie-France THEVENON CIRAD, Montpellier Thesis director Mr. Yahya HAMZEH University of Tehran Thesis director Mr. Ali-Naghi KARIMI University of Tehran Co-director Mr. Antonio PIZZI University of Lorraine Co-director i Thèse en co-tutelle: l'Université de Téhéran-l'université de Montpellier Pour obtenir le grade de DOCTEUR de l'université de Montpellier Titre Protection à faible impact environnemental des contreplaqués avec des associations tannins-bore Par Davood EFHAMISISI Soutenance de thèse prévue le lundi, 21 Septembre 2015 Jury M. Bertrand CHARRIER Université de Pau et des Pays de l'Adour Rapporteur M. Ghanbar EBRAHIMI Université de Téhéran Rapporteur M. Asghar OMIDVAR Université Gorgan des sciences agricoles et Examinateur des ressources naturelles M. Saeid NEZAMABADI Université de Montpellier Examinateur M. Kambiz POURTAHMASI Université de Téhéran Examinateur Mme. Marie-France THEVENON CIRAD, Montpellier Directeur de Thèse M. Yahya HAMZEH Université de Téhéran Directeur de Thèse M. Ali-Naghi KARIMI Université de Téhéran Co-directeur M. Antonio PIZZI Université de Lorraine Co-directeur ii Acknowledgments I would like to express my deepest gratitude and appreciation to my director, Prof. -
Cintia Luz.Pdf
Cíntia Luíza da Silva Luz Filogenia e sistemática de Schinus L. (Anacardiaceae), com revisão de um clado endêmico das matas nebulares andinas Phylogeny and systematics of Schinus L. (Anacardiaceae), with revision of a clade endemic to the Andean cloud forests Tese apresentada ao Instituto de Biociências da Universidade de São Paulo, para obtenção de Título de Doutor em Ciências, na Área de Botânica. Orientador: Dr. José Rubens Pirani São Paulo 2017 Luz, Cíntia Luíza da Silva Filogenia e sistemática de Schinus L. (Anacardiaceae), com revisão de um clado endêmico das matas nebulares andinas Número de páginas: 176 Tese (Doutorado) - Instituto de Biociências da Universidade de São Paulo. Departamento de Botânica. 1. Anacardiaceae 2. Schinus 3. Filogenia 4. Taxonomia vegetal I. Universidade de São Paulo. Instituto de Biociências. Departamento de Botânica Comissão julgadora: ______________________________ ______________________________ Prof(a). Dr.(a) Prof(a). Dr.(a) ______________________________ ______________________________ Prof(a). Dr.(a) Prof(a). Dr.(a) _____________________________________ Prof. Dr. José Rubens Pirani Orientador Ao Luciano Luz, pelo entusiasmo botânico, companheirismo e dedicação aos Schinus Esta é a estória. Ia um menino, com os tios, passar dias no lugar onde se construía a grande cidade. Era uma viagem inventada no feliz; para ele, produzia-se em caso de sonho. Saíam ainda com o escuro, o ar fino de cheiros desconhecidos. A mãe e o pai vinham trazê-lo ao aeroporto. A tia e o tio tomavam conta dele, justínhamente. Sorria-se, saudava-se, todos se ouviam e falavam. O avião era da companhia, especial, de quatro lugares. Respondiam-lhe a todas as perguntas, até o piloto conversou com ele. -
Modification Et Stabilisation De La Réactivité De
Modification et stabilisation de la réactivité de tanins traités chimiquement : applications à la préparation de résines adhésives et de mousses écosoutenables Samuele Giovando To cite this version: Samuele Giovando. Modification et stabilisation de la réactivité de tanins traités chimiquement : applications à la préparation de résines adhésives et de mousses écosoutenables. Alimentation et Nutrition. Université de Lorraine, 2013. Français. NNT : 2013LORR0227. tel-01750522 HAL Id: tel-01750522 https://hal.univ-lorraine.fr/tel-01750522 Submitted on 29 Mar 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. AVERTISSEMENT Ce document est le fruit d'un long travail approuvé par le jury de soutenance et mis à disposition de l'ensemble de la communauté universitaire élargie. Il est soumis à la propriété intellectuelle de l'auteur. Ceci implique une obligation de citation et de référencement lors de l’utilisation de ce document. D'autre part, toute contrefaçon, plagiat, reproduction illicite encourt une poursuite pénale. Contact : [email protected] LIENS Code de la Propriété Intellectuelle. articles L 122. 4 Code de la Propriété Intellectuelle. articles L 335.2- L 335.10 http://www.cfcopies.com/V2/leg/leg_droi.php http://www.culture.gouv.fr/culture/infos-pratiques/droits/protection.htm UFR. -
2.1 Structure Elucidation 14 2.2 Synthesis 15
, HIERDIE EKSEMPlAAR MAG ONDER University Free State GEEN OMSTANDIGHEDE UIT DIE mml~lmmMMllllllln34300000347405 Universiteit Vrystaat BIBLIOTEEK VER\VYDER WORD NIE THE STRUCTURE AND SYNTHESIS OF OLIGOFLA VANOIDS AND OLIGOSTILBENES FROM CASSIA ABBREVIATA. Dissertation submitted infulfilment of the requirements for the degree Master of Science in the Department of Chemisrty Faculty of Natural Sciences at University of Orange Free State Bloemfontein by Makhosazana Claribel Mthembu Supervisor: Prof. E. Malan Co-supervisor Dr J. C. Coetzee JANUARY 2000 ACKNOWLEDGEMENTS I wish to express my gratitude to the following people: • God the Almighty for the love and support he has shown me throughout my studies. • My supervisors Professor f. Malan and Dr j. C. Coetzee, their guidance and helpful recommendations throughout this study will always be appreciated: • • Proff. Malan for his constructive guidance, critism and invaluable support in putting this work in paper. • Dr j. C. Coetzeefor recording my NMR spectra, his encourangement and unselfish assistance. • Proff. V. Brandt ,D. Ferrdra and NRF sponsor for granting me this opportumity. • Finally the members of the fomily and [riends, Irene,jaqui, Zanele, Vusl and Busi for their love, tolerance and constant encouragement, I owe the greatest debt to them. M. C. Mthembu Table of Content Abstract LITERATURE SURVERY CHAPTER 1: MONOMERIC STILBENES 1 1.1 Nomenclature 1 1.2 Structure and Natural Occurrence 3 1.3 Structure Elucidation 5 1.4 Synthesis 5 CHAPTER 2: OLIGOMERIC STILBENES 11 2.1 Structure Elucidation 14 2.2 Synthesis 15 CHAPTER 3.: FLA VAN-3-0LS 16 3.1 Nomenclature 16 3.2 Structure and Natural Occurrence 17 3.3 Structure Elucidation 19 CHAPTER 4: LEUCOANTHOCY ANIDINS.