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30 Part 172—Food Additives Per- Mitted for Direct Addition to Food for Human Consump- Tion
Pt. 172 21 CFR Ch. I (4–1–11 Edition) shall be furnished in the form specified Subpart D—Special Dietary and Nutritional in §§ 171.1 and 171.100 for submitting pe- Additives titions. 172.310 Aluminum nicotinate. [42 FR 14491, Mar. 15, 1977, as amended at 42 172.315 Nicotinamide-ascorbic acid complex. FR 15674, Mar. 22, 1977] 172.320 Amino acids. 172.325 Bakers yeast protein. 172.330 Calcium pantothenate, calcium chlo- PART 172—FOOD ADDITIVES PER- ride double salt. MITTED FOR DIRECT ADDITION TO 172.335 D-Pantothenamide. FOOD FOR HUMAN CONSUMP- 172.340 Fish protein isolate. 172.345 Folic acid (folacin). TION 172.350 Fumaric acid and salts of fumaric acid. Subpart A—General Provisions 172.365 Kelp. 172.370 Iron-choline citrate complex. Sec. 172.372 N-Acetyl-L-methionine. 172.5 General provisions for direct food ad- 172.375 Potassium iodide. ditives. 172.379 Vitamin D2. 172.380 Vitamin D3. Subpart B—Food Preservatives 172.385 Whole fish protein concentrate. 172.395 Xylitol. 172.105 Anoxomer. 172.399 Zinc methionine sulfate. 172.110 BHA. 172.115 BHT. Subpart E—Anticaking Agents 172.120 Calcium disodium EDTA. 172.410 Calcium silicate. 172.130 Dehydroacetic acid. 172.430 Iron ammonium citrate. 172.133 Dimethyl dicarbonate. 172.480 Silicon dioxide. 172.135 Disodium EDTA. 172.490 Yellow prussiate of soda. 172.140 Ethoxyquin. 172.145 Heptylparaben. Subpart F—Flavoring Agents and Related 172.150 4-Hydroxymethyl-2,6-di-tert-butyl- Substances phenol. 172.510 Natural flavoring substances and 172.155 Natamycin (pimaricin). natural substances used in conjunction 172.160 Potassium nitrate. -
Download Author Version (PDF)
Chemical Science Accepted Manuscript This is an Accepted Manuscript, which has been through the Royal Society of Chemistry peer review process and has been accepted for publication. Accepted Manuscripts are published online shortly after acceptance, before technical editing, formatting and proof reading. Using this free service, authors can make their results available to the community, in citable form, before we publish the edited article. We will replace this Accepted Manuscript with the edited and formatted Advance Article as soon as it is available. You can find more information about Accepted Manuscripts in the Information for Authors. Please note that technical editing may introduce minor changes to the text and/or graphics, which may alter content. The journal’s standard Terms & Conditions and the Ethical guidelines still apply. In no event shall the Royal Society of Chemistry be held responsible for any errors or omissions in this Accepted Manuscript or any consequences arising from the use of any information it contains. www.rsc.org/chemicalscience Page 1 of 5 Chemical Science Uptake of one and two molecules of CO2 by the molybdate dianion: a soluble, molecular oxide model system for carbon dioxide fixation†‡ Ioana Knopf,a Takashi Ono,a Manuel Temprado,b Daniel Tofan,a and Christopher C. Cummins ∗;a Received Xth XXXXXXXXXX 20XX, Accepted Xth XXXXXXXXX 20XX First published on the web Xth XXXXXXXXXX 200X DOI: 10.1039/b000000x 2− Tetrahedral [MoO4] readily binds CO2 at room tem- herein we report the finding that molybdate absorbs not just perature to produce a robust monocarbonate complex, one but two equivalents of CO2 (the second, reversibly) to- 2 2− [MoO3(k -CO3)] , that does not release CO2 even at gether with complete characterization including single-crystal modestly elevated temperatures (up to 56 ◦C in solution X-ray diffraction studies of the resulting mono- and dicarbon- and 70 ◦C in the solid state). -
Divergent Synthesis of Cyclopropane-Containing Fragments and Lead-Like Compounds for Drug Discovery
Divergent Synthesis of Cyclopropane-Containing Fragments and Lead-Like Compounds for Drug Discovery A Thesis submitted by Stephen John Chawner In partial fulfilment of the requirement for the degree of DOCTOR OF PHILOSOPHY Department of Chemistry Imperial College London South Kensington London SW7 2AZ United Kingdom 2017 1 I confirm that the work presented within this document is my own. Clear acknowledgement has been made when referring to the work of others, or where help has been received. The copyright of this thesis rests with the author and is made available under a Creative Commons Attribution Non-Commercial No Derivatives licence. Researchers are free to copy, distribute or transmit the thesis on the condition that they attribute it, that they do not use it for commercial purposes and that they do not alter, transform or build upon it. For any reuse or redistribution, researchers must make clear to others the licence terms of this work. 2 Acknowledgements Firstly, I would like to thank Imperial College London and Eli Lilly whose combined generosity through a CASE award made my PhD financially possible. I would like to thank my academic supervisor Dr James Bull for providing me with the opportunity to undertake a PhD in his group. I am grateful for the chemistry knowledge that he has shared, his encouragement to present at conferences and the freedom to follow new project ideas. In addition to funding, the CASE award provided me with the opportunity to collaborate with Dr Manuel Cases-Thomas at Erl Wood. Manuel was a constant source of enthusiasm throughout my PhD and has been a joy to work with. -
Exploring Consumer Response to Labeling a Processing Aid That Enhances Food Safety
PEER-REVIEWED ARTICLE Christine Bruhn1 and Yaohua Feng2 Food Protection Trends, Vol. 41, No. 3, p. 305–313 Copyright© 2021, International Association for Food Protection 1 Dept. of Food Science and Technology, 2900 100th Street, Suite 309, Des Moines, IA 50322-3855 University of California, Davis, CA 95616, USA 2Dept. of Food Science, Purdue University, West Lafayette, IN 47907, USA Exploring Consumer Response to Labeling a Processing Aid That Enhances Food Safety ABSTRACT the participants’ initial response to DMDC was negative, Dimethyl dicarbonate (DMDC) can be used to reduce most were willing to try DMDC-treated juice after they microbiological levels in juice. The United States does received information. Some responded that labeling was not require mandatory labeling of juice with DMDC. Food unnecessary, but others believed strongly that consumers processors who value transparency need to communicate had the right to be informed. A label statement and web their processing methods without raising concerns about link were recommended to address the knowledge gap. chemical use. This study used focus groups to identify consumer responses to and preferred communication INTRODUCTION approaches about the use of DMDC in juice. Orange Consumers value the flavor of fresh-squeezed juice. juice consumers who were the household’s primary food Whereas conventional thermal pasteurization enhances purchasers and were not employed in the food industry food safety, the process alters many sensory properties were recruited. Participants (N = 58) were asked of fruit juice valued by consumers (23). However, their sources of food safety information, responses to because unpasteurized fruit juice can be contaminated label statements, and preferences for communicating with pathogenic bacteria, it poses a food safety risk to about processing methods. -
WO 2013/096420 Al 27 June 2013 (27.06.2013) P O P C T
(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2013/096420 Al 27 June 2013 (27.06.2013) P O P C T (51) International Patent Classification: (72) Inventors; and A23L 1/236 (2006.01) (71) Applicants (for US only): PRAKASH, Indra [US/US]; 9750 Talisman Drive, Alpharetta, GA 30022 (US). (21) International Application Number: MARKOSYAN, Avetik [AM/MY]; A-5-8 Park Resid PCT/US2012/070562 ence, an 112h, Kuala Lumpur, 59200 (MY). (22) International Filing Date: CHATURVEDULLA, Venkata, Sai Prakash [IN/US]; 19 December 2012 (I 12.2012) 13300 Morris Road, Unit 107, Alpharetta, GA 30004 (US). CAMPBELL, Mary [US/US]; 5 171 Proctor Landing, Ac- (25) Filing Language: English worth, GA 30101 (US). SAN MIGUEL, Rafael [US/US]; (26) Publication Language: English 3277 Craggy Point, Se, Atlanta, GA 30339 (US). PURKAYASTHA, Siddhartha [US/US]; 615 Glenwood (30) Priority Data: Lane, Lombard, IL 60148 (US). JOHNSON, Marquita 61/577,202 19 December 201 1 (19. 12.201 1) US [US/US]; 10133 South Karlov Ave., Oak Lawn, IL 60453 61/65 1,099 24 May 2012 (24.05.2012) US (US). (71) Applicants (for all designated States except US): THE (74) Agents: KAUFMAN, Rebecca et al; King & Spalding, COCA-COLA COMPANY [US/US]; One Coca-Cola 1180 Peachtree Street, Atlanta, GA 30309 (US). Plaza, NW, Atlanta, GA 303 13 (US). PURECIRCLE SDN BHD [MY/MY]; PT 23419, Lengkuk Teknologi, (81) Designated States (unless otherwise indicated, for every Techpark @ ENSTEK, 71760 Bandar ENSTEK, Negeri kind of national protection available): AE, AG, AL, AM, Sembilan (MY). -
(+)-Belactosin A
Total Synthesis of (+)-Belactosin A A thesis submitted by James Nicholas Scutt in partial fulfilment of the requirements for the degree of Doctor of Philosophy TT MU r u * 1630444 Heilbron Laboratory Department of Chemistry Imperial College London London SW7 2AY January 2005 Contents Contents 2 Abstract 4 Acknowledgements 5 Abbreviations 6 Stereochemical notation 9 Chapter 1 - Introduction 10 1.1 Isolation and structure of (+)-belactosin A 11 1.2 Proteasome inhibition 12 1.2.1 Biological activity of (+)-belactosin A 12 1.3 Review of previous work 14 1.3.1 De Meijere's synthesis of(2S/R*, I'R, 2'5)-AcpAla 14 1.3.2 Synthesis of a related (isomeric) p-lactone 20 1.4 Recent synthetic work 22 1.4.1 De Meijere's synthesis of AcpAla (all isomers) 23 1.4.2 Vedaras' synthesis of (2S, 1 'R, 2'S)-AcpAla 25 1.4.3 De Meijere's total synthesis of (+)-belactosin A 26 Chapter 2 - Results and discussion 30 2.1 Project aims 31 2.1.1 Synthesis of trans-AcpAla isomers - overview of synthetic strategy 32 2.2 Boronic ester route 34 2.2.1 Introduction 34 2.2.2 Synthesis of cyclopropyl boronic esters 36 2.2.3 Amination of cyclopropyl boronic esters 39 2.3 Epoxide cyclopropanation route 43 2.3.1 Introduction 43 2.3.2. Stereoselectivity and stereospecificity 47 2.3.3 Wadsworth-Emmons aminocyclopropanation 49 2.3.4 Optimisation of Wadsworth-Emmons cyclopropanation 53 2.3.5 Increasing reactivity 59 2.3.6 Room temperature Wadsworth-Emmons cyclopropanation 62 2.3.7 Horner cyclopropanation 64 2.3.8 Asymmetric Wadsworth-Emmons cyclopropanation 65 2.4 Conversion of cyclopropyl -
Effectiveness of Higher Fatty Acids C , C and C , Dimethyl
ACTA UNIVERSITATIS AGRICULTURAE ET SILVICULTURAE MENDELIANAE BRUNENSIS Volume 62 3 Number 1, 2014 http://dx.doi.org/10.11118/actaun201462010023 EFFECTIVENESS OF HIGHER FATTY ACIDS C8, C10 AND C12, DIMETHYL DICARBONATE AND SULPHUR DIOXIDE FOR INHIBITION OF RE-FERMENTATION AND MALOLACTIC ACTIVITIES IN WINE Mojmír Baroň1 1 Department of Viticulture and Oenology, Faculty of Horticulture, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic Abstract BAROŇ MOJMÍR. 2014. Eff ectiveness of Higher Fatty Acids C8, C10 and C12, Dimethyl Dicarbonate and Sulphur Dioxide for Inhibition of Re-fermentation and Malolactic Activities in Wine. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 62(1): 23–29. The issue of preventing the re-fermentation and protection against undesirable malolactic fermentation (MLF) in order to safe content of acids in wine is very complicated. In this paper the saturated higher fatty acids (HFA) – C8, C10 and C12, dimethyldicarbonate (DMDC) and sulphur dioxide (SO2) were tested. The re-fermentation test showed the strongest inhibition power at ratio 2:8, 1:9 and 0:10 as C8:C10 acids – 65 days without re-fermentation. MLF experiments confi rmed that addition of SO2 into the fermenting media causes rapid inhibition of lactic acid bacteria metabolic activity. Malic acid concentrations were proportionally decreasing during 6 days of experiment and at the end the content of this acid varied between 0.16 and 0.22 g/L, the only exception formed a variant with the addition of SO2 (1.57 g/L of malic acid). A er calculation of the average consumption rate of malic acid, the results showed the inhibition power – SO2 (81.05%) followed by variant of 40 mg/L mixture of HFA (40.76%), a variant of 200 mg/L of DMDC (31.98%) and a variant of 20 mg/L mixture of HFA (12.59%). -
OARDC HCS 0611.Pdf
This page intentionally blank. PREFACE Approximately 150 persons attended the 1990 Ohio Grape-Wine Short Course, which was held at the Worthington Holiday Inn in Columbus on February 18-20. Those attending were from 9 states, not including Ohio, and represented many areas of the grape and wine industry. This course was sponsored by the Department of Horticulture, The Ohio State University, Ohio Agricultural Research and Development Center, Ohio Cooperative Extension Service, Ohio Wine Producers Association and Ohio Grape Industries Committee. All publications of the Ohio Agricultural Research and Development Center are available to all potential clientele on a nondiscriminatory basis without regard to race, color, creed, religion, sexual orientation, national origin, sex, age, handicap, or Vietnam-era veteran status. 8/90-600 This page intentionally blank. TABLE OF CONTENTS Page Surveying Winery Visitors to Increase Sales 1 by Larry Lockshin Base Wine Making and Champagne Production ......................... 9 by David Munksgard Fungicides for Control of Grape Diseases in Northeastern United ... 16 States (1990), by Michael A. Ellis Monoterpenes and Their Relationship to Wine Quality ............... 23 by Jeff David Ackerson A New Sterilant for Treating Wines: Dimethyl Dicarbonate .......... 29 by Mary Calisto Hedging Effects on White Riesling ................................. 37 by Tony Wolf Effective Use of Fining Agents .................................... 41 by Michele Dittamo Effects of Selective Leaf Pulling With Chardonnay and ............. 44 White Riesling, by Tony Wolf Flawed Seyval Wines: Ways to Prevent Problems ..................... 48 by James F. Gallander Biology and Behavior of the Rose Chafer Macrodacty7us ............ 51 subspinosus (F.), by Murdick J. Mcleod and Roger N. Williams Measurement and Removal of Tartaric Acid in Concord Grape Juice . -
The Generation and Reactivity of Functionalised Organozinc Carbenoids for Cyclopropane Synthesis
The Generation and Reactivity of Functionalised Organozinc Carbenoids for Cyclopropane Synthesis A Thesis Presented by Laure Jerome In Partial Fulfilment of the Requirements for the Award of the Degree of DOCTOR OF PHILOSOPHY OF THE UNIVERSITY COLLEGE LONDON Christopher Ingold Laboratories Department of Chemistry University of London London WC1H 0AJ May 2009 1 Declaration Declaration I, Laure Jerome, confirm that the work presented in this thesis is, to the best of my knowledge, my own. Where information has been derived from other sources, I confirm that this has been indicated in the thesis. 2 Abstract Abstract This thesis describes the generation and reactivity of functionalised organozinc carbenoids for cyclopropane synthesis with alkenes. In the introductory chapter, a brief overview of the different methods for preparation of heteroatom-functionalised cyclopropanes is presented, including [2+1] cycloaddition reactions using a carbene or carbenoid as a cyclopropanating agent with an alkene, ionic stepwise methods, and chemical modifications from existing cyclopropanes. The remainder of this chapter then focuses on previous work within our own group in this area. The second chapter presents the results obtained from different areas of research in the present study, the first of these being a deeper understanding and extension of the research work undertaken by my predecessor for the development of the cyclopropanation reaction using an “amidoorganozinc” carbenoid derived from N,N diethoxymethyloxazolidinones derivatives in the presence of a source of zinc and chlorotrimethylsilane. Thus, the chemoselectivity and stereoselectivtity of the reaction were fully studied, and a quadrant model was constructed to rationalise the stereochemistry of the products obtained. -
EVALUATION of COMMON and NOVEL SANITIZERS AGAINST SPOILAGE YEASTS FOUND in WINE ENVIRONMENTS a Dissertation Presented to The
EVALUATION OF COMMON AND NOVEL SANITIZERS AGAINST SPOILAGE YEASTS FOUND IN WINE ENVIRONMENTS A Dissertation Presented to the Faculty of the Graduate School of Cornell University In Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy by Maria de Lourdes Alejandra Aguilar Solis January 2014 © 2014 Maria de Lourdes Alejandra Aguilar Solis EVALUATION OF COMMON AND NOVEL SANITIZERS AGAINST SPOILAGE YEASTS FOUND IN WINE ENVIRONMENTS Maria de Lourdes Alejandra Aguilar Solis, Ph. D. Cornell University 2014 Wine is subjected to many sources of microbial contamination throughout the wine making process, including but not limited to fermentation, barrel maturation, bottling, etc. In wineries, sanitation protocols should consider not only the type of microorganisms that need to be challenged, but also the type of surface that is going to be sanitized, since contact surfaces need to be treated differently according to physical and chemical properties. In the past, chlorinated compounds were used as sanitizers in wine industry, however we now know that they can be involved in the formation of trichloroanisoles (TCA), resulting in wine defects. Chlorine dioxide unlike other chlorinated compounds does not form TCA, or at least at very low levels. However, this research concluded its poor efficacy to sanitize wine barrels, likely due to the organic nature of the barrels. Alternative sanitizers in wine industry also include: sulfur dioxide, peroxyacetic acid, hot water, steam, ozone, etc. On the other hand, Velcorin ® (Dimethyl dicarbonate or DMDC) is currently used as a wine sterilant, however, due to its high disinfection effectiveness against yeast, we investigated its potential as a sanitizer for wine contact surfaces. -
Safety Data Sheet: Di-Tert-Butyl Dicarbonate
safety data sheet according to Regulation (EC) No. 1907/2006 (REACH), amended by 2015/830/EU Di-tert-butyl dicarbonate ≥98 % article number: 6985 date of compilation: 03.11.2016 Version: 1.0 en SECTION 1: Identification of the substance/mixture and of the company/undertaking 1.1 Product identifier Identification of the substance Di-tert-butyl dicarbonate Article number 6985 Registration number (REACH) This information is not available. EC number 246-240-1 CAS number 24424-99-5 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses: laboratory chemical 1.3 Details of the supplier of the safety data sheet Carl Roth GmbH + Co KG Schoemperlenstr. 3-5 D-76185 Karlsruhe Germany Telephone: +49 (0) 721 - 56 06 0 Telefax: +49 (0) 721 - 56 06 149 e-mail: [email protected] Website: www.carlroth.de Competent person responsible for the safety data : Department Health, Safety and Environment sheet e-mail (competent person) : [email protected] 1.4 Emergency telephone number Emergency information service Poison Centre Munich: +49/(0)89 19240 SECTION 2: Hazards identification 2.1 Classification of the substance or mixture Classification according to Regulation (EC) No 1272/2008 (CLP) Classification acc. to GHS Section Hazard class Hazard class and cat- Hazard egory state- ment 2.6 flammable liquid (Flam. Liq. 3) H226 3.1I acute toxicity (inhal.) (Acute Tox. 1) H330 3.2 skin corrosion/irritation (Skin Irrit. 2) H315 3.3 serious eye damage/eye irritation (Eye Irrit. 2) H319 3.4S skin sensitisation (Skin Sens. 1A) H317 Malta (en) Page 1 / 13 safety data sheet according to Regulation (EC) No. -
Molecular Imagegguided Theranostic and Personali<Ed Medicine
Journal of Biomedicine and Biotechnology 1.'%7.#4 /#)'g 7+&'&*'4#0156+% #0&'4510#.+<'&'&+%+0' Guest Editors: David J. Yang, Hong Zhang, Mei Tian, Carrio Ignasi, Zhen Cheng, and Lie-Hang Shen Molecular Image-Guided Theranostic and Personalized Medicine Journal of Biomedicine and Biotechnology Molecular Image-Guided Theranostic and Personalized Medicine Guest Editors: David J. Yang, Hong Zhang, Mei Tian, Carrio Ignasi, Zhen Cheng, and Lie-Hang Shen Copyright © 2011 Hindawi Publishing Corporation. All rights reserved. This is a special issue published in volume 2011 of “Journal of Biomedicine and Biotechnology.” All articles are open access articles distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Editorial Board The editorial board of the journal is organized into sections that correspond to the subject areas covered by the journal. Agricultural Biotechnology Guihua H. Bai, USA Hari B. Krishnan, USA B. C. Saha, USA Christopher P. Chanway, Canada Carol A. Mallory-Smith, USA Mariam B. Sticklen, USA Ravindra N. Chibbar, Canada Dennis P. Murr, Canada Chiu-Chung Young, Taiwan Ian Godwin, Australia Rodomiro Ortiz, Mexico Animal Biotechnology E. S. Chang, USA Thomas A. Hoagland, USA Lawrence Reynolds, USA Hans H. Cheng, USA Tosso Leeb, Switzerland Lawrence B. Schook, USA Bhanu P. Chowdhary, USA James D. Murray, USA Mari A. Smits, The Netherlands Noelle E. Cockett, USA Anita M. Oberbauer, USA Leon Spicer, USA Peter Dovc, Slovenia Jorge A. Piedrahita, USA J. Verstegen, USA Scott C. Fahrenkrug, USA Daniel Pomp, USA Matthew B. Wheeler, USA Dorian J. Garrick, USA Kent M.