Food and Agricultural Import Regulations and Standards
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(+)-Catechin and Quercetin from Pawpaw Pulp A
Characterization of (+)-Catechin and Quercetin from Pawpaw Pulp A thesis presented to the faculty of the College of Health Sciences and Professions of Ohio University In partial fulfillment of the requirements for the degree Master of Science Jinsoo Ahn June 2011 © 2011 Jinsoo Ahn. All Rights Reserved. 2 This thesis titled Characterization of (+)-Catechin and Quercetin from Pawpaw Pulp by JINSOO AHN has been approved for the School of Applied Health Sciences and Wellness and the College of Health Sciences and Professions by Robert G. Brannan Assistant Professor of Applied Health Sciences and Wellness Randy Leite Interim Dean, College of Health Sciences and Professions 3 ABSTRACT AHN, JINSOO, M.S., June 2011, Human and Consumer Sciences, Food and Nutrition Characterization of (+)-Catechin and Quercetin from Pawpaw Pulp Director of Thesis: Robert G. Brannan This thesis investigates the concentration of total phenolics and total flavonoids in pulp extracts of pawpaw harvested in 2008, 2009, and 2010, and the concentration of (+)- catechin and quercetin flavonoids in 2010 pawpaw pulp extracts using high performance liquid chromatography (HPLC). Next, influence of frozen storage and air or vacuum packaging of pawpaw pulp on the concentration of (+)-catechin and quercetin flavonoids was examined. In addition, properties of pawpaw pulp such as moisture content, lipid content, percent sugar, color, and pH were measured. Total phenolics were determined using the Folin-Ciocalteu assay and reported as µmol gallic acid equivalent (GAE)/ g wet tissue. The concentration was observed in the order of 2009 sample (3.91 ± 1.61) < 2008 sample (11.19 ± 0.57) < 2010 sample (14.11 ± 1.90). -
Analysis of the Most Appropriate Risk Management Option (Rmoa) ______
ANALYSIS OF THE MOST APPROPRIATE RISK MANAGEMENT OPTION (RMOA) _________________________________________________________________ Analysis of the most appropriate risk management option (RMOA) Substance Name: 2,6-di-tert-butyl-p-cresol EC Number: 204-881-4 CAS Number: 128-37-0 Authority: France Date: March 2016 Cover Note 2,6-di-tert-butyl-p-cresol (butylated hydroxytoluene (BHT)) belongs to the broad group of alkyl phenols and as alkyl phenol ethoxylates BHT is on the Danish EPA “List of Undesirable Substances” latest updated in 2009. The group was recently reviewed in a report: “Survey of alkyl phenols and alkyl phenol ethoxylates (Danish EPA 2012). The group includes substances that are hazardous to the environment and substances that have or may have endocrine disrupting effects. The substance is also listed in the Danish inventory of carcinogenic substances. BHT is included in the framework on the French national Strategy on Endocrine Disruptors (Stratégie Nationale sur les Perturbateurs Endocriniens or SNPE) in 2015. ANSES was commissioned by the French Competent Authority (Ministry of Ecology, Sustainable Development and Energy) and identified BHT as a good candidate for working further on its ED properties. Consequently, France initiated a RMOA on BHT, mainly focused on the ED properties of this substance. EC no 204-881-4 Anses (on behalf FR-MSCA) Page 1 sur 48 ANALYSIS OF THE MOST APPROPRIATE RISK MANAGEMENT OPTION (RMOA) _________________________________________________________________ Indeed, alerts on BHT come from different sources. BHT shares common uses with BHA, that was analysed within the framework of SNPE in 2014 and which has been identified numerous times as a potential endocrine disruptors: European Commission on Endocrine Disruption (EDC Database): Listed BHA as a Category 1 priority substance, based on evidence that it interferes with hormone function. -
Molecular Docking Study on Several Benzoic Acid Derivatives Against SARS-Cov-2
molecules Article Molecular Docking Study on Several Benzoic Acid Derivatives against SARS-CoV-2 Amalia Stefaniu *, Lucia Pirvu * , Bujor Albu and Lucia Pintilie National Institute for Chemical-Pharmaceutical Research and Development, 112 Vitan Av., 031299 Bucharest, Romania; [email protected] (B.A.); [email protected] (L.P.) * Correspondence: [email protected] (A.S.); [email protected] (L.P.) Academic Editors: Giovanni Ribaudo and Laura Orian Received: 15 November 2020; Accepted: 1 December 2020; Published: 10 December 2020 Abstract: Several derivatives of benzoic acid and semisynthetic alkyl gallates were investigated by an in silico approach to evaluate their potential antiviral activity against SARS-CoV-2 main protease. Molecular docking studies were used to predict their binding affinity and interactions with amino acids residues from the active binding site of SARS-CoV-2 main protease, compared to boceprevir. Deep structural insights and quantum chemical reactivity analysis according to Koopmans’ theorem, as a result of density functional theory (DFT) computations, are reported. Additionally, drug-likeness assessment in terms of Lipinski’s and Weber’s rules for pharmaceutical candidates, is provided. The outcomes of docking and key molecular descriptors and properties were forward analyzed by the statistical approach of principal component analysis (PCA) to identify the degree of their correlation. The obtained results suggest two promising candidates for future drug development to fight against the coronavirus infection. Keywords: SARS-CoV-2; benzoic acid derivatives; gallic acid; molecular docking; reactivity parameters 1. Introduction Severe acute respiratory syndrome coronavirus 2 is an international health matter. Previously unheard research efforts to discover specific treatments are in progress worldwide. -
Propyl Gallate
PROPYL GALLATE Prepared at the 46th JECFA (1996), published in FNP 52 Add 4 (1996) superseding specifications prepared at the 41st JECFA (1993), published in FNP 52 Add 2 (1993). Metals and arsenic specifications revised at the 61st JECFA (2003). An ADI of 0-1.4 mg/kg bw was established at the 46th JECFA (1996) SYNONYMS INS No. 310 DEFINITION Chemical names Propyl gallate, propyl ester of gallic acid, n-propyl ester of 3,4,5- trihydroxybenzoic acid, propyl 3,4,5-trihydroxybenzoate C.A.S. number 121-79-9 Chemical formula C10H12O5 Structural formula Formula weight 212.20 Assay Not less than 98.0% and not more than 102.0% on the dried basis DESCRIPTION White or creamy-white, crystalline odourless solid FUNCTIONAL USES Antioxidant CHARACTERISTICS IDENTIFICATION Solubility (Vol. 4) Slightly soluble in water; freely soluble in ethanol, ether and propane-1,2- diol Melting range (Vol. 4) 146 - 150o after drying Gallic acid Dissolve about 0.5 g of the sample in 10 ml of sodium hydroxide TS and boil for 30 min under nitrogen. Maintaining a stream of nitrogen, cool the mixture and acidify to pH 2-3 with sulfuric acid TS. Filter the precipitate through a sintered glass crucible, wash with a minimum amount of water and then dry at 110ºfor 2 h. The melting point of the gallic acid so obtained is about 240º, with decomposition. TLC-separation of gallate Use a thin-layer plate prepared with silica gel G. Prepare a sample solution esters by dissolving 10 mg of sample in 10 ml ethanol. -
Recent Advances in the Application of Capillary Electromigration Methods For
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Digital.CSIC Recent advances in the application of capillary electromigration methods for food analysis Virginia García-Cañas, Alejandro Cifuentes Department of Food Analysis, Institute of Industrial Fermentations (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain Running title: Food analysis by CE Corresponding author: Alejandro Cifuentes, e-mail: [email protected]; Fax# 34-91- 5644853; Phone# 34-91-5618806 (ext. 315) Abbreviations: AD, amperometric detection; ASP, amnesic shellfish poisoning; BC, bacitracin; BGE, background electrolyte; BHA, butylated hydroxyanisole; BHT, butylated hydroxytoluene; CCD, charge-coupled device; C4D, coupled contactless conductivity detection; CD, conductivity detection; CytC, cytochrome C; DA, domoic acid ; DAD, diode array detection; DMA-EpyM, N,N-dimethylacrylamide-ethylpyrrolidine methacrylate; DNS, dansyl chloride; ED, electrochemical detection; FASI, field amplified samples injection; FITC, fluorescein isothiocianate; GMO, genetically modified organism; HEC, hydroxyethylcelullose; LED, light-emitting diode; LPA, ligation-dependent probe amplification; MEEKC, microemulsion electrokinetic chromatography; MRLs, maximum residue limits; OA, ochratoxin A; PAD, pulsed amperometric detection; PCR-RFLP, PCR based restriction fragment length polymorphism; PFSG, programmed field strength gradients; PG, propyl 1 gallate; PMMA, poly(methyl methacrylate); QIT, quadrupole ion trap; SERRS, surface- enhanced resonance raman -
YMC HPLC Columns Applications Notebook
WA30000 HPLC Columns Applications Notebook Table of Contents Click on the items below to go directly to that section of the notebook. To Start a new search, click on Table of Contents Bookmark to the left YMC™ HPLC Column Quality Assurance............................................................2 Guide to YMC™ Part Numbering System ...........................................................3 YMC™ Column Selection Guide ....................................................................4-7 HPLC Troubleshooting and Reference Guide..................................................8-14 List of Applications..................................................................................15-20 1. Vitamins .....................................................................................21 2. Carbohydrates ............................................................................32 3. Nucleic Acids .............................................................................43 4. Amino Acids, Peptides, Proteins......................................................48 5. Organic Acids, Fatty Acid Derivatives .............................................60 6. Food Additives ............................................................................62 7. Natural Products ..........................................................................68 8. Steroids......................................................................................77 9. Drugs, Metabolites .......................................................................87 -
Endocrine Disruption by Mixtures in Topical Consumer Products
cosmetics Review Endocrine Disruption by Mixtures in Topical Consumer Products Emiliano Ripamonti *, Elena Allifranchini, Stefano Todeschi and Elena Bocchietto Abich Laboratories, 28924 Verbania, Italy; [email protected] (E.A.); [email protected] (S.T.); [email protected] (E.B.) * Correspondence: [email protected]; Tel.: +39-(0)323-586239 Received: 20 September 2018; Accepted: 12 October 2018; Published: 16 October 2018 Abstract: Endocrine disruption has been gathering increasing attention in the past 25 years as a possible new threat for health and safety. Exposure to endocrine disruptor has been progressively linked with a growing number of increasing disease in the human population. The mechanics through which endocrine disruptors act are not yet completely clear, however a number of pathways have been identified. A key concern is the cumulative and synergic effects that endocrine disruptors could have when mixed in consumer products. We reviewed the available literature to identify known or potential endocrine disruptors, as well as endocrine active substances that could contribute to cumulative effects, in topical consumer products. The number of endocrine actives used daily in consumer products is staggering and even though most if not all are used in concentrations that are considered to be safe, we believe that the possibility of combined effects in mixtures and non-monotonic dose/response is enough to require further precautions. A combined in vitro approach based on existing, validated OECD test methods is suggested to screen consumer products and mixtures for potential interaction with estrogen and androgen hormone receptors, in order to identify products that could have cumulative effects or support their safety concerning direct endocrine disruption capabilities. -
Materials Free of Endocrine Disruptive Activity
(19) & (11) EP 2 316 877 A2 (12) EUROPEAN PATENT APPLICATION (43) Date of publication: (51) Int Cl.: 04.05.2011 Bulletin 2011/18 C08K 5/00 (2006.01) (21) Application number: 10188754.5 (22) Date of filing: 07.09.2007 (84) Designated Contracting States: (72) Inventor: Bittner, George AT BE BG CH CY CZ DE DK EE ES FI FR GB GR Austin, TX 78730 (US) HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR (74) Representative: Carpmaels & Ransford One Southampton Row (30) Priority: 08.09.2006 US 825021 P London WC1B 5HA (GB) (62) Document number(s) of the earlier application(s) in accordance with Art. 76 EPC: Remarks: 07253537.0 / 1 897 907 •Claims filed after the date of filing of the application/ after the date of receipt of the divisional application (71) Applicant: Bittner, George (Rule 68(4) EPC). Austin, TX 78730 (US) •This application was filed on 25-10-2010 as a divisional application to the application mentioned under INID code 62. (54) Materials free of endocrine disruptive activity (57) The present invention describes chemicals that is particularly disadvantageous, such as baby bottles, have certain properties which cause them to be free or baby toys, food containers, medical containers, animal substantially free from endocrine disruptive activity. As cages and medical products. The chemicals may also be a result, the chemicals are useful in producing plastic useful as food additives which are used in food products materials that may be used in products which are ex- that are ingested by individuals in which endocrine dis- posed to individuals in which endocrine disruptive activity ruptive activity is particularly disadvantageous, such as newborns or the physically infirm. -
Investigating Color Additive Molecules for Pharmaceutical and Cosmetic
Rowan University Rowan Digital Works Theses and Dissertations 6-17-2019 Investigating color additive molecules for pharmaceutical and cosmetic applications: A comparison of theoretical and experimental UV-visible absorbance spectra in tunable solvents Jacqueline Casey Mohen Rowan University Follow this and additional works at: https://rdw.rowan.edu/etd Part of the Medicinal-Pharmaceutical Chemistry Commons Recommended Citation Mohen, Jacqueline Casey, "Investigating color additive molecules for pharmaceutical and cosmetic applications: A comparison of theoretical and experimental UV-visible absorbance spectra in tunable solvents" (2019). Theses and Dissertations. 2690. https://rdw.rowan.edu/etd/2690 This Thesis is brought to you for free and open access by Rowan Digital Works. It has been accepted for inclusion in Theses and Dissertations by an authorized administrator of Rowan Digital Works. For more information, please contact [email protected]. INVESTIGATING COLOR ADDITIVE MOLECULES FOR PHARMACEUTICAL AND COSMETIC APPLICATIONS: A COMPARISON OF THEORETICAL AND EXPERIMENTAL UV-VISIBLE ABSORBANCE SPECTRA IN TUNABLE SOLVENTS by Jacqueline C. Mohen A Thesis Submitted to the Department of Chemistry & Biochemistry College of Science and Mathematics In partial fulfillment of the requirement For the degree of Master of Science in Pharmaceutical Sciences at Rowan University May 9, 2019 Thesis Chair: Timothy D. Vaden, Ph.D. © 2019 Jacqueline C. Mohen Dedications To Christine and Timothy, for having faith in me against all odds, and the divine patience to wait for a phenomenal outcome. iii iv Acknowledgment Special thanks to Nathalie Nicole Malinao, who went above and beyond to help me save this manuscript file from being compromised by an aggressive hacking attempt. -
57518 Federal Register / Vol. 61, No. 216 / Wednesday, November 6, 1996 / Rules and Regulations
57518 Federal Register / Vol. 61, No. 216 / Wednesday, November 6, 1996 / Rules and Regulations ENVIRONMENTAL PROTECTION implement certain pollution prevention, (BPT), §§ 455.43 and 455.63 (BCT), and AGENCY recycle and reuse practices. Facilities §§ 455.44 and 455.64 (BAT) are choosing and implementing the established in the National Pollutant 40 CFR Part 455 pollution prevention alternative will Discharge Elimination System (NPDES) receive a discharge allowance. permits. [FRL±5630±9] The final rule will benefit the ADDRESSES: For additional technical RIN 2040±AC21 environment by removing toxic information write to Ms. Shari H. pollutants (pesticide active ingredients Zuskin, Engineering & Analysis Division Pesticide Chemicals Category, and priority pollutants) from water (4303), U.S. EPA, 401 M Street SW, Formulating, Packaging and discharges that have adverse effects on Washington, D.C. 20460 or send e-mail Repackaging Effluent Limitations human health and aquatic life. EPA has to: [email protected] or call Guidelines, Pretreatment Standards, estimated the compliance costs and at (202) 260±7130. For additional and New Source Performance economic impacts expected to result economic information contact Dr. Lynne Standards from the Zero Discharge/Pollution Tudor at the address above or by calling Prevention Alternative (i.e., Zero/P2 AGENCY: Environmental Protection (202) 260±5834. Agency. Alternative). The Agency has determined that the Zero/P2 Alternative The complete record (excluding ACTION: Final rule. will result in a similar removal of toxic confidential business information) for this rulemaking is available for review SUMMARY: This final regulation limits pound equivalents per year at EPA's Water Docket; 401 M Street, the discharge of pollutants into (approximately 7.6 million toxic pound SW, Washington, DC 20460. -
SCIENTIFIC LITERATURE REVIEW Propyl Gallate July 8, 2004
SCIENTIFIC LITERATURE REVIEW Propyl Gallate July 8, 2004 All interested persons are provided 90 days from the above date to comment on this Scientific Literature Review and to identify additional published data that should be included or provide unpublished data which can be made public and included. Information may be submitted without identifying the source or the trade name of the cosmetic product containing the ingredient. All unpublished data submitted to CIR will be discussed in open meetings, will be available at the CIR office for review by any interested party and may be cited in a peer-reviewed scientific journal. Please submit data, comments, or requests to the CIR Director, Dr. F. Alan Andersen. Co s m e t i c I n g r e d i e n t R e v i e w 1101 17th Street, NW, Suite 310 " Washington, DC 20036-4702 " (202) 331-0651 " [email protected] Copyright 2004 Cosmetic Ingredient Review 1101 17th Street, NW, Suite 310 Washington, DC 20036 TABLE OF CONTENTS INTRODUCTION .................................................................... 1 CHEMISTRY ....................................................................... 1 DEFINITION AND STRUCTURE ................................................. 1 CHEMICAL AND PHYSICAL PROPERTIES ........................................ 2 METHOD OF MANUFACTURE .................................................. 2 ANALYTICAL METHODS ....................................................... 2 REACTIVITY ................................................................. 3 USE ............................................................................. -
Quantitative Determination of Isoflavones by HPLC-UV Method and Antioxidant Activity of Trifolium Longidentatum
Turk J Pharm Sci 11(2), 185-194, 2014 Original article Quantitative Determination of Isoflavones by HPLC-UV Method and Antioxidant Activity of Trifolium longidentatum Nurgiin KUCÜKBOYACI' , Özlem ILGINER , Hilal TORUL , Uğur TAMER , Nezaket ADIGÜZEL3, Ban? BANİ4, Ay§egül KÖROĞLU5 1 Gazi University, Faculty of Pharmacy, Department of Pharmacognosy, 06330 Ankara, TURKEY, 2Gazi University, Faculty of Pharmacy, Department of Analytical Chemistry, 06330 Ankara, TURKEY, Gazi University, Faculty of Science, Department of Biology, 06500 Ankara, TURKEY, 4Kastamonu University, Faculty of Arts and Science, Department of Biology, 37200 Kastamonu, TURKEY,5Ankara University, Faculty of Pharmacy, Department of Pharmaceutical Botany, 06100 Ankara, TURKEY In this study, aerial parts of Trifolium longidentatum Nábĕlek (Fabaceae) were quantitatively analyzed for their content of four isoflavones, daidzein (D), genistein (G), formononetin (F) and biochanin A (B), by the use of developed RP-HPLC-UV method. The chromatographic separation was performed using a gradient system with a mobile phase of methanol, acetate buffer (pH=4.75) and acetonitrile with on the reversed phase column, Agilent Eclipse XDB-18 (15 cm x 4.6 mm i.d.). The contents of D, G, F and B in the aerial parts of T. longidentatum were determined as 0.0095, 0.0056, 0.0021 and 0.0073 %, respectively. Antioxidant potential of the methanol extract prepared from the aerial parts of the plant was also investigated with different in vitro methods, namely DPPH radical scavenging activity, lipid peroxidation inhibition and trolox equivalent antioxidant capacity assays. As a consequence, it was observed that the methanol extract of T. longidentatum had in vitro antioxidant activities in these methods.