Food Safety I
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Patulin – a Contaminant of Food and Feed: a Review
Acta fytotechn zootechn, 19, 2016(2): 64–67 http://www.acta.fapz.uniag.sk Review Patulin – a contaminant of food and feed: A review Katarína Zbyňovská*, Peter Petruška, Anna Kalafová, Marcela Capcarová Slovak University of Agriculture in Nitra, Slovak Republic Article Details: Received: 2016-07-28 | Accepted: 2016-02-18 | Available online: 2016-05-31 dx.doi.org/10.15414/afz.2016.19.02.64–67 Contamination of food and agricultural commodities by various types of toxigenic molds (microscopic filamentous fungi) is a serious and widely neglected problem. Poor harvesting practices, improper drying, handling, packaging, storage and transport conditions contribute to fungal growth and increase the risk of mycotoxin production. Patulin is a toxic chemical contaminant produced by several species of microscopic filamentous fungi. It is the most common mycotoxin found in apples, apricots, grapes, grape fruit, peaches, pears, olives and cereals. Patulin has been reported to be a genotoxic, reprotoxic, embryotoxic, and immunosuppressive compound. Further research needs to be focused on the generation of data dealing with epidemiological and toxicity effects, especially in humans. Keywords: mycotoxin, patulin, toxicity 1 Mycotoxin patulin and as an ointment for treating fungal skin infections Mycotoxins are low-molecular-weight toxic chemical (Chalmers et al., 2004; Ciegler, 1977). However, during the compounds with low volatility, representing secondary 1950s and 1960s, it became apparent that, in addition metabolites produced by certain filamentous fungi to its antibacterial, antiviral, and antiprotozoal activity, that colonize crops, in the field or post-harvest, capable patulin was toxic to both plants and animals, precluding of causing disease and death in humans and animals its clinical use as an antibiotic. -
Enhanced Representation of Natural Product Metabolism in Uniprotkb
H OH metabolites OH Article Diverse Taxonomies for Diverse Chemistries: Enhanced Representation of Natural Product Metabolism in UniProtKB Marc Feuermann 1,* , Emmanuel Boutet 1,* , Anne Morgat 1 , Kristian B. Axelsen 1, Parit Bansal 1, Jerven Bolleman 1 , Edouard de Castro 1, Elisabeth Coudert 1, Elisabeth Gasteiger 1,Sébastien Géhant 1, Damien Lieberherr 1, Thierry Lombardot 1,†, Teresa B. Neto 1, Ivo Pedruzzi 1, Sylvain Poux 1, Monica Pozzato 1, Nicole Redaschi 1 , Alan Bridge 1 and on behalf of the UniProt Consortium 1,2,3,4,‡ 1 Swiss-Prot Group, SIB Swiss Institute of Bioinformatics, CMU, 1 Michel-Servet, CH-1211 Geneva 4, Switzerland; [email protected] (A.M.); [email protected] (K.B.A.); [email protected] (P.B.); [email protected] (J.B.); [email protected] (E.d.C.); [email protected] (E.C.); [email protected] (E.G.); [email protected] (S.G.); [email protected] (D.L.); [email protected] (T.L.); [email protected] (T.B.N.); [email protected] (I.P.); [email protected] (S.P.); [email protected] (M.P.); [email protected] (N.R.); [email protected] (A.B.); [email protected] (U.C.) 2 European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SD, UK 3 Protein Information Resource, University of Delaware, 15 Innovation Way, Suite 205, Newark, DE 19711, USA 4 Protein Information Resource, Georgetown University Medical Center, 3300 Whitehaven Street NorthWest, Suite 1200, Washington, DC 20007, USA * Correspondence: [email protected] (M.F.); [email protected] (E.B.); Tel.: +41-22-379-58-75 (M.F.); +41-22-379-49-10 (E.B.) † Current address: Centre Informatique, Division Calcul et Soutien à la Recherche, University of Lausanne, CH-1015 Lausanne, Switzerland. -
New Markers in the Mycotox Profile
New Markers in the MycoTOX Profile We are happy to announce the addition of four new mycotoxin markers to our MycoTOX Profile. The test now includes 11 mycotoxins from 40 species of mold, making it by far the most comprehensive and competitively priced mycotoxin test available. It also still more sensitive and accurate than other tests available, because we use LC/MS/MS technology. Here is an overview of the four new mycotoxin markers: Gliotoxin Gliotoxin (GTX) is produced by the mold genus Aspergillus. Aspergillus spreads in the environment by releasing conidia which are capable of infiltrating the small alveolar airways of individuals. In order to evade the body’s defenses Aspergillus releases Gliotoxin to inhibit the immune system. One of the targets of Gliotoxin is PtdIns (3,4,5) P3. This results in the downregulation of phagocytic immune defense, which can lead to the exacerbation of polymicrobial infections. Gliotoxin impairs the activation of T-cells and induces apoptosis in monocytes and in monocyte-derived dendritic cells. These impairments can lead to multiple neurological syndromes. Mycophenolic Acid Mycophenolic Acid (MPA) produced by the Penicillium fungus. MPA is an immunosuppressant which inhibits the proliferation of B and T lymphocytes. MPA exposure can increase the risk of opportunistic infections such as Clostridia and Candida. MPA is associated with miscarriage and congenital malformations when the woman is exposed in pregnancy. Dihydrocitrinone Dihydrocitrinone is a metabolite of Citrinin (CTN), which is a mycotoxin that is produced by the mold species Aspergillus, Penicillium, and Monascus. CTN exposure can lead to nephropathy, because of its ability to increase permeability of mitochondrial membranes in the kidneys. -
Comprehensive Review of Patulin Control and Analysis in Foods
COMPREHENSIVE REVIEW OF PATULIN CONTROL AND ANALYSIS IN FOODS A Project Paper Presented to the Faculty of the Graduate School of Cornell University in Partial Fulfillment of the Requirements for the Degree of Master of Professional Studies in Agriculture and Life Sciences Field of Food Science and Technology by Ana Cristina Barsallo Cochez May 2018 © 2018 Ana Cristina Barsallo Cochez ii ABSTRACT Patulin is a mycotoxin produced by a number of fungal species that include Penicillium, Aspergillus, and Byssochlamys genera. Several adverse health effects have been attributed to patulin—it is suspected of being clastogenic, mutagenic, teratogenic, and in higher concentrations cytotoxic, hence the importance of prevention, timely detection, and mitigation of contamination by this toxic fungal metabolite. The primary dietary origin of patulin is apples and its products, with the occasional contamination of other fruits, vegetables, and products thereof. The persistence and stability of the molecule allow it to survive processing, poses a major issue for the safety of susceptible foods. This challenge calls for techniques that will allow us to properly identify and eliminate the metabolite from food products. This paper reviews prior research on patulin focusing on detection, control, and level-reduction methods of patulin in several stages of production of these products. iii BIOGRAPHICAL SKETCH Ana Cristina Barsallo Cochez is pursuing a Master of Professional Studies in Food Science and Technology, immediately after the completion of her Doctorate of Veterinary Medicine from the University of Panama. Her interest in food safety grew while in vet school from bromatology courses, as well as an internship in the Food Safety Authority of Panama on her senior year. -
Suspect and Target Screening of Natural Toxins in the Ter River Catchment Area in NE Spain and Prioritisation by Their Toxicity
toxins Article Suspect and Target Screening of Natural Toxins in the Ter River Catchment Area in NE Spain and Prioritisation by Their Toxicity Massimo Picardo 1 , Oscar Núñez 2,3 and Marinella Farré 1,* 1 Department of Environmental Chemistry, IDAEA-CSIC, 08034 Barcelona, Spain; [email protected] 2 Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, 08034 Barcelona, Spain; [email protected] 3 Serra Húnter Professor, Generalitat de Catalunya, 08034 Barcelona, Spain * Correspondence: [email protected] Received: 5 October 2020; Accepted: 26 November 2020; Published: 28 November 2020 Abstract: This study presents the application of a suspect screening approach to screen a wide range of natural toxins, including mycotoxins, bacterial toxins, and plant toxins, in surface waters. The method is based on a generic solid-phase extraction procedure, using three sorbent phases in two cartridges that are connected in series, hence covering a wide range of polarities, followed by liquid chromatography coupled to high-resolution mass spectrometry. The acquisition was performed in the full-scan and data-dependent modes while working under positive and negative ionisation conditions. This method was applied in order to assess the natural toxins in the Ter River water reservoirs, which are used to produce drinking water for Barcelona city (Spain). The study was carried out during a period of seven months, covering the expected prior, during, and post-peak blooming periods of the natural toxins. Fifty-three (53) compounds were tentatively identified, and nine of these were confirmed and quantified. Phytotoxins were identified as the most frequent group of natural toxins in the water, particularly the alkaloids group. -
Alpha-Tomatine Content in Tomato and Tomato Products Determined By
J. Agric. Food Chem. 1995, 43, 1507-151 1 1507 a-Tomatine Content in Tomato and Tomato Products Determined by HPLC with Pulsed Amperometric Detection Mendel Friedman* and Carol E. Levin Food Safety and Health Research Unit, Western Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, 800 Buchanan Street, Albany, California 94710 Tomato plants (Lycopersicon esculentum) synthesize the glycoalkaloid a-tomatine, possibly as a defense against insects and other pests. As part of an effort to improve the safety of plant foods, the usefulness of a new HPLC pulsed amperometric detection (PAD) method for the direct analysis of a-tomatine in different parts of the tomato plant; in store-bought and field-grown, including transgenic, tomatoes; in a variety of commercial and home-processed tomato products; and in eggplant and tomatillos was evaluated. The method was found to be useful for analysis of a variety of products including high-tomatine calyxes, flowers, leaves, roots, and stems of the tomato plant (14-130 mg/100 g of fresh weight), low-tomatine red tomatoes (0.03-0.08 mg/100 g), intermediate- tomatine tomatoes (0.1-0.8 mg/100 g), and high-tomatine fresh and processed green, including pickled and fried, tomatoes (0.9-55 mg/100 g). No experimental difficulties were encountered with extraction and analysis of tomatine in complex foods such as tomato juice, ketchup, salsa, sauce, and sun-dried tomatoes. Microwaving and frying did not significantly affect tomatine levels of tomato foods. The tomatine content of fresh market and transgenic delayed-ripening varieties was not different from the range ordinarily seen in tomato. -
THE EFFECT of A-SOLANINE on ACETYLCHOLINESTERASE ACTMTY in WO: an EXAMINATION of UNDOCUMENTED BELIEFS a Thesis in Partial Fiifdi
THE EFFECT OF a-SOLANINE ON ACETYLCHOLINESTERASE ACTMTY IN WO:AN EXAMINATION OF UNDOCUMENTED BELIEFS Airdrie M. Waker A Thesis Submitted to the Faculty of Graduate Studies in partial fiifdiment of the requirements for the degree of Master of Science University of Manitoba Winnipeg, Manitoba (c) Airdrie M. Waker, 1997. National Libraiy Bibliothèque nationale du Canada Acquisitions and Acquisitions et Bibliographie Services senrices bibliographiques The author has granted a non- L'auteur a accordé une licence non exclusive licence allowing the exclusive permettant à la National Li- of Canada to Bibliothèque nationale du Canada de reproduce, loan, distniute or sell reproduire, prêter, distn'buer ou copies of this thesis in microform, vendre des copies de cette hese sous paper or electroaic fonnats. la forme de mic~che~nim,de reproduction sur papier ou sur format électronique. The author retains ownership of the L'auteur conserve la propriété du copyright in this thesis. Neither the droit d'auteur qui protège cette thèse. thesis nor substantial extracts fiom it Ni la thèse ni des extraits substantiels may be printed or otherwise de celle-ci ne doivent être imprimés reproduced without the author's ou autrement reproduits sans son permission. autorisation. COPYRIGET PERMISSION PAGE THE EFFECT OF a-SOLANINE ON ACTEYLCROLINESTERASE ACTIVITY --IN VIVO: ANEXAKDUTIONOF UNDOCüMENTED BELIEFS A Thcrir/Pmcticum sabmittd to the Faculty of Graduate Studics of The Univenity of Manitoba in partial falfillmet of the reqaimmenti of the dm of MASTER OF SCIENCE Airdrie M. WaLker 1997 (c) Pennissiom hm ken granted to the Librnry of The University of Minitoba to Itnd or seiî copies of thu thesis/prptcticum, to the Natiooai Library of CanPàa to micronlm this thesis and to lend or sel1 copies of the mm, and to Dissertations Abstracb IaternatiooaI to pablisb an abstnct of this thesidprpcticam. -
Steroidal Glycoalkaloids in Solanum Species: Consequences for Potato Breeding and Food Safety
STEROIDAL GLYCOALKALOIDS IN SOLANUM SPECIES: CONSEQUENCES FOR POTATO BREEDING AND FOOD SAFETY CENTRALE LANDBOUWCATALOQUS 0000 0352 3277 Promotoren: dr. J.J.C. Scheffer bijzonder hoogleraar in de kruidkunde dr. J.H. Koeman hoogleraar in de toxicologie 0ù&K>\\ZO\ W.M.J. VAN GELDER STEROIDAL GLYCOALKALOIDS IN SOLANUM SPECIES: CONSEQUENCES FOR POTATO BREEDING AND FOOD SAFETY Proefschrift ter verkrijging van de graad van doctor in de landbouwwetenschappen, op gezag van de rector magnificus, dr. H.C. van der Plas, in het openbaar te verdedigen op woensdag 11 oktober 1989 BIBLIOTHEEK des namiddags te vier uur in de aula VVUNIVERSITEI T van de Landbouwuniversiteit te Wageningen r '^* tttJoJlO' , f301 STELLINGEN 1.D eveelvuldi g gehanteerde limietva n 200m g steroidalkaloidglycosiden per kg verse ongeschilde aardappel, als criterium voor consumenten- veiligheid, berust noch op toxicologische studies noch op kennis over het voorkomen van steroidalkaloidglycosiden inwild e Solanum-soorten en dient derhalve als arbitrair teworde nbeschouwd . Dit proefschrift. 2. Voor de analyse van steroidalkaloidglycosiden in Solanum-soorten is capillaire gaschromatografie in combinatie met simultane vlamionisatie- detectie (FID) en specifieke-stikstofdetectie (NPD) minimaal noodzake lijk;bi j voorkeur dientmassaspectrometri e teworde n toegepast. Ditproefschrift . 3.He tvermoge nva n aardappelen tothe t accumulerenva n steroidalkaloid glycosiden onder praktijkcondities van teelt, bewaring en verwerking, dient een van de belangrijkste criteria te zijn bij het beoordelen van nieuwe rassen ophu n geschiktheidvoo r consumptie. Ditproefschrift . 4. Op grond van de huidige inzichten in de chemie enhe t voorkomen van steroidalkaloidglycosiden in Solanum-soorten kan geconcludeerd worden dat veel fytochemische en toxicologische studies tot misleidende onderzoekresultaten kunnenhebbe n geleid. -
Fall TNP Herbals.Pptx
8/18/14 Introduc?on to Objecves Herbal Medicine ● Discuss history and role of psychedelic herbs Part II: Psychedelics, in medicine and illness. Legal Highs, and ● List herbs used as emerging legal and illicit Herbal Poisons drugs of abuse. ● Associate main plant and fungal families with Jason Schoneman RN, MS, AGCNS-BC representave poisonous compounds. The University of Texas at Aus?n ● Discuss clinical management of main toxic Schultes et al., 1992 compounds. Psychedelics Sacraments: spiritual tools or sacred medicine by non-Western cultures vs. Dangerous drugs of abuse vs. Research and clinical tools for mental and physical http://waynesword.palomar.edu/ww0703.htm disorders History History ● Shamanic divinaon ○ S;mulus for spirituality/religion http://orderofthesacredspiral.blogspot.com/2012/06/t- mckenna-on-psilocybin.html http://www.cosmicelk.net/Chukchidirections.htm 1 8/18/14 History History http://www.10zenmonkeys.com/2007/01/10/hallucinogenic- weapons-the-other-chemical-warfare/ http://rebloggy.com/post/love-music-hippie-psychedelic- woodstock http://fineartamerica.com/featured/misterio-profundo-pablo- amaringo.html History ● Psychotherapy ○ 20th century: un;l 1971 ● Recreaonal ○ S;mulus of U.S. cultural revolu;on http://qsciences.digi-info-broker.com http://www.uspharmacist.com/content/d/feature/c/38031/ http://en.wikipedia.org/nervous_system 2 8/18/14 Main Groups Main Groups Tryptamines LSD, Psilocybin, DMT, Ibogaine Other Ayahuasca, Fly agaric Phenethylamines MDMA, Mescaline, Myristicin Pseudo-hallucinogen Cannabis Dissociative -
Mass Spectrometry: a Rosetta Stone to Learn How Fungi Interact and Talk
life Review Mass Spectrometry: A Rosetta Stone to Learn How Fungi Interact and Talk Erika Calla-Quispe 1 , Hammerly Lino Fuentes-Rivera 1,2 , Pablo Ramírez 2, Carlos Martel 1,3 and Alfredo J. Ibañez 1,* 1 Instituto de Ciencias Ómicas y Biotecnología Aplicada (ICOBA), Pontificia Universidad Católica del Perú (PUCP), Av. Universitaria 1801, San Miguel 15088, Lima, Peru; [email protected] (E.C.-Q.); [email protected] (H.L.F.-R.); [email protected] (C.M.) 2 Laboratory of Molecular Microbiology and Biotechnology, Faculty of Biological Sciences, Universidad Nacional Mayor de San Marcos (UNMSM), Av. Germán Amézaga 375, Lima 15081f, Peru; [email protected] 3 Museo de Historia Natural, Universidad Nacional Mayor de San Marcos (UNMSM), Av. Arenales 1256, Jesús María 15072, Lima, Peru * Correspondence: [email protected]; Tel.: +51-01-6262000 (ext. 2006) Received: 30 May 2020; Accepted: 18 June 2020; Published: 20 June 2020 Abstract: Fungi are a highly diverse group of heterotrophic organisms that play an important role in diverse ecological interactions, many of which are chemically mediated. Fungi have a very versatile metabolism, which allows them to synthesize a large number of still little-known chemical compounds, such as soluble compounds that are secreted into the medium and volatile compounds that are chemical mediators over short and long distances. Mass spectrometry (MS) is currently playing a dominant role in mycological studies, mainly due to its inherent sensitivity and rapid identification capabilities of different metabolites. Furthermore, MS has also been used as a reliable and accurate tool for fungi identification (i.e., biotyping). -
The Characteristics, Occurrence, and Toxicological Effects of Patulin
Food and Chemical Toxicology 129 (2019) 301–311 Contents lists available at ScienceDirect Food and Chemical Toxicology journal homepage: www.elsevier.com/locate/foodchemtox Review The characteristics, occurrence, and toxicological effects of patulin T ∗ Iman Saleh , Ipek Goktepe Department of Biological and Environmental Sciences, College of Art and Science, Qatar University, P.O. Box 2713, Doha, Qatar ARTICLE INFO ABSTRACT Keywords: Mycotoxins are the secondary metabolites secreted by different types of fungi to which humans can get exposed Patulin mainly via ingestion. Patulin (C7H6O4) is a polyketide lactone produced by various fungal specifies, including Penicillium expansum Penicillium expansum as the main producer. P. expansum can infect different fruits and vegetables yet it has Health risk assessment preference to apples in which they cause blue rot. Therefore, apples and apple-based food products are the main Apple-based food source of Patulin exposure for humans. Patulin was first identified in 1943 under the name of tercinin as a Apple juice possible antimicrobial agent. Although it is categorized as a non-carcinogen, Patulin has been linked, in the last decades, to neurological, gastrointestinal, and immunological adverse effects, mainly causing liver and kidney damages. In this review, the characteristics of and possible human exposure pathways to Patulin are discussed. Various surveillance and toxicity studies on the levels of Patulin in various food products and effects of Patulin on cells and animal models have been documented as well. Importance of epidemiological studies and a sum- mary of the possible toxicity mechanisms are highlighted with a case study. The commonly used control methods as described in the literature are also discussed to guide future researchers to focus on mitigating mycotoxins contamination in the food industry. -
NON-TARGET ANALYSIS of BIOREMEDIATED SOIL Zhenyu
NON-TARGET ANALYSIS OF BIOREMEDIATED SOIL Zhenyu Tian A dissertation submitted to the faculty at the University of North Carolina at Chapel Hill in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Environmental Sciences and Engineering in the Gillings School of Global Public Health. Chapel Hill 2018 Approved by: Michael D. Aitken Wanda M. Bodnar Avram Gold Kun Lu Jason D. Surratt © 2018 Zhenyu Tian ALL RIGHTS RESERVED ii ABSTRACT Zhenyu Tian: Non-target Analysis of Bioremediated Soil (Under the direction of Michael D. Aitken) Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous pollutants of environmental concern. Bioremediation, relying on stimulation of natural microbial degradation processes, is a well-established technology to clean up PAH-contaminated soils. However, bioremediation does not necessarily lead to a reduction in soil toxicity. PAH-contaminated sites are affected by extremely complex mixtures, like coal tar or creosote, and biotransformation products or co- occurring compounds can also contribute to the overall toxicological effects of contaminated soil before and after bioremediation. Therefore, the objective of this dissertation was to use non- target analysis workflows to identify the genotoxic transformation products, important co- occurring pollutants, and the unrecognized biotransformation pathways that could contribute to explain the toxicological effects observed beyond parent PAHs. To identify the source(s) of increased genotoxicity in bioremediated soil, we pursued a non-target analytical approach combining effect-directed analysis (EDA) and metabolite profiling to compare extracts of PAH-contaminated soil before and after bioremediation. A compound with the composition C15H8O2 and four methylated homologues were shown to accumulate as a result of bioreactor treatment, and the C15H8O2 compound was determined to be genotoxic.