2022

GIERA, D.S.; PREISITSCH, M.; BREVARD, H.; NEMETZ, J.; Quantitative removal of pyrrolizidine alkaloids from essential oils by the hydrodistillation step in their manufacturing process, Planta medica, 88  (7), 2022, pp. 538  - 547

MASLO, R.; MORLOCK, G.; SIEVERS, H.; PREUSSKER, A.; BAUER, K.; GEBHART, M.; PAHNE, N.; SCHNEIDER, S.; SCHLAGINTWEIT, B.; TERLINDEN, S.; Fundamental Paper on Plant Extracts in Food from LChG, 2022, pp. 284  - 299

2021

GIERA, D.S.; PREISITSCH, M.; BREVARD, H.; NEMETZ, J.; Quantitative removal of pyrrolizidine alkaloids from essential oils by the hydrodistillation step in their manufacturing process, Planta medica, 2021,

PREISITSCH, M.; GIERA, D.; FLAMM, D.; FRANZ-OBERDORF, K.; GERK,E H.; STEINHOFF, B.;  Verification of chromatographic pharmacopoeial procedures for herbal drugs and herbal drug preparations, Pharmazeutische Industrie, 83  (9), 2021, pp. 1159  - 1174

KNÖDLER, M.; HÄFNER, E.; KLIER, B.; ALBERT, H.; BINDER, G.; SCHENK, A.; STEINHOFF, B.;  Evaluating a comprehensive database on pesticide residues in essential oils: An update, Journal of applied research on medicinal and aromatic plants, 20 2021, pp. 100283

KLIER, B.; Analytik pflanzlicher Drogen und Zubereitungen nach Arzneibuch (Ph.Eur.), BAH-Akademie-Seminar 2021, 2021, pp. 1  - 44

HADI, N.S.A.; BANKOGLU, E.E.; STOPPER, H.; KELBER, O.; SIEVERS, H.; Studies on mechanism of genotoxicity of selected  pyrrolizidine alkaloids  in HepG2 cells invitro, Zeitschrift fur Phytotherapie, 42  (Suppl. 1), 2021, pp. S20  - S21

2020

KNÖDLER, M.; HÄFNER, E.; KLIER, B.; ALBERT, H.; BINDER, G.; SCHENK, A.; STEINHOFF, B.;  Evaluating a comprehensive database on pesticide residues in essential oils: An update, Journal of applied research on medicinal and aromatic plants, 2020,

SCHRENK, D.; GAO, L.; LIN, G.; MAHONY, C.; MULDER, P.P.J.; PEIJNENBURG, A.; PFUHLER, S.; RIETJENS, I.M.C.M.; RUTZ, L.; STEINHOFF, B.; THESE, A.; Pyrrolizidine alkaloids in food and phytomedicine: Occurrence, exposure, toxicity, mechanisms, and risk assessment - A review, Food and chemical toxicology, 136 2020, pp. 111107

2019

SELMAR, D.; WITTKE, C.; BECK-VON WOLFFERSDORFF, I.; KLIER, B.; LEWERENZ, L.; KLEINWÄCHTER, M.; NOWAK, M.; Transfer of pyrrolizidine alkaloids between living plants: A disregarded source of contaminations, Environmental pollution, 248  (15), 2019, pp. 456  - 461

HADI, N.S.A.; BANKOGLU, E.E.; KELBER, O.; SIEVERS, H.; STOPPER, H.; Studies on mechanism of genotoxicity of selected pyrrolizidine alkaloids in HepG2 cells in vitro, International 47th Conference of the  European Environmental Mutagenesis and Genomics Society (EEMGS),  Rennes, France 19.-23. May 2019,

2018

NOLTE, K.U.; HÖHNE, C.; WAGNER, B.; WAIMER, F.; ANDERSEN, A.; STEINHOFF, B.; Lean Application für pflanzliche Arzneimittel - Ein Plädoyer für eine schlanke Zulassungsdokumentation, Pharmazeutische Industrie, 80  (2), 2018, pp. 176  - 181

WILLIUS, M.; HÄFNER, E.; Database Evaluation 2017 - Pyrrolizidine alkaloids (PA) - Tropane alkaloids (TA), Tea Subgroup Meeting, 2018,

2017

SCHULZKI, G.; NUESSLEIN, B.; SIEVERS, H.; Transition rates of selected metals determined in various types of teas (Camellia sinensis L. Kuntze) and herbal/fruit infusions, Food chemistry,  215  (Januar), 2017, pp. 22  - 30

SIEVERS, H.; HMPC-Monografien im Kontext der Weiterentwicklung und Innovation bei Phytopharmaka, Zeitschrift für Phytotherapie, 38 2017, pp. 20  - 23

THEUSER, A.K.; KNOLL, S.; WEBER, N.; SIEVERS, H.; SCHWITULLA, J.; FASCHING, P.A.; BECKMANN, M.W.; HACK, C.C. ; Anwendung von pflanzlichen Produkten durch Patientinnen mit Mammakarzinom, Internet, 2017,

2016

NOWAK, M.; WITTKE, C.; LEDERER, I.; KLIER, B.; KLEINWÄCHTER, M.; SELMAR, D.; Interspecific transfer of pyrrolizidine alkaloids: An unconsidered source of contaminations of phytopharmaceuticals and plant derived commodities, Food chemistry, 213  (December), 2016, pp. 163  - 168

DITTRICH, H.; HÖSEL, K.; SIEVERS, H.; KLIER, B.; WAIMER, F.; HEUBERGER, H.; PLESCHER, A.; ARMBRÜSTER, N.; STEINHOFF, B.; Code of Practice zur Vermeidung und Verringerung von Kontaminationen pflanzlicher Arzneimittel mit Pyrrolizidinalkaloiden, Pharmazeutische Industrie, 78  (6), 2016, pp. 836  - 845

KURTH, H.; Anthrachinon-Gehalte von Sennesextrakten, Vergleich der photometrischen mit der HPLC-Bestimmung, Poster, Phytotherapie-Kongress, 2016,

2015

GLATTHAAR-SAALMÜLLER, B.; FAL, A.M.; SCHÖNKNECHT, K.; CONRAD, F.; SIEVERS, H.; SAALMÜLLER, A.; Antiviral activity of an aqueous extract derived from Aloe arborescens Mill. against a broad panel of viruses causing infections of the upper respiratory tract, Phytomedicine, 22  (10), 2015, pp. 911  - 920

HEUBERGER, H.; HOLZAPFEL, C.; SEIDENBERGER, R.; SCHMÜCKER, R.; TORRES-LONDOÑO, P.;  Qualitätsvergleich vier chinesischer Heilpflanzen aus bayerischem Versuchsanbau im Vergleich zu Importware: Identität, sensorische Eigenschaften, Inhaltsstoffe und Reinheit, Zeitschrift für Arznei- und Gewürzpflanzen, 20  (3), 2015, pp. 107  - 118

NIKLES,S.; HEUBERGER, H.; HILSDORF, E.; SCHMÜCKER, R.; SEIDENBERGER, R.: BAUER, R.;  Influence of Processing on the Content of Toxic Carboxyatractyloside and Atractyloside and the Microbiological Status of Xanthium sibiricum Fruits (Cang'erzi), Planta medica, 81  (12-13), 2015, pp. 1213  - 1220

RZYMSKI, P.; PISCHEL, I.; CONRAD, F.; ZWINGERS, T.; RZYMSKI, P.; OPALA, T.; The bioavailability of calcium in the form of pyruvate, carbonate, citrate–malate in healthy postmenopausal women, European food research and technology, 2015, pp. 1  - 6

ANDERSEN, A.; HOPPENHEIT, A.; HÖHNE, C.; KREUTZ, F.; STEINHOFF, B.; Change Management of Herbal Medicinal Products. A pragmatic and risk-based approach to meet regulatory requirements , Pharmazeutische Industrie, 77  (11), 2015, pp. 1593  - 1602

KLIER, B.; KNÖDLER, M.; PESCHKE, J.; RIEGERT, U.; STEINHOFF, B.; Pesticide residues in essential oils: Evaluation of a database, Pharmeuropa Bio und Scientific Notes,  (10), 2015, pp. 131  - 149

KLIER, B.; KNÖDLER, M.; PESCHKE, J.; RIEGERT, U.; STEINHOFF, B.; Pesticide residues in essential oils: evaluation of a database, Journal of applied research on medicinal and aromatic plants, 15 2015, pp. 100223

2014

GARCIA-ALVAREZ, A.; EGAN, B.; DE KLEIN, S.; DIMA, L.; MAGGI, F.M.; ISONIEMI, M.; RIBAS-BARBA, L.; RAATS, M.M.; MEISSNER, E.M.; BADEA, M.; BRUNO, F.; SALMENHAARA M.; MILÀ-VILLARROEL, R.; KNAZE, V.; HODGKINS, C.; MARCULESCU, A.; UUSITALO, L.; RESTANI, P.; SERRA-MAJEM, L.; Usage of Plant Food Supplements across Six European Countries: Findings from the PlantLIBRA Consumer Survey, PLoS one, 9  (3), 2014, pp. e92265

JOERIN, L.; KAUSCHKA, M.; BONNLÄNDER, B.; PISCHEL, I.; BENEDEK, B.; BUTTERWECK, V.;  Ficus carica Leaf Extract Modulates the Lipid Profile of Rats Fed with a High-Fat Diet through an Increase of HDL-C, Phytotherapy research, 28  (2), 2014, pp. 261  - 267

SCHÖNKNECHT, K.; CONRAD, F.; SIEVERS, H.; JAMBOR, J.; FAL, A.M.; Anti-viral activity of Biostymina® (Aloe arborescens folii recentis extractum fluidum) against viruses causing upper respiratory tract infections tested in vitro, Postêpy fitoterapii ,  (3), 2014, pp. 127  - 135

WAGNER, B.; WAIMER, F.; KLIER, B.; TEGTMEIER, M.; STEINHOFF, B.; Implementation of GMP for the Manufacture of Herbal Preparations, Pharmazeutische Industrie, 76  (2), 2014, pp. 222  - 230

WAGNER, B.; WAIMER, F.; KLIER, B.; TEGTMEIER, M.; STEINHOFF, B.; Die Umsetzung der Guten Herstellungspraxis (GMP) bei den initialen Prozessschritten der Herstellung pflanzlicher Wirkstoffe, Zeitschrift für Arznei- und Gewürzpflanzen, 18  (2), 2014, pp. 66  - 69

ALGIERI, F.; RODRIGUEZ-NOGALES, A.; GARRIDO-MESA, N.; ZORRILLA, P.; BURKARD, N.; PISCHEL, I.; SIEVERS, H.; BENEDEK, B.; FEISTEL, B.; WALBROEL, B.; RODRIGUEZ-CABEZAS, M.E.; GALVEZ, J.; Intestinal anti-inflammatory activity of the Serpylli herba extract in experimental models of rodent colitis, Journal of Crohn's and Colitis, 8  (8), 2014, pp. 775  - 788

DA-COSTA-ROCHAA, I.; BONNLAENDER, B.; SIEVERS, H.; PISCHEL, I.; HEINRICH, M.; Hibiscus sabdariffa L. – A phytochemical and pharmacological review, Food chemistry, 165  (December), 2014, pp. 424  - 443

2013

ZÖLLNER, T.; ACKERMANN, T.; SCHWARZ, M.; Dicaffeoylchinasäuren - Vorkommen, Strukturaufklärung und Charakterisierung als primäre phyproof ® - Referenzsubstanzen , Poster, 2013,

ZÖLLNER, T.; ACKERMANN, T.; SCHWARZ, M.; Flavanolignane aus Silybum marianum L. - Struktur und Charakterisierung als primäre phyproof ®  - Referenzsubstanzen  , Poster, 2013,

ZÖLLNER, T.; ACKERMANN, T.; SCHWARZ, M.; Süße Pflanzen - Verwendung, Analytik und Charakterisierung primärer phyproof ®  - Referenzsubstanzen , Poster, 2013,

ZÖLLNER, T.; SCHWARZ, M.; Herbal Reference Standards: applications, definitions and regulatory requirements, Revista Brasileira de Farmacognosia, 23  (1), 2013, pp. 1  - 21

ALBERT, H.; BUSCH, J.; KLIER, B.; KLÖTZEL, M.;  KÜHN, M.; STEINHOFF, B.; The occurrence of bromide in herbal drugs: Is there a need for a Ph. Eur. limit?, Pharmeuropa scientific notes,  (2), 2013, pp. 40  - 63

BASTIAN, P.; FAL, A.M.; JAMBOR, J.; MICHALAK, A.; NOSTER, G.; SIEVERS, H.; STEUBER, A.; WALAS-MARCINEK, N.; Candelabra Aloe (Aloe arborescens) in the therapy and prophylaxis of upper respiratory tract infections: traditional use and recent research results, Wiener medizinische Wochenschrift, 163  (3-4), 2013, pp. 73  - 79

DELDICQUE, L.; VAN PROEYEN, K.; RAMAEKERS, M.; PISCHEL, I.; SIEVERS, H.; HESPEL, P.;  Additive insulinogenic action of Opuntia ficus-indica cladode and fruit skin extract and leucine after exercise in healthy males, Journal of the International Society of Sports Nutrition, 10  (45), 2013, pp. 1  - 6

2012

VAN PROEYEN, K.; RAMAEKERS, M.; PISCHEL, I.; HESPEL, P.; Opuntia ficus-indica ingestion stimulates peripheral disposal of oral glucose before and after exercise in healthy men, International journal of sport nutrition and exercise metabolism, 22  (4), 2012, pp. 284  - 291

WEINOEHRL, S.; FEISTEL, B.; PISCHEL, I.; KOPP, B.; BUTTERWECK, V.; Comparative Evaluation of Two Different Artemisia dracunculus L. Cultivars for Blood Sugar Lowering Effects in Rats, Phytotherapy research, 26  (4), 2012, pp. 625  - 629

GLATTHAAR-SAALMÜLLER, B.; MICHALAK, A.; BASTIAN, P.; FAL, A.M.; Ocena aktywnosci przeciwwirusowej in vitro preparatów Biostymina i Bioaron C wzgledem ludzkiego rinowirusa (HRV14) - In vitro evaluation of antiviral activity of biostymina and bioaron c against human pathogenic virus: rhinovirus type 14 (HRV14), Postêpy fitoterapii,  (3), 2012, pp. 156  - 161

GRAF VOM HAGEN-PLETTENBERG, M.; KLIER, B.; TEGTMEIER, M.; WAIMER, F.; STEINHOFF, B.;  Good Agricultural and Collection Practice (GACP)  / A Pragmatic and Efficient State-of-the-art Standard Cultivation, collection and primary processing of medicinal, Pharmazeutische Industrie, 74  (7), 2012, pp. 1078  - 1084

GRAF VOM HAGEN-PLETTENBERG, M.; KLIER, B.; TEGTMEIER, M.; WAIMER, F.; STEINHOFF, B.;  Die Bedeutung der Good Agricultural and Collection Practice (GACP) bei der Herstellung pflanzlicher Wirkstoffe, Zeitschrift für Arznei- und Gewürzpflanzen, 17  (3), 2012, pp. 105  - 108

HESPEL, P.; PISCHEL, I.; VAN PROEYEN, K.; Dose finding of OpunDiaTM for its effect on oral glucose tolerance and plasma insulin, 9th Annual Conference of the International Society of Sports Nutrition (ISSN), 2012,

KAUSCHKA, M.; BURKARD, N.; PISCHEL, I.; OBOLSKIY, D.; HEINRICH, M.; BUTTERWECK, V.; FEISTEL, B.; Russian Tarragon – A spice plant and its health potentials, NutraCos, 11  (July/August ), 2012, pp. 2  - 6

OPPLIGER, B.; JOERIN, L.; KAUSCHKA, M.; PISCHEL, I.; BONNLÄNDER, B.; FEISTEL, B.; BENEDEK, B.; BUTTERWECK, V.; Potential Herbal Preparations for the Prevention of the Metabolic Syndrome in Rats, GA Tagung, New York, 2012,

2011

BLOOMER, R.J.; CANALE, R.E.; PISCHEL, I:; Effect of an aqueous Russian tarragon extract on glucose tolerance in response to an oral dextrose load in non-diabetic men, Nutrition and dietary supplements, 3  (1), 2011, pp. 43  - 49

BUTTERWECK, V.; SEMLIN, L.; FEISTEL, B.; PISCHEL, I.; BAUER, K.; VERSPOHL, E.J.;  Comparative evaluation of two different Opuntia ficus-indica extracts for blood sugar lowering effects in rats, Phytotherapy research, 25  (3), 2011, pp. 370  - 375

HÖHNE, C.; KRUSE, S.O.; DAMMERTZ, W.; KROLL, U.; TEGTMEIER, M.; STEINHOFF, B.; On-going stability testing of herbal medicinal products, Pharmazeutische Industrie, 73  (8), 2011, pp. 1401  - 1412

OBOLSKIY, D.; PISCHEL, I.; FEISTEL, B.; GLOTOV, N.; HEINRICH, M.; Artemisia dracunculus L. (Tarragon): A Critical Review of Its Traditional Use, Chemical Composition, Pharmacology, and Safety, Journal of agricultural and food chemistry, 59  (2), 2011, pp. 11367  - 11384

PISCHEL, I.; VAN PROEYEN, K.; HESPEL, P.; Effect of OpunDia TM on oral glucose tolerance and plasma insulin before and after exercise, Poster, 2011,

PISCHEL, I.; BURKARD, N.; KAUSCHKA, M.; BUTTERWECK, V.; BLOOMER, R.J.; Potential application of Russian Tarragon (Artemisia dracunculus L.) in health and sports , Poster, 2011,

SANZINI, E.; BADEA, M.; DOS SANTOS, A.; RESTANI, P.; SIEVERS, H.; Quality control of plant food supplements , Food and function, 2  (12), 2011, pp. 740  - 746

2010

FEISTEL, B.; WALBROEL, B.; BENEDEK, B.; Damiana (Turnera diffusa Willd.) - A traditionally used aphrodisiac as modern PDE-5 inhibitor, Planta medica, 76  (12), 2010, pp. P002

GODARD, M.P.; EWING B.A.; PISCHEL, I.;  ZIEGLER, A.;  BENEDEK, B.; FEISTEL, B.; Acute blood glucose lowering effects and long-term safety of OpunDiaTM supplementation in pre-diabetic males and females, Journal of ethnopharmacology, 130  (3), 2010, pp. 631  - 634

OBOLSKIY, D.; PISCHEL, I.; SIRIWATANAMETANON, N.; HEINRICH, M.; Garcinia mangostana L. – Ein phytochemisches und pharmakologisches Porträt[*], Zeitschrift für Phytotherapie, 31  (2), 2010, pp. 110  - 118

ROTH-EHRANG, R.; ASCHE, S.; HUBBERT, M.; KRUSE, S.O.; LUTZ-RÖDER, A.; ; POETSCH, F.; TEGTMEIER, M.; WIEDEMANN, A.; STEINHOFF, B.; Stability Testing of Herbal Medicinal Products, Pharmazeutische Industrie, 72  (7), 2010, pp. 1161  - 1174

SCHMÜCKER, R.; LENZER, E.; Die neuen europäischen Anforderungen an die mikrobiologische Qualität pflanzlicher Arzneimittel zur oralen Anwendung, Pharmazeutische Industrie, 72  (2), 2010, pp. 324  - 330

BENEDEK, B.; ZIEGLER, A.; OTTERSBACH, P.; Absence of mutagenic effects of a particular Symphytum officinale L. liquid extract in the bacterial reverse mutation assay, Phytotherapy research, 24  (3), 2010, pp. 466  - 468

2009

GASSER, U.; KLIER, B.; KÜHN, A.V.; STEINHOFF, B.; Current findings on the heavy metal content in herbal drugs, Pharmeuropa, 21  (1), 2009, pp. 37  - 49

KROLL, U.; REIF, K.; LEDERER, I.; FÖRSTER, G.; ZAPP, J.;  Kaempferol-3,4'-di-O-ß-glucopyranoside-7- O-alpha-rhamnopyranoside as a new flavonoid from Iberis amara L., Pharmazie, 64 2009, pp. 142  - 144

MUELLER, S.C.; MAJCHER-PESZYNSKA, J.; MUNDKOWSKI, R.G.; UEHLEKE, B.; KLAMMT, S.; SIEVERS, H.; LEHNFELD, R.; FRANK, B.; THUROW, K.; KUNDT, G.; DREWELOW, B.; No clinically relevant CYP3A induction after St John's wort with low hyperforin content in healthy volunteers, European journal of clinical pharmacology, 65  (1), 2009, pp. 81  - 87

OBOLSKIY, D.; PISCHEL, I.; SIRIWATANAMETANON, N.; HEINRICH, M.; Garcinia mangostana L. : a phytochemical and pharmacological review, Phytotherapy research, 23  (8), 2009, pp. 1047  - 1065

SANG, S.; PISCHEL, I.; FEISTEL, B.; BENEDEK, B.; Trapping of reactive dicarbonyl compounds by different Opuntia ficus-indica (L.) Mill. preparations in vitro, 57th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research, Geneva, Switzerland 2009,

SCHWARZ, M.; KLIER, B.; SIEVERS, H.; Herbal Reference Standards, Planta medica, 75  (7), 2009, pp. 689  - 703

BEGROW, F.; ENGELBERTZ, J.; FEISTEL, B.; LEHNFELD, R.; BAUER, K.; VERSPOHL, E.J.; Impact of Thymol in Thyme Extracts on Their Antispasmodic Action and Ciliary Clearance, Planta medica, 76  (4), 2009, pp. 311  - 318

BENEDEK, B.; ZIEGLER, A.; OTTERSBACH, P.; STAIGER, C.; Absence of mutagenic effects of a particular Symphytum officinale L. liquid extract in the bacterial reverse mutation assay, 57th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research, Geneva, Switzerland 2009,

DOEHMER, J.; SIEVERS, H.; Zur Sicherheit von Ginkgoblättern, 2009, pp. 1  - 8

2008

HATTESOHL, M.; FEISTEL, B.; SIEVERS, H.; LEHNFELD, R.; HEGGER, M.; WINTERHOFF, H.;  Extracts of Valeriana officinalis L. s.l. show anxiolytic and antidepressant effects but neither sedative nor myorelaxant properties, Phytomedicine, 15  (1-2), 2008, pp. 2  - 15

HATTESOHL, M.; FEISTEL, B.; SIEVERS, H.; LEHNFELD, R.; WINTERHOFF, H.; Pharmakologische Untersuchungen zu zentralnervösen Wirkungen von Zubereitungen aus Valeriana officinalis L. s.I., Zeitschrift für Phytotherapie, 29  (Suppl. 1), 2008, pp. S9

HEUBERGER, H.; BOMME, U.; FRIEDMANN, B.; GROSS, J.; KABELITZ, L.; REIF, R.; SCHMÜCKER, R.; TORRES-LONDOÑO, P.; Qualität von TCM-Drogen aus deutschem Anbau - Vergleich mit Importware , Deutsche Apotheker Zeitung, 148  (41), 2008, pp. 4562  - 4567

HEUBERGER, H.; BOMME, U.; GROSS, J.; KABELITZ, L.; REIF, K.; SCHMÜCKER, R.;  Inhaltsstoffgehalte ausgewählter Heilpflanzen für die traditionelle chinesische Medizin aus deutschem Versuchsanbau im Vergleich zu Importware aus Asien, Zeitschrift für Arznei- und Gewürzpflanzen, 13  (4), 2008, pp. 173  - 181

JÄGER, R.; KENDRICK, I.P.; PURPURA, M.; HARRIS, R.C.; RIBNICKY, D.M.; PISCHEL, I.; The effect of Russian Tarragon (Artemisia dracunculus L.) on the plasma creatine concentration with creatine monohydrate administration, Journal of the International Society of Sports Nutrition, 5  (Suppl. 1), 2008, pp. 1  - 2

LANG, F.; HÖHNE, C.; POETSCH, F.; Lagerung, Transport und Vertrieb von Arzneimitteln: Ist eine Temperaturüberwachung nötig?, Pharmazeutische Industrie, 70  (6), 2008, pp. 763  - 766

SCHMÜCKER, R.; LENZER, E.; International harmonisierte Vorschriften zur mikrobiologischen Prüfung nicht-steriler ProdukteTeil 1: Praktische Erfahrungen bei der Durchführung der Eignungsprüfungen an pflanzlichen Fertigarzneimitteln, Pharmazeutische Industrie, 70  (60), 2008, pp. 775  - 781

SCHMÜCKER, R.; LENZER, E.; International harmonisierte Vorschriften zur mikrobiologischen Prüfung nicht-steriler Produkte : Teil 2. Praktische Erfahrungen zu quantitativen Prüfungen spezifizierter Mikroorganismen und Anmerkungen zur mikrobiologische Qualität bei pflanzlichen Fertigarzneimitteln, Pharmazeutische Industrie, 70  (7), 2008, pp. 883  - 886

SCHWARZ, M.; Authentizität von Kaffee bestimmen, Labor Praxis, 32  (3), 2008, pp. 36  - 39

WALBROEL, B.; FEISTEL, B.; PISCHEL, I.; Russian Tarragon (Artemisia dracunculoides L.) : news from a traditional herb, Poster, 2008,

WALBROEL, B.; FEISTEL, B.; LEHNFELD, R.; APPEL, K.; Antidepressant activity of a refined valerian extract : an interesting new feature, Zeitschrift für Phytotherapie, 29  (Suppl. 1), 2008, pp. S32

FEISTEL, B.; FELKER, P.; HASSE, C.;HEINRICH, M.; WYPYSZYK, S.; BUTTERWECK, V.; GODARD, M.; PISCHEL, I.; Opuntia : a cactus crop and its many health benefits, NutraCos,  (Sept./Oct.), 2008, pp. 17  - 22

2007

KLIER, B.; Definition of herbal drug preparations and problems arising from classification, Herba Polonica, 53  (2), 2007, pp. 46  - 47

KLIER, B.; SIEVERS, H.; Contaminants in herbal products : current EU-regulations, Innovations in food technology,  (37), 2007, pp. 36  - 39

KLIER, B.; Definicje ekstraktow roslinnych oraz problemy zwiazane z ich kwalifikacja - Definition of herbal drug preparations and problems arising from classification, Rosliny lecznicze, 2-4  (10-12), 2007, pp. 6  - 11

SIEVERS, H.; Aktuelle Aspekte bei der Entwicklung, Prüfung, Herstellung und Zulassung von Phytopharmaka : Tagungsbericht zum „Phytopharmaka Symposium 2007“ am 20./21. März 2007 in Herzogenaurach, veranstaltet von CONCEPT Heidelberg, Pharmazeutische Industrie,  69  (7), 2007, pp. 866  - 869

DIMPFEL, W.; KLER, A.; KRIESL, E.; LEHNFELD, R.; Theogallin and L-theanine as active ingredients in decaffeinated green tea extract: I. electrophysiological characterization in the rat hippocampus in-vitro, Journal of pharmacy and pharmacology, 59  (8), 2007, pp. 1131  - 1136

DIMPFEL, W.; KLER, A.; KRIESL, E.; LEHNFELD, R.; Theogallin and L-theanine as active ingredients in decaffeinated green tea extract: II. Characterization in the freely moving rat by means of quantitative field potential analysis, Journal of pharmacy and pharmacology, 59  (10), 2007, pp. 1397  - 1403

DIMPFEL, W.; KLER, A.; KRIESL, E.; LEHNFELD, R.; KEPLINGER-DIMPFEL, I.K.; Source density analysis of the human EEG after ingestion of a drink containing decaffeinated extract of green tea enriched with l-theanine and theogallin, Nutritional neuroscience, 10  (3/4), 2007, pp. 169  - 180

GRAY, D.; LEVANSELER, K.; PAN, M.; WAYSEK, E.H.; REIF, K.; Evaluation of a method to determine flavonol aglycones in Ginkgo biloba dietary supplement crude materials and finished products by high-performance liquid chromatography : collaborative study, Journal of AOAC International, 90  (1), 2007, pp. 45  - 53

2006

KABELITZ, L.; SIEVERS, H.; Contamination of herbs and herbal preparations in view to Pharmacopoeia and EU regulations : an update, Innovations in food technology,  (Nov.), 2006, pp. 74  - 77

LEDERER, I.; SCHULZKI, G.; GROSS, J.; STEFFEN, J.P.; Combination of TLC and HPLC-MS/MS methods : approach to a rational quality control of Chinese Star Anise, Journal of agricultural and food chemistry, 54  (6), 2006, pp. 1970  - 1974

LEHNFELD, R.; SIEVERS, H.; DITTRICH, H. ; Mutagenicity testing of a herbal tea containing spiny restharrow (Ononis spinosa) root: results of an Ames-Test, Zeitschrift für Phytotherapie, 27  (Suppl.), 2006, pp. P21

MUELLER, S.C.; MAJCHER-PESZYNSKA, J.; UEHLEKE, B.; KLAMMT, S.; MUNDKOWSKI, R.G.; MIEKISCH, W.; SIEVERS, H.; BAUER, S.; FRANK, B.; KUNDT, G.; DREWELOW, B.; The extent of induction of CYP3A by St. John's wort varies among products and is linked to hyperforin dose, European journal of clinical pharmacology, 62  (1), 2006, pp. 29  - 36

POETSCH, F.; ASCHE, S.; STEINHOFF, B.; Stability testing of herbal medicinal products : a report on problematic cases from practice with discussion of possible resolution approaches, Pharmazeutische Industrie, 68  (4), 2006, pp. 476  - 483

ARRANZ, I.; SIZOO, E.; VAN EGMOND, H.; KROEGER, K.; LEGARDA, T.M.; BURDASPAL, P.; REIF, K.; STROKA, J.; Determination of aflatoxin B-1 in medical herbs: Interlaboratory study, Journal of AOAC International, 89  (3), 2006, pp. 595  - 605

COPPENS, P.; DELMULLE, L.; GULATI, O.; RICHARDSON, D.; RUTHSATZ, M.; SIEVERS, H.; SIDANI, S.; Use of botanicals in food supplements, Annals of nutrition and metabolism, 50 2006, pp. 538  - 554

DIMPFEL, W.; KLER, A.; KRIESL, E.; LEHNFELD, R.; KEPLINGER-DIMPFEL, I.K.;  Neurophysiological characterization of a functionally active drink containing extracts of ginkgo and ginseng by source density analysis of the human EEG, Nutritional neuroscience, 9  (5-6), 2006, pp. 213  - 224

HUBBERT, M.; SIEVERS, H.; LEHNFELD, R.; KEHRL, W.; Efficacy and tolerability of a spray with Salvia officinalis in the treatment of acute pharyngitis : a randomised, double-blind, placebo-controlled study with adaptive design and interim analysis, European journal of medical research, 11  (1), 2006, pp. 20  - 26

2005

HOROSZKIEWICZ-HASSAN, M.; BEUSCHER, N.; LEHNFELD, R.; THEISS, U.; PFARR, E.; Tolerability and efficacy of Bioaron C® syrup in treatment of upper respiratory tract infections in children : results of a post-marketing surveillance study in Poland, Herba Polonica, 51  (1/2), 2005, pp. 45  - 53

KABELITZ, L.; Quality of herbal drugs and their preparations: critical criteria and management, Acta horticulturae, 679 2005, pp. 83  - 96

KABELITZ, L.; Pesticide residues in medicinal drugs and their preparations, Pharmeuropa, 17  (1), 2005, pp. 40  - 47

KABELITZ, L.; PhytoLab GmbH & Co. KG : ein hoch entwickeltes Forschungs- und Dienstleistungslabor mit spezieller Expertise für die Arznei- und Gewürzpflanzen-Branche, Zeitschrift für Arznei- und Gewürzpflanzen, 10  (4), 2005, pp. 169

SIEVERS, H.; Reference Standards and materials Validation of analytical procedures, Views of the industry, 2005,

2004

REIF, K.; SIEVERS, H.; STEFFEN, H.P.; The role of chemical reference standards as analytical tools in the quality assessment of botanical materials : a european perspective, HerbalGram,  22  (63), 2004, pp. 38  - 43

DIMPFEL, W.; PISCHEL, I.; LEHNFELD, R.; Effects of lozenge containing lavender oil, extracts from hops, lemon balm and oat on electrical brain activity of volunteers, European journal of medical research, 9  (9), 2004, pp. 423  - 431

HALUSZKA, J.; HOROSZKIEWICZ, M.; LEHNFELD, R.; SIEVERS, H.; Bioaron C in the treatment of upper respiratory tract infections in children results of a open label study in Poland, Internationaler Congress on Natural Products Research, 2004,

KABELITZ, L.; SIEVERS, H.; Contaminants of medicinal and food herbs with a view to EU regulations, Innovations in food technology,  (November), 2004, pp. 25  - 27

KABELITZ, L.; Pestizidrückstände in Arzneidrogen und deren Zubereitung, Pharmazeutische Industrie, 66  (6), 2004, pp. 771  - 779

LEDERER, I.; REIF, K.; STEFFEN, J.P.; Isolation of Anisatin as reference substance and determination of toxic adulterations in Star Anise (Illicium verum) by HPLC-MS/MS, Conference, 2004,

MUELLER, S.C.; UEHLEKE, B.; WOEHLING, H.; PETZSCH, M.; MAJCHER-PESZYNSKA, J.; HEHL, E.M.; SIEVERS, H.; FRANK, B.; RIETHLING, A.K.; DREWELOW, B.; Effect of St John´s wort dose and preparations on the pharmacokinetics of digoxin, Clinical pharmacology and therapeutics,  75  (6), 2004, pp. 546  - 557

2003

SIEVERS, H.; Importance of reference substances for the quality assessment of herbal drug preparations, Herba Polonica, 2003,

SIEVERS, H.; Quality of herbal supplements, Innovations in food technology,  (November), 2003, pp. 20  - 23

SIEVERS, H.; Aktuelle Aspekte bei Entwicklung, Prüfung, Herstellung und Zulassung von Phytopharmaka : Bericht über das "Phytopharmaka Symposium 2003" am 26./27. März 2003 in Heidelberg, veranstaltet von CONCEPT Heidelberg, Pharmazeutische Industrie, 65  (8), 2003, pp. 791  - 795

BÖTTCHER, H.; GÜNTHER, I.; KABELITZ, L.; Physiological postharvest responses of Common Saint-John´s wort herbs (Hypericum perforatum L.), Postharvest biology and technology, 29 2003, pp. 343  - 351

KABELITZ, L.; Neues auf dem Gebiet der Kontaminanten (Pestizide, Schwermetalle, Myktoxine), 2003,

KABELITZ, L.; Mykotoxin erzeugende Mikroorganismen : Aspergillen und Penicillien (stammen aus Lagerungsprozessen) und Fusarentoxine (stammen aus Kontamination auf dem Feld),  2003,

KABELITZ, L.; Contamination of herbal drugs and future developments, Herba Polonica, 49  (1/2), 2003, pp. 89  - 104

KABELITZ, L.; Contamination of herbal drugs in view of European regulations and future developments, Herba Polonica, 49  (1/2), 2003, pp. 67  - 68

KABELITZ, L.; SCHULTE, A.; PhytoLab investiert in die Zukunft, Lebensmittelbrief, 14  (9/10), 2003, pp. 187  - 193

KABELITZ, L.; Microbiological control methods in the European Pharmacopoeia : present and future ; Session IV: Microbiological testing of raw materials; Microbiological quality of herbal medicinal products, Proceedings of the International Symposium, Copenhagen 5-6 May 2003, 2003, pp. 77  - 84

KLIER, B.; SIEVERS, H.; Mycotoxins - EU regulations, methodology and resuits of selected herbal materials, 51. Annual Congress of the Society for Medicinal Plant Research, 2003, pp. P281

LEHNFELD, R.; APPEL, K.; MUIOZ‚ E.; SIEVERS, H.; Anti-inflammatory activity of the herbal product Bioaron C©, 51. Annual Congress of the Society for Medicinal Plant Research, 2003, pp. P 217

REIF, K.; SCHWIND, B.; Development of high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) : methods for the screening of mycotoxins in herbal raw materials, 51. Annual Congress of the Society for Medicinal Plant Research, 2003, pp. P045

2002

KABELITZ, L.; Sposoby korygowania was jakosciowych surowcow roslinnych, Wladomoski Zielarskie,  (2), 2002, pp. 13  - 16

SCHULZ, H.; PFEFFER, S.; QUILITZSCH, R.; STEUER, B.; REIF, K.; Rapid and non-destructive determination of the echinacoside content in Echinacea roots by ATR-IR and NIR spectroscopy, Planta medica, 68  (10), 2002, pp. 926  - 929

2001

KABELITZ, L.; Zur mikrobiologischen Qualität von Arznei- und Gewürzdrogen : sind die bisherigen Anforderungen sachgerecht?, Zeitschrift für Arznei- und Gewürzpflanzen, 6  (3), 2001, pp. 174  - 175

BÖTTCHER, H.; GÜNTHER, I.; KABELITZ, L.; Physiologisches Nachernteverhalten von Thymian (Thymus vulgaris L.) - Physiological Postharvest Response of Thyme (Thymus vulgaris L.) Herbs, Gartenbauwissenschaft, 66  (4), 2001, pp. 172  - 181

1999

KABELITZ, L.; BARBIN, Y.; Les Metaux Lourds dans les plantes medicinales, STP pharma, 9  (6), 1999, pp. 443  - 453

INGENDOH, A.; BÄSSMANN, C.; KIEHNE, A.; ZEY, T.; REIF, K.; LC/MS Analysis of Aflatoxins in Food Samples Using an Ion Trap, Bruker GmbH, 1999, S. 1-3 1999, pp. 1  - 3

1998

KABELITZ, L.; Heavy metals in herbal drugs, European journal of herbal medicine, 4  (1), 1998, pp. 1  - 9

KABELITZ, L.; Zur Schwermetallbelastung von Arznei- und Kräuterdrogen, Pharmazeutische Industrie, 60  (5), 1998, pp. 444  - 451

KABELITZ, L.; Sonnenhut : das Beste ausgepreßt, Pharmazeutische Zeitung, 143  (31), 1998, pp. 2632  - 2638

1997

SCHULZKI, G.; SPIEGELBERG, A.; BÖGL, K.W.; SCHREIBER, G.A.; Detection of radiation-induced hydrocarbons in irradiated fish and prawns by means of on-line coupled liquid chromatography-gas chromatography, Journal of agricultural and food chemistry, 45  (10), 1997, pp. 3921  - 3927

KABELITZ, L.; Korrekturmaßnahmen bei Qualitätsmängeln von Drogen, 1997,

KABELITZ, L.; Korrekturmaßnahmen bei Qualitätsmängeln von Drogen, Drogenreport, 10  (17), 1997, pp. 51  - 54

KABELITZ, L.; Are the current requirements regarding the microbiological purity of medicinal plant drugs practicable, Pharmeuropa, 9  (3), 1997, pp. 570  - 575

KABELITZ, L.; Korrekturmaßnahmen bei Qualitätsmängeln von Drogen, Zeitschrift für Arznei- und Gewürzpflanzen, 2  (3), 1997, pp. 120  - 126

1996

KABELITZ, L.; Mikrobiologische Belastungen an Heil- und Gewürzpflanzendrogen, Arznei-und Gewürzpflanzen, 1  (1), 1996, pp. 9  - 16

METZGER, W.; REIF, K.; Determination of 1,8-dihydroxyanthranoids in senna, Journal of chromatography - A, 740 1996, pp. 133  - 138

1995

KABELITZ, L.; Gefahr durch kontaminierte Phytopharmaka?, Zeitschrift für Phytotherapie, 16  (6), 1995, pp. 286  - 290

REIF, K.; METZGER, W.; Determination of aflatoxins in medicinal herbs and plant extracts, Journal of chromatography - A, 692  (1-2), 1995, pp. 131  - 136

1994

KABELITZ, L.; REIF, K.; Anthranoide in Sennesdrogen : ein analytischer Beitrag zur Riskobewertung, Deutsche Apotheker Zeitung, 134  (51/52), 1994, pp. 37  - 40