All Stories

  1. A Study of the Chemical Composition, Antioxidant Potential, and Acute Toxicity of Bulgarian Tanacetum vulgare L. Essential Oil

    Article • Molecules, August 2023, MDPI AG

    Petko Denev

  2. Biologically Active Compounds from Probiotic Microorganisms and Plant Extracts Used as Biopreservatives

    Article • Microorganisms, July 2023, MDPI AG

    Petko Denev

  3. Phytochemical Characterization of Purple Coneflower Roots (Echinacea purpurea (L.) Moench.) and Their Extracts

    Article • Molecules, May 2023, MDPI AG

    Petko Denev

  4. Effects of Sideritis scardica Extract on Scopolamine-Induced Learning and Memory Impairment in Mice

    Article • Journal of Alzheimer’s Disease, April 2023, IOS Press

    Petko Denev

  5. Antitumor and Antioxidant Activities of In Vitro Cultivated and Wild-Growing Clinopodium vulgare L. Plants

    Article • Plants, April 2023, MDPI AG

    Petko Denev

  6. Subcritical Water Extraction of Rosmarinic Acid from Lemon Balm (Melissa officinalis L.) and Its Effect on Plant Cell Wall Constituents

    Article • Antioxidants, April 2023, MDPI AG

    Petko Denev

  7. Effect of Gamma Irradiation on Fat Content, Fatty Acids, Antioxidants and Oxidative Stability of Almonds, and Electron Paramagnetic Resonance (EPR) Study of Treated Nuts

    Article • Molecules, February 2023, MDPI AG

    Petko Denev

  8. Phytochemical Composition and Therapeutic Potential of Bistorta major Gray: A Review

    Article • January 2023, Springer Science + Business Media

    Petko Denev

  9. Modulation Effect on Tubulin Polymerization, Cytotoxicity and Antioxidant Activity of 1H-Benzimidazole-2-Yl Hydrazones

    Article • Molecules, December 2022, MDPI AG

    Petko Denev

  10. Validation of HPLC Method for Analysis of Gamma-Aminobutyric and Glutamic Acids in Plant Foods and Medicinal Plants

    Article • Molecules, December 2022, MDPI AG

    Petko Denev

  11. A jojoba (Simmondsia chinensis) seed cake extracts express hepatoprotective activity against paracetamol-induced toxicity in rats

    Article • Biomedicine & Pharmacotherapy, September 2022, Elsevier

    Petko Denev

  12. Structural Features and Immunomodulatory Effects of Water-Extractable Polysaccharides from Macrolepiota procera (Scop.) Singer

    Article • Journal of Fungi, August 2022, MDPI AG

    Ondrej Vasicek, Tsvetelina Batsalova, Petko Denev

  13. Structural characterization of polysaccharides from Geranium sanguineum L. and their immunomodulatory effects in response to inflammatory agents

    Article • Journal of Ethnopharmacology, August 2022, Elsevier

    Petko Denev

  14. Modelling of Malt Mixture for the Production of Wort with Increased Biological Value

    Article • Beverages, July 2022, MDPI AG

    Petko Denev

  15. Nutrient Constituents, Bioactive Phytochemicals, and Antioxidant Properties of Service Tree (Sorbus domestica L.) Fruits

    Article • Plants, July 2022, MDPI AG

    Petko Denev

  16. Aronia melanocarpa Fruit Juice Modulates ACE2 Immunoexpression and Diminishes Age-Related Remodeling of Coronary Arteries in Rats

    Article • Foods, April 2022, MDPI AG

    Petko Denev

  17. Influence of Gamma Irradiation on Different Phytochemical Constituents of Dried Rose Hip (Rosa canina L.) Fruits

    Article • Molecules, March 2022, MDPI AG

    Petko Denev

  18. Addition of Medicinal Plants Increases Antioxidant Activity, Color, and Anthocyanin Stability of Black Chokeberry (Aronia melanocarpa) Functional Beverages

    Article • Plants, January 2022, MDPI AG

    Petko Denev

  19. Immunomodulating polysaccharide complexes and antioxidant metabolites from Anabaena laxa, Oscillatoria limosa and Phormidesmis molle

    Article • Algal Research, December 2021, Elsevier

    Tsvetelina Batsalova, Petko Denev

  20. Utilization of Industrial Rosa damascena Mill. By-products and Cocoa Pod Husks as Natural Preservatives in Muffins

    Article • Periodica Polytechnica Chemical Engineering, November 2021, Periodica Polytechnica Budapest University of Technology and Economics

    Petko Denev

  21. Waste Rose Flower and Lavender Straw Biomass—An Innovative Lignocellulose Feedstock for Mycelium Bio-Materials Development Using Newly Isolated Ganoderma resinaceum GA1M

    Article • Journal of Fungi, October 2021, MDPI AG

    Petko Denev

  22. MANAGING QUALITY OF AROMATIZED WINE PREPARED BY COFERMENTATION OF GRAPE MUST AND BY-PRODUCTS OF ESSENTIAL ROSE OIL INDUSTRY

    Article • Carpathian Journal of Food Science and Technology, September 2021, Technical University of Cluj Napoca

    Petko Denev

  23. Optimization of microwave assisted extraction of simmondsins and polyphenols from Jojoba (Simmondsia chinensis) seed cake using Box-Behnken statistical design

    Article • Food Chemistry, September 2021, Elsevier

    Petko Denev

  24. Study of the influence of rootstocks on fruit flesh quality of three plum cultivars

    Article • Acta Horticulturae, September 2021, International Society for Horticultural Science (ISHS)

    Petko Denev

  25. Black Chokeberry (Aronia melanocarpa) Functional Beverages Increase HDL-Cholesterol Levels in Aging Rats

    Article • Foods, July 2021, MDPI AG

    Petko Denev

  26. Comparative Study on Phenolic Content and Antioxidant Activity of Different Malt Types

    Article • Antioxidants, July 2021, MDPI AG

    Petko Denev

  27. Incorporation of quinoa seeds accessions in instant noodles improves their textural and quality characteristics

    Article • Journal of Food Science and Technology, July 2021, Springer Science + Business Media

    Petko Denev

  28. Phytochemical Composition, Antioxidant and Antimicrobial Activity of the Balkan Endemic Micromeria frivaldszkyana (Degen) Velen. (Lamiaceae)

    Article • Plants, April 2021, MDPI AG

    Petko Denev

  29. Green approach to obtain extracts of seven edible flowers

    Article • IOP Conference Series Materials Science and Engineering, January 2021, Institute of Physics Publishing

    Petko Denev

  30. Metabolite Profile and Antioxidant Activity of Some Species of Genus Scutellaria Growing in Bulgaria

    Article • Plants, December 2020, MDPI AG

    Petko Denev

  31. Aronia melanocarpa (Michx.) Elliot fruit juice reveals neuroprotective effect and improves cognitive and locomotor functions of aged rats

    Article • Food and Chemical Toxicology, October 2019, Elsevier

    Petko Denev

  32. Protective effects of Aronia melanocarpa juices either alone or combined with extracts from Rosa canina or Alchemilla vulgaris in a rat model of indomethacin-induced gastric ulcers

    Article • Food and Chemical Toxicology, October 2019, Elsevier

    Petko Denev

  33. The ancient Thracian endemic plant Haberlea rhodopensis Friv. and related species: A review

    Article • Journal of Ethnopharmacology, October 2019, Elsevier

    Petko Denev

  34. Phytochemical composition and antioxidant activity of 63 Balkan pepper (Capsicum annuum L.) accessions

    Article • Journal of Food Measurement & Characterization, June 2019, Springer Science + Business Media

    Petko Denev

  35. Black chokeberry (Aronia melanocarpa) polyphenols reveal different antioxidant, antimicrobial and neutrophil-modulating activities

    Article • Food Chemistry, June 2019, Elsevier

    Petko Denev

  36. Rosa damascena waste mediated synthesis of silver nanoparticles: Characteristics and application for an electrochemical sensing of hydrogen peroxide and vanillin

    Article • Materials Chemistry and Physics, June 2019, Elsevier

    Petko Denev

  37. Co-pigmentation of black chokeberry (Aronia melanocarpa) anthocyanins with phenolic co-pigments and herbal extracts

    Article • Food Chemistry, May 2019, Elsevier

    Petko Denev

  38. Black Chokeberry (Aronia melanocarpa (Michx.) Elliot) Fruits and Functional Drinks Differ Significantly in Their Chemical Composition and Antioxidant Activity

    Article • Journal of Chemistry, November 2018, Hindawi Publishing Corporation

    Petko Denev

  39. Effect of lavender (Lavandula angustifolia) and melissa (Melissa Officinalis) waste on quality and shelf life of bread

    Article • Food Chemistry, July 2018, Elsevier

    Petko Denev

  40. Acidic polysaccharide complexes from purslane, silver linden and lavender stimulate Peyer’s patch immune cells through innate and adaptive mechanisms

    Article • International Journal of Biological Macromolecules, December 2017, Elsevier

    Tsvetelina Batsalova, Ondrej Vasicek, Petko Denev

  41. Erratum to “The common lavender (Lavandula angustifolia Mill.) pectic polysaccharides modulate phagocytic leukocytes and intestinal Peyer’s patch cells” [Carbohydr. Polym. 174 (2017) 948–959]

    Article • Carbohydrate Polymers, December 2017, Elsevier

    Ondrej Vasicek, Petko Denev

  42. Tilia tomentosa pectins exhibit dual mode of action on phagocytes as β-glucuronic acid monomers are abundant in their rhamnogalacturonans I

    Article • Carbohydrate Polymers, November 2017, Elsevier

    Tsvetelina Batsalova, Ondrej Vasicek, Petko Denev

  43. The common lavender ( Lavandula angustifolia Mill.) pectic polysaccharides modulate phagocytic leukocytes and intestinal Peyer’s patch cells

    Article • Carbohydrate Polymers, October 2017, Elsevier

    Ondrej Vasicek, Petko Denev

  44. Combined recovery of polysaccharides and polyphenols from Rosa damascena wastes

    Article • Industrial Crops and Products, June 2017, Elsevier

    Petko Denev

  45. Antioxidant potential of curcumin-related compounds studied by chemiluminescence kinetics, chain-breaking efficiencies, scavenging activity (ORAC) and DFT calculations

    Article • Beilstein Journal of Organic Chemistry, August 2015, Beilstein Institut

    PhD Silvia Emilova Angelova, Petko Denev

  46. Antiatherogenic and Cardioprotective Effects of Black Chokeberry (Aronia melanocarpa) Juice in Aging Rats

    Article • Evidence-based Complementary and Alternative Medicine, January 2015, Hindawi Publishing Corporation

    Petko Denev

  47. Flavonoid glycosides profiling in dwarf elder fruits (Sambucus ebulus L.) and evaluation of their antioxidant and anti-herpes simplex activities

    Article • Industrial Crops and Products, January 2015, Elsevier

    Petko Denev

  48. Biological activities of selected polyphenol-rich fruits related to immunity and gastrointestinal health

    Article • Food Chemistry, August 2014, Elsevier

    Ondrej Vasicek, Petko Denev

  49. The effects of biologically active substances in medicinal plants on the metabolic activity of neutrophils

    Article • Phytochemistry Reviews, February 2014, Springer Science + Business Media

    Ondrej Vasicek, Petko Denev

  50. Effects of Pectic Polysaccharides Isolated from Leek on the Production of Reactive Oxygen and Nitrogen Species by Phagocytes

    Article • Journal of Medicinal Food, August 2013, Mary Ann Liebert Inc

    Petko Denev

  51. Bioavailability and Antioxidant Activity of Black Chokeberry (Aronia melanocarpa) Polyphenols: in vitro and in vivo Evidences and Possible Mechanisms of Action: A Review

    Article • Comprehensive Reviews in Food Science and Food Safety, August 2012, Wiley

    Petko Denev

  52. Electrochemical Sensing of Total Antioxidant Capacity and Polyphenol Content in Wine Samples Using Amperometry Online-Coupled with Microdialysis

    Article • Journal of Agricultural and Food Chemistry, August 2012, American Chemical Society (ACS)

    Petko Denev

  53. Inhibition of lung tumor development by berry extracts in mice exposed to cigarette smoke

    Article • International Journal of Cancer, March 2012, Wiley

    Petko Denev

  54. Flavonoids Inhibit the Respiratory Burst of Neutrophils in Mammals

    Article • Oxidative Medicine and Cellular Longevity, January 2012, Hindawi Publishing Corporation

    Ondrej Vasicek, Petko Denev

  55. Antioxidant and cholinesterases inhibitory activities of Verbascum xanthophoeniceum Griseb. and its phenylethanoid glycosides

    Article • Food Chemistry, September 2011, Elsevier

    Petko Denev

  56. Solid-phase extraction of berries’ anthocyanins and evaluation of their antioxidative properties

    Article • Food Chemistry, December 2010, Elsevier

    Petko Denev

  57. Antioxidant activity of devil’s claw cell biomass and its active constituents

    Article • Food Chemistry, August 2010, Elsevier

    Petko Denev

  58. Different methods for control and comparison of the antioxidant properties of vegetables

    Article • Food Control, April 2010, Elsevier

    Petko Denev

  59. Antioxidant Activity and Phenolic Content of Betalain Extracts from Intact Plants and Hairy Root Cultures of the Red Beetroot Beta vulgaris cv. Detroit Dark Red

    Article • Plant Foods for Human Nutrition, February 2010, Springer Science + Business Media

    Dr Vasil G Georgiev, Petko Denev

  60. Antioxidant Activity and Bioactive Constituents of the Aerial Parts ofHarpagophytum ProcumbensPlants

    Article • Biotechnology & Biotechnological Equipment, January 2010, Taylor & Francis

    Petko Denev

  61. Probiotic StrainLactobacillus PlantarumNBIMCC 2415 with Antioxidant Activity as a Starter Culture in the Production of Dried Fermented Meat Products

    Article • Biotechnology & Biotechnological Equipment, January 2010, Taylor & Francis

    Petko Denev

  62. Comparative investigations of the influence of H1-antihistamines on the generation of reactive oxygen species by phagocytes

    Article • Inflammation Research, March 2008, Springer Science + Business Media

    Petko Denev, Dr Lukas Kubala