Publications by authors named "Yulian Tumbarski"

The current study focuses on evaluating the enzyme inhibition (acetylcholinesterase, α-amylase, α-glucosidase, pancreatin lipase), antioxidant, and antimicrobial activities of the "Modesto" apricot, "Stanley" plum, and their hybrid the "Stendesto" plum-apricot. The "Stendesto" is the only successful plum-apricot hybrid in Bulgaria. A spectrophotometric approach was used to evaluate the antioxidant activity following four complementary assays (DPPH, ABTS, FRAP, and CUPRAC).

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Article Synopsis
  • There is currently no existing research on the L. plant species found in Bulgaria, prompting this study to analyze its leaves and pulp for metabolic, elemental, and bioactive properties.
  • The pulp was rich in fructose and amino acids, while both leaves and pulp contained various essential fatty acids and minerals, with potassium and magnesium being most abundant.
  • The study found that leaf extracts demonstrated superior antioxidant and anti-inflammatory effects, as well as notable antibacterial activity, suggesting potential uses in nutritional and cosmetic products.
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Anti-inflammatory drugs are used to relieve pain, fever, and inflammation while protecting the cardiovascular system. However, the side effects of currently available medications have limited their usage. Due to these adverse effects, there is a significant need for new drugs.

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The present study examined the physicochemical, antioxidant, and antimicrobial properties of three medicinal plants: thyme ( Borbás ex Velen), cotton thistle ( L.), and hawthorn fruit ( Jacq.) from the Western Rhodope Mountains, Bulgaria.

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The present article focuses on the synthesis and biological evaluation of a novel anthranilic acid hybrid and its diamides as antispasmodics. Methods: Due to the predicted in silico methods spasmolytic activity, we synthesized a hybrid molecule of anthranilic acid and 2-(3-chlorophenyl)ethylamine. The obtained hybrid was then applied in acylation with different acyl chlorides.

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Anticoagulants prevent the blood from developing the coagulation process, which is the primary cause of death in thromboembolic illnesses. Phenindione (PID) is a well-known anticoagulant that is rarely employed because it totally prevents coagulation, which can be a life-threatening complication. The goal of the current study is to synthesize drug-loaded Ag NPs to slow down the coagulation process.

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Propolis is a natural mixture of resins, wax, and pollen from plant buds and flowers, enriched with enzymes and bee saliva. It also contains various essential oils, vitamins, mineral salts, trace elements, hormones, and ferments. It has been found that propolis possesses antimicrobial, antiviral, and anti-inflammatory properties.

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Article Synopsis
  • Irritable bowel syndrome (IBS) is a complex digestive disorder that requires multi-faceted treatment approaches, including lifestyle changes and various medications.
  • The study involves synthesizing and evaluating new compounds, focusing on their potential as antispasmodics, with assessments on their pharmacodynamics and biological effects.
  • Results indicate that one compound, 3-methyl-1-phenylbutan-2-amine, may be an effective long-term oral therapy for IBS, showing beneficial effects without cytotoxicity to certain cancer cell lines.*
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Sustainability, becoming essential for food processing and technology, sets goals for the characterization of resources considered as food waste. In this work, information about the GC-MS metabolites of peach peels was provided as a tool that can shed more light on the studied biological activities. In addition, distribution patterns and contribution of the chemical profile and free and bound phenolic compounds as antioxidant, antimicrobial, and enzymatic clusters in peach peels of different varieties of Bulgarian origin were studied.

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Bacteriocins are a large group of antimicrobial compounds that are synthesized by representatives of the genus and lactic acid bacteria. They are used extensively in the food industry as biopreservatives. Incorporated in the composition of edible coatings, bacteriocins can reduce microbial growth and decay incidence in perishable fruits, thus improving product shelf-life and commercial appearance.

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Members of the bacterial genus are known as producers of a broad spectrum of antibiotic compounds of proteinaceous nature that possess inhibitory activity against different saprophytic and pathogenic microorganisms. In the current research, a peptide synthesized by strain BM47, previously isolated from a natural thermal spring in Bulgaria, was identified and characterized as a bacteriocin. antimicrobial screening of the crude bacteriocin substance of BM47 showed activity against the plant pathogenic fungi , , sp.

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