Search Results - "Valtcho D. Zheljazkov"

Valorization of CBD-hemp through distillation to provide essential oil and improved cannabinoids profile by Zheljazkov, Valtcho D., Maggi, Filippo

“…Hemp ( Cannabis sativa L.) synthesizes and accumulates a number of secondary metabolites such as terpenes and cannabinoids. They are mostly deposited as resin…”
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Industrial Hemp ( Cannabis sativa subsp. sativa ) as an Emerging Source for Value-Added Functional Food Ingredients and Nutraceuticals by Rupasinghe, H P Vasantha, Davis, Amy, Kumar, Shanthanu K, Murray, Beth, Zheljazkov, Valtcho D

“…Industrial hemp ( L., Cannabaceae) is an ancient cultivated plant originating from Central Asia and historically has been a multi-use crop valued for its…”
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Chemical Composition and Antimicrobial Activity of Laurus nobilis L. Essential Oils from Bulgaria by Fidan, Hafize, Stefanova, Galina, Kostova, Iliana, Stankov, Stanko, Damyanova, Stanka, Stoyanova, Albena, Zheljazkov, Valtcho D

“…Laurel, L. is an evergreen plant belonging to the Lauraceae family, native to Southern Europe and the Mediterranean area. This is the first report on the…”
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Hydrodistillation Extraction Kinetics Regression Models for Essential Oil Yield and Composition in Juniperus virginiana , J. excelsa , and J. sabina by B Semerdjieva, Ivanka, Shiwakoti, Santosh, L Cantrell, Charles, D Zheljazkov, Valtcho, Astatkie, Tess, Schlegel, Vicki, Radoukova, Tzenka

“…The chemical profile and antioxidant capacity of , , and essential oil (EO) fractions as a function of time was the subject of this study. The hypothesis was…”
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Industrial, CBD, and Wild Hemp: How Different Are Their Essential Oil Profile and Antimicrobial Activity? by Zheljazkov, Valtcho D, Sikora, Vladimir, Dincheva, Ivayla, Kačániová, Miroslava, Astatkie, Tess, Semerdjieva, Ivanka B, Latkovic, Dragana

“…Hemp ( L.) is currently one of the most controversial and promising crops. This study compared nine wild hemp ( spp. V.) accessions with 13 registered…”
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Biological Activity of Essential Oils of Four Juniper Species and Their Potential as Biopesticides by Semerdjieva, Ivanka, Zheljazkov, Valtcho D, Radoukova, Tzenka, Dincheva, Ivayla, Piperkova, Neshka, Maneva, Vasilina, Astatkie, Tess, Kačániová, Miroslava

“…The objective of this study was to assess the biological activity of essential oils (EOs) of four species obtained via two different distillation methods and…”
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Grinding and Fractionation during Distillation Alter Hemp Essential Oil Profile and Its Antimicrobial Activity by Zheljazkov, Valtcho D, Sikora, Vladimir, Semerdjieva, Ivanka B, Kačániová, Miroslava, Astatkie, Tess, Dincheva, Ivayla

“…The hypothesis of this study was that we can modify the essential oil (EO) profile of hemp ( L.) and obtain fractions with differential composition and…”
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Industrial Hemp (Cannabis sativa L.) Agronomy and Utilization: A Review by Visković, Jelena, Zheljazkov, Valtcho D., Sikora, Vladimir, Noller, Jay, Latković, Dragana, Ocamb, Cynthia M., Koren, Anamarija

“…Currently, there are increased interests in growing grain and fiber hemp (Cannabis sativa L.) as well as in large-scale hemp products. Cannabis has been…”
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Carotenoid-Related Volatile Compounds of Tobacco ( Nicotiana tabacum L.) Essential Oils by Popova, Venelina, Ivanova, Tanya, Prokopov, Tsvetko, Nikolova, Milena, Stoyanova, Albena, Zheljazkov, Valtcho D

“…Tobacco ( L.) aroma is an important attribute of tobacco quality and is influenced by a variety of minor chemical components, including carotenoid degradation…”
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Chemical profile of Juniperus excelsa M. Bieb. essential oil within and between populations and its weed seed suppression effect by Semerdjieva, Ivanka, Zheljazkov, Valtcho D, Dincheva, Ivayla, Radoukova, Tzenka, Astatkie, Tess, Maneva, Vasilina, Atanasova, Dina, Fidan, Hafize, Stankov, Stanko, Stoyanova, Albena

“…The aims of this study were to (1) establish the intrapopulation and seasonal variation of Juniperus excelsа essential oil (EO); (2) compare the J. excelsa…”
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Essential Oil Composition and Bioactivity of Two Juniper Species from Bulgaria and Slovakia by Zheljazkov, Valtcho D., Cantrell, Charles L., Semerdjieva, Ivanka, Radoukova, Tzenka, Stoyanova, Albena, Maneva, Vasilina, Kačániová, Miroslava, Astatkie, Tess, Borisova, Daniela, Dincheva, Ivayla, Salamon, Ivan

“…Juniperus excelsa M. Bieb and J. sabina L. contain essential oil (EO), while J. sabina also contains podophyllotoxin, which is used as a precursor for…”
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Phytochemical Variability of Essential Oils of Two Balkan Endemic Species: Satureja pilosa Velen. and S. kitaibelii Wierzb. ex Heuff. (Lamiaceae) by Zheljazkov, Valtcho D, Semerdjieva, Ivanka B, Cantrell, Charles L, Astatkie, Tess, Aćimović, Milica

“…and (Lamiaceae) are Balkan endemic plant species, and the composition of their essential oil (EO) is highly variable. The aim of the present study was to…”
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Sequential Elution of Essential Oil Constituents during Steam Distillation of Hops (Humulus lupulus L.) and Influence on Oil Yield and Antimicrobial Activity by Jeliazkova, Ekaterina, Zheljazkov, Valtcho D., Kačániova, Miroslava, Astatkie, Tess, Tekwani, Babu L.

“…The profile and bioactivity of hops (Humulus lupulus L.) essential oil, a complex natural product extracted from cones via steam distillation, depends on…”
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GC-MS Composition and Olfactory Profile of Concretes from the Flowers of Four Nicotiana Species by Popova, Venelina, Ivanova, Tanya, Stoyanova, Albena, Nikolova, Violeta, Hristeva, Tsveta, Zheljazkov, Valtcho D

“…The genus (Solanaceae) includes over 70 species, with a long history of traditional use; many of them are nowadays used in bioengineering, biosynthesis,…”
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Utilization of Nutmeg ( Myristica fragrans Houtt.) Seed Hydrodistillation Time to Produce Essential Oil Fractions with Varied Compositions and Pharmacological Effects by Ibrahim, Mohamed A, Cantrell, Charles L, Jeliazkova, Ekaterina A, Astatkie, Tess, Zheljazkov, Valtcho D

“…The intent of this study was to utilize distillation timeframes (DT) of nutmeg ( ) essential oil (EO) to generate fractions with differential chemical…”
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Macronutrient in soils and wheat from long-term agroexperiments reflects variations in residue and fertilizer inputs by Shiwakoti, Santosh, Zheljazkov, Valtcho D., Gollany, Hero T., Kleber, Markus, Xing, Baoshan, Astatkie, Tess

“…Previous studies in the long-term experiments at Pendleton, OR (USA), were focused on organic matter cycling, but the consequences of land management for…”
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Characterization of Odor-Active Compounds, Polyphenols, and Fatty Acids in Coffee Silverskin by Angeloni, Simone, Scortichini, Serena, Fiorini, Dennis, Sagratini, Gianni, Vittori, Sauro, Neiens, Silva D, Steinhaus, Martin, Zheljazkov, Valtcho D, Maggi, Filippo, Caprioli, Giovanni

“…For the first time the volatile fraction of coffee silverskin has been studied focusing on odor-active compounds detected by gas…”
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Phytochemical and biological investigations on Centranthus kellereri (Stoj., Stef. & T. Georgiev) Stoj. & Stef. and C. ruber (L.) DC. and their potential as new medicinal and ornamental plants by Zheljazkov, Valtcho D., Semerdjieva, Ivanka B., Borisova, Daniela, Yankova-Tsvetkova, Elina, Koleva-Valkova, Lyubka H., Petrova, Galya, Dincheva, Ivayla, Stevens, Fred, Wu, Wenbin, Astatkie, Tess, Ivanova, Tanya, Stoyanova, Albena, Dzhurmanski, Anatoli

“…IntroductionCentranthus kellereri is a Bulgarian endemic plant species, found only in two locations in the world: The Balkans Mountains (Stara Planina), above…”
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Determining the optimum mixture of three essential oils for potato sprout suppression at room temperature storage by Thoma, Jena L, Cantrell, Charles L, Tamang, Prabin, Zheljazkov, Valtcho D

“…As a staple crop, potatoes ( ) play an important role in meeting daily caloric needs. To ensure adequate supplies for year-round consumption, potato quality…”
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Distillation Time as Tool for Improved Antimalarial Activity and Differential Oil Composition of Cumin Seed Oil by Zheljazkov, Valtcho D, Gawde, Archana, Cantrell, Charles L, Astatkie, Tess, Schlegel, Vicki

“…A steam distillation extraction kinetics experiment was conducted to estimate essential oil yield, composition, antimalarial, and antioxidant capacity of cumin…”
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