Teodora Atanasova's research while affiliated with University Of Food Technology - Plovdiv and other places

... [67,86,87] However, one should keep in mind that HFO-1234ze production by synthesis and its low biodegradability could constitute major impediments to its industrial use as a green alternative solvent; [88 -90] more generally, a LCA appears necessary to decide whether or not a liquefied gas may be considered as a green alternative or not for a specific process. [89] Natural extracts obtained through such processes and dedicated to the perfume industry do exist (Butaflors; cinnamon bark, savory and Madonna lily extracts were obtained using R134a, [31,[91][92][93] etc.) but remain marginal nowadays for economic reasons. [62,67] In fact, such technology represents quite an investment: prices of liquefied gases are ranging from 1-2 kE/t (propane, butane, DME) to 17 kE/t (HFO-1234ze) and up to 200 kE/t for HFO-1234yf (tax free prices, INVENTEC Performance Chemicals, 2016). ...

... The average extracted oil content in flowers is 0.035% but varies from 0.03 to 0.05%. They typically have a yellow to yellow-green color and characteristic odor [76,77]. ...

... This can be explained by Teneva et al. [9], that hydrodistillation method of extraction is less likely to introduce external substances, such as solvents, which could potentially dilute the natural antioxidants present in the oils. ...

... Additionally, Singh et al. [75] identified that the M. × piperita oil is more effective against Gram-positive than Gram-negative bacteria. Similarly, Gochev et al. [84] evaluated the antimicrobial activity of Bulgarian peppermint oil and illustrated that peppermint oils are more effective against Gram-positive bacteria than Gram-negative bacteria. This might be due to the existence of lipopolysaccharides in the outer membrane of Gram-negative bacteria, which could enhance their resistance to antibacterial substances [82]. ...

... Recent studies have described the capacity of cardamom to suppress bacterial activity, especially its essential oil against methicillin-resistant Staphylococcus aureus (MRSA) [122,141]. However, currently the mechanism of action that cardamom exerts on MRSA biofilm is unclear. ...

... The above-mentioned results suggest that strong antimicrobial activity of chamomile oil against the tested microorganisms in the cosmetic samples pave the way for possible using it as a natural cosmetic preservative. Current results agree with those obtained by (Wanner et al., 2009& Schmidt et al., 2009) who studied the antimicrobial activity of an essential chamomile oil against various strains of Gram positive bacteria (Staphylococcus aureus and Enterococcus faecalis), Gram negative bacteria (Escherichia coli, Psedumonas aeruginosa, P. vulgaris. Klebsiella pneumonia and Salmonella spp.) and yeast (Candida albicans) and they reported that chamomile oil showed high antimicrobial activity against all strains of the tested microbes. ...

... [93] . (Gochev et al., 2012) [32] . a-terpineol (9.8%), A-terpinyl acetate (44.3%), linalool (8.6%), and 1,8-cineole (10.7%), were found to be the primary components of Gorakhpur cardamom oil. ...

... [67,86,87] However, one should keep in mind that HFO-1234ze production by synthesis and its low biodegradability could constitute major impediments to its industrial use as a green alternative solvent; [88 -90] more generally, a LCA appears necessary to decide whether or not a liquefied gas may be considered as a green alternative or not for a specific process. [89] Natural extracts obtained through such processes and dedicated to the perfume industry do exist (Butaflors; cinnamon bark, savory and Madonna lily extracts were obtained using R134a, [31,[91][92][93] etc.) but remain marginal nowadays for economic reasons. [62,67] In fact, such technology represents quite an investment: prices of liquefied gases are ranging from 1-2 kE/t (propane, butane, DME) to 17 kE/t (HFO-1234ze) and up to 200 kE/t for HFO-1234yf (tax free prices, INVENTEC Performance Chemicals, 2016). ...

... The antioxidant used was dill extract in an amount of 0.003% (v/v) with known characteristics, dill extract by Ekstraktum LTD, Plovdiv, Bulgaria whose main components of the chemical composition were: Dcarvone 53.12% (w/w), limonene 37.12% (w/w), dihydrocarvone 2.58% (w/w), p-cymene 0.35% (w/w), γterpinene 0.45% (w/w), etc. and high antioxidant activity (Nenov et al., 2013). ...

... In addition to α-terpinyl acetate, other terpenoids such as α-terpineol, linalool, linalyl acetate, and geraniol impart a sweet flavour that counterbalances the camphorated-sharp touch of 1,8-cineol. The chemical composition of small cardamom seeds essential oil extracted by HD in this study was found to be in good accordance with previous studies in which the 1,8-cineol and αterpinyl acetate were the major components [24][25]. ...