The present study describes the isolation of microorganisms capable of producing alpha-pinene from beta-pinene. 24 (15 fungi, 9 bacteria) microorganisms were isolated from galbanum, gum and soil, were screened for their ability to transform beta-pinene to alpha-pinene. Biotransformation products were extracted with n-hexan and analyzed by gas chromatography. One microorganism (bacterial strain) were found. The biotransformation medium involved, phosphate buffer pH 6, 100 microL beta-pinene, 1 g biomass of microorganism, 37 degrees C, 150 rpm and 22 h. The experiments were performed in conical flasks. The optimum cell growth were obtained when 30 g L(-1) glycerin applied. The optimum conversion beta-pinene to alpha-pinene was obtained when 20 g L(-1) glycerin applied as carbon source for bacterial strain.
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http://dx.doi.org/10.3923/pjbs.2007.1685.1690 | DOI Listing |
Plants (Basel)
December 2024
Departamento de Química, Universidad Técnica Particular de Loja (UTPL), Calle Paris s/n y Praga, Loja 110107, Ecuador.
This study presents the first chemical and enantioselective analyses of essential oils (EOs) derived from the leaves of two endemic species, Cuatrec. and (Kunth) Cass., from Loja, Ecuador.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Department of Science and Engineering of Oxide Materials and Nanomaterials, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania.
(NS) is an annual herb belonging to the Ranunculaceae family, also known as black cumin or black seed. This plant has been used since ancient times due to its therapeutic properties and has proven effective in gastrointestinal, respiratory, cardiovascular, infectious, and inflammatory conditions. In this review, the aim is to highlight the therapeutic effects of the plant known in Arab countries as "the plant that cures any disease", which are provided by the phytochemical compounds in its composition, such as thymoquinone, p-cymene, α-thujene, longifolene, β-pinene, α-pinene, and carvacrol.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Floriculture, Ornamental Horticulture and Garden Design, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria, 21545, Egypt.
Natural extracts as biostimulants have the potential to enhance the productivity and growth of many medicinal and aromatic plants. This study aimed to enhance the growth, and essential oil (EO) content, as well as composition of Lavandula latifolia Medik. by using Malva parviflora L.
View Article and Find Full Text PDFFood Chem
December 2024
Laboratory of Brewing Microbiology and Applied Enzymology, School of Biotechnology, Jiangnan University, 1800 Lihu Ave, Wuxi 214122, Jiangsu, China.
Baijiu aged in Jiuhai container will produce a special Jiuhai-aroma, which has not been fully studied. In this study, check-all-that-apply method and quantitative descriptive analysis were used to characterize Jiuhai-aroma, and it was found that the aroma characteristics of herbs, spicy, cut hay and woody were prominent in Baijiu aged in Jiuhai container. According to the results of GC-O and quantification, 71 odorants were identified in Jiuhai sample.
View Article and Find Full Text PDFRapid Commun Mass Spectrom
March 2025
Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Canada.
Rationale: In electrospray ionization and atmospheric pressure chemical ionization, the protonation site directly guides the ion's dissociation. But what if the site of protonation is ambiguous? In this study, we explored the unimolecular reactions of protonated α- and β-pinene ions with a combination of tandem mass spectrometry and theory. Each has multiple potential protonation sites that influence their chemistry.
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