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Terpenes are naturally occurring substances produced by a wide variety of plants and animals. A broad range of the biological properties of terpenoids is described, including cancer chemopreventive effects, antimicrobial, antifungal, antiviral, antihyperglycemic, anti-inflammatory, and antiparasitic activities. Terpenes are also presented as skin… (More)
Of 98 strains of moulds, isolated from arctic soils, Mortierella minutissima 01, grew the best on agar plates with limonene vapor. Perillyl alcohol and perillic acid were the main products of limonene biotransformation. Maximal yield of perillyl alcohol (125 mg l(-1)) occurred in medium containing 0.8% substrate, at 15 degrees C, pH 6 and after 4-5 d.
The psychrotrophic fungus Chrysosporium pannorum A-1 is reported for the first time as a novel biocatalyst for O2-promoted oxidation of α-pinene. GC–MS analysis indicated that the main products of the reaction were compounds of a high commercial value, verbenol (1) and verbenone (2). Exponentially growing cells (days 2–3) were about twice as active as cells… (More)
New glycidyl methacrylate copolymers containing different numbers of epoxy groups were synthesized and used to develop effective procedures for inulinase immobilization. The beneficial characteristics of the carriers included a high degree of crosslinking, stability at ambient temperature, an appropriate surface, and the presence of reactive epoxy groups.… (More)
A novel method for enzymatic biotransformation of limonene to carvone has been developed. It involves addition glucose oxidase and peroxidase to the biotransformation medium. Some factors affecting biotransformation yield were investigated. Maximal yield of carvone occurred in the medium containing 1.5% substrate, at 50 degrees C and pH 7.0.
Improvement of the biosynthetic capabilities of industrially relevant microbes to produce desired metabolites in higher quantities is one of the important topics of modern biotechnology. In this article, different strategies of improvement of mutated microbial strains are briefly described. This is followed by the first comprehensive review of the… (More)
A porphyrin-based photoexcited system has been revealed to be an efficient catalyst for d-limonene biotransformation under mild conditions and using molecular oxygen or/and H2O2 as oxidants. The influence of the oxidant, the wavelength of visible light, and the photoexcitation time on the catalytic system were studied for limonene oxidation with… (More)
CONTEXT Biotransformation systems are profitable tools for structural modification of bioactive natural compounds into valuable biologically active terpenoids. OBJECTIVE This study determines the biological effect of (R)-(+)-limonene and (-)-α-pinene, and their oxygenated derivatives, (a) perillyl alcohol and (S)-(+)- and (R)-(-)-carvone enantiomers and… (More)
Three different Fusarium culmorum strains having a pathogenic, a deleterious (deleterious rhizosphere microorganism), or a promoting (plant growth promoting fungus) effect on plant growth were studied for their ability to synthesize in vitro the phytohormones indoleacetic acid (IAA), gibberellic acid (GA), and ethylene. All the phytohormones tested were… (More)