Heterologous expression of 2-methylisoborneol / 2 methylenebornane biosynthesis genes in Escherichia coli yields novel C11-terpenes. [PDF]
PLoS ONE, 2018 The structural diversity of terpenoids is limited by the isoprene rule which states that all primary terpene synthase products derive from methyl-branched building blocks with five carbon atoms.
Max J Kschowak +4 more
doaj +2 more sources
Fast and Sensitive Measurement of Off‐Flavors in Recirculating Aquaculture Systems [PDF]
Rapid Communications in Mass Spectrometry, Volume 40, Issue 15, 15 August 2026.ABSTRACT Rationale Geosmin and 2‐methylisoborneol (2‐MIB) are odor‐active compounds responsible for earthy off‐flavors in fish, creating significant quality concerns in recirculating aquaculture systems (RAS). Their extremely low odor thresholds make rapid and highly sensitive detection essential for maintaining product quality and consumer acceptance ...
Pedro Martínez Noguera +5 more
wiley +2 more sources
Biosynthesis of the Fully Saturated C16 Homosesquiterpene Descartane Through Deprotonation With Cyclopropanation [PDF]
Angewandte Chemie International Edition, Volume 65, Issue 38, 14 September 2026.A non‐canonical C16 sesquiterpene synthase from Morganella morganii produces the unusual scaffold descartane. Its cyclisation mechanism was rationalised by isotopic labelling experiments and DFT calculations. Site‐directed mutagenesis altered enzyme function, resulting in alternative products, including voltairene, which requires a different ...
Kexin Yang +4 more
wiley +2 more sources
Chemical Engineering Journal Advances, 2023 Lakes and rivers are important sources of potable water in many countries, but taste-and-odour compounds (T&O) such as geosmin (GSM) and 2-methylisoborneol (2-MIB) may affect the aesthetic water quality and require high-cost treatment.
Hannah M. Franklin +5 more
doaj +2 more sources
Geographical and Seasonal Patterns of Geosmin and 2-Methylisoborneol in Environmental Water in Jiangsu Province of China [PDF]
Journal of Analytical Methods in Chemistry, 2014 This study was conducted to obtain the basic data of two common odorants—geosmin and 2-methylisoborneol (GSM and 2-MIB)—in environmental water. More specifically, the headspace solid-phase microextraction coupled to gas chromatography mass spectrometry ...
Zhen Ding +5 more
doaj +2 more sources
Determination of Geosmin and 2-Methylisoborneol and Associated Microbial Composition in Rainbow Trout Aquaculture Systems for Human Consumption [PDF]
FoodsThis study investigated the seasonal and spatial dynamics of off-flavour compounds—geosmin and 2-methylisoborneol (2-MIB)—in an intensive rainbow trout (Oncorhynchus mykiss) aquaculture system for human consumption in western Spain. Weekly water and fish
Juan José Córdoba-Granados +5 more
doaj +2 more sources
Growth and 2-methylisoborneol production by the cyanobacterium Phormidium LM689
Water Science and Technology, 1995 Growth and production of 2-methylisoborneol (MIB) was characterized in the cyanobacterium Phormidium sp. LM689 isolated from Lake Mathews, California, USA. The effects of: 1) uptake of several organic amendments related to pigment biosynthesis, 2) Fe availability, and 3) copper algicides were examined.
C. M. Soliman +2 more
openaire +2 more sources
Biochemical and Ecological Control of Geosmin and 2-Methylisoborneol in Source Waters [PDF]
Applied and Environmental Microbiology, 2007 The majority of all biologically caused taste-and-odor outbreaks in drinking water characterized worldwide are caused by microbial production of (−)-geosmin [(−)-(4 S ,4a S ,8a R )-4,8a-dimethyloctahydronaphthalen-4a-ol] and (−)-2-methylisoborneol (2-MIB) {(1 R -exo)-1,2,7,7 ...
Jüttner, Friedrich, Watson, Susan B.
openaire +5 more sources
Near-Infrared Spectroscopy Detection of Off-Flavor Compounds in Tench (Tinca tinca) After Depuration in Clean Water [PDF]
FoodsTench (Tinca tinca) is a warm-temperate, freshwater benthic fish with often unpleasant odors and flavors which result from its natural habitat. These characteristics may deter consumers; therefore, their removal would enhance the fish’s palatability and ...
Daniel Martín-Vertedor +4 more
doaj +2 more sources
Degradation of 2-Methylisoborneol by Aquatic Bacteria [PDF]
Applied and Environmental Microbiology, 1988 2-Methylisoborneol (MIB) is a musty- or muddy-smelling compound which occurs in some natural waters and which is difficult to remove by conventional water treatment methods. Bacterial degradation of MIB was examined in batch culture experiments.
G, Izaguirre, R L, Wolfe, E G, Means
openaire +2 more sources