Lemon-scented

A lemon scent pumped through the air-conditioning system of a Japanese office building increased workers productivity. 

Lemon-scented eucalyptus Eucalyptus citrio-dora Hook. CitroneUal (75)... 

Eucalyptus (lemon-scented) Eucalyptus citriodora (Myrtaceae) fresh leaves... 

The main essential oil-producing species of Eucalyptus include Eucalyptus globulus, also called blue gum eucalyptus Eucalyptus dives, known as broadleaved peppermint eucalyptus Eucalyptus citriodora, known as lemon-scented eucalyptus Eucalyptus radiata, known as narrow-leaved peppermint gum Eucalyptus smithii, known as gully gum and Eucalyptus polybractea, known as blue mallee. Within each species there are many subspecies and chemo-types. This illustrates a very complex situation, producing essential oils with varying compositions and properties. 

Non-cyclic monoterpenes are unsaturated, pleasant-smelling, C]q aliphatic compounds including aldehydes such as citronellal and citral (lemon-scented) the sweet-rose... 

Douss (France) Palmolive formula, pH neutral, helps eliminate persistent odors from hands. Leaves a fresh lemon scent... 

Lemon thyme A lemon-scented variety (Thymus serpylum vulgarut) of the wild thyme. 

The majority of the processes presented in Table 2 involve combustion (e.g., burning candles) or the heating of a surface (e.g., electric element of a stove). The UFP from air fresheners and cleaners are the result of nucleation due to secondary chemical reactions with ozone. These secondary reactions are most commonly observed with pinene and limonene (and other terpenes) containing compounds found in pine and lemon scented cleaning products (Nazaroff and Weschler 2004). 

Other distinguishing features Crushed leaves have a lemon scent. 

Few well-documented cases of irritant dermatitis from fragrance materials can be found in the literature (Rothenborg et al. 1977). A large number of people broke out after the introduction of a lemon-scented detergent in a hospital. The temperature-dependent, primary irritant reaction from the lemon perfume was due to the chemical, citral (Rothenborg et al. 1977). 

Apart from its pleasant aroma, citral is valued for its sedative, antiviral and antimicrobial properties. Citral-rich oils derived from lemon grass and lemon-scented tea tree were shown to inhibit Candida albicans at more than four times the rate (zone of inhibition) of tea tree oil (Williams and Home 1995). However, many aldehydes are irritants, causing skin sensitivity in some people thereby restricting their use in topical applications. 

Dill, India Elemi Eucalyptus Eucalyptus, lemon-scented Fennel bitter... 

Rozzi, N. L., W. Phippen, J. E. Simon, and R. K. Singh, 2002. Supercritical uid extraction of essential oil components from lemon-scented botanicals. LWT—FoodSet TechnoL, 35 319-324. 

When 2,6-dimethylhepta-1,5-diene or 2,6-dimethylocta-l,5-diene was subjected to the hydroformylation with an unmodified rhodium catalyst under rather severe conditions, racemic citronellal (R = Me) was formed with a yield of 74% (Scheme 6.22) [96]. Citronellal confers citronella oil its distinctive lemon scent. On the industrial scale, (S)-citronellal is prepared as intermediate of the synthesis... 

Menthol (8-19) is a common cooling substance used in food products. The effect of coolness evoked through stimulation of the somatosensory system can be produced by several naturally occurring molecules, mainly derived from terpenes and sesquiterpenes. Such a molecule is (-)-isopulegol (8-319), occiuring, for example, in the essential oil of Australian lemon-scented gum (Eucalyptus citriodora, Myrtaceae) trees, which has 20% of the cooling... 

This tree is the Lemon-scented Iron-bark of Queensland, the essential oil being of particular interest, as it differs entirely from ordinary eucalyptus oils. The oil has the following characters —... 

The leaves of two other general varieties, either anise scented or lemon scented, have been reported to yield volatile oils with quite different proportions of the above components. The anise scented variety contains methyleugenol (43%) and methylchavicol (32%) as the major components, and the lemon scented variety contains mostly citral (>80%). The main constituents of the essential oil of the leaves of P. racemosa var. terebinthina (Burret) L. R. Landrum are 4-methoxy eugenol (12.6%), a-terpineol (20%), and a-terpineol acetate (27%), while in the essential oil of P. racemosa var. grisea (Kiaersk.) Fosberg, the major constituents are 4-methoxy eugenol (4.5%) and 4-meth-oxy-isoeugenol (75.2%). The leaves also contain abietic acid, a diterpene. Lupeol, a triterpene, was isolated from the leaves of P. racemosa var. ozua (Urban Ekman) L. R. Landrum. ... 

Oil of maijoram contains a pleasant, lemon-scented substance, CioHie (compound G). Upon ozonolysis, G forms two products. One of them, H, has the formula C8H14O2 and can be independently synthesized in the following way. 

Leptospermum liversidgei Lemon-scented tea tree Insect repellent... 

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