A detailed study of the distribution of egg masses of Homalodisca vitripennis (Germar) and H. liturata Ball was done across a 2-yr period (2001-2003) on six host plants in southern California (Marsh grapefruit, Lisbon lemon, Washington navel, Dancy tangerine, rough lemon, and jojoba in Riverside; jojoba in Desert Center). The majority of egg masses in Riverside belonged to H. vitripennis (84-10...

Jojoba oil biofuel is a potential alternative to diesel fuel with attractive properties, but its flow behavior under the operating conditions of engine still needs be clarified. In this study, rheological properties jojoba are presented in assessment experimentally evaluate both their behaviors at different temperatures. A Fann-type coaxial cylinder viscometer was employed. The shear stress tes...

BACKGROUND External application of clay facial masks is a cosmetic procedure generally used to reduce skin lesions and to improve overall skin condition. OBJECTIVE Collecting pilot data about self-treatment with clay jojoba oil masks on participants with acne-prone, lesioned skin and acne. METHODS Open, prospective, observational pilot study: Participants received written information, instr...

The oxidative stability indices (OSI) of several vegetable oils were determined at 11O°e. Meadowfoam oil, Limnanthes alba, was found to be the most stable oil with an OSI time of 67.3 h for refined oil and 246.9 h for crude oil. Other oils with good oxidative stabilities were refined high oleic sunflower and crude jojoba oil (Simmondsia chinensis) with OSI times of 49.8 and 34.5 h respectively....

Simmondsin and its analogues, demethyl-, didemethylsimmondsins (DMS/DDMS) and the 2%and 3%-simmondsin ferulates are components isolable from jojoba (Simmondsia chinensis) seed meal. While the parent compound, simmondsin, is reported to exhibit anorexic properties, its demethylated analogues not only lack this behavior, they also have no identifiable market value. To create optimum utilization o...

This study was conducted at Biology Department, Faculty of Science,Taif University, Saudi Arabia to investigate the effect of different salinity concentrations 8.6, 12.9, 17.2, 25.9, 34.5, 51.7, 86.2, 103.4 and 120.7 mM NaCl, beside control treatment (tap water) on growth parameters, leaf measurements and leaf chemical constituents of jojoba (Simmondsiachinensis (Link) Schneider). The results i...

Jojoba liquid wax is a mixture of esters of long-chain fatty acids and fatty alcohols mainly C38:2-C46:2. The oil exhibits excellent emolliency on the skin and, therefore, is a component in many personal care cosmetic formulations. The virgin oil is a component of the seed of the jojoba (Simmondsia chinensis) plant which occurs naturally in the Sonora Desert in the United States and northwester...

Historically, German chamomile (GC) oil has been used for treatment of skin disorders. BALB/c mice were sensitized twice a week with 100 microL of 1% 2,4-dinitrochlorobenzene (DNCB) and challenged twice the following week with 100 microL of 0.2% DNCB for atopic dermatitis induction. Thereafter, 3% GC oil was applied daily (70 microL, 6 times week) on the dorsal skin for 4 weeks. Saline or jojob...

The activity of a wax ester hydrolase in the cotyledons of jojoba (Simmondsia chinensis) seedlings increased drastically during germination, parallel to the development of the gluconeogenic process. The enzyme at its peak of development was obtained in association with the wax body membrane, and its properties were studied. It had an optimal activity at alkaline pH (8.5-9). The apparent K(m) va...