Jojoba, seeds

Salgin, U. 2007. Extraction of jojoba seed oil using supercritical C02-H ethanol mixture in green and high-tech separation process. The Journal of Supercritical Fluids, 39 330-37. 

Jojoba (Buxus chinensis) powder Synonyms Buxus chinensis Jojoba powder Jojoba seed powder Powdered jojoba seed Definition Powder obtained from the ground seeds of jojoba, Buxus chinensis Uses Exfoliant for cosmetics Trade Name Synonyms Jojoba Meal 24/60 [Floratech Am. http //www.floratech.com]. Jojoba Meal 40 [Floratech Am. http //www.floratech.com]. Jojoba Meal 60 [Floratech Am. http //www.floratech.com] Jojoba esters... 

Jojoba powder Jojoba seed powder. See Jojoba (Buxus chinensis) powder Jojoba wax CAS 66625-78-3... 

Surface waxes serve a number of functions usually associated with protection. In plants and insects they prevent desiccation and in birds they serve to waterproof feathers. While a few components present in surface lipids can prevent growth of pathogens, the total surface wax layer certainly functions to prevent microbial entry into the organism. Some surface lipids serve as chemical communicants such as the hydrocarbon sex attractants and kairomone of insects. Although internal waxes are infrequently found in Nature, where they do occur they act as energy storage (e.g. in jojoba seeds or marine organisms). For a fuller review of all aspects of natural waxes refer to Kolattukudy (1976). 

Pollard, M. R., J. B. Ohlrogge, and P. K. Stumpf, Wax ester formation in the developing jojoba seed, in Proceedings of the 3rd International Conference on Joboba, (D. M. Yermanos, ed.), 71-81, International Committee on Jojoba and the Dept, of Botany and Plant Science, University of California Press, Riverside, 1978. 

Extracts of the jojoba seed readily utilize oleoyl-CoA as the precursor in the synthesis of the four components listed above. Surprisingly, these same extracts will just as effectively utilize palmitoyl-CoA, stearoly-CoA, and stearoyl-ACP as substrates for the formation of longer-chain saturated fatty acids and alcohols. However, extensive compositional studies with the wax esters of the jojoba seed reveal the complete absence of saturated alcohols and acids (Miwa, 1971). These results have been interpreted by Pollard et al. 

Thus oil bodies are not simply inert storage organelles for reserve lipid but contain the enzymatic apparatus for the biosynthesis of their own oil. Whether this synthesis occurs in granular inclusions within the oil bodies, in a boundary membrane, or in associated granular material remains to be substantiated by further research. Recent studies on wax synthesis in developing jojoba seed (Simmodsin chimensis) have also shown that the fat fraction contains all the enzymes for the synthesis of wax from malonyl-CoA (Stumpf, this volume. Chapter 7, Section I,C,3). 

The appetite-depressant activity has been the subject of many reports describing the effect of jojoba seed/simmondsin on reducing food intake and body weight.Such an anorexigenic effect is believed to be mediated by cholecystokinin and/or vagal effect. ... 

M.R. Pollard, T. McKeon, L.M. Gupta and P.K. Stumpf, Studies on biosynthesis of waxes of developing jojoba seed. II. The demonstration of wax biosynthesis by cell-free homogenates. Lipids 14 651 (1979). 

IDENTinCATION OF JOJOBA SEED ACYL-COA FATTY ALCOHOL ACYLTRANSFERASE BY PHOTOLABELING WITH ACYL-COA ANALOG... 

Jojoba seed were frozen, homogenized, then mixed with extraction buffer that contained 3 M NaCl and 0.3 M sucrose. This mixture was spun at 20,000 x g and the pellet discarded. The floating layer, called fat pad, was washed and saved. The 20,000 X g supernatant was centrifuged at 80,000 x g for 1 h. The supernatant was dialyzed then centrifuged at 200,000 x g for 1 h to pellet the microsomal membranes. 

We have shown that a 57 kDa polypeptide from the microsomal membrane of developing jojoba seed is indeed the fatty alcohol acyltransferase. The results... 

Figure 1. The effect of dodecanol on photolabeling of jojoba seed microsomal membrane proteins...

Sherbrooke, W.C. (1976) Differential acceptance of toxic jojoba seed (Simmondsia chinensis) by four Sonoran Desert heteromyid rodents. Ecology, 57 596-602. 

Cappillino, P., Kleiman, R., Botti, C., 2003. Composition of Chilean jojoba seeds. Ind. Crops Prod. 17,177-182. 

Synonyms Buxus chinensis Jojoba liquid wax Jojoba oil Oils, jojoba Simmond-sia Chinensis (Jojoba) Seed Oil Classification Wax ester... 

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