phytosterol

(redirected from Campesterol)
Also found in: Dictionary, Encyclopedia.

phytosterol

 [fi″to-ste´rol]
a sterol of vegetable origin.

phy·to·ste·rol

(fi'tō-stē'rol),
Generic term for the sterols of plants.

phytosterol

(fī′tō-stîr′ôl′, -ōl′, -stĕr′-)
n.
Any of various sterols, such as stigmasterol, that are derived from plants.

phytosterol

A generic term for cholesterol-like compounds of plant origin, which include plant sterols and stanols.

Alternative medicine
It is alleged that phytosterols reduce the risk of cardiovascular disease due to their ability to reduce serum cholesterol levels; however, there are few peer-reviewed reports that support this allegation.
References in periodicals archive ?
Distinguishing between vascular plant sterols and sterols derived from marine phytoplankton is a complex task because of the lack of resolution between the C-24 epimers of campesterol, [beta]-sitosterol and stigmasterol with the analytical techniques used.
Lee et al., "Identification of campesterol from Chrysanthemum coronarium L.
Beta-sitosterol, however, was determined to be much more effective than campesterol in offering this protection in most parameters assessed.
Campesterol, sitosterol, stigmasterol, desmosterol, lathosterol, 7-dehydrocholesterol, and butylated hydroxytoluene were obtained from Sigma-Aldrich Chemie.
m.] raw materials sterols age of plants rhizomes roots mean sitosterol 3-O- [beta]-D-glucoside (eleutheroside A) 2 years old 5.50 15.59 10.55 a 3 years old 45.71 81.24 63.48 b 4 years old 69.60 176.42 123.01 c mean 40.27 91.08 ** p-sitosterol 2 years old 31.11 38.16 34.64 a 3 years old 60.60 63.91 62.23 b 4 years old 77.18 81.20 79.19 c mean 56.30 61.09 campesterol 2 years old 10.48 28.89 19.69 b 3 years old 7.80 12.20 10.00 a 4 years old 6.18 8.33 7.26 a mean 8.25 16.47 ** brassicasterol 2 years old 3.32 4.19 3.76 3 years old 3.93 4.16 4.05 4 years old 3.87 7.72 5.80 mean 3.70 8.04 ** ** p<0.01
Nergiz and Otles (1993) reported that the tocopherols in the NS seed oil were a-, AY- and - tocopherol, and their amounts were 40 g/g, 50 g/g and 250 g/g, respectively, while AY-sitosterol was the dominant sterol (69.4%), followed by stigmasterol (18.6%) and campesterol (11.9%).
Phytosterols include a wide variety of molecules that are structurally similar to cholesterol; the principal examples are AY-sitosterol campesterol and stigmasterol [55 56].
Plant sterols including sitosterol, campesterol, and stigmasterol are cholesterol-like molecules; the saturated analogues are suggested as effective cholesterol-lowering agents whilst those with ethylidene contain side chain that may behave as antioxidants [27,28].
In the in vitro studies, both beta-sitosterol and campesterol inhibited the growth of PC-3 cells by 70% and 14%, respectively, while cholesterol supplementation increased the growth by 18% when compared with controls.
Other reported compounds include 3-glucosyl quercetin, betulic acid, bicycloelemene, brahmic acid, campesterol, camphor, centellic acid, centellinic acid, centellose, centelloside, centoic acid, elaidic acid, germacrene-D, hydrocotyline, indocentoic acid, isobrahmic acid, isothankunic acid, lignoceric acid, medicassic acid, oxyasiaticoside, and vellarine (Duke, 1992).
Em relacao a concentracao de fitosterois, o suplemento Vegapure[R] 95FF apresentou 54% de fitosterois totais, sendo os fitosterois majoritarios [beta]-sitosterol, campesterol e campestanol (47,3%, 28,3% e 13,4% do total de fitosterois, respectivamente).