A formulation includes an active agent, a thickening/solidifying agent, and an antioxidant. The active agent is 9-cis-β-carotene (9CBC) or a derivative thereof of the following formula: ##STR00001##
where R.sub.2 is H or methyl; X is ##STR00002##
optionally substituted with one or more methyl groups; n is an integer of 0-16; and the asterisk represents the point of attachment to the cyclohexene ring.

A formulation includes an active agent, a thickening/solidifying agent, and an antioxidant. The active agent is 9-cis-β-carotene (9CBC) or a derivative thereof of the following formula: ##STR00001##
where R.sub.2 is H or methyl; X is ##STR00002##
optionally substituted with one or more methyl groups; n is an integer of 0-16; and the asterisk represents the point of attachment to the cyclohexene ring.

A formulation includes an active agent, a thickening/solidifying agent, and an antioxidant. The active agent is 9-cis-β-carotene (9CBC) or a derivative thereof of the following formula:

##STR00001##

where R.sub.2 is H or methyl; X is

##STR00002##

optionally substituted with one or more methyl groups; n is an integer of 0-16; and the asterisk represents the point of attachment to the cyclohexene ring.

A formulation includes an active agent, a thickening/solidifying agent, and an antioxidant. The active agent is 9-cis-β-carotene (9CBC) or a derivative thereof of the following formula:

##STR00001##

where R.sub.2 is H or methyl; X is

##STR00002##

optionally substituted with one or more methyl groups; n is an integer of 0-16; and the asterisk represents the point of attachment to the cyclohexene ring.

The present invention relates to a method for total chemical synthesis of 9-cis-β-carotene (9CBC), and further provides stable formulations thereof.

The present invention relates to a method for total chemical synthesis of 9-cis-β-carotene (9CBC), and further provides stable formulations thereof.

The present invention relates to a method for total chemical synthesis of 9-cis--carotene (9CBC), and further provides stable formulations thereof.

A method of producing alpha-tocotrienol quinone or a stereoisomer thereof, the method comprising selective opening of alpha-tocotrienol chroman to alpha-tocotrienol quinone in the presence of non-alpha tocotrienol chromans by oxidizing alpha-tocotrienol with a metal salt oxidizing agent, wherein the stoichiometric ratio of metal salt oxidizing agent/alpha-tocotrienol is at least 4:1 and wherein said metal oxidizing agent is added in sequential additions, in order to reduce oxidation of any amounts of non-alpha tocotrienol chromans that might have been present in the starting alpha-tocotrienol chroman material. This process uses conditions favoring oxidation rates of the alpha tocotrienol chroman vs. the non-alpha tocotrienol chromans.

The present invention relates to an improved method for producing specific ,-unsaturated aldehydes.

The present invention relates to a method for preparing an iodine-doped TiO.sub.2 nano-catalyst and use of the catalyst in heterogeneously catalyzing configuration transformation of trans-carotenoids. The iodine-doped TiO.sub.2 nano-catalyst is prepared by a sol-gel process using a titanate ester as a precursor and an iodine-containing compound as a dopant in the presence of a diluent, inhibitor and complexing agent. The catalyst exhibits high activity for isomerization of the trans-carotenoids into their cis-isomers within a short catalytic time. The catalyst can be easily prepared and is highly efficient, economical, recyclable and environmentally friendly.