42 results about "Heptanal" patented technology

Provided an agent for suppressing an odor of a polysulfide compound. This agent for suppressing an odor of a polysulfide compound comprises, as an active ingredient, at least one selected from the group consisting, butyl 2-methylbutanoate, α-terpinene, dipentene, cis-4-heptenal, 1,4-cineol, trimethylhexyl aldehyde, and (+)-limonene oxide, wherein the polysulfide compound is represented by the following formula (I): R1—[S]n—R2 (I) (in the formula, R1 and R2 are the same or different, and each denote a linear-chain or branched-chain alkyl or alkenyl group having 1 to 6 carbon atoms, and n denotes an integer of 2 to 5).

The invention discloses a formulated purple potato essence, which comprises the following raw materials in parts by weight: 0.01-2 parts of isobutyraldehyde, 0.01-2 parts of isovaleraldehyde, 0.01-2 parts of acetic acid, 0.1-5 parts of isoamyl alcohol, 0.05-2 parts of hexanal, 0.01-5 parts of 2-heptanone, 0.01-5 parts of heptanal, 0.01-0.5 parts of 4-ethylphenol, 0.01-5 parts of methyl hexanoate, 0.01-5 parts of benzaldehyde, 0.01-5 parts of acid, 0.01-5 parts of 2-octanone, 0.01-5 parts of ethyl caproate, 0.01-5 parts of ethyl caprylate, 0.005-2 parts of 2-undecanone, etc., and auxiliary materials. The essence provided by the invention has the characteristic flavor of roasted purple potatoes, and can continuously provide the unique sensory flavor of purple potatoes when added to the heat-processed products of purple potatoes.

The invention relates to a device and process for cracking and preparing methyl undecylenate by using methyl ricinoleate as a raw material. The device includes: a feed pump, a raw material preheater, a microwave catalytic reactor, a microwave generator, a temperature Control instrument and infrared probe, condenser, product tank and discharge pump. The feed pump is connected with a preheater, the raw material preheater is connected with the inlet of the microwave catalytic reactor, the outlet of the microwave catalytic reactor is connected with a condenser, the condenser is connected with the upper port of the product tank, and the lower port of the product tank is connected with a discharge Pump. The microwave catalytic reactor is placed in a microwave generator, and the microwave generator is connected with a temperature controller and an infrared probe. The specific steps are: using high-purity ricinoleic acid methyl ester obtained by transesterification and rectification as raw material, preparing undecylenic acid methyl ester and heptanal through a microwave cracking reaction device, and then separating and purifying to obtain undecylenic acid methyl ester. The beneficial effect of the invention is that the microwave can heat evenly, save electricity compared with conventional heating, the device has continuous operability, and is suitable for industrialized production.

The invention belongs to the technical field of spices, and specifically relates to a preparation method and application of a solid condensation catalyst. Modification is carried out to prepare a solid condensation catalyst; the solid condensation catalyst of the present invention is used to catalyze the reaction of benzaldehyde with n-heptanal or n-octyl aldehyde to obtain α-pentyl cinnamaldehyde or α-hexyl cinnamaldehyde. The solid condensation catalyst of the present invention has a high conversion rate of catalyzed condensation reaction, the conversion rate of n-heptanal and n-octylaldehyde can reach 99%, is easy to separate, has high product purity, high selectivity, and α-pentyl cinnamaldehyde and α-hexyl cinnamaldehyde The condensation selectivity can reach more than 98%, and the ratio of E-type isomer to Z-type isomer can reach 97:3-99:1.