The instant invention relates to a method for purifying a rosin-containing material from sulfur compounds. In particular the method comprises a) contacting a rosin-containing material comprising rosin and sulfur compounds with an oxidizing agent at a temperature from 0 to 60° C. for 10 minutes to 3 hours, to oxidize at least part of the sulfur compounds; and b) separating the rosin from the oxidized sulfur compounds; to obtain a purified rosin-containing material. The invention also relates to the purified rosin-containing materials, the preparation of products derived therefrom and the use of the purified rosin-containing materials and derived products.

The present invention encompasses a carotenoid composition, a process for producing a carotenoid composition, and methods of use thereof.

The present invention encompasses a carotenoid composition, a process for producing a carotenoid composition, and methods of use thereof.

A process for deodorizing a rosin ester composition is disclosed. The process employs an adsorptive bed containing an adsorbent material. The adsorbent material comprises silica adsorbent having an average pore size between 50-200 Å, BET surface area of at least 300 mm.sup.2/g, pore volume of 1.20 to 3.00 cc/g, and a silanol [Si—OH] level of 0.5 to 5 unit/nm.sup.2. The deodorized rosin ester composition has an odor intensity reduction of at least 1 unit on odor intensity scale of Offensive Odor Control Act as compared to the rosin ester feedstock. In embodiment, the deodorizing treatment comprises using multi-staged adsorbent system with an adsorbent column having multiple layers of different adsorbent materials.

A process for deodorizing a rosin ester composition is disclosed. The process employs an adsorptive bed containing an adsorbent material. The adsorbent material comprises silica adsorbent having an average pore size between 50-200 Å, BET surface area of at least 300 mm.sup.2/g, pore volume of 1.20 to 3.00 cc/g, and a silanol [Si—OH] level of 0.5 to 5 unit/nm.sup.2. The deodorized rosin ester composition has an odor intensity reduction of at least 1 unit on odor intensity scale of Offensive Odor Control Act as compared to the rosin ester feedstock. In embodiment, the deodorizing treatment comprises using multi-staged adsorbent system with an adsorbent column having multiple layers of different adsorbent materials.

The present disclosure relates to methods and an apparatus for extracting terpenes and rosin from resinous wood with an agent that comprises, consists or consists essentially of a terpene to thereby extract the rosin and/or terpene fractions from the resinous wood. The apparatus for extracting rosin and/or terpene fractions comprises a treatment chamber for treating the resinous wood with the agent. The treatment chamber is in communication with a distillation chamber for separating the rosin and terpene fractions extracted from the resinous wood.

The present disclosure relates to methods and an apparatus for extracting terpenes and rosin from resinous wood with an agent that comprises, consists or consists essentially of a terpene to thereby extract the rosin and/or terpene fractions from the resinous wood. The apparatus for extracting rosin and/or terpene fractions comprises a treatment chamber for treating the resinous wood with the agent. The treatment chamber is in communication with a distillation chamber for separating the rosin and terpene fractions extracted from the resinous wood.

A rosin-modified product being a reactant of a rosin or a rosin derivative and an alkanolamine represented by a following Formula (1)
NH.sub.3-n—(R—OH).sub.n(n≤3); or  (1) being produced by a reaction of a rosin or a rosin derivative, an organic acid and an alkanolamine.

A rosin-modified product being a reactant of a rosin or a rosin derivative and an alkanolamine represented by a following Formula (1)
NH.sub.3-n—(R—OH).sub.n(n≤3); or  (1) being produced by a reaction of a rosin or a rosin derivative, an organic acid and an alkanolamine.

A process for deodorizing a rosin ester composition is disclosed. The process employs an adsorptive bed containing an adsorbent material. The adsorbent material comprises silica adsorbent having an average pore size between 50-200 Å, BET surface area of at least 300 m.sup.2/g, pore volume of 1.20 to 3.00 cc/g, and a silanol [Si—OH] level of 0.5 to 5 unit/nm.sup.2. The deodorized rosin ester composition has an odor intensity reduction of at least 1 unit on odor intensity scale of Offensive Odor Control Act as compared to the rosin ester feedstock. In embodiment, the deodorizing treatment comprises using multi-staged adsorbent system with an adsorbent column having multiple layers of different adsorbent materials.