Method for manufacturing refined fat or oil

Patent metadata

Field	Value
Publication number	US-8927039-B2
Application number	US-201013516415-A
Country	US
Kind code	B2
Filing date	Dec 14, 2010
Priority date	Dec 15, 2009
Publication date	Jan 6, 2015
Grant date	Jan 6, 2015

Abstract

Provided is a method for manufacturing refined fats and oils. Here fats and oils are brought into contact with an adsorbent and subsequently treated with water vapor under at least one condition of the following conditions. In condition I, the time for which the fats and oils are brought into contact with the water vapor in a temperature range of 175° C. to 205° C. for from 5 to 110 minutes. In condition 2, the fats and oils are brought into contact with the water vapor in a temperature range of 205° C. to 215° C. for from 5 to 50 minutes. In condition 3, the fats and oils are brought into contact with the water vapor in a temperature range of 215° C. to 230° C. for from 5 to 30 minutes.

First claim

The invention claimed is:

1. A method for manufacturing refined fats and oils, the method comprising:
treating fats and oils by bringing the fats and oils into contact with an adsorbent; and
subsequently treating the fats and oils by bringing the fats and oils into contact with water vapor under at least one of the following conditions:
condition 1: the time for which the fats and oils are brought into contact with the water vapor in a temperature range of from 175° C. to 205° C. is from 34 to 90 minutes; and
condition 2: the time for which the fats and oils are brought into contact with the water vapor in a temperature range of from more than 205° C. to 215° C. is from 15 to 34 minutes,
wherein pressure is from 0.01 to 4.0 kPa,
wherein the adsorbent comprises at least one member selected from the group consisting of activated carbon, silicon dioxide, and a solid acid, and
wherein the amount of the adsorbent present is from 0.2 to 1.5 mass % relative to the amount of the fats and oils, and
wherein the fats and oils comprise 20 mass % or more of a diacylglycerol.

2. The method for manufacturing refined fats and oils according to claim 1 , wherein the absorbent is a solid acid which comprises at least one member selected from the group consisting of acid clay, activated clay, activated alumina, silica gel, silica-alumina, and aluminum silicate.

3. The method for manufacturing refined fats and oils according to claim 1 , wherein the amount of the adsorbent is from 0.3 to 1.3 mass % relative to the amount of the fats and oils.

4. The method for manufacturing refined fats and oils according to claim 1 , wherein the contact temperature between the fats and oils and the adsorbent is from 20 to 150° C.

5. The method for manufacturing refined fats and oils according to claim 1 , wherein the amount of the water vapor is from 0.3 to 20 mass % relative to the amount of the fats and oils.

6. The method according to claim 1 , wherein the time for which the fats and oils are brought into contact with the water vapor in a temperature range of from 175° C. to 205° C. is from 34 to 60 minutes.

7. The method according to claim 1 , wherein the pressure is from 0.06 to 1.0 kPa.

8. The method according to claim 1 , wherein the pressure 260 Pa.

Assignees

• Kase Minoru
• Abe Tetsuya
• Fukuhara Shinpei
• Komatsu Toshiteru
• Shibata Keiji
• Kao Corp

Inventors

• Kase Minoru
• Abe Tetsuya
• Fukuhara Shinpei
• Komatsu Toshiteru
• Shibata Keiji

Classifications

• A23D7/02 Primary

  characterised by the production or working-up {(kneading, forming A01J21/00)} · CPC title

• C11B3/10

  by adsorption · CPC title

• C11B3/14

  with the use of indifferent gases or vapours, e.g. steam · CPC title