Production method for oil/fat composition rich in palmitic acid at position 2

A technology of oil composition and manufacturing method, applied in the direction of edible oil/fat, food science, fatty acid esterification, etc., capable of solving problems such as nutritional differences

Pending Publication Date: 2020-10-16
FUJI OIL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when focusing on the triacylglycerol structure of the fats and oils for formula milk prepared in this way, the bonding arrangement of fatty acids with respect to the glycerol skeleton is very different from fats and oils in human milk. Potentially nutritional differences for well-developed neonates

Method used

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  • Production method for oil/fat composition rich in palmitic acid at position 2
  • Production method for oil/fat composition rich in palmitic acid at position 2

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] After adding 0.15% by weight of sodium methoxide to palm stearin (iodine value 14.2), and performing a random transesterification reaction at 80° C. for 30 minutes, it was washed with water in accordance with a conventional method to obtain a palm stearin random transesterified oil. The 2-position palmitic acid content of this oil was 80 weight%, and the acid value was 0.24. Mix 20 parts by weight of this oil as a raw material oil, and 80 parts by weight of ethyl oleate (the content of oleic acid in the constituent fatty acids is 84% ​​by weight, and the acid value is 8.8) as a raw material fatty acid ester, etc., to obtain a raw material mixture. The cloud point of the raw material mixture is 26.0°C, which is acceptable. While maintaining this raw material mixture at 45° C., a transesterification reaction was carried out by passing through a fixed-bed reactor filled with 1.3-specific lipase. After the reaction, the obtained reaction liquid was separated into a triglyc...

Embodiment 2

[0079] As a raw material fatty acid ester, etc., ethyl oleate (purity 80% by weight, acid value 8.8) was mixed with oleic acid (purity 80% by weight, acid value 198.0) to prepare a mixture with a specific acid value, and a test product with an acid value of 198.0 was obtained. Sample A (single product of oleic acid), sample B with an acid value of 50.0, sample C with an acid value of 30.0, sample D with an acid value of 20.0, and sample E with an acid value of 8.8.

[0080] Samples A to E of these raw material fatty acid esters and the like were randomly transesterified with the palm stearin oil obtained in Example 1 so that the raw material fat / raw material fatty acid esters were 15 / 85, 20 / 80, and 25 / 75, 30 / 70, 40 / 60, 41.5 / 58.5 to adjust the raw material mixture, and measure its cloud point. The results are shown in Table 1.

[0081] Cloud point (℃) of table 1 raw material mixture (iodine value of raw material oil and fat 14.2)

[0082]

[0083] The cloud point tends to...

Embodiment 3

[0085] Except having used the palm stearin of iodine value 17.5, it carried out similarly to Example 1, obtained the palm stearin random transesterification oil, and used it as raw material fats and oils.

[0086] In addition, as the raw material fatty acid ester, etc., a sample A (oleic acid single product) with an acid value of 198.0 was used to prepare a raw material mixture such that the raw material fat / raw material fatty acid ester was 40 / 60, and the cloud point thereof was measured. As a result, it was 36.0°C, which was a pass.

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Abstract

Oils and fats having a high 2-position palmitic acid content, which are used as a raw material for an oil / fat composition containing an XPX triglyceride having palmitic acid linked to position 2 thereof and X linked to positions 1 and 3 thereof, crystalize at low reaction temperature, likely leading to troubles such as clogging of a reaction vessel (X: an unsaturated fatty acid or a saturated fatty acid having not more than 10 carbon atoms). However, according to the present invention, when such oils and fats are mixed with a particular raw material fatty acid or a lower alcohol ester thereof,the cloud point of the raw material mixture can be set to 39.5 DEG C or lower, and therefore, crystal deposition does not occur even at a low reaction temperature.

Description

technical field [0001] The present invention relates to a method for producing an oil and fat composition comprising an XPX triglyceride in which palmitic acid is bonded at the 2-position and X is bonded at the 1 and 3 positions. Here, X is an unsaturated fatty acid or a saturated fatty acid having 10 or less carbon atoms, and XPX is a triglyceride in which palmitic acid is bonded at the 2-position and X is bonded at the 1 and 3 positions. Moreover, it is related with the manufacturing method of the oil-fat composition containing 1, 3- dioleic acid- 2- palmitic acid triglyceride (OPO) especially. Background technique [0002] Triacylglycerol is a main component of lipids constituting foods, and is an important nutrient for the growth and activities of living things. In particular, 1,3-dioleic acid-2-palmitic acid triglyceride (OPO) is a major oil component of lipids contained in human milk. [0003] In the past, foods formulated for newborns, especially formula milk powder...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23D9/00
CPCA23D9/00A23L33/115C11C3/10C12P7/6445A23D9/02C11C3/003C12P7/6454C12P7/6458
Inventor 渡边慎平
Owner FUJI OIL CO LTD
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