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Process for producing a glyceride composition

A technology of composition and glyceride, which is applied in the field of preparation of glyceride composition, and can solve problems such as unsaturation

Active Publication Date: 2013-01-16
LODERS CROKLAAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, they differ significantly in composition because most plant-derived glycerides are unsaturated at the 2-position

Method used

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  • Process for producing a glyceride composition
  • Process for producing a glyceride composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Randomization of Palm Olein Stearin Components by Chemical Methods

[0049] Performing chemical randomization reactions provides a reference for enzyme-catalyzed randomization reactions. 1 kg of palm oil stearin fraction with an iodine value of 14 (POs 14) was heated under vacuum at 110° C. for 15 minutes to remove all moisture. The vacuum was interrupted, 0.15% sodium ethoxide was added and the reaction was continued under vacuum at 110° C. for 30 minutes. The reaction was terminated by washing the oil several times with demineralized water at 95°C.

Embodiment 2

[0052] Enzymatic Randomization of Palm Olein Stearin Fractions in a Batch Reaction

[0053] The following three parameters were used for the randomization of the palm stearin fraction and for the production of structured lipids generally comprising OPO (1,3-dioleoyl-2-palmitoylglyceride).

[0054] ●Total fatty acid composition: name

[0055] ●Carbon number of triglyceride: C48 tripalmitoyl glyceride

[0056] C50 Monooleoyl Dipalmitoyl Glyceride

[0057] C52 Dioleoyl Monopalmitoyl Glyceride

[0058] C54 Trioleoyl Glyceride

[0059] ●The relative position of palmitic acid: Sn-2C16:0

[0060] Sn-2, as defined above, refers to the number of moles (or weights) of palmitoyl residues present at the 2-position of glycerides divided by the total number of moles (or weights) of palmitoyl residues present in triglycerides.

[0061] POs14 (palm oil glyceryl stearate with an iodine number of 14) was randomized in a ba...

Embodiment 3

[0070] Produced with conventional and randomized palm stearin fraction (POs14) containing 1,3- Structural lipids of dioleoyl-2-palmitoylglyceride (OPO)

[0071] Structural lipids containing OPO are produced by enzymatic 1,3-specific acid hydrolysis between oleic acid and POs14. A continuous packed bed reactor containing the enzyme was used. The enzyme was lipase D (Rhizopsis delbrueckii, Amano) immobilized on microporous polypropylene microspheres (Accurel).

[0072] The feed oil consisted of a mixture of POs14 and oleic acid in a gram / gram ratio of 1:1.4. The mixture was slowly pumped through the column containing the immobilized enzyme. During the passage of the oil / fatty acid mixture, an acidolysis reaction occurs, the degree of conversion of which is proportional to the retention time in the column. The retention time is the void volume of the enzyme bed divided by the flow rate. The retention time used in this example was 53 minutes.

[0073] Water is added to ma...

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Abstract

A process for the production of a composition comprising 1,3-dioleoyl-2-palmitoyl glyceride (OPO) comprises: providing one or more palm oil stearin fractions comprising tripalmitoyl glyceride and having an iodine value between about 18 and about 40; interesterifying the one or more palm oil stearin fractions to form a randomly interesterified palm oil stearin; subjecting the randomly interesterified palm oil stearin to enzymic transesterification with oleic acid or a non-glyceride ester thereof using an enzyme having selectivity for the 1- and 3-positions of a glyceride; and separating palmitic acid or palmitic non-glyceride esters from the product obtained in (iii) to form a composition comprising OPO glyceride.

Description

technical field [0001] The present invention relates to a process for the preparation of glyceride compositions. Background technique [0002] Triglycerides Fats and oils are important commodities and are widely used eg in the food industry. Some triglycerides are nutritionally important, and the triglyceride 1,3-dioleoyl-2-palmitoylglyceride is known to be an important constituent of human milk fat. [0003] A fat composition comprising the major fatty acids present in human milk fat can be obtained from oils and fats of vegetable origin, the fat composition comprising the major fatty acids in an amount similar to that found in human milk fat. However, they differ significantly in composition because most plant-derived glycerides are unsaturated at the 2-position. In contrast, the 2-position of the glycerides of human milk fat is substantially occupied by palmitic acid. [0004] Differences in the distribution of acids at various positions in glycerides are thought to ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11C3/10A23L1/30
CPCA23V2002/00C11C3/10A23D9/02A23L1/3008A23L1/296A23L1/3006A23L33/40A23L33/115A23L33/12A23V2200/30A23V2200/124A23V2250/1942A23V2250/1868A23V2250/187
Inventor E·施魏策尔S·鲍尔K·伯哈干
Owner LODERS CROKLAAN
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