AU2020102891A4

AU2020102891A4 - Medium-chain fatty acid powdered oil and preparation method thereof

Info

Publication number: AU2020102891A4
Application number: AU2020102891A
Authority: AU
Inventors: Xinrong Liu
Original assignee: Jiahe Foods Industry Co Ltd
Current assignee: Jiahe Foods Industry Co Ltd
Priority date: 2019-12-31
Filing date: 2020-10-20
Publication date: 2020-12-17
Anticipated expiration: 2028-04-27

Abstract

The present disclosure relates to a medium-chain fatty acid powdered oil and a preparation method thereof, in percent by weight, the medium-chain fatty acid powdered oil comprises following raw material components: 60 to 80 % medium-chain triglycerides; 20 to 40 % a low GI carrier. The powdered oil of the present disclosure has a high MCT content (> 60%), which can be used as a food raw material and food accessories for the development of related foods; in addition, the present disclosure uses a low GI carrier, which is suitable for the dietary requirements of diabetics in the case of meeting the rapid functional needs of the human body, moreover, through the improvement of the formula and the preparation method of the present disclosure, and through simple proportioning, the present disclosure guarantees the physical and chemical properties and sensory properties of the powdered oil.

Description

SPECIFICATION

Medium-chain Fatty Acid Powdered Oil And Preparation Method

Thereof

Technical Field of the Invention The present disclosure belongs to the food field, and in particular, relates to a medium-chain fatty acid powdered oil and a preparation method thereof.

Background of the Invention Medium-chain triglycerides (MCTs) are a kind of lipid obtained by chemical methods, and are widely used in preparation and processing of various foods. They are usually extracted from coconut oil or palm oil and are mixtures of saturated triglycerides. They are mainly composed of saturated fatty acid octanoic acid

(C 8 H16 02) with 8 carbon atoms and saturated fatty acid decanoic acid (CioH 2 0 02

) with 10 carbon atoms, with a total content of not less than 95%. Studies have shown that long-chain fatty acids need to be emulsified by bile and hydrolyzed by pancreatic lipase before entering the intestine. In the intestinal epithelial cells, they recombine with glycerol to form triglycerides, which then participate in the formation of chylomicrons, enter the blood circulation through the lymphatic system, and then are transported to the heart, liver, and fat tissue. Medium-chain fatty acids can enter the liver directly through the hepatic portal vein without going through the lymphatic system, and are quickly metabolized by the liver into ketone bodies to supply energy to the body, and this process only takes 30 minutes. It is mentioned in the reply concerning medium-chain triglycerides (i.e., MCTs) relevant issues from the General Office of the National Health and Family Planning Commission of the People's Republic of China (Letter No. 514 (2013) of the General Office of the National Health and Family Planning Commission) that medium-chain triglycerides are medium-chain fats and are naturally found in food such as palm kernel oil and coconut oil and breast milk, and are one of the sources of dietary fat, and the main component thereof is "octyl and decyl glycerate". According to the provisions of the national food safety standard "General Rules for Infant Formula for Special Medical Purposes" (GB 25596-2010) and the national food safety standard "Standards for Uses of Food Additives" (GB 2760-2011), medium-chain triglycerides can be used as food raw materials or emulsifiers. Studies have shown that monosaccharides such as glucose and fructose can also achieve quick energy supply to the human body, and these monosaccharides are common high GI nutrients and are abundant in common starch sugars or starch syrups. Powdered oils (O/W emulsification system) generally have good water solubility, and appear as an emulsion after being dissolved in water. Powdered oils are widely used in the modern food industry, such as the beverage industry, baking industry, snack food industry, and made-on-site beverage industry, to provide three nutrient substances, i.e., fats, carbohydrates, and proteins for related foods. Since MCT oils are liquid oils, they are not easy to dissolve in water, and not easy to combine with other water-soluble food accessories, therefore, the powdering of MCTs is very important. In addition, MCT oils have an average melting point of -15 °C and are liquid at room temperature, and affected by this, MCT content in MCT powder oils is usually < 60 %, and processing of powder oils with high MCT content has technical difficulties. The current powdered oils take edible oils as the main raw materials, and are added with other food raw materials and accessories, with or without the addition of food additives, and are processed into powder products. Usually, sugars or starch sugars are chosen as a carrier of powdered oils, to achieve powdering of oils. However, due to the high GI value of sugars or starch sugars, they are not suitable for the design of dietary foods recommended for diabetics.

Summary of the Invention The technical problem to be solved by the present disclosure is to provide a medium-chain fatty acid powdered oil with high MCT content and low glycemic index and suitable for use by diabetics, and a preparation method thereof. To solve the above problems, the present disclosure employs the following technical solution: In one aspect, the present disclosure provides a medium-chain fatty acid powdered oil, in percent by weight, it comprises following raw material components: medium-chain triglycerides 60 to 80 %; low GI carrier 20 to 40 %. According to an implementation, in percent by weight, it consists of following raw material components: medium-chain triglycerides 60 to 80 %; low GI carrier 20 to 40 %. Preferably, in percent by weight, it consists of following raw material components: medium-chain triglycerides 60 to 70 %; low GI carrier 30 to 40 %. In a preferred embodiment of the present disclosure, only medium-chain triglycerides and a low GI carrier are used as raw materials to prepare powdered oils, which has simple ingredients and high safety. According to another implementation, the medium-chain fatty acid powdered oil further comprises sodium caseinate and/or monoglycerides and diglycerides. Preferably, the sodium caseinate accounts for 2 - 6 % of the total mass of the medium-chain fatty acid powdered oil. Preferably, the monoglycerides and diglycerides account for 0.5 - 2 % of the total mass of the medium-chain fatty acid powdered oil. In another preferred embodiment of the present disclosure, by further using sodium caseinate and/or monoglycerides and diglycerides, the powdering performance of the powdered oil is further improved. Preferably, the low GI carrier is selected from the group consisting of arabic gum, resistant dextrin, inulin, and combinations thereof. The second aspect of the present disclosure is to provide a preparation method of a medium-chain fatty acid powdered oil, comprising selectively adding monoglycerides and diglycerides into the medium-chain triglycerides to prepare an oil phase solution; after dissolving the low GI carrier, selectively adding sodium caseinate to prepare an aqueous phase solution; after emulsifying and homogenizing the oil phase solution and the aqueous phase solution, spray drying to give a medium-chain fatty acid powdered oil. Preferably, the low GI carrier is dissolved in water of 60 to 70 °C, and the medium-chain triglycerides is heated to 60 to 70 °C to prepare the oil phase solution. The third aspect of the present disclosure is to provide a preparation method of a medium-chain fatty acid powdered oil, comprising dissolving the low GI carrier, mixing with the medium-chain triglycerides, emulsifying, homogenizing, and spray drying to give a medium-chain fatty acid powdered oil. Preferably, the low GI carrier is dissolved in water of 60 to 70 °C, and the medium-chain triglycerides is heated to 60 to 70 °C, and then the mixing is carried out. The fourth aspect of the present disclosure provides a medium-chain fatty acid powdered oil, in percent by weight, it comprises following raw material components: medium-chain triglycerides 60 to 80 %; sodium caseinate 2 to 6 %; monoglycerides and diglycerides 0.5 to 2 %; low GI carrier 12 to 37 %. Preferably, in percent by weight, it comprises following raw material components: medium-chain triglycerides 65 to 75 %; sodium caseinate 2 to 6 %; monoglycerides and diglycerides 0.5 to 1.5 %; low GI carrier 17.5 to 30 %. Preferably, the low GI carrier is selected from the group consisting of arabic gum, resistant dextrin, inulin, and combinations thereof. The fifth aspect of the present disclosure is to provide a preparation method of a medium-chain fatty acid powdered oil, comprising mixing the medium-chain triglycerides with monoglycerides and diglycerides to prepare an oil phase, dissolving the low GI carrier and sodium caseinate in water to prepare an aqueous phase, mixing the oil phase and the aqueous phase, emulsifying, homogenizing, and spray drying to give a medium-chain fatty acid powdered oil. Preferably, the medium-chain triglycerides are heated to 60 to 70 °C, added with monoglycerides and diglycerides to prepare the oil phase; the low GI carrier and sodium caseinate are dissolved in water to prepare the aqueous phase. In the present disclosure, the spray drying uses a spray drying tower provided by Chinese Patent Application No. 201020022379.0. The other equipment in the present disclosure is conventional general equipment in the industry. Due to the implementation of the above technical solutions, the present disclosure has the following advantages over the prior art: The powdered oil of the present disclosure has a high MCT content (> 60%), which can be used as a food raw material and food accessories for the development of related foods; in addition, the present disclosure uses a low GI carrier, which is suitable for the dietary requirements of diabetics in the case of meeting the rapid functional needs of the human body, moreover, through the improvement of the formula and the preparation method of the present disclosure, and through simple proportioning, the present disclosure guarantees the physical and chemical properties and sensory properties of the powdered oil.

Detailed Description of Exemplary Embodiments In the following, the present disclosure is further explained in detail combining with specific embodiments, but the present disclosure is not limited to the following embodiments. The implementation conditions adopted in the embodiments can be further adjusted according to different requirements of specific use, and the implementation conditions not specified are the conventional conditions in the industry, and the unexplained "%" is the mass percent. The preparation method of the respective embodiments: (1) The MCT oils were heated to 60 to70 °C, and monoglycerides and diglycerides were selectively added, and the mixture was stirred evenly to prepare an oil phase solution; (2) The low GI carrier was dissolved in water of 60 to70 °C, and sodium caseinate was selectively added, and the mixture was stirred evenly to prepare an aqueous phase solution; (3) the solution prepared in Step (1) and the solution prepared in Step (2) were injected into an emulsification tank at the same time to fully emulsify, the emulsified slurry was injected into a homogenizer to homogenize, and then the homogenized slurry was injected into a spray drying tower to spray dry to give a powdered substance, i.e. the powdered oil of the present disclosure. The raw material ratios of the powdered oil of the respective embodiments are shown in Table 1, unit:%. Table 1 Raw material Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 name

MCT oils 60 65 65 70 75

Sodium caseinate 0 2 4.5 5 6

Monoglycerides 0 1.5 0.5 1 1.5 and diglycerides

Arabic gum 40 31.5 0 0 0

Resistant dextrin 0 0 30 10 17.5

Inulin 0 0 0 14 0

The powdered oil of the present disclosure has a low Glycemic index and a high MCT content (> 60%), can achieve quick energy supply to the human body,

and provides the diabetics low GI foods or food raw materials that can achieve

quick energy supply to the human body.

The above detailed describes the present disclosure, and are intended to make those skilled in the art being able to understand the present disclosure and thereby

implement it, and should not be concluded to limit the protective scope of this

disclosure. Any equivalent variations or modifications according to the spirit of the

present disclosure should be covered by the protective scope of the present

o disclosure.

Claims

1. A medium-chain fatty acid powdered oil, is characterized in that, in percent by weight, it comprises following raw material components: medium-chain triglycerides 60 to 80 %; low GI carrier 20 to 40 %.

2. The medium-chain fatty acid powdered oil according to claim 1, is characterized in that, in percent by weight, it consists of following raw material components: medium-chain triglycerides 60 to 80 %; low GI carrier 20 to 40 %.

3. The medium-chain fatty acid powdered oil according to claim 2, is characterized in that, in percent by weight, it consists of following raw material components: medium-chain triglycerides 60 to 70 %; low GI carrier 30 to 40 %.

4. The medium-chain fatty acid powdered oil according to claim 1, is characterized in that, the medium-chain fatty acid powdered oil further comprise sodium caseinate and/or monoglycerides and diglycerides.

5. The medium-chain fatty acid powdered oil according to claim 4, is characterized in that, the sodium caseinate accounts for 2 to 6 % of the total mass of the medium-chain fatty acid powdered oil.

6. The medium-chain fatty acid powdered oil according to claim 4, is characterized in that, the monoglycerides and diglycerides account for 0.5 to 2 % of the total mass of the medium-chain fatty acid powdered oil.

7. The medium-chain fatty acid powdered oil according to any one of claims 1 to 6, is characterized in that, the low GI carrier is selected from the group consisting of arabic gum, resistant dextrin, inulin, and combinations thereof.

8. A preparation method of the medium-chain fatty acid powdered oil according to any one of claims 1 to 7, is characterized in that, selectively adding monoglycerides and diglycerides into the medium-chain triglycerides to prepare an oil phase solution; after dissolving the low GI carrier, selectively adding sodium caseinate to prepare an aqueous phase solution; after emulsifying and homogenizing the oil phase solution and the aqueous phase solution, spray drying to give a medium-chain fatty acid powdered oil.

9. The preparation method according to claim 8, is characterized in that, the low GI carrier is dissolved in water of 60 to 70 °C, and the medium-chain triglycerides is heated to 60 to 70 °C to prepare the oil phase solution.

10. A preparation method of the medium-chain fatty acid powdered oil according to any one of claims 1 to 3 and 7, is characterized in that, dissolving the low GI carrier, mixing with the medium-chain triglycerides, emulsifying, homogenizing, and spray drying to give a medium-chain fatty acid powdered oil.

11. The preparation method according to claim 10, is characterized in that, the low GI carrier is dissolved in water of 60 to 70 °C, and the medium-chain triglycerides is heated to 60 to 70 °C, and then the mixing is carried out.

12. A medium-chain fatty acid powdered oil, is characterized in that, in percent by weight, it comprises following raw material components: medium-chain triglycerides 60 to 80 %; sodium caseinate 2 to 6 %; monoglycerides and diglycerides 0.5 to 2 %; low GI carrier 12 to 37 %.

13. The medium-chain fatty acid powdered oil according to claim 12, is characterized in that, in percent by weight, it comprises following raw material components: medium-chain triglycerides 65 to 75 %; sodium caseinate 2 to 6 %; monoglycerides and diglycerides 0.5 to 1.5 %; low GI carrier 17.5 to 30 %.

14. The medium-chain fatty acid powdered oil according to claim 12 or 13, is characterized in that, the low GI carrier is selected from the group consisting of arabic gum, resistant dextrin, inulin, and combinations thereof.

15. A preparation method of the medium-chain fatty acid powdered oil according to any one of claims 12 to 14, is characterized in that, mixing the medium-chain triglycerides with monoglycerides and diglycerides to prepare an oil phase, dissolving the low GI carrier and sodium caseinate in water to prepare an aqueous phase, mixing the oil phase and the aqueous phase, emulsifying, homogenizing, and spray drying to give a medium-chain fatty acid powdered oil.

16. The preparation method according to claim 15, is characterized in that, the medium-chain triglycerides are heated to 60 to 70 °C, added with monoglycerides and diglycerides to prepare the oil phase; the low GI carrier and sodium caseinate are dissolved in water of 60 to 70 °C to prepare the aqueous phase.