Polyunsaturated oil powder rich in phytosterol and preparation method thereof

Abstract

The invention discloses polyunsaturated oil powder rich in phytosterol and a preparation method thereof. The method comprises the steps of dissolving phytosterol and oryzanol into oil rich in polyunsaturated fatty acids, and performing dispersion and dissolution at 25-90 DEG C; adding an oil phase in which phytosterol is dissolved into an aqueous phase of a saponin aqueous solution; performing pre-dispersion by a homogenizer, performing high pressure homogenization or ultrasonic homogenization, and obtaining nanoscale oil-in-water emulsion; and obtaining the polyunsaturated oil powder rich in phytosterol through drying of the obtained oil-in-water emulsion. The preparation process is simple and all natural and promotes bioavailability of phytosterol and omega-3polyunsaturated fatty acids; after the polyunsaturated oil powder rich in phytosterol is eaten, serum total cholesterol, low density lipoprotein cholesterol and triglyceride can be reduced synergistically, and the polyunsaturated oil powder can be widely applied to the fields of foods, medicines and cosmetics and is particularly applied to beverages and milk powder and the like.

Description

technical field

[0001] The present invention relates to an oil powder and a preparation method thereof, in particular to a polyunsaturated oil powder rich in phytosterols and a preparation method thereof, in particular to ω-3 omega-3 rich in phytosterol which has a health care function for middle-aged and elderly people. The polyunsaturated oil powder product and its production method belong to the technical field of food industry. Background technique

[0002] According to the results of my country's sixth census, there are 178 million people over the age of 60, accounting for 13.32% of the total population of the country, of which there are about 119 million people over the age of 65, accounting for 8.92% of the total population of the country. Compared with the fifth national population census in 2000, the number of elderly people over the age of 60 has increased by 48 million. The above ratio is measured by international standards. my country has entered an aging society...

Examples

Embodiment 1

[0043] In the 250ml container, as shown in Table 1, add sitosterol, oryzanol and deep-sea fish oil (containing 31.5% polyunsaturated fatty acid) and stir to mix, then add the aqueous solution containing saponin (saponin aqueous solution, be natural saponin extract aqueous solution, In the embodiment, it is saponins bark extract, saponin mass concentration is 15% in saponin aqueous solution), with 6000rpm stirring 3 minutes pre-dispersion, gained emulsion is homogenized 4 times with high-pressure micro-jet flow 100MPa, simultaneously controls temperature with low-temperature water bath and is less than 25 ℃.

[0044] Emulsion preparation formula (mass percentage composition) in the embodiment 1-4 of table 1

[0045]

[0046] The prepared emulsion was spray-dried at an inlet temperature of 145°C and an outlet temperature of 75°C to obtain a light yellow oil powder. Analyzing the product of embodiment 2 oil powder preparation by scanning electron microscope, it can be known t...

Embodiment 5

[0053] In a 250ml container, as shown in Table 3, add sitosterol, oryzanol and seaweed oil (containing 41.9% DHA and >3% EPA) and stir to mix, then add an aqueous solution containing tea saponin (saponin aqueous solution, which is natural saponin Extract aqueous solution, be tea seed dregs extract in the embodiment, the tea saponin mass concentration is 18% in saponin aqueous solution), with 6000rpm stirring 3 minutes pre-dispersion, gained emulsion is ultrasonically treated 5min with ultrasonic 250W, controls temperature with ice-water bath simultaneously less than 15°C.

[0054] Emulsion preparation formula in table 3 embodiment 5-8

[0055]

[0056] The prepared emulsion is spray-dried at an inlet temperature of 140° C. and an outlet temperature of 70° C. to obtain a powder rich in phytosterol, which has a light yellow appearance, good fluidity and strong instant solubility. The prepared oil powder rich in phytosterols showed good instant solubility, the key of which wa...

Embodiment 9

[0060] Example 9-12

[0061] In a 250ml container, as shown in Table 4, add sitosterol, oryzanol and linseed oil (containing 20% ​​oleic acid, 23% linoleic acid and 45% linolenic acid) and stir to mix, then add the aqueous solution containing soybean saponin ( Extract with hot water at 80°C for 3h, then absorb and dry the soybean saponin obtained by macroporous resin; the added amount is the mass content of soybean saponin after drying; the mass content of soybean saponin in the aqueous solution is 7.8%), stirring at 6000rpm Pre-disperse for 3 minutes, and the obtained emulsion is ultrasonically treated with 300W ultrasonic wave for 3 minutes, while using an ice-water bath to control the temperature below 15°C.

[0062] Emulsion preparation formula in the embodiment 9-12 of table 4.

[0063]

[0064] The prepared emulsion is spray-dried at an inlet temperature of 170° C. and an outlet temperature of 80° C. to obtain a powder rich in phytosterol, which has a light yellow ap...

technical field

[0001] The present invention relates to an oil powder and a preparation method thereof, in particular to a polyunsaturated oil powder rich in phytosterols and a preparation method thereof, in particular to ω-3 omega-3 rich in phytosterol which has a health care function for middle-aged and elderly people. The polyunsaturated oil powder product and its production method belong to the technical field of food industry. Background technique

[0002] According to the results of my country's sixth census, there are 178 million people over the age of 60, accounting for 13.32% of the total population of the country, of which there are about 119 million people over the age of 65, accounting for 8.92% of the total population of the country. Compared with the fifth national population census in 2000, the number of elderly people over the age of 60 has increased by 48 million. The above ratio is measured by international standards. my country has entered an aging society...

Examples

Embodiment 1

[0043] In the 250ml container, as shown in Table 1, add sitosterol, oryzanol and deep-sea fish oil (containing 31.5% polyunsaturated fatty acid) and stir to mix, then add the aqueous solution containing saponin (saponin aqueous solution, be natural saponin extract aqueous solution, In the embodiment, it is saponins bark extract, saponin mass concentration is 15% in saponin aqueous solution), with 6000rpm stirring 3 minutes pre-dispersion, gained emulsion is homogenized 4 times with high-pressure micro-jet flow 100MPa, simultaneously controls temperature with low-temperature water bath and is less than 25 ℃.

[0044] Emulsion preparation formula (mass percentage composition) in the embodiment 1-4 of table 1

[0045]

[0046] The prepared emulsion was spray-dried at an inlet temperature of 145°C and an outlet temperature of 75°C to obtain a light yellow oil powder. Analyzing the product of embodiment 2 oil powder preparation by scanning electron microscope, it can be known t...

Embodiment 5

[0053] In a 250ml container, as shown in Table 3, add sitosterol, oryzanol and seaweed oil (containing 41.9% DHA and >3% EPA) and stir to mix, then add an aqueous solution containing tea saponin (saponin aqueous solution, which is natural saponin Extract aqueous solution, be tea seed dregs extract in the embodiment, the tea saponin mass concentration is 18% in saponin aqueous solution), with 6000rpm stirring 3 minutes pre-dispersion, gained emulsion is ultrasonically treated 5min with ultrasonic 250W, controls temperature with ice-water bath simultaneously less than 15°C.

[0054] Emulsion preparation formula in table 3 embodiment 5-8

[0055]

[0056] The prepared emulsion is spray-dried at an inlet temperature of 140° C. and an outlet temperature of 70° C. to obtain a powder rich in phytosterol, which has a light yellow appearance, good fluidity and strong instant solubility. The prepared oil powder rich in phytosterols showed good instant solubility, the key of which wa...

Embodiment 9

[0060] Example 9-12

[0061] In a 250ml container, as shown in Table 4, add sitosterol, oryzanol and linseed oil (containing 20% ​​oleic acid, 23% linoleic acid and 45% linolenic acid) and stir to mix, then add the aqueous solution containing soybean saponin ( Extract with hot water at 80°C for 3h, then absorb and dry the soybean saponin obtained by macroporous resin; the added amount is the mass content of soybean saponin after drying; the mass content of soybean saponin in the aqueous solution is 7.8%), stirring at 6000rpm Pre-disperse for 3 minutes, and the obtained emulsion is ultrasonically treated with 300W ultrasonic wave for 3 minutes, while using an ice-water bath to control the temperature below 15°C.

[0062] Emulsion preparation formula in the embodiment 9-12 of table 4.

[0063]

[0064] The prepared emulsion is spray-dried at an inlet temperature of 170° C. and an outlet temperature of 80° C. to obtain a powder rich in phytosterol, which has a light yellow ap...

Images