Preparation method of prunus armeniaca kernel oil microcapsules
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A technology of almond oil and big flat apricot, applied in the production/processing of edible oil/fat, edible oil/fat composition, etc., can solve the problems of inconvenient use and storage, easy oxidation of oil and short storage period, etc. Solve the effects of easy oxidation, short time and long shelf life
Inactive Publication Date: 2018-02-23
SHAANXI NORMAL UNIV
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[0005] In order to solve the problems existing in the prior art, the present invention discloses a preparation method of almond oil microcapsules of apricot apricot, using the apricot apricot kernel as a material, and extracting the almond oil of apricot apricot with an ultrasonic assisted extraction method, and using soybean Isolate protein and maltodextrin as wall materials, and use spray drying method to prepare almond oil microcapsules of almond oil, so as to solve the problems of easy oxidation of oil, short storage period, and inconvenient use, storage and transportation
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preparation example Construction
[0029] The preparation method of almond oil microcapsules comprises the following steps:
[0030] Step 1, adding 1g of almond powder to each 12ml of petroleum ether, and extracting the almond oil from the almond oil by ultrasonic-assisted extraction, the ultrasonic frequency is 60Hz, the ultrasonic power is 270W, and the extraction time is 25min;
[0031] Step 201, mixing soybean protein isolate and maltodextrin as a solid, dissolving in distilled water at 48°C to 52°C, and stirring for 30 minutes at the same time, keeping the resulting mixed solution at 48°C to 52°C, wherein the soybean protein isolate and malt The ratio of dextrin mass is 0.3;
[0032] Step 202, slowly add soybean lecithin and almond oil obtained in step 1 to the mixed solution obtained in step 201, and perform ultrasonic emulsification. The parameters of ultrasonic emulsification are power 390W, frequency 50Hz, interval 1s, working for 3s, and emulsification time 5min, to obtain emulsification Liquid, wher...
Embodiment 1
[0035] Example 1, according to the different content of the core material relative to the solid content, the content of other components is determined unchanged, the solid content is 30%, the ratio of soybean protein isolate to maltodextrin is 1:2, and the content of soybean lecithin is 3%. , the content of almond oil is 20%, 25%, 30%, 35%, 40%, 45%, respectively, when the core material accounts for 30%, 35%, and 40% of the solid content, the embedding of the wall material to the core material When the core material accounts for 35% of the solid content, the embedding rate reaches a peak of 80.34%.
Embodiment 2
[0036] In Example 2, the core material is set to account for 20% of the solid content, and the solid content is 30%. The ratios of soybean protein isolate and maltodextrin are 1:3, 1:2, 1:1, and 2:1, respectively. It was carried out at 3:1, and the embedding rate of the final microcapsules was detected. The ratio of soybean protein isolate to maltodextrin was 1:2 and the embedding rate reached a peak value of 75.88%.
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Abstract
The invention discloses a preparation method of prunus armeniaca kernel oil microcapsules. Prunus armeniaca kernels are used as raw materials, the prunus armeniaca kernel oil is extracted by an ultrasonic-assisted extraction method, soy protein isolate and maltodextrin are used as wall materials, liquid prunus armeniaca kernel oil is made into powdery microcapsules by an embedding method, and prunus armeniaca kernel oil microcapsule products are prepared by a spray drying method, so that the difficult problems that oil is easy to oxidize, the storage period of the oil is short, and the oil isinconvenient to use, store and transport are solved. The preparation method is simple. The ratio of core materials to solid contents is 0.35, the ratio of the soy protein isolate to the maltodextrin is 0.30, the content of the wall materials is 0.28g/mL, the content of soybean lecithin is 0.04g/mL, and the embedding rate and other properties of the microcapsules are combined to obtain the best effect. The prepared prunus armeniaca kernel oil microcapsule products are milky white powder, are 13.87 [mu]m in particle size, and have light delicate fragrance; the embedding rate of the prunus armeniaca kernel oil microcapsules is 89.98%, the water content is 2.46%, the solubility is 94.35%, and the prunus armeniaca kernel oil microcapsules have a certain fluidity. The preservation properties ofthe prunus armeniaca kernel oil microcapsules are good, and the shelf life can achieve 2 years.
Description
technical field [0001] The invention belongs to the field of oil microcapsule preparation, and in particular relates to a method for preparing almond oil microcapsules from almonds. Background technique [0002] Microcapsule technology refers to the technology of using film-forming materials to embed solid, liquid and even gaseous substances to form tiny particles with a semi-permeable or dense capsule structure. It can protect the core material from adverse environmental factors such as temperature, pH, light, oxygen, etc., thereby improving the stability of powder products, extending shelf life, controlling the release of core materials and expanding the application range of core materials. . The process of embedding is called microencapsulation, and the tiny particles formed are called microcapsules. [0003] The core material is the main component of the microcapsules, and the oil acts as the core material during the preparation of the oil microcapsules. The wall mate...
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