JP2923919B2 - Edible oil suspension containing ground alga and its production method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention crushes (polishes) algae dry powder of algae such as freshwater / marine unicellular algae and brown algae containing a large amount of highly unsaturated fatty acids, carotenoids and other physiologically active substances in the algae. Edible oily suspension and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, glass beads having a diameter of 0.5 to 1.5 mm and having a diameter of 0.5 to 1.5 mm are filled with 80 to 85% of the capacity of a cylinder when crushing the cell wall of Chlorella algae into fine powder. While continuously feeding the aqueous suspension of chlorella powder having a chlorella concentration of 10 to 25% by weight adjusted to 10 ° C. or less into the closed cylinder of the continuous wet pulverizer, the glass beads and the chlorella powder were Water suspension of the body,
It is known to mix, rotate and finely pulverize the slurry immediately after crushing to 40 ° C or less, immediately cool the slurry to 10 ° C or less, and then dry. No. 32351).

[0003] However, in the conventional method of crushing chlorella alga powder as an aqueous suspension, it is necessary to dry the crushed slurry to obtain dried algal powder. The material to be dried may be deteriorated by heat.In the case of freeze-drying, although the heating temperature is low, the processing cost is high and the spongy body after drying is oxidized by the influence of oxygen in the crushing treatment. There is a risk that.

[0004]

Accordingly, the present invention provides a
-Algae containing a large amount of carotenoids including carotene, eicosapentaenoic acid, docosahexaenoic acid or arachidonic acid to feed edible dry powders of monocellular algae containing a large amount of highly unsaturated fatty acids such as unstable carotenoids and It is an object of the present invention to crush dry algal cells without losing the polyunsaturated fatty acids, and to obtain an oily suspension for food containing the crushed product and an active ingredient contained in algae.

[0005] The present invention also provides a method for drying a large brown algal seaweed powder for edible use, and for providing the dried algal body powder for edible use, without damaging carotenoids and other active ingredients. An object of the present invention is to crush the powder and obtain an oily suspension for food containing the crushed product and an active ingredient contained in algae.

[0006]

According to the present invention, glass beads having a diameter of 0.5 to 1.5 mm of a continuous closed-type pulverizer are prepared by using 8 beads.
While the mixed oil obtained by mixing and stirring 10 to 40% (w / w) of algal cell dry powder of microalgae with edible oil is injected into a cylinder filled with 0 to 90% (w / v), rotation in the cylinder is performed. The wings are rotated at a peripheral speed of 7 to 20 m / sec, and the mixed oil and the glass beads are stirred and mixed, and the algal cells in the mixed solution are crushed (crushed). And a method for producing an edible oily suspension containing a ground alga body.

Further, the present invention relates to a continuous closed pulverizer,
80-90% glass beads with a diameter of 0.5-1.5 mm
(W / v) Dried algal cells of brown alga seaweed were pulverized to 30 mesh or less in a filled cylinder.
0 (w / w) is mixed with edible oil while stirring, and the rotating blades in the cylinder are rotated at a peripheral speed of 7 to 20 m / sec while stirring and mixing the glass beads and the mixed liquid. ,
This is a method for producing an edible oily suspension containing a ground alga body by crushing (grinding) the alga bodies in the mixed solution.

[0008] The alga in the present invention refers to Spilrulina containing a large amount of β-carotene and other carotenoids.
Genus, means algae body dry powder of microalgae such as Haematococcus, and eicosapentaenoic acid,
Monodus, Isochyrsis genus, Nannochloropsis containing a large amount of highly unsaturated fatty acids such as docosahexaenoic acid or arachidonic acid
sis), Phaeodactylum, Porphyridium or Dunalella
iella) means dry powder of alga bodies of microalgae. In the case of brown seaweed kelp, seaweed, etc., 3
It means the alga body dry powder pulverized to 0 mesh or less.

The edible oil used in the present invention can be used for foods such as perilla oil, evening primrose oil, safflower oil, corn oil, rapeseed oil, peanut oil, olive oil, soybean oil and sesame oil, especially health foods. It means plant-derived one, and it means edible oil with high fluidity.

[0010] In the present invention, the algal body dry powder 10 to 40
% (W / w) is mixed with edible oil and crushed as a mixed oil by the frictional action between algae dry powder and glass beads.
Because the algal dry powder is crushed, it has good fluidity as a medium and can be used for food together with the crushed algal bodies without removing the medium, and also suppresses the alteration of the active ingredient of the algal bodies. Because you can do it. Further, the mixing amount of the algal dry powder was set to 10 to 40% (w / w) because
If it is less than 0%, the amount used is small, the content of the active ingredient is also reduced, the commercial value is reduced, and the working efficiency is deteriorated,
If it exceeds 40%, the breaking efficiency is significantly reduced. In addition, the particle size of the dried algal cells of the brown alga seaweed is 30 mesh.
The reason is as follows, because the fluidity in the crushing treatment is improved and the crushing can be efficiently performed in oil. In addition, vitamin E can be added to the edible oil or the mixed oil in order to prevent oxidation of the components in the algae and the edible oil.

In the crushing treatment of the present invention, if the diameter of the glass beads is less than 0.5 mm, the fluidity of the mixture becomes poor, the oily suspension is deteriorated by frictional heat, and the diameter of the suspension becomes 1.5 mm. If it exceeds, the crushing efficiency decreases, and the filling amount of glass beads into the cylinder is 80 to 90%.
(W / v) is because the crushing process can be performed efficiently, and the rotation of the rotor in the cylinder is 7 to 20 m.
The reason why / sce is set is that the crushing efficiency is poor at less than 7 m / sec, and that the material to be treated is deteriorated by excess frictional heat at more than 20 m / sec.

The edible oil-containing crushed alga bodies obtained by crushing (grinding) the dried alga body powder of a single cell alga or the dried alga body powder crushed to 30 mesh or less in the present invention. The suspension can be encapsulated as is in a soft capsule to make a capsule food, and butter, margarine,
It is a useful suspension food that can be used for adding to mayonnaise, dressing or canned oiled tuna, or for cooking.

[0013]

Example 1 Continuous wet pulverizer (trade name: Dino Mill)
KD-25C type), use 1mm diameter glass beads
% (W / v)) An oil suspension obtained by mixing 9.7 kg of dry powder of Nannochloropsis alga bodies and 5 kg of vitamin E in 36 kg of perilla oil was injected into the filled cylinder at a flow rate of 25 l / hr. 13m peripheral speed of the rotor inside
By rotating the suspension at / sec, a perilla oil suspension of the crushed Nannochloropsis alga was continuously obtained.

[0014]

Example 2 Continuous wet pulverizer (trade name: Dino Mill)
KD-25C type), glass beads with a diameter of 1 mm
% (W / v), 7.5 kg of dried kelp powder passed through 40 mesh into safflower oil.
While the oil suspension mixed with 5 kg was injected at a flow rate of 20 l / hr, the rotor in the cylinder was rotated at 10 m / sec to continuously obtain a safflower oil suspension of the crushed kelp.

[0015]

According to the present invention, a dry algal cell powder can be suitably crushed in edible oil without impairing the active ingredients of freshwater / marine unicellular algae and brown algae marine algae, Moreover, the resulting product contains an algal component effective for the human body in vegetable oil, and an edible oily suspension useful as an oily food material, an oily food additive, or other food material is obtained. It was done.

Claims (3)

(57) [Claims] 1. An edible vegetable oil containing algal dry powder 10 of algae.
An edible oily suspension containing a ground algae body obtained by crushing a mixed oil containing ４０40% (w / w). 2. A continuous closed pulverizer having a diameter of 0.5 to 0.5 mm.
In a cylinder filled with 80-90% (w / v) 1.5 mm glass beads, dry algal cells of microalgae 10
４０40% (w / w) is mixed with edible oil while stirring, and the rotating blades in the cylinder are rotated at a peripheral speed of 7 to 20 m / sec while stirring and mixing the glass beads with the mixed oil. And crushing the alga bodies in the mixed oil. 3. A continuous closed type pulverizer having a diameter of from 0.5 to 3.
In a cylinder charged with 1.5-mm glass beads of 80-90% (w / v), 30 dried algal cells of brown algae were placed.
Algae dry powder 10-40% (w /
w) was mixed with the edible oil while the mixed oil was stirred and the rotating blades in the cylinder were rotated at a peripheral speed of 7 to 20 m / sec to mix and mix the glass beads and the mixed oil. A method for producing an edible oily suspension containing a ground algae alga body, which comprises crushing the alga body.