JP3136515B2 - Pollen purification method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a method for purifying pollen of a plant, in particular, for converting bee pollen collected by bees into food.

[0002]

2. Description of the Related Art Pollen is obtained by wrapping a pollen tube nucleus and a germ nucleus with a cellulosic inner membrane and covering the outside thereof with a tough outer membrane mainly composed of cellulose. The outer membrane is not decomposed by aqua regia and is therefore difficult to digest in the human stomach, but the inner membrane contains vitamins, minerals, carbohydrates, proteins, enzymes, etc. It is a valuable source of nutrients, and it has been widely desired to convert pollen into food by some kind of treatment.

[0003] By the way, when converting pollen into food, the first necessary thing is to treat the tough outer membrane of pollen.
In this regard, a device was developed to collide and crush pollen with each other by a jet stream, and the tough outer membrane was crushed by the device, pollen grains were finely crushed, and nutrients such as vitamins and minerals inside were exposed. Crushed pollen could be provided.

[0004] However, the above-mentioned ground pollen may not only have bacteria and molds such as coliforms including pathogenic Escherichia coli but also have a lively taste and smell. Difficult to use widely. Therefore, it is conceivable to heat-treat the crushed pollen with, for example, hot air. Would. Further, treatment with alcohol does not improve flavor such as fresh odor even though it has a bactericidal effect. Furthermore, in the ultraviolet irradiation treatment,
Although the surface layer can be sterilized, it does not reach the level of sterilization inside the pulverized fine granules, and furthermore, improvement in flavor such as fresh odor cannot be expected at all.

[0005]

DISCLOSURE OF THE INVENTION The present invention realizes sterilization and improvement of flavor without impairing the nutrient content of crushed pollen, and also provides purification of pollen which can be provided as a foodstuff in a manner convenient for distribution and use. The task is to obtain a method.

[0006]

As a method for purifying pollen to achieve the above object, the present invention relates to a method of adding water to crushed pollen, stirring and mixing to form a fluid hydropollen, A method for refining pollen, comprising heating at about 30 ° C. to about 95 ° C. for about 30 minutes to about 5 minutes to obtain a flowable sterilized hydropollen, and drying the sterilized hydropollen by freeze-drying. suggest.

In the present invention, the heating temperature range of the water-soluble pollen of "63 ° C. to about 95 ° C." has a lower limit of 63 ° C. necessary for sterilization of coliform bacteria as a lower limit, and an upper limit does not impair the pollen nutrients. In addition, about 95 ° C. is determined as the maximum temperature effective for improving the flavor of pollen. In addition, the above heating time "about 3
"0 minute to about 5 minutes" is determined experimentally in order to sufficiently apply the above-mentioned heating temperature to the inside of each fine grain of the crushed pollen.

According to the present invention, the crushed pollen is obtained by crushing the tough outer membrane and finely crushing the pollen grains to expose the inside. The water-infiltrated pollen is made inside, and then the above-mentioned water-soluble pollen is heated at 63 ° C. to about 95 ° C. for about 30 minutes to about 5 minutes. It spreads the whole fine grain to the inside of the fine grain, thereby maintaining the nutrients of the pollen as it is, while performing sufficient sterilization, removing the raw smell and smell, adding aroma instead, and achieving a good flavor . Hereinafter, embodiments of the present invention will be described in detail.

[0009]

Example 1 A polished pollen obtained by crushing Spanish bee pollen (pollen dango) obtained from a flower of Cistus with a conventional jet-flow crusher was used. Twice the weight ratio (20kg)
In addition, the mixture is stirred and mixed to form a slightly viscous, free-flowing hydro pollen. The added water penetrates into each granule of the ground pollen.

Next, the hydrolyzed pollen was poured into a sterilizing tank having a jacket on the peripheral wall, and steam was passed through the jacket to heat the hydrolyzed pollen at 63 ° C. for 30 minutes. After sterilization heating, cool the inside by passing cold water through the jacket of the sterilization tank,
Cool the sterilized hydro pollen to about 50 ° C.

[0011] The obtained fine granules of the bactericidal water-pollen are sterilized to the inside to kill bacteria and fungi, including coliforms, and the odor and smell disappear, and instead, a little fragrance is added. Are deactivated by heat, but nutrients such as vitamins, minerals, saccharides and proteins are retained as they are. Furthermore, in this example, almost no discoloration was observed in the orange color of the pollen of the cistus flower.

Next, the above sterilized hydrolyzed pollen is dried by a conventional freeze-drying method. First, the above-mentioned fluid sterilized hydro-pollen is poured into a bag of a synthetic resin film, sealed, and then placed on a tray, placed in a quick freezer, and rapidly frozen at -30 ° C. After freezing, the frozen tray is taken out of the freezer, and then the frozen tray is cut into its bag and placed in a vacuum pot, the heater is set at 85 ° C, and the product temperature is set at 20 ° C.
Drying under reduced pressure is performed while maintaining the temperature at ４０40 ° C.

[0013] The obtained dry sterilized pollen is a porous and easily collapsible mass, which is enclosed in a separate bag together with a desiccant and an oxygen scavenger.

In this example, for convenience of distribution and use,
The dried sterilized pollen is pulverized by a pulverizer and supplied to the market as fine particles.

[0015]

Example 2 Pulverized pollen obtained by pulverizing the pollen of Cistus in the same manner as in the above example was used. Water (20 kg) was added to the pulverized pollen (10 kg) in a weight ratio of twice (20 kg), and the mixture was stirred and mixed. Make a pollen with water, inject it into a sterilization tank and heat it at 95 ° C for 5 minutes, then cool to about 50 ° C.

The obtained bactericidal pollen is sufficiently sterilized to kill bacteria such as coliforms and fungi, has no fishy odor and smell as in the above example, and has a stronger fragrance than the above example. The flavor became even better. Vitamins, minerals, sugars and proteins are retained.

The above-mentioned flowable sterilized hydrous pollen is then dried by freeze-drying in the same manner as in the above example and then ground into fine granules.

[0018]

According to the method for purifying pollen of the present invention, the crushed pollen to be used is one in which the tough outer membrane is crushed, and the pollen grains are finely crushed to expose the inside of the particles. By adding water to the crushed pollen and stirring and mixing the polished pollen, water-infiltrated pollen in which water has penetrated into each fine particle of the crushed pollen can be prepared.
By heating at 3 ° C. to about 95 ° C. for about 30 minutes to about 5 minutes, the heat can be sufficiently applied to the whole of each fine particle of the crushed pollen to the inside of the fine particles using water as a medium. The nutrients such as vitamins, minerals, carbohydrates, proteins, etc. possessed can be sufficiently sterilized while retaining the nutrients, while removing the unpleasant taste and smell and adding aroma instead. The flavor can be imparted, and thus the obtained sterilized dried pollen can be widely used as a nutritious food material in various foods.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int. Cl. ⁷ , DB name) A23L 1/076 A23L 1/27-1/308 JICST file (JOIS) Practical file (PATOLIS) Patent file (PATOLIS)

Claims (1)

(57) [Claims] 1. Water is added to the crushed pollen, and the mixture is stirred and mixed to form a fluid hydrolyzed pollen. The hydrolyzed pollen is heated at 63 ° C. to about 95 ° C. for about 30 minutes to about 5 minutes, and then cooled. A method for purifying pollen, comprising: cooling to about 50 ° C. to obtain a flowable sterilized hydrolyzed pollen; and drying the sterilized hydrolyzed pollen by a freeze-drying method.