JPS61139382A - Method of cultivating photosynthetic mold and device therefor - Google Patents

Abstract

PURPOSE:'To cultivate continuously photosynthetic molds in a culture tank with light rays irradiated by a light emitting tube night and day, by condensing visible light rays such as sunlight, electric light, etc. by a condenser, and introducing the light rays through an optical fiber into the light emitting tube set in the culture tank. CONSTITUTION:Visible light rays such as sunlight, electric light, etc. are condensed by the condenser 6, introduced through the optical fiber 7 into the light emitting tube 3, and photosynthetic molds in the culture tank 1 are cultivated with light rays irradiated by the light emitting tube 3 continuously night and day. Consequently, since sunlight is used in day, electric light in night, the photosynthetic molds can be cultivated with a small amount of electric power.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for culturing photosynthetic bacteria and its eleventh aspect.

Conventional technology When photosynthetically culturing fragile single-celled bacteria, conventionally, batch culture was often carried out in a single tank, and it was customary to have a lighting device built into the tank and carry out photosynthesis using artificial light. .

Problems to be Solved by the Invention However, such conventional culture methods have the problem of being uneconomical because they use electricity continuously throughout the day and night.

An object of the present invention is to solve these problems and provide a power-saving photosynthetic bacteria culture method and apparatus that can utilize sunlight during the day and artificial light at night.

Means for Solving the Problems In order to solve the above problems, the photosynthetic bacterium culture method of the present invention focuses visible light such as sunlight or power rays using a concentrator,
This was guided through an optical fiber to an arc tube installed in a culture tank, and the photosynthetic bacteria in the culture tank were continuously cultured day and night by the light irradiated by the arc tube. In addition, in order to carry out this method, a photosynthetic bacterium culturing device is comprised of a culture tank main body, a transparent cylinder provided through the center of the culture tank main body, and a light emitting tube disposed inside the transparent cylinder. tube and
It is equipped with a concentrator that collects visible light such as sunlight and power rays, and the arc tube and the concentrator are connected by an optical fiber.

Example An embodiment of the present invention will be described below based on the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes an 18-well tank main body, and a glass tube 2 is provided through the center thereof. Reference numeral 3 denotes a plurality of light emitting tubes arranged inside this glass tube 2, each of which emits light 1
1-3 is connected via an optical fiber 7 to a concentrator 6 that collects visible light such as sunlight 4 and power light 15.

As is clear from the figure, the culture tank body 1 has a semi-cylindrical bottom and a flat top covered with a transparent glass plate 8. 9. Reference numerals 10, 11, and 12 are partition plates that divide the inside of the culture tank body 1 into multiple parts in the longitudinal direction.The partition plates 10 and 12 have a height that almost reaches the transparent glass 8, and the culture solution 13 is separated from the adjacent room at the lower end. A communication hole 14 is provided that leads to.

On the other hand, the height of the partition (rings 9 and 1) is slightly higher than that of the glass I! 2, that is, it is lower than the partition plate 10.12, and is designed to lead the culture solution 13 into the next room by overflow. Therefore, the communication holes 14 are not provided in the partition plates 9 and 11. 15 is a culture solution inlet pipe provided at the bottom of the culture tank body 1 corresponding to the rightmost chamber, and 16 is a culture solution inlet pipe provided at the bottom of the culture tank body 1 corresponding to the rightmost chamber. This is a culture solution outlet pipe provided at the top of the culture tank main body 1 corresponding to the room.
A stainless steel air sparger 17 is installed at the bottom of one side of each chamber, and serves to circulate and stir the culture solution 13 in each chamber by air lift. 18
A cooling pipe is provided through the other side of each room, and serves to maintain the temperature of the culture solution 13 at a constant temperature.

Reference numeral 19 indicates cold W water passed through this cooling pipe 18. on the other hand,
The transparent glass plate 8 is treated with air v! I20 and an inspection port 21 with a lid are provided, and a filter 22 is interposed at the base of the air vent pipe 20 to prevent bacteria from directly coming out.

With such a configuration, the present device is installed outdoors, and during the daytime, sunlight 4 is collected by the concentrator 6 and guided to the arc tube 3 through the optical fiber 7. Thereby, the photosynthetic bacteria in the culture tank main body 1 are photosynthetically cultured by both the light emitted by each arc tube 3 and the sunlight that directly passes through the transparent glass plate 8. At this time, the culture medium 113 flows from the rightmost room to the next room while being circulated and stirred by the spar shear of the air sparger 17, but since the glass n2 also acts as a baffle plate, the culture medium 113 is flowed from the rightmost room to the next room. Stirring and flow of the liquid 13 will be facilitated. Note that it is obvious that installing only the condenser 6 outdoors would be costly. On the other hand, at night, the power light 11 with a wavelength within 400 to 800 rv is used with the condensing i56.
) 5 and pass it through the optical fiber 7 to the arc tube 3.
lead to. Further, if necessary, the transparent glass plate 8 is directly irradiated with artificial light. In this way, photosynthetic bacteria can be cultivated continuously throughout the day and night! I do it.

According to this embodiment, the culture solution 13 is circulated and stirred by the air sparger 17, so that the culture solution 13 can be circulated and stirred. 1. Excessive shearing force is not applied to the bacterial cells, and damage to the bacterial cells can be prevented. In addition, since the air purge p-17 is operated 24/7, there is no need for the national body to adhere to the glass cylinder 2.1. Effects of the Invention According to the present invention, sunlight is used during the day and electric light is used at night. This allows photosynthetic bacteria to be cultured with less electricity.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a plan view of the main culture apparatus (the condenser is shown in a side view for convenience), and FIG. 2 is a cross-sectional view of the culture tank main body.

Claims (1)

[Scope of Claims] 1. Visible light such as sunlight or power rays is collected by a concentrator and guided through an optical fiber to an arc tube installed in a culture tank, and the light irradiated by the arc tube is used to collect visible light rays. A method for culturing photosynthetic bacteria, which is characterized by continuously culturing photosynthetic bacteria in a culture tank throughout the day and night. 2. A culture tank body, a transparent cylindrical body provided through the center of the culture tank body, a luminous tube disposed inside this transparent cylinder, and visible light such as sunlight and power rays. 1. A photosynthetic bacterium culture device comprising: a light condenser for concentrating light; the light emitting tube and the concentrator are connected by an optical fiber.