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Simple and environmentally friendly method for facilitating high yield of duckweed starch

A starch and high-yield technology, applied in botany equipment and methods, soilless cultivation, application, etc., to achieve the effect of promoting high accumulation, high yield, and high-efficiency industrial production

Inactive Publication Date: 2018-05-01
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, solve the problem of simple production of green and environment-friendly bio-energy under conventional culture conditions, and provide a practical method for promoting high-yield purple duckweed starch that is simple and environment-friendly

Method used

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  • Simple and environmentally friendly method for facilitating high yield of duckweed starch
  • Simple and environmentally friendly method for facilitating high yield of duckweed starch
  • Simple and environmentally friendly method for facilitating high yield of duckweed starch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The photoperiod of the culture will be 12h light / 8h dark, and the light intensity will be about 100μmol / m 2 · s, at a temperature of 22°C, 50ml triangular culture flasks were cultured and multiplied for 1 week, and placed in a large plate, and as far as possible, pick 6 strains of the same growth state as possible. They were transferred into Datko culture medium with different concentrations of penicillin of 0 ppm, 50 ppm, 100 ppm, 150 ppm, 200 ppm, 300 ppm and 500 ppm corresponding to each group, and cultured for 12 days. The culture conditions are also the photoperiod 12h light / 8h dark, and the light intensity is about 100μmol / m 2 · s, the temperature is 22°C. After 12 days, Ziping was treated as follows:

[0043] 1. Observe and count the number of thallus in each bottle of culture material. Mature and immature fronds were separated and counted individually. The results are attached figure 2 and 3 As shown, by the 12th day, by figure 2 photos and image 3 Th...

Embodiment 2

[0067] In order to further illustrate the effects of 100ppm cyanin on the growth and starch accumulation of Zipingia chinensis at different times, the control and 100ppm qingxinin were treated with 100μmol / m2·s light intensity and 16h light cycle respectively. Under the conditions of / 8h darkness and a temperature of 22°C, they were cultured for 10, 12, 14, and 16 days, respectively.

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Abstract

The invention discloses a simple and environmentally friendly method for facilitating high yield of duckweed starch. Maleic hydrazide as low-toxicity pesticide with action concentration of 100 ppm iscultured for a short time in 60% of Datko culture solution under conventional culture conditions, and high-level accumulation of the duckweed starch can be facilitated. By the technology, special culture facilities are not required, moreover, treatment steps are simple, and the circumstance that culture media are changed continuously is not required. The residual period of the maleic hydrazide asthe pesticide is short, and environmental pollution and secondary pollution are avoided. 100 ppm of the maleic hydrazide has a remarkable inhibition effect on growth of duckweed, the photosynthetic capacity of the duckweed is facilitated to a certain degree, and accumulation of starch of photosynthetic products is improved effectively. A simple and environmentally friendly practical technology isprovided for industrial development of starch biomass energy by the duckweed.

Description

technical field [0001] The invention belongs to the technical field of biomass energy. The invention relates to a method for promoting the high yield of purple duckweed starch, which can promote high-level accumulation of purple duckweed starch, is mainly used for increasing the starch yield of artificially cultivated duckweed starch, and can be popularized in the field of development and application of duckweed starch biomass energy. Background technique [0002] Duckweed is a higher aquatic plant belonging to the family Lemnaceae. It is small in size and simple in structure. It reproduces mainly through asexual reproduction. Under suitable growth conditions, the number of individuals can double within 2 days, and the photosynthetic efficiency of duckweed is High, strong ability to synthesize starch (28 tons / ha / year, much higher than 6 tons / ha / year of corn) (Cheng and Stomp, 2009; http: / / faostat3.fao.org , 2015), the requirements for the growth environment are relativel...

Claims

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Application Information

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IPC IPC(8): A01G22/00A01G31/00C05G3/00
CPCC05B7/00C05G5/20C05C5/00C05C5/02C05C5/04C05C11/00C05D1/02C05D3/00C05D5/00C05D9/02C05F11/00
Inventor 朱晔荣姬晓橼冯国栋徐莹莹白艳玲王勇
Owner NANKAI UNIV
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