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71 results about "Flax basis" patented technology

Flax basis is a moth of the Micronoctuidae family. It is found in Laos (Vientiane), in Southeast Asia.

Bleaching work fluid of flax, flax/cotton fabric and low temperature bleaching technology

The invention discloses a bleaching working fluid of the flax fabric or flax/cotton fabric and a low-temperature bleaching technology using the working fluid. One formula of the bleaching working fluid is as follows: each liter of the working fluid comprises the following ingredients: 1-20g/L of H2O2 with the concentration of 30 percent, activating agent TAED (Tetra Acetyl Ethylene Diamine) with the mol ratio of 1/15:1-1:1 with the H2O2, 0.1-10g/L of stabilizing agent, 0.1-5g/L of penetrating agent and the rest is water. The low-temperature bleaching technology adopting the bleaching working fluid formula is the bleaching technology in low-temperature bath. Another formula of the bleaching working fluid is as follows: each liter of the fluid comprises 10-50g/L of H2O2 with the concentration of 30 percent, activating agent TAED (Tetra Acetyl Ethylene Diamine) with the mol ratio of 1/15:1-1:1 with the H2O2, 0.1-10g of stabilizing agent and the rest is water. The low-temperature bleaching technology adopting the bleaching working fluid formula is cold pad-batch bleaching technology. The invention adopts the TAED as the activating agent, introduces oxydol/TAED bleaching system, has better bleaching effect, can reduce the damage of the fabrics and improves the production efficiency.
Owner:杭州鑫至投资管理有限公司

Doubled haploid production and genetic transformation

Development of an efficient and cost-effective doubled haploid production system and genetic transformation system are the prerequisite to initiate haploid breeding and genetic modification in flax respectively. Pre-culturing anthers on a high osmotic, high auxin and high mineral salt concentration for a period of time before transfer to a low osmotic, low auxin and low salt concentration significantly increased the overall efficiency of regeneration or anther efficiency than directly culturing anthers on a low osmotic, low auxin and low salt concentration medium. This culture procedure also dramatically reduced the frequency of shoot regeneration from somatic cells in anther culture. Using this procedure, a highly efficient anther culture-derived callus based transformation system was developed. The transformation efficiency of anther culture-derived callus based transformation system was four times higher than the best reported transformation efficiency using hypocotyls as the ex-plants in Agrobacterium tumefaciens based transformation system or particle bombardment based transformation system. The frequency of escape in anther culture-derived callus based transformation system was one third of that in hypocotyl-based transformation system using A. tumefaciens or one half using particle bombardment. This very high efficient transformation system will prove to be very valuable in basic research for gene discovery and practical applications in genetic engineering for improved traits.
Owner:AGRICORE UNITED

Synthetic method of flax fabric finishing agent

The invention discloses a method for synthesizing a linen cloth finishing agent. The method takes citric anhydride as a modified compound for degraded chitosan and comprises the following steps: firstly, the degraded chitosan is added into a medium according to a certain proportion and then stirred and swelled for 0.5 hour; secondly, the citric anhydride is added into the mixture according to the mass ratio of the degraded chitosan to the citric anhydride is 1 to 2-5; thirdly, a catalyst of 1 to 2 percent against the total mass is added into the mixture and reacted for 16 to 24 hours at a normal temperature; and fourthly, after the reaction is stopped, the pH value is adjusted to neutrality and the mixture undergoes pump filtration and decompression concentration, is added with 60 milliliters of ethanol, stands overnight, and then undergoes pump filtration and vacuum drying. The method has the advantages that: the synthesis method has mild reaction condition and simple and convenient operation; and the synthesized citric acylated degraded chitosan is an environment-friendly product, not only contains chitosan molecules with the antibacterial performance but also contains polybasic carboxylic acid radicals with wrinkle resistance, can simultaneously give play to the dual function of antibacterium and wrinkle resistance when used for linen cloth finishing, and is a multifunctional environment-friendly linen cloth finishing agent.
Owner:HARBIN INST OF TECH +1

Molecular marker for low linolenic acid of cabbage type rape, preparation method and application thereof

The invention belongs to the technical field of rape molecular breeding, in particular relates to a preparation method of a codominant SNP (Single Nucleotide Polymorphism) molecular marker closely linked with the linolenic acid content of a cabbage type rape and application thereof as the marker in the auxiliary selection of the low linolenic acid cabbage type rape. The low linolenic acid cabbage type rape strain A254 and high linolenic acid cabbage type rape strain A177 genomes DNA are amplified by using primers to respectively obtain two DNA amplified fragments, then cloning, sequencing and nucleotide sequences comparison are carried out on the four DNA amplified fragments; according to the difference of the sequences, the second bases at 3'-end of a forward primer and a reverse primer are mispaired, primer pairs of YQ-fad31-1, YQ-fad31-2, YQ-fad32-1 and YQ-fad32-2 are designed, the PCR (Polymerase Chain Reaction) amplification is carried out on the primer pairs of YQ-fad31-1, YQ-fad31-2, YQ-fad32-1 and YQ-fad32-2, and the PCR amplification and group detection effects are analyzed to obtain the codominant SNP molecular marker linked with low linolenic acid genes of the cabbage type rape. The invention provides a new marker for the rape molecular breeding. In the invention, a mispairing strategy of the 3'-end of the primer is firstly applied to the development and the detection of the SNP polymorphic marker of the cabbage type rape, and a means of synchronously mispairing the forward primer and the reverse primer is firstly adopted to develop the SNP marker based on the PCR amplification and an agarose gel electrophoresis in the cabbage type rape of an allopolyploid crop. The invention synchronously discloses a method for preparing the molecular marker and the application thereof.
Owner:HUAZHONG AGRI UNIV

Continuous automatic production line for flax yarn

The invention relates to the technical field of flax yarn production, in particular to a continuous automatic production line for flax yarn. The production line comprises a raw material pretreatment device, a hackling machine, an automatic flax fiber material adding device, a drawing frame and a yarn mixing machine; the automatic flax fiber material adding device comprises a traction mechanism, asplitting mechanism and a material adding mechanism; a fiber bundle obtained after overlapping and winding is transferred into the drawing frame, a fiber rod is formed, and the fiber rod is made intorough yarn through the yarn mixing machine; by means of the traction mechanism, in the process of conducting directional transfer o the flax yarn, short fiber removing and fiber bundle separation areconducted on the flax yarn by cooperating with a carding mechanism and the splitting mechanism respectively, by combining the transmission connection characteristic of a lap joint mechanism and a driving mechanism, automatic winding in the end-to-end lapping process of the fiber bundle is achieved, high-quality automatic production of flax splitting and lapping is achieved, and the technical problem that in the prior art, due to the fact that manual splitting it not uniform, the yarn quality is not stable is solved.
Owner:CHANGXING HAIPU MACHINERY TECH CO LTD

Method for mutagenizing flax seeds and screening salt-tolerance mutants

The invention relates to a method for mutagenizing flax seeds and screening salt-tolerance mutants. The method comprises the steps that firstly, 0.2-0.8 wt% of an ethylmethane sulfonate solution is used for carrying out steeping mutagenizing treatment on flax seeds, treatment is carried out for 4-16 h at the room temperature, and the mutagenized flax seeds are obtained; secondly, the mutagenized flax seeds are sown in a pot filled with gravel, culture is carried out under normal illumination and at the room temperature, a PNS nutrient solution with the concentration of NaCl ranging from 50 mmol/L to 200 mmol/L is used for irrigation everyday, and the growth condition is observed for two continuous weeks; finally, plants in a good growth state are screened-out M1 generation salt-tolerance plants. The method for culturing and screening the salt-tolerance mutants is beneficial to obtaining new salt-tolerance varieties in a later stage; a gravel culture method is adopted, the PNS nutrient solution with different concentrations of NaCl is poured regularly, and convenience is provided for subsequent result analysis; the method of ethylmethane sulfonate mutagenizing and the method of oriented screening of salt-tolerance mutant plants are combined, use is convenient, and the screening efficiency is high.
Owner:XINJIANG UNIVERSITY
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