Abstract: The present invention relates to a method for dissolving metals by photocatalysis. A metal-containing material to be dissolved is dispersed in a mixed solution of photocatalyst-containing cyanide and organic chloride; then, a photocatalyst is added; next, an oxygen-containing gas or a substance which is capable of generating oxygen is introduced; and irradiation is applied for a period of time to dissolve metals. Compared with the prior method, the present invention is advantageous in moderate reaction condition, energy conservation, environmental protection, low cost, and convenient operation, and is suitable for mass industrial treatment on metal dissolution.

Abstract: The invention discloses a rice temperature sensitive male sterile gene mutant tms18 and its uses. During the study of TMS18 gene, the inventors found that the changing of fertility was related to the structural integrity of the second layer of pollen outer wall. The inventors accidentally found the thermo sensitive male sterile mutant tms18. The fertility of the mutant was affected by different temperatures and can be restored under low temperature treatment. More importantly, the fertility sensitive period of the mutant was different from that of other thermo sensitive male sterile genes. This unique feature of the gene can provide a new theoretical basis and apply value for two-line hybrid rice breeding.

Abstract: The present disclosure provides a functional beverage of dark tea with zero energy for reducing weight and lipid and a preparation method thereof, and relates to the technical field of processing health-promoting beverage. The functional beverage includes 1.5-3.5 parts of dark tea, 0.3-0.7 parts of mulberry leaf, 0.1-0.5 parts of lotus leaf, 0.1-0.3 parts of stevia leaf, and 95.4-97.4 parts of purified water. The preparation process thereof includes treatment of raw materials, circulatory microwave extraction, static settlement, membrane ultrafiltration, and ultra-high temperature instantaneous sterilization (UHT). Compared with the prior art, the functional beverage uses purely natural herb plants without any additives. The obtained product has zero sugar while has the effects of quenching thirst and reducing weight and lipid. Key technologies such as integrated formula, circulatory microwave extraction, and membrane ultrafiltration enable the best flavor and efficacy of the beverage.

Abstract: The present disclosure provides a functional beverage of dark tea with zero energy for reducing weight and lipid and a preparation method thereof, and relates to the technical field of processing health-promoting beverage. The functional beverage includes 1.5-3.5 parts of dark tea, 0.3-0.7 parts of mulberry leaf, 0.1-0.5 parts of lotus leaf, 0.1-0.3 parts of stevia leaf, and 95.4-97.4 parts of purified water. The preparation process thereof includes treatment of raw materials, circulatory microwave extraction, static settlement, membrane ultrafiltration, and ultra-high temperature instantaneous sterilization (UHT). Compared with the prior art, the functional beverage uses purely natural herb plants without any additives. The obtained product has zero sugar while has the effects of quenching thirst and reducing weight and lipid. Key technologies such as integrated formula, circulatory microwave extraction, and membrane ultrafiltration enable the best flavor and efficacy of the beverage.