Abstract: A PTFE composite powder, a preparation method thereof, and a composite material containing the same are provided. The PTFE composite powder includes the following components: a PTFE powder, an inorganic powder, and a surface treatment agent. The inorganic powder is coated on a surface of the PTFE powder to form an inorganic powder layer, and the surface treatment agent is coated on the inorganic powder layer. For the composite material obtained by the present invention, the compatibility between the PTFE composite powder and matrix polymer is better than that of the prior art, leading to larger addition amount, and smaller dielectric constant and dielectric loss of the composite material, thus suitable for being used as 5G materials.

Abstract: The present invention discloses a production method of enzymatic reaction using adenosine instead of ATP. The method comprises the following steps: (1) adding ATP regeneration enzyme, AK enzyme and adenosine in proportion to carry out an enzymatic reaction in an enzymatic reaction system; (2) separating the ATP regeneration enzyme and AK enzyme by either directly separating ATP regeneration enzyme and AK enzyme immobilized in a reaction tank or separating free ATP regeneration enzyme and AK enzyme by an ultrafiltration membrane in a filter; and (3) separating and purifying the filtrate of step (2) to obtain a product. The disclosed method provides: greatly reduced industrial production costs; faster reaction rate; stable enzyme recovery system that is energy efficient and environmentally friendly; and capability of reusing the byproducts or collecting them for the production of ATP.

Abstract: The present invention relates an enzymatic method for preparing glutathione, comprising the following steps: (1) producing glutathione in a reactor using GshF enzyme, ATP regeneration enzyme and AK enzyme; (2) separating immobilized GshF enzyme, ATP regeneration enzyme and AK enzyme in the reactor, or separating free GshF enzyme using a filtration device; (3) separating the filtrate obtained in step (2) to obtain a crude product GSH and a small amount of ATP, ADP and AMP; and (4) subjecting the GSH obtained in step (3) to concentration, crystallization, and drying to prepare a finished GSH. The described method provides: greatly reduced industrial production costs; faster reaction rate; stable enzyme recovery system that is energy efficient and environmentally friendly; and capability of reusing the byproducts or collecting them for the production of ATP.

Abstract: The present invention discloses an enzymatic method for preparing glutathione (GSH), comprising the following steps: (1) producing glutathione in a reactor using GshF enzyme, ATP regeneration enzyme and AK enzyme; (2) separating immobilized GshF enzyme, ATP regeneration enzyme and AK enzyme in the reactor, or separating free GshF enzyme using a filtration device; (3) separating the filtrate obtained in step (2) to obtain a crude product GSH and a small amount of ATP, ADP and AMP; and (4) subjecting the GSH obtained in step (3) to concentration, crystallization, and drying to prepare a finished GSH. The disclosed method provides: greatly reduced industrial production costs; faster reaction rate; stable enzyme recovery system that is energy efficient and environmentally friendly; and capability of reusing the byproducts or collecting them for the production of ATP.

Abstract: The present invention discloses a production method of enzymatic reaction using adenosine instead of ATP. The method comprises the following steps: (1) adding ATP regeneration enzyme, AK enzyme and adenosine in proportion to carry out an enzymatic reaction in an enzymatic reaction system; (2) separating the ATP regeneration enzyme and AK enzyme by either directly separating ATP regeneration enzyme and AK enzyme immobilized in a reaction tank or separating free ATP regeneration enzyme and AK enzyme by an ultrafiltration membrane in a filter; and (3) separating and purifying the filtrate of step (2) to obtain a product. The disclosed method provides: greatly reduced industrial production costs; faster reaction rate; stable enzyme recovery system that is energy efficient and environmentally friendly; and capability of reusing the byproducts or collecting them for the production of ATP.