Legislation for home security escort “In terms of building materials, the public is most concerned about the quality of the purchase and use of home improvement materials.†At the press conference, Wan Zhendong, director of the Municipal Legislative Affairs Commission, first explained the purpose of legislation. "A reference to building materials, many people feel that their relationship with their own life is not big, but it is not true." Wan Zhendong said, do not understand the building materials as building tiles, the "Regulations" will be the quality of the core, to the administrative regulations Manage the quality behavior of construction materials.
“The safety of flooring, glue, paint, and other decoration materials affects the human body as much as food safety. Every day, we live in a space surrounded by building materials, and we must ensure its quality and safety,†Wan Zhendong said. The management of the Regulations The object is not the enterprise but the construction material itself. “We haven’t seen major quality problems in the actual structure of Qingdao, especially if there are few problems in the key materials, but there are more problems in the home decoration such as excessive materials, shrinking water, etc.†Wan Zhendong said, “When ** was established, Special consideration has been given to these problems that the public often encounters.
“It is very difficult for the public to judge the quality of many engineering materials through their own experience. We take various opinions and adopt a record-based approach to ensure the safety of the public,†said Wan Zhendong.
The reporter can check the information on the Internet. The reporter learned that the Municipal Committee on the Legal Affairs of the Municipal People's Government did not consider it mandatory to require all construction engineering materials to be filed. The Regulations were amended to read “Important for the major use functions, structural safety and possible impact on human health of construction projects. The production and management of construction engineering materials shall be subject to registration and record management, and the scope of important construction materials shall be determined by the municipal competent administrative department of construction and announced to the public."
Wan Zhendong explained the range of important construction materials. "Involved in functional problems, such as the house can not be leaked; related to structural safety, such as beams, reinforced concrete, etc.; then there are effects on human health, such as flooring, plastic, paint, etc., as well as electricity-related materials. Wan Zhendong said that these important materials will be specifically announced by the Construction Commission.
Building materials are expected to be detected on the spot. “After filing, an information platform should be set up and announced. After accepting the filing, the information will be released so that citizens who want to buy building materials will know what they can buy.†Wan Zhendong said that this is a public trustworthy government to the people. statement. “Registration and filing, supervision and inspection, investigation and handling of illegal activities, and other management information must be announced.†In addition, Wan Zhendong said that it is also necessary to issue consumer warnings and tips in due course.
"Now we have requirements. The Construction Committee also has this plan, builds some standardized markets, matches inspection equipment and inspection personnel in the market, and citizens can carry out tests at the scene when they buy."
In addition, the "Regulations" also provide for the establishment of a "recall" system. Wan Zhendong said that the unqualified materials checked out immediately stop production and operations, recover unqualified materials, and inform related operators and users. "This kind of situation can allow companies to self-check and correct themselves, resulting in a chain reaction."
Hydroxyalkyl Cyclodextrin/Hydroxypropyl Cyclodextrin Derivatives mainly including Hydroxypropyl Alpha cyclodextrin, Hydroxypropyl Beta Cyclodextrin, Hydroxypropyl Gamma Cyclodextrin, Hydroxybutyl Beta Cyclodextrin.
Cyclodextrins are donut shaped circles of glucose (sugar) molecules that bring together oil and water and have potential applications anywhere oil and water must be used together. Successful applications have been made in the areas of agriculture, analytical chemistry, biotechnology, cosmetics, diagnostics, electronics, foodstuffs, pharmaceuticals and toxic waste treatment. Stabilization of food flavors and fragrances is the largest current worldwide market for Cyclodextrin applications. We and others have developed Cyclodextrin-based applications in stabilization of flavors for food products; elimination of undesirable tastes and odors; preparation of antifungal complexes for foods and toiletries; stabilization of fragrances and dyes; reduction of foaming in foods; cosmetics and toiletries; and the improvement of quality, stability and storability of foods.
Cyclodextrins can improve the solubility and stability of a wide range of drugs. Many promising drug compounds are unusable or have serious side effects because they are either too unstable or too insoluble in water. Strategies for administering currently approved compounds involve injection of formulations requiring pH adjustment and/or the use of organic solvents. The result is frequently painful, irritating, or damaging to the patient. These side effects can be ameliorated by Cyclodextrins. Cyclodextrins also have many potential uses in drug delivery for topical applications to the eyes and skin.
Cyclodextrin Background
Cyclodextrins are formed naturally by the action of bacterial enzymes on starch. They were first noticed and isolated in 1891 by a French scientist, Villiers, as he studied rotting potatoes. The bacterial enzyme naturally creates a mixture of at least three different Cyclodextrins depending on how many glucose units are included in the molecular circle; six glucose units yield Alpha Cyclodextrin ([ACD"); seven units, Beta Cyclodextrin ([BCD"); eight units, Gamma Cyclodextrin ([GCD"). The more glucose units in the molecular circle, the greater the volume of the toroid. The inside of this [donut" provides an excellent resting place for [oily" molecules while the outside of the donut is significantly compatible with water enabling clear stable solutions of Cyclodextrins to exist in aqueous environments even when an [oily" molecule is carried within the donut hole. The net result is a molecular carrier that comes in small, medium, and large sizes with the ability to transport and deliver [oily" materials using water as the primary vehicle.
Cyclodextrins are manufactured in large quantities by mixing appropriate enzymes with starch solutions, thereby reproducing the natural process. ACD, BCD and GCD can be manufactured by an entirely natural process and therefore are considered to be natural products. Additional processing is required to isolate and separate the Cyclodextrins. The purified ACD, BCD, and GCD are referred to collectively as [natural" Cyclodextrins (NCDs).
The chemical groups on each glucose unit in a Cyclodextrin molecule provide chemists with ways to modify the properties of the Cyclodextrins, i.e. to make them more water soluble or less water soluble, thereby making them better carriers for a specific chemical. The Cyclodextrins that result from chemical modifications are no longer considered [natural" and are referred to as chemically modified Cyclodextrins. Since the property modifications achieved are often so advantageous to a specific application, the Company does not believe the loss of the [natural" product categorization will prevent its ultimate commercial use. It does, however, create a greater regulatory burden.
Hydroxypropyl Cyclodextrin Derivatives
Hydroxypropyl Beta Pharmaceutical Excipients,Hydroxypropyl Beta Cyclodextrin,Hydroxypropyl Alpha,Hydroxypropyl Alpha Beta Cyclodextrin
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