2019年11月29日星期五

Introduction to 3-indolycarbinol



Indole-3-Methanol is a hormone used to stimulate plant growth, which is widely used in agricultural production.
Properties of 3-indolycarbinol
Indoleacetic acid is an organic substance. The pure product Purple Sweet Potato Powder is colorless phylloid crystal or crystalline powder. Rose in light. Melting point 165-166  (168-170 ). Soluble in anhydrous ethanol, ethyl acetate, dichloroethane, soluble in ether and acetone. Insoluble in benzene, toluene, gasoline and chloroform. Insoluble in water, Indole-3-Carbinol its aqueous solution can be decomposed by ultraviolet light, but it is stable for visible light. Its sodium salt and potassium salt are more stable than acid itself, and are very soluble in water. It is easy to decarboxylate to 3-methylindole. It has duality to plant growth. Different parts of plant have different sensitivity to it. Generally, root is bigger than bud than stem. Different plants have different sensitivity to it.
Preparation method editor
3-Indolylcarbinol was produced by the reaction of indole, formaldehyde and potassium cyanide at 150 , 0.9-1mpa, and then hydrolyzed under the action of potassium hydroxide. Or by the reaction of indole with glycolic acid. In a 3L stainless steel autoclave, add 270g (4.1mol) 85% in potassium hydroxide, 351g (3mol) indole, and then slowly add 360g (3.3mol) 70% aqueous solution of hydroxyacetic acid. Heat to 250  and stir for 18h. Cool to below 50 , add 500ml of water, and stir at 100  for 30min to dissolve potassium indole 3-acetate. Cool to 25 , pour the autoclave material into water, and add water to the total volume of 3L. Extract with 500ml ether, separate water layer, acidify with hydrochloric acid at 20-30 , and precipitate indole-3-acetic acid. Filter, wash in cold water, dry in dark, and obtain 455-490g of the product.

2019年11月25日星期一

The 21th CHINASHOP is waiting for you!!


CHINASHOP Small Portable Receipt Printer is held by CCFA, now it has become annual professional expo after 20 years development 
since 1999. The CHINASHOP 2019 will be held at Qingdao Panel Receipt Printer
As the specialized receipt printer manufacturer in this field, SPRT is invited to this expo. SPRT will show
full seriez products Label Printer Supplies, and complete solution for retail by that time, including many new products models. 
Welcome all of you from different fields to visit our booth, and experience the newest printing technology(WIFI POS Printer).
Expo time: Nov.7th~9th
Expo address: Qingdao World Expo City
Hall: S6034

2019年11月22日星期五

Varieties of Mangifera indica extract



Mango fruit is kidney shaped, and the main varieties are native mango and Mangifera indica extract. Before ripening, the skin of native mango is green, while that of exotic mango is dark purple. When native mango is mature, the skin color is unchanged, while that of exotic mango is orange or red. Mango flesh juicy, sweet taste, soil mango seeds large, fiber, foreign species without fiber.
An evergreen tree native to India having leathery leaves and alternate growth; warm, small flowers, yellow or reddish, terminal panicles, Mangiferin and poor light gray wood. Also used as having game names, and some nicknames. Mango Leaf Extract contains sugar, protein and crude fiber, and the precursor carotene of vitamin A in mango is very high, which is rare in all fruits. Secondly, the content of vitamin C is not low. Minerals, proteins, fats, sugars, etc. are also the main nutrients. Mango is one of the famous tropical fruits. Because of its delicate flesh and unique flavor, it is deeply loved by people, so it is known as the "king of tropical fruits".
Efficacy: Nourishing Yin and kidney. For kidney deficiency. Invigorating stomach and eliminating food; resolving phlegm and promoting qi. Main diet stagnation; anorexia; cough; hernia; orchitis.
Mango is a famous tropical fruit, known as the king of tropical fruits. Mango production is distributed in more than 100 countries in Asia, South America, North America, Africa and Oceania(Astaxanthin Supplier), with a cultivation area of more than 2 million hectares and an annual output of more than 16 million tons. China is one of the major mango producing countries. Mango production is distributed in Taiwan, Guangdong, Guangxi, Hainan, Fujian, Yunnan, Sichuan and other provinces. Mango, with its unique flavor and high vitamin content, has a certain position in the world production and trade.