Process of Propolis Extract
1. Pre select and grade raw materials to remove impurities. 2. Put the pre selected raw materials into the refrigerator at - 18 ℃for 48h. 3. Raw materials shall be crushed in crusher after freezing. It's easy to break under - 5 ℃. 4. The crushed raw materials are put into the vibrating screen (14 mesh), and the particles larger than 14 mesh are returned to the refrigerator. 5.Put the crushed and screened raw materials into the immersion kettle with reflux condenser. Add 90% ethanol [propolis (weight):ethanol (volume = 1:4) ], stir for 6h at room temperature, stand for 2h, discharge the supernatant, add 90% ethanol, repeat the
above process for 3 times, and combine the solution. During the impregnation, the temperature is about 25 ℃. 6. After immersion, the solution enters the cooling reaction kettle, circulates in the adding sleeve for cooling, mechanically stirs and cools to
below 5 ℃. 7. Filter the cooled solution with a filter. When the solution temperature is less than 5 ℃, the beeswax can be separated out and filtered out with the filter residue. 8. The filtrate enters the decompression evaporator and the water bath is
heated. When the temperature is less than 50 ℃, the evaporation of volatile oil and the thermal denaturation of effective components can be reduced. 9. The evaporated ethanol vapor is recycled by the condenser and injected into the solvent storage tank for recycling. 10. After the evaporated propolis is injected into the mold, it becomes (pure propolis) commodity.
What is TTL? Targeted Trade Leads is a new optional online e-mail service we provide to Wholesale Suppliers on demand. By using this service you can easily send tens, hundreds or even thousands of buy sell offers to importer exporter companies, directly to their Inbox! You can send TTL to Importers Exporters by Industrial Categories.
Step 1: Select country or countries for your targeted buy - sell offers. Step 2: Select industrial category / categories for your import - export demands. Step 3:
View how many companies will receive it based on your selection. Step 4: Enter your offer you wish to email to interested suppliers or buyers. Step 5: Receive confirmation of delivered Targeted Trade Leads by e-mail. Finally Just expect the replies immediately in your mailbox! Even by phone or fax.
Statistics: Companies: 640,800+, Trade Leads: 160,200+, Products: 104,100+, Contacts / Replies: 8,284,400+Privacy Policy Important Notice! TradeHolding.com B2B Network does not provide an escrow service! Any member who asks you to pay for their products by Western Union to an agent of "TradeHolding.com B2B Network" is fraud and should be immediately reported to us. Do not pay anything to any member who states your money will be added to TradeHolding.com safety deposit account!
All Trade Leads / Offers / Products / Company Profiles / Images and other user-posted contents are posted by the user and B2B TradeHolding.com and TradeHolding.com B2B Network shall not be held liable for any such content. However, TradeHolding.com B2B Network respects the intellectual property, copyright, trademark, trade secret or any other personal or proprietary third party rights and expects the same from others. For concerns, please contact us.
US, Canada, UK, China, India, Malaysia, United Arab Emirates, Australia and New Zealand Companies
Quick Guide