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| Customization: | Available |
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| Certification: | RoHS, ISO, HACCP |
| Assay Method: | HPLC, UV |
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Curcumin is an orange-yellow crystalline powder with a slightly bitter taste. It is insoluble in water and ether, soluble in ethanol and propylene glycol, and easily soluble in glacial acetic acid and alkaline solutions. It is reddish brown in alkaline conditions and yellow in neutral and acidic conditions.
Curcumin is highly stable to reducing agents and has strong coloring properties. Once colored, it is not easy to fade, but it is sensitive to light, heat, and iron ions, and has poor light resistance, heat resistance, and iron ion resistance. And when the pH is greater than 8, curcumin will turn from yellow to red. Modern chemistry uses this property to use it as an acid-base indicator.
Package: 1.0kg / 5.0kg aluminum foil bag, 25kg / barrel.
MOQ: 1.0 kg
Storage: Avoid direct sunlight or high temperature; store this product in a cool, dry place.
Please use this product as soon as possible after opening the package.
Shelf life: 24 months.
| International logitics mode | ||
| By Air | By Express (DHL, FedEx) | By Sea |
| suitable for >50 | suitable for sampple order or <50 | suitable for >100 |
| Fast:3-7 days | Fast:3-10 days | Fast: 7-45 days |
| higher than the cost by sea | The most expensive mode just for a small amount | lowest cost |
Qingdao Borong Biotechnology Co., Ltd. is located on the beautiful west coast of Qingdao.The company mainly focuses on the extraction of natural plant active products, involving the extraction of lutein pharmaceutical raw materials and Chinese herbal medicine. It is active in the fields of health, nutrition, and additives, and has technical expertise in the fields of life sciences and animal nutrition. Qingdao Borong Biotechnology Co., Ltd. has its own production and processing plant: Qingdao Jiayi Biotechnology Co., Ltd. In 2019, Jiayi Biotechnology invested 210 million yuan in the West Coast New Area to build the "Natural Plant Extract Health Industrial Park" project, focusing on creating an integrated entire industrial chain of "base planting+leaf pigment extraction+deep processing". At the same time, Qingdao Borong Biotechnology Co., Ltd. has established marigold planting bases in Longnan, Weiyuan, and other places in Gansu, planting over 100000 acres of marigold; The company adheres to creating the market with technology, exploring the market with quality, and winning the market with reputation. Since its establishment, we have worked together to create an advanced sales system that combines online and offline.
1: Do you offer samples before placing an order?
Absolutely. We provide complimentary samples (10-30g) to our valued customers for testing before they commit to a bulk order.
2: What is the Minimum Order Quantity (MOQ)?
For sample orders, the MOQ is 1KG. For bulk orders, you have the flexibility to order the quantity that suits your needs.
3: What are the accepted payment terms?
We accept a variety of payment methods including T/T, L/C, and D/P.
4: How is the product quality confirmed?
First, we offer a Certificate of Analysis for the product you are interested in.
Additionally, a sample will be sent to you for your own quality testing.
5: How long will it take to ship the order?
Your order will be dispatched within 5 working days after we receive your prepayment.
6: Do you offer after-sales service?
Yes, we have a comprehensive after-sales service. Our commitment starts with providing high-quality products at competitive prices.Our dedicated sales and R&D teams are on hand to offer detailed product information, data analysis, and suggestions for product improvement.We also provide market feedback and other customized services tailored to your needs.If any issues arise, our prompt and efficient service will address them to ensure your satisfaction.
We continuously learn and stay ahead of market trends,with the ambition of becoming the leading brand in lutein products.Your satisfaction and success are our highest priorities.
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