Grape seed proanthocyanidin membrane separation technology?

There are different opinions about grape seed whitening. Some say that there are some that can't be said. There are several functions of grape seed that have been transmitted: whitening, blemishes, anti-oxidation, sunscreen, and acne. There are also many brands of grape seed, French, American, Australian, and now there are several relatively large brands in China. In fact, as far as the effect we want now, what we want is the proanthocyanidins in the grapes, which are antioxidant-resistant. Only the grape seed capsules contain the intact original cyanine. So do you know how the original anthocyanins come from?

Proanthocyanidins are a general term for a large class of polyphenolic compounds widely found in Plant Kingdom. They have many biological activities and pharmacological effects such as anti-oxidation, anti-aging, anti-tumor, anti-radiation, prevention of platelet aggregation, and enhancement of cardiovascular activity. The study found that in many plant tissues, the content of proanthocyanidins in grape seed and pine bark extract was higher. The following describes the application of grape seed proanthocyanidin extraction.

The micro- and ultra-filtration membrane separation process is used to separate and purify the oligomeric proanthocyanidins from grape seeds. The grape seed extract is firstly subjected to microfiltration to obtain a clear filtrate, which is separated and concentrated by ultrafiltration/nanofiltration. Compared with the traditional process of heat concentration, the process introduces high-tech membrane separation technology, the process is simple, efficient, and consumes less energy. The product quality index is close to high-end products and is suitable for industrial scale application.

Extraction of Grape Seed Proanthocyanidins by Membrane Separation Technology:

1. Improve the stability of storage of proanthocyanidin products, and it is not easy to be affected by temperature, light, temperature and other conditions to reduce the color rendering properties;

2. Molecular sieve removal removes macromolecular impurities such as plant fiber, tannin, protein, etc. The product has high clarity and high purity;

3. The encapsulated anthocyanin product can change its solubility characteristics in solution or other medium according to design requirements, and can be applied in more types of solutions or media;

4, concentrated at room temperature, energy consumption is only 30% of the cost of heat concentration, concentrated to remove part of the water and ash, reduce the volume of heat concentration, shorten the heat concentration time, reduce the loss of active ingredients;

5, membrane filtration automation is high, safe and reliable, effectively reducing labor intensity, membrane filtration process in a closed container can achieve good clean production.