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Specifications:
It usually presents as a light - yellow to yellowish - brown powder. The fine powder form is beneficial for easy handling, storage, and further processing in various applications.
Identification mainly relies on advanced analytical techniques. High - performance liquid chromatography (HPLC) is used to separate and quantify the polypeptide components in the powder, accurately determining the content and types of bitter gourd polypeptides. Additionally, mass spectrometry (MS) can provide detailed information about the molecular weight and structure of the polypeptides, helping to confirm their identity.
Polypeptide Content: The content of effective polypeptides is a crucial quality indicator. High - quality products typically have a relatively high polypeptide content, often required to be over a certain percentage (e.g., 80% or more depending on product standards), which directly affects its biological activity and efficacy.
Loss on Drying: The loss on drying value is strictly controlled, usually within a low range such as less than 5%. This ensures the stability of the powder and prevents issues like moisture - induced degradation or clumping during storage.
Heavy Metals and Pesticide Residues: The levels of heavy metals (such as lead, mercury, cadmium) and pesticide residues are closely monitored. Heavy - metal content is usually required to be extremely low, often less than a few parts per million (ppm), and strict limits are also set for pesticide residues to guarantee safety for consumption or use in health - related products.
Microbiological Quality: Microbiological parameters, including total aerobic microbial count, yeast and mold count, and the absence of pathogenic microorganisms, are carefully regulated. This is essential to ensure the product's safety and shelf - life.
In the health - care and food industries, bitter gourd polypeptide drying powder is well - known for its potential hypoglycemic effects. Bitter gourd polypeptides are believed to have functions similar to insulin, which can help regulate blood sugar levels. Therefore, it is often used as a raw material in health - care products for people with blood - sugar management needs. Additionally, due to its rich bio - active components, it may also have antioxidant and immune - regulating effects, making it a promising ingredient in functional foods and dietary supplements.