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Xi’an PuroNature Biotechnology Co.,Ltd  specializing in botanical extracts, dietary supplements and cosmetic raw materials. We supply high-quality ingredients for the food, beverage, nutraceutical, cosmetic and pharmaceutical industry globally. We are a quality guaranteed ingredients manufacturing partner that undergoes stringent testings to give all customers a dependable ingredients. Our ingredients is an FDA-registered provider of non-GMO, radiation-free and allergen-free ingredients all operations under cGMP, Kosher and Halal certified conditions.

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PuroNature Biotech is committed to the large-scale production and green manufacturing of key functional materials such as functional nutrients and bioactive ingredients. We supplies high-quality ingredients for the food, beverage, nutraceutical, cosmetic and pharmaceutical industry globally. Our products include over 200 ingredients from single species sources and exporting to more than 30 countries.
We are committed to supplying the best ingredients to improve human health.

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Water soluble chitosan derivatives series

水溶性壳聚糖系列产品目录 Products list of water soluble chitosan series 1.壳寡糖                              Chitosan Oligosaccharide 2.壳聚糖盐酸盐                  Chitosan Hydrochloride 3.羧甲基壳聚糖(CMC)       Carboxymethyl Chitosan 4.壳聚糖醋酸盐                   Chitosan Acetate 5.壳聚糖季铵盐                   Chitosan Quaternary AmmoniumSalt 6.壳聚糖乳酸盐                    Chitosan Lactate 7.羟丙基壳聚糖(HPCH)      Hydroxypropyl Chitosan 8.羟乙基壳聚糖                    Hydroxyethyl Chitosan

Green tea extract and black tea extract standards GB/T 31740.1

 Examination Items  Examination Standards Green tea extract Black tea extract Total Tea Polyphenols ≥ 20 15 Catechins  ≥ 10 – Total Theaflavins ≥ Hot-water Soluble – 0.3 Cold-water Soluble – – Caffeine ≤ 15 Moisture Content ≤ 6.0  Ash ≤ Hot-water Soluble 15 20 Cold-water Soluble 20 35