Amazing Natural Herbal Extracts

Camptothecin production mainly includes three methods: natural extraction, total chemical synthesis, and semi-chemical synthesis. The CPT prepared by natural extraction is S shape and has high activity. However, because CPT has limited natural plant resources and less CPT content, it is easy to be affected by seasons and producing areas, which limits the wide application of this method. Natural extraction methods include the organic solvent method, alkali method, column chromatography method and resin adsorption method. The purity of the product is low and the color is deep, but the step is simple, the recovery is high and the post-processing is convenient. The extraction time is short and the extraction rate is high. The purity of the products obtained by the column chromatography and resin adsorption is high, but the yield is low and the steps are tedious. 1. Organic solvent extraction and extraction separation The raw material is pulverized with 70% to 90% ethanol as t...

As the hot summer sun comes in the coming months, scientists have reported that an extract of honeysuckle can make a highly efficient natural coating for clothing that can be used to protect people from potentially harmful ultraviolet (UV) damage from the sun. Their report is published in the Journal of ACS & Engineering Chemistry Research, the American Chemical Society. Ren-Cheng Tang and Sha-Sha Sun pointed out that consumers worried about skin cancer and risk of premature skin aging tended to rely on clothing to protect the sun from ultraviolet light. Natural UV protective coatings may have some advantages, including more sustainable production and less environmental impact. They pointed out that Chinese medicine used honeysuckle to treat colds and fever for centuries. A component of honeysuckle is used to preserve food and is an additive for cosmetics that make skin look younger. In their new research, the scientists hope to find out whether honeysuckle extract can promo...

Rosemary, native to the Mediterranean region, is a herbaceous plant of the lip family. The leaves are green linear, and the flowers are pale blue or lavender, and a bunch of shaft-shaped flowers blooms in the early summer and early winter. Since ancient times, it has been regarded as a herb that can enhance memory. Because of its pleasant aroma and magical properties, it was used in religious ceremonies in ancient times. In recent years, rosemary has been selected as the 2000Herboftheyear by the international vanilla Association. The rosemary has many effective components, such as rosemary acid, rosemary acid, sage, and so on. It has the effect of delaying senescence, antisepsis, antioxidation and so on. Therefore, the extract is widely used in the fields of food, health care, medicine, and cosmetics. The extract of rosemary can be divided into two kinds, oil soluble (antioxidant) and water soluble. The effective component of rosemary is racemic acid and the latter is rosemary ac...