To refine shellac for pharmaceutical use, the seedlac is further processed to the de-waxed grade to increase the purity to the specifications set forth by the NF (2). Seedlac purity is approximately 85-90%, consisting of 5-8% shellac wax and 2-5% impurities. The dried resin is called seedlac because of its seed-like resemblance (1). The sticklac is washed with an aqueous media to remove excess laccaic acid, a red dye, and is filtered and dried. The secretion material harvested is called sticklac, and two crops per year are cultivated or harvested. The cocoon-like masses are physically removed from the host trees. The lac insectвЂ™s resinous secretion forms in cocoon-like masses on the trees and branches. Shellac is produced from the lac insectвЂ™s resinous secretion, which occurs when lac insects attach themselves to the bark of particular host trees and feed on the treeвЂ™s sap. Shellac is a resin derived from insects, the Kerria Lacca species (family name Coccidae), also known as lac, which are cultivated in India, Thailand, China, and Vietnam. It also has generally recognized as safe (GRAS) status as designated by FDA. Shellac is an approved food additive in the United States and in Europe and is also listed in the United States Pharmacopeia, European Pharmacopoeia, Japanese Pharmacopoeia, Food Chemicals Codex, and in the European food regulations as E904. It is recognized by the National Formulary (NF) and is classified into categories as orange, de-waxed orange, bleached, and refined de-waxed bleached. It can be used in film coatings to achieve enteric applications, aesthetic and immediate-release properties, taste masking, and seal coating. It is is used in the pharmaceutical and nutraceutical industries to provide various functional properties. Shellac is a natural and versatile polymer used for coating applications. The authors describe the background and applications of fully formulated aqueous shellac for film-coating systems. It can be used in film coatings to achieve enteric applications, aesthetic and immediate- release properties, taste masking, and seal coating. With over 20 years in the industry, we have gained a wide range of knowledge about what equipment is right for your lab - Give us a call or send us an email to chat about your project, we love hearing about scientific innovation and discovery.Shellac is a polymer used in coating applications to provide various functional properties. This means we can be responsive to industry needs and reduce lead times for urgent work. We carry a huge range of stock that is available off the shelf, we deliver worldwide and offer priority urgent delivery on most times. Our business is built around the repurposing and re-tasking of old and unwanted equipment, this helps us to reduce landfill and make the scientific world more sustainable. Many of our pre-used devices are less than 1/3rd of the price of a new one, allowing you to extend your budget. Our clients use us repeatedly for their lab equipment supply and removal. Our ethos is rooted in our family approach-we are small, efficient and always ready to respond to the demands of our customers, some of whom we have been looking after since the beginning.ДЄs a family business we offer a personal service to all our customers. For over twenty-five years we've been trading in used scientific equipment of almost every type and specification, giving us a broad base of knowledge, which helps us assist our customers in sourcing the best value equipment on the market.

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