Biodegradable polymer which, edible films have gained more attention due to their environmentally-friendly characteristics, vast variety and availability, non-toxicity, and low cost. Biodegradable polymers have a long history, and since many are natural products, the precise timeline of their discovery and use cannot be accurately traced. One of the first medicinal uses of a biodegradable polymer was the catgut suture, which dates back to at least 100 AD. The first catgut sutures were made from the intestines of sheep, but modern catgut sutures are made from purified collagen extracted from the small intestines of cattle, sheep, or goats. The concept of synthetic
Kombu (instrument) Kombu (instrument) The Kombu (Tamil:கொம்பு) or Kompu also known as the Kombu Pattu is a wind instrument (a kind of Natural Horn) in Tamil nadu and Kerala. Usually played along with Panchavadyam, Pandi Melam, Panchari melam etc. This musical instrument is usually seen in south India. The instrument is like a long horn ("Kombu" in Tamil language). In ancient days "kombu" played during war along with Murasu. Listed one of the Musical instruments used by ancient Tamil people out in Tirumurai dated 6th to 11th century, Sangam Period. வெல் படைத் தறுகண் வெஞ்சொல் வேட்டுவர் கூட்டம் தோறும் சில்லரித் துடியும் கொம்பும் சிறு கண்