Lab Skill 9,10: Bioplastics And Insectarium

LAB SKILL 9,10 BIOPLASTICS AND INSECTARIUM I.Basic theory Specimens from various animals are often needed for research purposes and as teaching aids in the world of education. In animal collection activities you need to pay attention to several things, including not disturbing the existence of rare animals or destroying the remains in caves that have been abandoned by ancient humans. The animals collected are animals needed for preservation for the purpose of testing at a later date. All specimens collected must be labeled containing information about the species name, location of discovery, date of collection and other necessary data. The label must be written when the specimen is preserved, so that there is no misinformation regarding the preserved specimen. A. Insectarium The term Insectarium is better known for preserving animal sinsectais insect animal material that has been preserved and stored. Insectarium 1. Bioplastics Bioplastics are the preservation of animal or plant specimens in blocks of resin to be used as media/tools, whether for educational or commercial purposes or certain purposes. This animal preservation technique using bioplastics has several advantages, including: Strong and durable, cheap, attractive and practical to store. But this technique also has a weakness, namely that the real object cannot be touched/touched (because observation only relies on sight). Preservation using polyester resin can be done on fresh material, dry preservation, and/or wet preservation. This preservation can be used to observe aspects of morphology, anatomy, tissue, comparison or life cycle II. Tools and materials Tool : 1. Catching net 2. insect 3. Plastic bags 4. Cardboard 5. Straight pin 6. Label 7. Print Material : 1. Insect animals 2. Chloroform 3. Formalin 4. Alcohol 70% 5. Camphor 6. Resin III. Ways of working 1.Catch insects using a bug net. Watch out for dangerous insects. 2.Kill the insects by putting them in a plastic bag filled with cotton soaked in chloroform. 3.Dead insects are put in a separate bag or jar. Butterflies and dragonflies are placed in envelopes carefully so that their wings do not break. 4.Inject the back of the insect with 5% formalin. Brush (with a brush) the outside of the body with 5% formalin. 5.Before it dries, pierce the insect's chest with a pin. 6.Drying is sufficient indoors at room temperature. Stick the pin in the plastic or foam rubber. 7.For grasshoppers, extend one wing outward. For butterflies, their wings are stretched on a stretching board or thick paper so that they look beautiful. Likewise dragonflies and other animals. 8.Once dry, the insects are placed in an insectarium box (made of cardboard or wood). It also includes camphor (camphor). 9.Put a label (on the outside of the box) containing any special notes. put a label on the outside of the box containing: name of collector, collection number, date of creation, location of discovery, name of object (scientific, regional), name of tribe/family, and other special notes. 10.To make bioplastic preparations, prepare liquid resin and catalyst, as well as a plastic mold. 11.Add half the volume of liquid resin into the mold, then put the killed animal into the mold containing the resin. Pour the resin catalyst liquid again to cover the animal's body and until it fills the mold. Let it dry and harden, then the finished bioplastic is smoothed with sandpaper and ready to be collected