Effect of Rosella (Hibiscus Sabdariffa Linn) Extract and Surimi Dumbo catfish (Clarias gariepinus) addition on Starch-Based Edible Film-Glycerol Mechanical Properties has been done. The purpose of this study is to create an active environment-friendly packaging material. Surimi additions are intended to improve the mechanical properties of bioplastics and additions of Rosella extract intended as a bio-indicator of acidity. The method used was Solvent Casting. An amount of surimi and rosella extract varied to obtain the best mechanical properties. The results shows that the addition of surimi and rosella flower extract significantly effect the elongation of Edible films produced up to 27%.

Penelitian tentang pembuatan edible film yang terbuat dari bahan dasar umbi ganyong, lidah buaya, gliserol dan ekstrak jahe dilakukan dengan tujuan untuk mengetahui pengaruh penambahan ekstrak jahe pada edible film pati ganyong-lidah buaya terhadap sifat mekanik, WVTR, dan aplikasinya untuk memperpanjang masa simpan buah tomat.Penelitian ini dilakukan dengan beberapa tahapan, yaitu pembuatan ekstrak jahe, pembuatan edible film pati ganyong-lidah buaya,pembuatan edible film umbi ganyong lidah-buaya dengan penambahan ekstrak jahe, pengujian sifat mekanik edible film, WVTR, dan aplikasi edible film terhadap buah tomat. Berdasarkan penelitian yang telah dilakukan, edible film pati ganyong-lidah buaya memiliki nilai kuat tarik 11,89 MPa, elongasi 12,71 %, dan WVTR 7,45 g/m 2 .jam. Hasil optimal edible film dengan penambahan ekstrak jahe yaitu pada penambahan ekstrak jahe sebanyak 0,75% (b/b) yaitu nilai kuat tarik sebesar 5,17 MPa, elongasi sebesar 9,74% dan nilai WVTR sebesar 8,92 g/m 2 .jam. Penambahan ekstrak jahe ke dalam edible film mampu menjaga kualitas dan masa simpan buah tomat jika ditinjau berdasarkan 50% penyusutan bobot dan 63% kerusakan tekstur. Penyusutan 50% bobot tomat tanpa pelapisan edible film yaitu 45 hari, kemudian tomat dengan pelapisan edible film tanpa ekstrak jahe menjadi 48 hari, dan tomat yang dilapisi edible film dengan penambahan ekstrak jahe dapat yaitu 65 hari. Penurunan tingkat kekerasan tekstur sebesar 63% pada tomat yaitu 7 hari menjadi 7,5 hari dengan pelapisan edible film tanpa ekstrak jahe, sedangkan dengan pelapisan edible film dengan penambahan ekstrak jahe menjadi 12 hari

AbstrakSintesis dan karakterisasi plastik biodegradable dari pati onggok singkong, gliserol, asam asetat dan ekstrak lidah buaya telah dilakukan. Penelitian bertujuan untuk mengetahui pengaruh penambahan ekstrak lidah buaya terhadap sifat mekanik, laju transmisi uap air serta biodegradasi plastik. Terdapat lima tahapan utama dalam penelitian yaitu pembuatan ekstrak lidah buaya, pembuatan pati dari onggok singkong, pembuatan plastik biodegradable, karakterisasi plastik biodegradable dan uji biodegradasi plastik. Variasi ekstrak lidah buaya yang digunakan yaitu 0,01; 0,03; 0,05; 0,07 dan 0,14 gram. Hasil penelitian menunjukkan bahwa penambahan ekstrak lidah buaya cenderung meningkatkan ketebalan sampai 0,01 mm dan elongasi plastik biodegradable sampai 32,07%, namun menurunkan kuat tarik plastik biodegradable sampai 23,95 MPa. Kuat tarik dan elongasi terbesar yaitu 3,90 MPa dan 34,43%. Laju transmisi uap air terbaik sebesar 2,40 g/m 2 jam. Uji biodegradasi plastik biodegradable bahwa penambahan ekstrak lidah buaya tidak berpengaruh nyata terhadap degradasi plastik. Abstract Synthesis and characterizations of Biodegradable Plastic made of Cassava Waste Starch, glycerol, acetic acid andAloe vera extract has done. The aims of this research are to study the influence of addition of aloe vera extract in plastics mechanics properties, water vapor transmission rate and biodegradation. There are five main steps in this research, extraction of aloe vera, cassava starch preparation from cassava waste, preparations, characterization and biodegradability study of biodegradable plastic. The addition variations of aloe vera extract that used in this research are 0.01; 0.03; 0.05; 0.07 and 0.14 grams. Results showed that the addition of aloe Vera tends to increased biodegrable plastic thickness to 0.01 mm and elongation to 32.07%. However, biodegradable plastic tensile strength tends to decreased to 23.95 Mpa. Optimum tensile strength is 3.90 Mpa and elongation is 34.43%. Optimum water vapor transmission rate is 2.40 g/m 2 hours. Biodegradation study of biodegradable plastic showed that addition of aloe vera extract doesn't significantly influence in plastic degradations.

Petroleum-based plastic packaging is very often found in everyday life. It is necessary to develop plastics made from polymers that can be decomposed naturally due to plastic waste problem. One of this polimer is starch. ZnO compounds are used as reinforcing bioplastics because bioplastics derived from starch are still brittle. This study aims to understand the biodegradability of arrowroot starch-based bioplastics with additional ZnO on soil media. This research was carried out in three stages: the production of arrowroot bioplastics with ZnO variations of 0%, 1%, 2%, 3%, 4%, and 5%, bioplastic characterization testing, and bioplastic biodegradation testing. Bioplastic’s characterization includes mechanical test (tensile strength, elongation, and young modulus), FTIR (Fourier Transform Infra-Red), and biodegradation testing of bioplastics carried out on soil pH 5 and pH 6. The result showed with variation 3% of ZnO produce are good mechanical and physical properties. Bioplastics produced tensile strength of 5,9966 MPa, elongation of 5,00045%, and young modulus of 118,1268 MPa. The biodegradation test results in soil pH 5 and pH 6, respectively, showed a decrease in the bioplastic mass up to 70% and 72% for 15 days.

Bioplastics made using the basic ingredients of canna tuber starch with sorbitol plasticizer and the addition of CMC variations have been carried out. This study aims to understand the effect of adding CMC to the mechanical properties and biodegradability of bioplastics in soil media. This research was carried out with 4 stages of work namely, extraction of starch from canna tubers, synthesis of bioplastic manufacturing using the blending method, testing mechanical properties in the form of thickness, tensile strength, elongation, and young modulus. Characteristics of functional groups have been tested using FTIR and bioplastic biodegradability testing has been carried out on soil media for 21 days by looking at weight loss from bioplastics. The variation of adding CMC used is 0; 0.25; 0.5; 0.75; 1; 1.25; 1.5 and 2 grams. The best mechanical properties are produced with thickness of 0.0795 mm, tensile strength of 27.53 MPa, elongation of 3.018% and young modulus of 885.66 MPa. The results of bioplastic biodegradation testing on soil media for 21 days showed that bioplastics made were biodegradable. Reduction of bioplastic mass in soil media by 86,032%.