title: PENGARUH 1-METHYLCYCLOPROPENE (1-MCP), KITOSAN, DAN SUHU SIMPAN TERHADAP MASA SIMPAN DAN MUTU JAMBU BIJI (Psidium guajava L.) ‘CRYSTAL’ creator: DWI APRIANTI, 1114121068 subject: Budidaya tanaman description: Jambu biji termasuk buah klimaterik, yaitu buah yang memiliki laju respirasi yang meningkat dengan tajam selama periode pematangan dan pada awal senesen. Proses metabolisme yang masih berlangsung seperti respirasi, transpirasi, dan produksi etilen dapat mempercepat masa simpan dan menurunkan mutu buah jambu biji ‘Crystal’. Terdapat beberapa cara untuk menanggulangi proses respirasi, transpirasi dan produksi etilen, yaitu dengan aplikasi 1-methylcyclopropene, kitosan, dan suhu dingin. Penelitian ini bertujuan untuk mengetahui pengaruh (1) aplikasi 1-MCP, (2) aplikasi pelapisan kitosan, (3) aplikasi suhu rendah, (4) kombinasi 1-MCP dan kitosan, (5) kombinasi 1-MCP dan suhu dingin, (6) kombinasi kitosan dan suhu dingin, (7) dan kombinasi antara 1-MCP, pelapisan kitosan, dan suhu rendah terhadap masa simpan dan mutu buah jambu biji ‘Crystal’. Penelitian ini dilakukan di Laboratorium Pascapanen Hortikultura, Jurusan Agroteknologi, Fakultas Pertanian, Universitas Lampung. Penelitian ini Dwi Aprianti iii dilaksanakan pada bulan Agustus- September 2014. Rancangan percobaan yang digunakan di dalam penelitan ini adalah Rancangan Teracak Sempurna (RTS), dengan perlakuan yang disusun secara faktorial 2 x 2 x 2. Faktor pertama adalah 1-MCP, yaitu kontrol (tanpa 1-MCP; M0) dan dengan 1-MCP (M1). Faktor kedua adalah kitosan, yaitu kontrol (tanpa kitosan 2,5%; K0) dan dengan kitosan 2,5% (K1), sedangkan faktor ke tiga adalah suhu, yaitu kontrol (suhu ruang 28 oC, T0) dan dengan suhu dingin 20 oC (T1). Hasil penelitian menunjukkan bahwa (1) aplikasi 1-MCP tidak nyata meningkatkan masa simpan, tetapi mampu mempertahankan mutu buah jambu biji ‘Crystal’, (2) aplikasi kitosan tidak nyata meningkatkan masa simpan, tetapi mampu mempertahankan mutu buah jambu biji ‘Crystal’, (3) aplikasi suhu dingin mempercepat masa simpan, dan mampu mempertahankan mutu buah jambu biji ‘Crystal’, (4) tidak terdapat interaksi antara 1-MCP, kitosan, dan suhu dingin dalam meningkatkan masa simpan dan mempertahankan mutu buah jambu biji ‘Crystal’. Kata kunci: 1-MCP, jambu biji ‘Crystal’, kitosan, masa simpan, mutu, suhu ABSTRACT EFFECT OF 1-METHYLCYCLOPROPENE (1-MCP), CHITOSAN, AND TEMPERATURE ON THE SHELF LIFE AND QUALITY GUAVA( PsidiumguajavaL.) 'CRYSTAL' Guava is a climacteric fruit, that is a fruit that has a respiration burst during ripening period and at the start of senesen. Metabolic processes such as respiration, transpiration and ethylene production may accelerate the shelf life and decrease the quality of guava 'Crystal'. There are several ways to cope with the process of respiration, transpiration and ethylene production, namely the application of 1-methylcyclopropene, chitosan, and cold temperatures. This study was aimed at determining the effects of (1) application of 1-MCP, (2) coating applications of chitosan, (3) the application of low temperature, (4), the combination of 1-MCP and chitosan, (5) a combination of 1-MCP and cold temperatures, (6) combination chitosan and cold temperatures, (7) and the combination among 1-MCP, chitosan coating, and treatment of low temperature on the shelf life and quality of guava 'Crystal'. Dwi Aprianti v This research was conducted at the Laboratory of Postharvest Horticulture, Department of Agrotechnology, Faculty of Agriculture, University of Lampung. The research was conducted in August-September 2014. The experimental design used in this research was Completely Randomize Design (RTS), with treatments arranged in a factorial 2 x 2 x 2. The first factor was 1-MCP, control (without-MCP; M0) and with 1-MCP (M1). The second factor was chitosan, control (without chitosan 2.5%; K0) and with 2.5% chitosan (K1), while the third factor was the temperature, room temperature 28o C (T0) and with cold temperatures 20o C (T1). The results showed that (1) application of 1-MCP did not markedly increase the shelf life, but was able to maintain the quality of guava 'Crystal', (2) the application of chitosan did not markedly increase the shelf life, but was able to maintain the quality of guava 'Crystal', (3) application of cold temperatures accelerated the shelf life, and was able to maintain the quality of guava 'Crystal', (4) there was no interaction among 1-MCP, chitosan, and cold temperatures in increasing the shelf life and maintaining the quality of guava 'Crystal'. Keywords: 1-MCP, chitosan, guava 'Crystal', quality, shelf life, temperature publisher: Fakultas Pertanian date: 2015-10-26 type: Skripsi type: NonPeerReviewed format: text identifier: http://digilib.unila.ac.id/16046/1/ABSTRACT.pdf format: text identifier: http://digilib.unila.ac.id/16046/2/ABSTRAK.pdf format: text identifier: http://digilib.unila.ac.id/16046/3/COVER%20DALAM.pdf format: text identifier: http://digilib.unila.ac.id/16046/4/COVER%20LUAR.pdf format: text identifier: http://digilib.unila.ac.id/16046/5/DAFTAR%20GAMBAR.pdf format: text identifier: http://digilib.unila.ac.id/16046/6/DAFTAR%20ISI.pdf format: text identifier: http://digilib.unila.ac.id/16046/7/DAFTAR%20TABEL.pdf format: text identifier: http://digilib.unila.ac.id/16046/10/LEMBAR%20PERSETUJUAN.pdf format: text identifier: http://digilib.unila.ac.id/16046/8/LEMBAR%20PENGESAHAN.pdf format: text identifier: http://digilib.unila.ac.id/16046/9/LEMBAR%20PERNYATAAN.pdf format: text identifier: http://digilib.unila.ac.id/16046/11/MOTO.pdf format: text identifier: http://digilib.unila.ac.id/16046/12/PERSEMBAHAN.pdf format: text identifier: http://digilib.unila.ac.id/16046/13/RIWAYAT%20HIDUP.pdf format: text identifier: http://digilib.unila.ac.id/16046/14/SANWACANA.pdf format: text identifier: http://digilib.unila.ac.id/16046/15/BAB%20I.pdf format: text identifier: http://digilib.unila.ac.id/16046/16/BAB%20II.pdf format: text identifier: http://digilib.unila.ac.id/16046/17/BAB%20III.pdf format: text identifier: http://digilib.unila.ac.id/16046/18/BAB%20IV.pdf format: text identifier: http://digilib.unila.ac.id/16046/19/BAB%20V.pdf format: text identifier: http://digilib.unila.ac.id/16046/20/DAFTAR%20PUSTAKA.pdf identifier: DWI APRIANTI, 1114121068 (2015) PENGARUH 1-METHYLCYCLOPROPENE (1-MCP), KITOSAN, DAN SUHU SIMPAN TERHADAP MASA SIMPAN DAN MUTU JAMBU BIJI (Psidium guajava L.) ‘CRYSTAL’. Fakultas Pertanian, Universitas Lampung. relation: http://digilib.unila.ac.id/16046/