Abstract
Postharvest deterioration is a major problem which is an obstacle for cassava handling both for conventional cassava variety and mutant variety. There are two types of postharvest deterioration on cassava, namely postharvest primary deterioration (PPD) or primer deterioration of physiological deterioration, and microbiological deterioration. Damage can be minimized by carrying out storage in optimal conditions. This study aimed to determine the level of postharvest deterioration on cassava variety R and U during 35 days of storage. The storage treatment was storage consist of 1) wooden boxes and moist sawdust storage (P1) and 2)control storage (P2). The results indicated that RP2 and UP2 produced physiological deterioration by 25% on the 7th day of storage and reached 100% on the 35th day of storage. Meanwhile, the percentage of microbiological deterioration reached more than 20% on the 14th day of storage. On the other hand, RP1 and RP2 indicated good results. Both varieties experienced only less than 25% physiological deterioration and did not experience microbiological deterioration during storage.
Highlights
Kerusakan pascapanen merupakan permasalahan utama yang menjadi hambatan dalam penanganan ubi kayu baik ubi kayu varietas lokal maupun ubi kayu hasil induksi mutasi
Postharvest deterioration is a major problem which is an obstacle for cassava handling both for conventional cassava variety and mutant variety
The results indicated that RP2 and UP2 produced physiological deterioration by 25% on the 7th day of storage and reached 100% on the 35th day of storage
Summary
Heldiyanti et al.: Kerusakan Pascapanen pada Ubi Kayu ini adalah ubi kayu hasil pemuliaan yang berasal dari varietas Ratim (R) dan varietas UJ-5 (U), masingmasing berumur 10 bulan dengan berat per umbi 400 gr dan panjang 20-27cm. Sementara itu alat yang digunakan adalah serbuk kayu, kotak kayu, wood moisture meter dan hygrometer. Terdapat dua kondisi penyimpanan untuk varietas R dan Varietas U yaitu: 1) Penyimpanan di dalam kotak kayu yang dilapisi serbuk kayu lembab (P1). Jumlah kotak kayu yang digunakan adalah 6 kotak kayu (RP1 , RP1 , RP1 , UP1 , UP1 , dan UP13) dengan ukuran berukuran. Jumlah serbuk kayu yang digunakan adalah 2 kg per kotak. Serbuk kayu dikondisikan dalam kondisi lembab agar memenuhi kondisi penyimpanan optimal untuk ubi kayu. Kadar air ini dipertahankan dengan cara menambahkan air setiap hari ke serbuk kayu. Penyimpanan di dalam kotak kayu dilakukan dengan melapisi bagian dasar kotak dengan serbuk gergaji lembab dengan ketebalan sekitar 1 cm, kemudian ubi kayu disusun diatas lapisan tersebut dan ditutup kembali dengan serbuk gergaji lembab dengan ketebalan lapisan sekitar 5 cm. Analisis Data Data hasil pengamatan diolah dengan statistika deskriptif menggunakan software MS.Excel
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