KARAKTERISTIK SIFAT FISIK DAN KIMIA UBI KAYU (MANIHOT ESCULENTA) BERDASARKAN LOKASI PENANAMAN DAN UMUR PANEN BERBEDA
ABSTRACT: Cassava (Manihot
esculenta) is the third primary food in Indonesia after rice and corn. Cassava
doesn’t have distinctive harvest period, therefore the harvesting period can be
varied and resulting differences physical and chemical properties. Production rate
and physical and chemical properties will vary due to soil fertility of cassava
plantation. The purpose of this study is to analysis physical and chemical
properties at Gunung Agung village Sekampung Udik district and Sinar Baru
village Marga Tiga district, at Lampung Timur regency with different harvesting
periods. The method used in this study was a descriptive method with two
factors : harvesting age and plant location. The results show that Kasetsart
variety with ten month of harvesting age at location A (Gunung Agung village
Sekampung Udik) had better physical and chemical properties, and these can be
seen from the fresh cassava water content (60,67%), cassava density (1,15
g/mL), starch content (35,93%), starch yield (18,94%), starch moisture (8,17%),
amilose content (18,03%) and amylopectin content (81,97%) and enzymaticly
conversion of starch to glucose (64,92%). Different plan locations and
harvesting periods resulted in different physical and chemical properties.
These indicated that Kasetsart variety grown at location A is more suitable to
be converted to bioethanol compared to those of at location B.
Keywords: Bioethanol, harvesting period, Kasetsart
cassava, physical and chemical properties
Penulis: Susilawati, Siti
Nurdjanah, Sefanadia Putri
Kode Jurnal: jppertaniandd080029
