Analisa Kandungan Pati 50 Aksesi Plasma Nutfah Ubi Kayu (Manihot esculenta Crantz.) Koleksi Bank Gen Balitbangtan
No Thumbnail Available
Date
2021-09-15
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
KOMISI NASIONAL SUMBER DAYA GENETIK
Abstract
Indonesia is a country that has a high genetic diversity of cassava (Manihot esculenta Crantz.) A total of 500 accessions of cassava genetic resources were conserved at Gene Bank-IAARD-ICABIOGAD. Cassava is the main starch producing plant and starch is widely used in food and other industries. The starch content produced by one accession of cassava can be different from other accessions due to differences in genetic factors, climatic factors, harvesting time or ecophysiological factors. In this study, starch analysis was carried out on tubers from 50 accessions of cassava from the Gene Bank field collection in 2016. Tubers were harvested after 8 months planting, which is known as the optimal time for starch development in cassava tubers. The starch from cassava consists of amylose and amylopectin. The ratio of amylose and amylopectin determines the functional properties of cassava starch. The analysis was carried out at the Laboratory of the Central Agro Industry (BBIA) using the hydrolysis method. The starch content of the 50 accessions observed was ranged from 11.9% to 39%. The highest starch content (39%) was obtained from Ubi Roti variety. This variety has a good taste and known as sweet (not bitter) variety thus prefered on various food processing. While bitter cassava with high starch content is not recommended for direct food processing, but suggested to utilize for example as cassava flour or starch-based non-food products, such as glue, artificial wood, plywood and plastic boards.
Description
Keywords
Cassava, genetic resources, starch