Tejasari

Jurusan Teknologi Hasil Pertanian, Universitas Jember, Jember, Indonesia

DOI: 

ABSTRACT 

Suweg (Amorphophalus campanulatus Deene) starch could be one of local alternative foodstuff for food diversification. Knowing its characteristic is important especially for determination its storage method, its processing technology, and suitability kinds of processed food. This study was conducted to determine its physical and physicochemical characteristics, and its nutritional value. The experiment showed that one-kilogram of fresh suweg tuber root yielded 73.5 gram of starch. Suweg starch has white color expressed by 97.3 whiteness degree. Its granule is polygonale irregular form, and has about 20-30 µm size. The starch has space density by 0.69, and its pouring makes at an angle of 39.60o. Its gel consistency is soft (96.44mm). Other physicochemical characteristics of the starch are low paste viscosity, water absorption, and water soluble value by  0.0056 pa.det, 2.15, 0.05 percent, respectively. These characteristics are suitable for food that do not need high blow up in nature, such as biscuit and noodles. Suweg starch is nutritious foodstuff, especially its high carbohydrate, sufficient fat, and mineral contains, respectively by 87.2, 5.5, 1.6 g per 100 g in starch on dry basis (d.b). Suweg starch still have protein (0.6 percent) and crude fibre (0.04 percent). 

Keywords: suweg starch, physics and physicochemical characteristics, nutritional value

REFERENCES

Antarlina SS (1993).  Kandungan Gizi, Mutu Tepung Ubi Jalar serta Produk Olahannya.  Laporan Bulanan Balai Penelitian Tanaman Pangan,  Malang.

Antarlina SS dan Utomo JS (1999).  Proses pembuatan dan penggunaan tepung Ubijalar untuk produk pangan.   Balitkabi.  Edisi khusus No. 15.

Hall DW (1970). Handly and Storage of Foods Grains in Tropical and Sub Tropical Areas. Food and Agricultural Organisation Of The United, Roma.

Haryadi (1995). Sifat-sifat Fungsional Pati Dalam Bahan Pangan. Fakultas Teknologi Pertanian, Universitas Gadjah Mada, Yogyakarta.

Kay DE (1973). Root Crops, Tropical Development and Research Institute, London.

Lamoureux CH  dan Rifai MA (1981). Root & Tuber Crops.IBPGR, Rome, 

Lingga P (1995).  Bertanam Ubi-ubian.  Penebar Swadaya.  Jakarta 

Muljohardjo M (1987). Teknologi Pengolahan Pati. PAU Pangan dan Gizi, Universitas Gadjah Mada, Yogyakarta.

Makfoel D (1982). Deskriptif Pengolahan Hasil Nabati. Agritech Vol.II, UGM, Yogyakarta.

Muchtadi T dan Sugiyono (1992). Ilmu Pengetahuan Bahan Pangan. PAU Pangan dan Gizi – IPB, Bogor.

Sudarmadji S, Haryono B dan Suhardi (1989). Analisa Bahan Makanan dan Pertanian. Penerbit Liberty, Yogyakarta.

Suismono (2001). Teknologi Pembuatan Tepung dan Pati Ubi-ubian untuk Menunjang Ketahanan Pangan.  Majalah Pangan  X: 37-49.

Sunanto H (1993). Aren Budidaya dan Multigunanya. Kanisius, Yogyakarta.

Syarif dan Anis (1986). Studi Reka Pangan Beras Instant. PAU-Pangan dan Gizi UGM, Yogyakarta.

Swinkels dan Veendams JJM (1985).  Composition And Properties of Comercial Native Starches.  Starch 37 : 1-5.

Widowati SMG, Waha dan Santosa BAS (1997). Ekstraksi dan Karakterisasi Sifat Fisikokimia dan Fungsional Pati  Beberapa Varietas Talas (Colocasia esculenta L.Schoot.)  Makalah pada Prosiding Seminar Teknologi Pangan PATPI. 

Winarno FG dan Aman M (1992).  Kimia Pangan dan Gizi.  PT Gramedia Pustaka Utama.  Jakarta.