PENGARUH JENIS UBI JALAR, SUHU DAN LAMA PENYIMPANAN TERHADAP KARAKTERISTIK PASTA UBI JALAR (Ipomoea batatas L.)

YOSI, SHARMILA and Priyanto, Gatot and Rosidah, Umi (2017) PENGARUH JENIS UBI JALAR, SUHU DAN LAMA PENYIMPANAN TERHADAP KARAKTERISTIK PASTA UBI JALAR (Ipomoea batatas L.). Undergraduate thesis, Sriwijaya University.

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Abstract

The objective of this research was to analyze the effect of sweet potato variety and storage temperatur on sweet potato paste. This research was conducted at Chemical Laboratory of Agricultural Product and Microbiology Laboratory, Agricultural Technology Department, Faculty of Agriculture, Sriwijaya University, Inderalaya, from March to July 2017. The research used a Completely andomized Factorial Design with three factors and each treatment was repeated three time. The first factor was different variety of sweet potato (purple sweet potato and yellow sweet potato), the second factor was storage temperature (0 ± 2 °C, 10 ± 2 °C and 20 ± 2 °C), the third factor was storage time (0, 1, 2, and 3 days). The parameters on sweet potato paste were physical characteristic (color dan browning index), chemical characteristics (moisture content and sugar reduction) and microbiology characteristics (total microbe). The results showed that the different variety sweet potato had significant effect on moisture content, color (L*, a*, b*) and sugar reduction. The temperature storage had significant effect on moisture content and total microbe. The storage time had significant effect on moisture content, sugar reduction, lightness and total microbe. The results showed that the value lightness ranged from 31.17% until 66.43%, redness ranged from 2.57 until 7.97, yellowness ranged from 5.02 until 31.57, browning index ranged from 0.326 until 0.344 Abs.420nm, moisture content ranged from 62.33% until 68.50%, sugar reduction ranged from 0.595% until 1.119%, and total microbe ranged from 6.50 cfu/ml until 7.12 cfu/ml.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Sweet potato, storage temperature, storage time, pasta.
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ1480-1496 Agricultural machinery. Farm machinery
Divisions:	05-Faculty of Agriculture > 41231-Agricultural Product Technology (S1)
Depositing User:	Mrs Sri Astuti
Date Deposited:	29 Nov 2019 03:41
Last Modified:	29 Nov 2019 03:41
URI:	http://repository.unsri.ac.id/id/eprint/19122

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