Food ScienTech Journal
Vol 4, No 1 (2022)

Pasting Properties of Mocaf (Modified Cassava Flour) Using Rapid Visco Analyzer With Variations of pH Solution

Nia Ariani Putri (Department of Food Technology Universitas Sultan Ageng Tirtayasa (Email : nia.ariani@untirta.ac.id))
Achmad Subagio (Department of Agricultural Technology, Faculty of Agricultural Technology, Universitas Jember)
Nurud Diniyah (Department of Agricultural Technology, Faculty of Agricultural Technology, Universitas Jember)



Article Info

Publish Date
01 Jul 2022

Abstract

Starch is a glucose polysaccharide which includes amylose and amylopectin. Natural starch in its utilization has several weaknesses so that modified starch begins to develop, one of which is MOCAF. MOCAF is a modified cassava flour by fermentation using lactic acid bacteria (BAL). The weakness of natural starch is become thicky when the food processing at high temperature and acidic conditions. MOCAF is expected to be able to provide solutions for food processing at high temperatures and acidic conditions. This research was conducted to determine the gelatinization profile of MOCAF during processing at several pH levels. Physical properties of the MOCAF firstly were analyzed including water, starch, amylose, and amylopectin content. After that, the MOCAF gelatinization profile was measured using a Rapid Visco Analyzer (RVA), with observation parameters namely peak viscosity (PV), minimum viscosity (MV), breakdown (BD), final viscosity (FV), setback (SB), pasting temperature (PT), and peak time (Ptime). The results showed that the acidic conditions affected the gelatinization profile of the starch. In the sample which was mixed with citrate buffer solution pH 3 showed the highest peak viscosity (4206.4 cP) and breakdown (3047.6 cP), while the lowest minimum viscosity (1158.6 cP), final viscosity (1604.0 cP), setback (445.2 cP), pasting temperature (74.28°C), and peak time (4.31 minutes). Thus, the low-pH processed MOCAF has the lowest viscosity stability and retrogradability.

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Journal Info

Abbrev

fsj

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Immunology & microbiology

Description

FSJ is an open access, peer-reviewed, multidisciplinary journal dedicated to the publication of novel research in all aspects of Food Technology, with particular attention paid to the exploration and development of natural products derived from tropical—and especially Indonesian—biodiversity. ...