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Paper Information

Journal:   IRANIAN JOURNAL OF FOOD SCIENCE AND TECHNOLOGY   SUMMER 2015 , Volume 12 , Number 47; Page(s) 171 To 180.
 
Paper: 

STUDY THE EFFECT OF DIFFERENT TREATMENTS IN CONTROL OF BROWNING IN ESTAHBAN INTERMEDIATE MOISTURE FIG (CV. SABZ)

 
 
Author(s):  FARAJI N., MAFTOONAZAD N.*, FARAHNAKI A., BADII F., HOSEINI E.
 
* DEPT. OF AGRICULTURAL ENGINEERING RESEARCH, AGRICULTURE AND NATURAL RESOURCES CENTER, FARS, IRAN
 
Abstract: 

Iran is one of the most important fig producer countries around the world. Intermediate moisture fig is a processed product. One problem about intermediate moisture fig is that the color will be changed and transmute to brown during storage after processing. The purpose of this research was to study soaking temperature and time effects and to evaluate the effects of calcium chloride, cysteine, sodium metabisulphite and citric acid in various concentrations on prevention of semi-moisture fig browning at room temperature.
Chemical compounds (protein, total sugar, fat, fiber and moisture) of fig samples were determined. In order to prepare product five different periods of time (3, 6, 9, 12, 15 min) and five different degrees of temperature (20, 40, 60, 80, 100°C) based on central composite rotational design were used. Samples were kept in room temperature for 2 weeks to evaluate the effects of soaking parameters on color and texture of product. After that moisture, color and texture of samples were determined. First different solution of calcium chloride (0.6, 1, 1.5, 2% w/w), citric acid (0.5, 1, 2, 3%w/w), cysteine (0.05, 0.07, 0.2, 0.5%w/w) and sodium metabisulphite (500, 800, 1000 and 1200 ppm) were prepared. Dried figs were dipped in prepared solutions and water was used to evaluate control samples to optimize the time and temperature, then color of the samples were measured in specific period of time during four months.
Results showed that temperature of 60oC and 3min interval provided 20% moisture in the product which assessed as the best moisture content for preserving color and texture. The most desirable L value was obtained using citric acid (1, 2, 3%w/w) and Calcium chloride (1.5%w/w). However sodium metabisulphite and cysteine in concentration of 0.07%, 0.05%, 0.2% showed significant difference with control, the results were not satisfactory.
Results showed that using suitable temperature in rehydration of fig to inactivate poly phenol oxidase and chemical treatments to postpone and reduce the browning reaction rate were effective.

 
Keyword(s): FIG, BROWNING REACTION, CALCIUM CHLORIDE, CITRIC ACID, CYSTEINE, SODIUM METABISULPHITE
 
 
References: 
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Click to Cite.
APA: Copy

FARAJI, N., & MAFTOONAZAD, N., & FARAHNAKI, A., & BADII, F., & HOSEINI, E. (2015). STUDY THE EFFECT OF DIFFERENT TREATMENTS IN CONTROL OF BROWNING IN ESTAHBAN INTERMEDIATE MOISTURE FIG (CV. SABZ). IRANIAN JOURNAL OF FOOD SCIENCE AND TECHNOLOGY, 12(47), 171-180. https://www.sid.ir/en/journal/ViewPaper.aspx?id=407780



Vancouver: Copy

FARAJI N., MAFTOONAZAD N., FARAHNAKI A., BADII F., HOSEINI E.. STUDY THE EFFECT OF DIFFERENT TREATMENTS IN CONTROL OF BROWNING IN ESTAHBAN INTERMEDIATE MOISTURE FIG (CV. SABZ). IRANIAN JOURNAL OF FOOD SCIENCE AND TECHNOLOGY. 2015 [cited 2021May10];12(47):171-180. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=407780



IEEE: Copy

FARAJI, N., MAFTOONAZAD, N., FARAHNAKI, A., BADII, F., HOSEINI, E., 2015. STUDY THE EFFECT OF DIFFERENT TREATMENTS IN CONTROL OF BROWNING IN ESTAHBAN INTERMEDIATE MOISTURE FIG (CV. SABZ). IRANIAN JOURNAL OF FOOD SCIENCE AND TECHNOLOGY, [online] 12(47), pp.171-180. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=407780.



 
 
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