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Paper Information

Journal:   IRANIAN JOURNAL OF FOOD SCIENCE AND TECHNOLOGY   SPRING 2015 , Volume 12 , Number 46; Page(s) 145 To 154.
 
Paper: 

IMPACT OF HYDROXYPROPYLMETHYLCELLULOSE AND MODIFIED ATMOSPHERE PACKAGING ON SANGAK BREAD SHELF LIFE

 
 
Author(s):  CHERAGHI DEHDEZI S.*, HAMDAMI N.
 
* DEPARTMENT OF FOOD SCIENCE AND TECHNOLOGY, SHOUSHTAR BRANCH, ISLAMIC AZAD UNIVERSITY, SHOUSHTAR, IRAN
 
Abstract: 

Microbial spoilage and staling are the most important reasons for the amount of bread waste. In order to extend the bread shelf life, either different bread improvers such as hydrocolloids or appropriate specific packaging like modified atmosphere packaging (MAP) can apply. In this study, the effects of hydrocolloid on quality properties of Sangak bread were investigated. The gum Hydroxypropylmethylcellulose (HPMC) was added to the formulation at 0.5 and 1% (w/w of flour) concentration. As a control, no gum added formulations were used. Wheat bread samples were packaged in polyamid/ polyethylene bags with different gas combinations. Two gas concentrations tested included: air, and 100% CO2. All packaged bread samples were stored at 25°C for 15 days. Quality and microbial features of bread such as moisture, texture, and mold and yeast count were assessed at intervals of three days during storage.
Statistical analysis of the results of bread quality characteristics during storage revealed that, the gas in headspace of package did not significantly affect the product moisture content, while shear stress, maximum force and the microbial load of the samples were thoroughly impressed by it. So that with carbon dioxide, the growth of mold and yeasts was more limited. Also was observed all product quality characteristics change significantly during storage time. So that the reduced moisture were observed up to 12th day. Conversely hardness, shear stress and microbial load increased during the storage period. The breads containing 1% HPMC showed the lowest maximum force and shear stress. Control showed the highest moisture and mold and yeast count all over the storage period.

 
Keyword(s): SANGAK BREAD, MODIFIED ATMOSPHERE PACKAGING, HYDROXYPROPYLMETHYLCELLULOSE, SHEAR STRESS
 
 
References: 
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Click to Cite.
APA: Copy

CHERAGHI DEHDEZI, S., & HAMDAMI, N. (2015). IMPACT OF HYDROXYPROPYLMETHYLCELLULOSE AND MODIFIED ATMOSPHERE PACKAGING ON SANGAK BREAD SHELF LIFE. IRANIAN JOURNAL OF FOOD SCIENCE AND TECHNOLOGY, 12(46), 145-154. https://www.sid.ir/en/journal/ViewPaper.aspx?id=407857



Vancouver: Copy

CHERAGHI DEHDEZI S., HAMDAMI N.. IMPACT OF HYDROXYPROPYLMETHYLCELLULOSE AND MODIFIED ATMOSPHERE PACKAGING ON SANGAK BREAD SHELF LIFE. IRANIAN JOURNAL OF FOOD SCIENCE AND TECHNOLOGY. 2015 [cited 2021May07];12(46):145-154. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=407857



IEEE: Copy

CHERAGHI DEHDEZI, S., HAMDAMI, N., 2015. IMPACT OF HYDROXYPROPYLMETHYLCELLULOSE AND MODIFIED ATMOSPHERE PACKAGING ON SANGAK BREAD SHELF LIFE. IRANIAN JOURNAL OF FOOD SCIENCE AND TECHNOLOGY, [online] 12(46), pp.145-154. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=407857.



 
 
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