| Optimization of physico-chemical properties of gelatin extracted from fish skin of rainbow trout (Onchorhynchus mykiss). | |
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MedLine Citation:
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PMID: 20346650 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Physico-chemical properties of gelatin extracted from rainbow trout (Onchorhynchus mykiss) skin were optimized using response surface methodology (RSM). Central rotatable composite design was applied to study the combined effects of NaOH concentration (0.01-0.21 N), acetic acid concentration (0.01-0.21 N) and pre-treatment time (1-3h) on yield, molecular weight distribution, gel strength, viscosity and melting point of gelatin. Regression models were developed to predict the variables. Predict values of multiple response at optimal condition were that yield=9.36%, alpha(1)/alpha(2) chain ratio=1.76, beta chain percent=32.81, gel strength=459 g, viscosity=3.2 mPa s and melting point=20.4 degrees C. The optimal condition was obtained using 0.19 N NaOH and 0.121 N acetic acid for 3h. The results showed that the concentration of H(+) during pre-treatment had significant effect on molecular weight distribution, melting point and gel strength. The concentration of OH(-) had significant effect on viscosity and for extraction yield, pretreatment time was the critical factor. |
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Authors:
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H Shahiri Tabarestani; Y Maghsoudlou; A Motamedzadegan; A R Sadeghi Mahoonak |
Publication Detail:
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Type: Journal Article Date: 2010-03-25 |
Journal Detail:
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Title: Bioresource technology Volume: 101 ISSN: 1873-2976 ISO Abbreviation: Bioresour. Technol. Publication Date: 2010 Aug |
Date Detail:
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Created Date: 2010-04-26 Completed Date: 2010-07-27 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9889523 Medline TA: Bioresour Technol Country: England |
Other Details:
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Languages: eng Pagination: 6207-14 Citation Subset: IM |
Copyright Information:
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(c) 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran. hoda.shahiri@yahoo.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Gelatin / chemistry* Materials Testing Molecular Weight Oncorhynchus mykiss / metabolism* Skin / chemistry* Tensile Strength Transition Temperature Viscosity |
| Chemical | |
Reg. No./Substance:
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9000-70-8/Gelatin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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