Document Detail


Compositional, functional and storage properties of flours from raw and heat processed African breadfruit (Treculia africana Decne) seeds.
MedLine Citation:
PMID:  11086878     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
African breadfruit (Treculia africana Decne) seeds were either boiled or roasted and then milled into flour. Chemical composition, functional properties and storage characteristics of raw and treated flours and the effect of partial proteolysis on selected functional properties of the raw flour were determined. Raw flour contained 20.1% crude protein, 2.5% total ash and 13.7% fat. Heat processing significantly (p < 0.05) improved in vitro protein digestibility, and water and fat absorption capacities but decreased bulk density, nitrogen solubility, emulsion and foaming properties, trypsin inhibitor, and phytic acid and polyphenol contents of the samples. Boiling proved more effective than roasting for improving protein digestibility, emulsion capacity and foam stability and reducing antinutritional factor levels. Partial proteolysis increased nitrogen solubility, bulk density and water and fat absorption capacities but decreased foam capacity at hydrolysis levels greater than 35%. Fatty acid and peroxide values of the samples increased during storage. Compared to raw samples, heat processed samples had significantly (p < 0.05) lower and more acceptable peroxide values and free fatty acid contents and higher and more stable water (3.0 g/g sample) and fat (2.4 g/g sample) absorption capacities.
Authors:
S Y Giami; M N Adindu; M O Akusu; J N Emelike
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Plant foods for human nutrition (Dordrecht, Netherlands)     Volume:  55     ISSN:  0921-9668     ISO Abbreviation:  Plant Foods Hum Nutr     Publication Date:  2000  
Date Detail:
Created Date:  2001-02-14     Completed Date:  2001-03-08     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8803554     Medline TA:  Plant Foods Hum Nutr     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  357-68     Citation Subset:  IM    
Affiliation:
Department of Food Science and Technology, Rivers State University of Science and Technology, Port Harcourt, Nigeria.
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MeSH Terms
Descriptor/Qualifier:
Absorption
Chemistry, Physical
Cookery / methods
Digestion
Flour / analysis
Food Handling*
Food Preservation
Fruit / chemistry*
Hot Temperature
Humans
Nigeria
Physicochemical Phenomena
Plant Proteins / analysis*
Rosales / chemistry*
Seeds / chemistry*
Trees
Chemical
Reg. No./Substance:
0/Plant Proteins

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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