Journal article
Nutritional Quality, Functional Properties, Bioactivity, and Microstructure of Defatted Pistachio Kernel Flour
Journal of the American Oil Chemists' Society, Vol.93(5), pp.689-699
05/2016
Handle:
https://hdl.handle.net/2376/104048
Abstract
Defatted pistachio kernel flour (DPKF) is a byproduct of specialty oil industries and a promising product to be further used as a food ingredient. The purpose of this study was to evaluate nutritional value, functional properties, bioactivity, and microstructure of DPKF prepared by cold pressing (partially defatted, ~22 % residue fat d.b.) and pre‐press‐solvent extraction (totally defatted, <1 % residue fat d.b.) methods both using raw and roasted kernels. DPKF was rich in protein (34.36–46.47/100 g flour, d.b.) and carbohydrate (36.61–48.71/100 g flour, d.b.). Also, DPKF showed low Na contents with high concentrations of K, P, Ca, Mg, Zn, and Se. Excluding the sulfur amino acid, all essential amino acids were significantly higher than the reference values recommended by Food and Agriculture Organization/WHO. Totally defatted flours presented better functional properties than the partially defatted ones with exceptions of foaming stability. DPKF also exhibited appreciably higher total phenolic (552–792 mg gallic acid equivalent/100 g flour, d.b.) and flavonoid (124–280 mg RE/100 g flour, d.b.) contents as well as antioxidant capacities. Therefore, DPKF may have potential applications as functional ingredients and supplements in foods.
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Details
- Title
- Nutritional Quality, Functional Properties, Bioactivity, and Microstructure of Defatted Pistachio Kernel Flour
- Creators
- Bo Ling - Northwest A&F UniversityBo Zhang - Northwest A&F UniversityRui Li - Northwest A&F UniversityShaojin Wang - Washington State University
- Publication Details
- Journal of the American Oil Chemists' Society, Vol.93(5), pp.689-699
- Academic Unit
- Biological Systems Engineering, Department of
- Publisher
- Springer Berlin Heidelberg; Berlin/Heidelberg
- Number of pages
- 11
- Grant note
- Ph.D. Programs Foundation of Ministry of Education of China (20120204110022) General Program of National Natural Science Foundation of China (31371853) Program of Introducing International Advanced Agricultural Science and Technologies (948 Program) of Ministry of Agriculture of China (2014‐Z21)
- Identifiers
- 99900546528601842
- Language
- English
- Resource Type
- Journal article