Prachi, Thatte and Jyothi Lakshmi, A. (2012) Nutritional potential, bioaccessibility of minerals and antioxidant properties of niger (Guizotia abyssinicacass.) seed protein. International Journal of Food Science and Technology, 47. pp. 656-663.
![[thumbnail of International Journal of Food Science and Technology 2012, 47, 656–663.pdf]](http://ir.cftri.res.in/style/images/fileicons/application_pdf.png "International Journal of Food Science and Technology 2012, 47, 656–663.pdf")
PDF
International Journal of Food Science and Technology 2012, 47, 656–663.pdf - Published Version
Restricted to Registered users only
Download (664kB)
Abstract
The investigation aimed at preparing protein isolate from niger seeds and determining its nutritional profile,
functional properties and antioxidant potential. Niger seeds with 25.5% protein, 30% fat and 21.8% fibre
were used for preparation of dehulled, defatted niger seed flour (DNF) and protein isolate (NPI). Protein
content of DNF was 53.8% and NPI was 85.7%. Minerals, crude fiber and carbohydrate content reduced
from DNF to NPI. In vitro protein digestibility, iron and zinc dialysability increased significantly from DNF
to NPI with a corresponding decrease in fibre, tannin and phytate. Water and fat absorption capacity (FAC)
was higher in DNF and foaming and emulsification index was better in NPI. Polyphenol content of NPI was
higher than DNP. NPI exhibited significantly higher free radical scavenging ability and metal chelating
ability, hydroxyl radical scavenging activity was comparable to DNP. Studies on organo-leptic evaluation
and utilisation of NPI as a protein source in food formulations are warranted.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Emulsion, hydroxyl radical, iron dialysability, metal chelation, niger seed protein |
| Subjects: | 600 Technology > 08 Food technology > 19 Lipids-oils/fats > 01 Oilseeds 600 Technology > 08 Food technology > 32 Antioxidants |
| Divisions: | Protein Chemistry and Technology |
| Depositing User: | Food Sci. & Technol. Information Services |
| Date Deposited: | 30 May 2012 06:05 |
| Last Modified: | 29 Dec 2016 12:38 |
| URI: | http://ir.cftri.res.in/id/eprint/10793 |
Actions (login required)
- View Item