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Nutraceutical protein isolate from pigeon pea (Cajanus cajan) milling waste by-product: Functional aspects and digestibility.

Arun, Tapal and Vegarud, G. E. and Sreedhara, Ashoka and Purnima Kaul, Tiku (2019) Nutraceutical protein isolate from pigeon pea (Cajanus cajan) milling waste by-product: Functional aspects and digestibility. Food and Function, 10. pp. 2710-2719.

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Abstract

The aim of the present study was to utilize the protein from pigeon pea milling waste by-product for the preparation of protein isolate (PPI). The PPI was exposed to pepsin hydrolysis to reveal functional aspects like increased antioxidant capacity along with gelling ability. Complexation study demonstrated use of PPI as an encapsulating material for water insoluble bioactive compounds (curcumin). Fluorescence spectroscopy revealed the formation of a complex through hydrophobic interaction. Ex-vivo digestibility of PPI’s major proteins resulted in many peptides after digestion with human gastrointestinal enzymes. The peptide sequences identified may have potential biological activities as revealed by bioinformatic data analysis. The presence of bioactive peptides and essential amino acids in the ex-vivo digest suggests the role of PPI as a nutraceutical protein. The study provides a new value addition to the pigeon pea milling waste by-product, as a novel nutraceutical protein which can be used in functional food formulations.

Item Type: Article
Uncontrolled Keywords: Pigeon pea, Protein isolate, Antioxidant, Ex-vivo, Cajanus cajan, Curcumin
Subjects: 600 Technology > 08 Food technology > 16 Nutritive value > 07 Waste utilization
600 Technology > 08 Food technology > 18 Processed foods > 04 Functional foods
600 Technology > 08 Food technology > 22 Legumes-Pulses
Divisions: Protein Chemistry and Technology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 04 Jun 2019 06:37
Last Modified: 04 Jun 2019 06:37
URI: http://ir.cftri.com/id/eprint/14127

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