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160521

Antioxidant Activity and Quality Attributes of Ostrich Meat Nuggets as Affected by Addition of Broccoli Powder

Article

Last updated: 23 Jan 2023

Subjects

-

Tags

Food Science and technology

Abstract

Natural antioxidants are in great demand today due to both consumer preference and health concerns associated with the use of synthetic antioxidants, so this study was carried out to investigate the antioxidant compounds in broccoli powder (Bp) and to evaluate it as a source of natural antioxidants in ostrich nuggets production. The effect of addition of the Bp at different levels (0, 2, 4, 6 and 8%) on the most important of quality criteria (chemical composition, physical and sensory attributes) of ostrich nuggets compared with control and BHA (150 mg/kg) nuggets was investigated. Oxidative activity of Bp and ostrich nuggets contained Bp was evaluated by DPPH free radical scavenging  , ABTS and ferric reducing power methods. The increased Bp levels resulted in a significant (p < 0.0) increase in ash and crude fiber and a decrease in the percentage of moisture, crude protein and fat. Bp had high amounts of polyphenols, flavonoid and glucosinolates (17.955, 56.56 and 9.15 mg/g, respectively). Broccoli powder was found to delay lipid peroxidation of ostrich nuggets as measured by TBA number, ostrich nuggets contained Bp (8%) has lower TBA value than control and BHA nuggets. Incorporation of broccoli powder resulted in significant decrease in cooking loss and shrinkage of ostrich nuggets and significantly (p < 0.05)  increased in cooking yield compared with control and BHA nuggets. The results indicated that ostrich nuggets contained Bp at 8% has high antioxidant activity (DPPH%, ABTS % or reducing power) which was higher than the control sample and BHA nuggets. Sensory evaluation of ostrich nuggets indicated that all addition levels were well accepted in all organoleptic properties as compared to control sample. Consequently, it could be concluded that broccoli powder might be used instead of synthetic antioxidants, as the addition of broccoli powder up to 8% had no adverse effect on the organoleptic properties or without affecting the acceptability  of ostrich nuggets. Thiobarbituric acid value and sensory attributes of ostrich  nuggets was lower (p < 0.05) than control throughout the refrigerated storage at 4ºC for 15 day. It can be concluded that broccoli powder as a natural source of antioxidants can be recommended to increase the shelf life of food products containing fats and oils, which is safe and can impart health benefits to the consumer.

DOI

10.21608/jalexu.2014.160521

Keywords

Broccoli powder, ostrich nuggets, Phenolic compounds, antoxidative activity, DPPH, ABTS, Reducing power, Sensory propertie

Authors

First Name

Samia

Last Name

Farag

MiddleName

-

Affiliation

Department of Food Sci. and Tech. , Fac. of Home Economic , Al - Azhar Univ., Tanta, Egypt.

Email

lenaspp@yahoo.com

City

-

Orcid

-

Volume

19

Article Issue

3

Related Issue

23486

Issue Date

2014-09-01

Receive Date

2014-07-15

Publish Date

2014-09-01

Page Start

552

Page End

575

Print ISSN

1110-5585

Online ISSN

2785-9525

Link

https://jalexu.journals.ekb.eg/article_160521.html

Detail API

https://jalexu.journals.ekb.eg/service?article_code=160521

Order

10

Type

Research papers

Type Code

1,789

Publication Type

Journal

Publication Title

Journal of the Advances in Agricultural Researches

Publication Link

https://jalexu.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

23 Jan 2023