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164319

Some Technical Aspects Affecting Rice Bran Stability for Functional Components Recovery

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Last updated: 23 Jan 2023

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Abstract

In commercial rice production, brown rice is commonly produced by polishing, this produce rice bran, among other by-products. This investigation  aimed to study the effect of stabilization methods on rice bran for functional components recovery. To achieve this goal lipase enzyme activity was inhibited by heating rice bran in microwave to stabilized rice bran at 850 W for 3 minutes, hot air at 150oC for 10 min and steaming at 130oC for 60 min. Then extracting crude oil by solvent and screw press. The defatted rice bran was used in making cookies and biscuits. Some bioactive components were determined. The obtained results of oil yield with microwave 850Wat 3 min was 19.97%. Peroxide value and free fatty acid were (6.33 meq/kg oil) and (2.88%) in microwave. Total phenolic content of rice bran oil was 18.62(mg gallic acid equivalent (GAE) /g oil).  Gamma oryzanol was 15.37and 28.43g/100g for hexane and isopropanol extraction respectively. Tocopherols were 298.54 and 372.31(µg/g) for hexane and isopropanol extraction respectively. Tocotrienols were 492.62 and 595.76(µg/g) for hexane and isopropanol extraction respectively. Radical scavenging activity DPPH as (% inhibition) was 72.56 in microwave.

Keywords

rice bran, brown rice, screw press, gamma oryzonol, tocopherols

Authors

First Name

Abdelsalam

Last Name

Marei

MiddleName

Mahmoud Abdelsalam

Affiliation

Rice Technology Training Center, Field Crop Research Institute, Agricultural Research Center.

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First Name

Mohamed

Last Name

Zeitoun

MiddleName

Abdelhameed Mohamed

Affiliation

Food Science dep., Faculty of Agriculture (Saba-Basha), Alexandria University.

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City

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Orcid

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First Name

Ahmed

Last Name

El Hissewy

MiddleName

Abdelkader

Affiliation

Rice researches, Field Crop Research Institute, Agricultural Research Center.

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Volume

22

Article Issue

1

Related Issue

23951

Issue Date

2017-03-01

Receive Date

2016-08-18

Publish Date

2017-03-31

Page Start

24

Page End

45

Print ISSN

1110-5585

Online ISSN

2785-9525

Link

https://jalexu.journals.ekb.eg/article_164319.html

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https://jalexu.journals.ekb.eg/service?article_code=164319

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2

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/

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Article

Created At

23 Jan 2023