4218

Effect of Different Extraction Methods on Stablity of Anthocyanins Extracted from Red Onion peels (Allium cepa) and Its Uses as Food Colorants

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Last updated: 03 Jan 2025

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Abstract

he present work was carried out to produce a natural red color (anthocyanins) from red onion peels (Allium cepa) by four different solvent for coloring some food product. The results showed that acidified ethanol (0.01%Hcl) had the greatest efficient in extracting red onion peels anthocyanins followed by acidified methanol (0.01% Hcl), while acidified distilled water (0.01%) and distilled water are the less effective. At low pH(2.0and3.0),natural anthocyanins extracts exhibited  their greatest stabilities. Red onion peels anthocyanins extracts by acidified methanol was heated for 30 min at temperatures of 40, 60, 80 and 100◦c retained 99.16, 98.79, 91.56 and 69.45 %, respectively. The highest stability of anthocyanins extracted by both of acidified methanol and ethanol was at 40 to 80◦c until holding time reached to 60 min. Color and overall acceptability of hard candy containing 0.3% natural anthocyanins extracted from red onion peels by acidified methanol recorder highly score with synthetic color (Allure).On the other hand, glazing jelly containing 0.25% natural anthocyanins extracted from red onion peels by all solvents recorded closely score with synthetic color.

DOI

10.21608/bnni.2016.4218

Keywords

onion peels, Natural color, Anthocyanins, Extraction, stability, Uses

Authors

First Name

Om-Hashem

Last Name

Ali

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Affiliation

Food health Dept., National Nutrition Institute, Cairo, Egypt

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First Name

Hanan

Last Name

Al-sayed

MiddleName

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Affiliation

Food Science Dept., Fac. of Agriculture, Ain Shams Univ., Cairo, Egypt

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Orcid

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First Name

Nessrien

Last Name

Yasin

MiddleName

-

Affiliation

Food Science Dept., Fac. of Agriculture, Ain Shams Univ., Cairo, Egypt

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Orcid

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First Name

Effat

Last Name

Afifi

MiddleName

-

Affiliation

Food health Dept., National Nutrition Institute, Cairo, Egypt

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Orcid

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Volume

47

Article Issue

2

Related Issue

718

Issue Date

2016-11-01

Receive Date

2017-11-19

Publish Date

2016-11-01

Page Start

1

Page End

24

Print ISSN

1110-0974

Online ISSN

2537-0987

Link

https://bnni.journals.ekb.eg/article_4218.html

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https://bnni.journals.ekb.eg/service?article_code=4218

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4

Type

Original Article

Type Code

442

Publication Type

Journal

Publication Title

Bulletin of the National Nutrition Institute of the Arab Republic of Egypt

Publication Link

https://bnni.journals.ekb.eg/

MainTitle

Effect of Different Extraction Methods on Stablity of Anthocyanins Extracted from Red Onion peels (Allium cepa) and Its Uses as Food Colorants

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Article

Created At

22 Jan 2023