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19637

Extraction, IdentificationandEvaluationofAntioxidantActivityinSomeHerbs and Spices

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Last updated: 03 Jan 2025

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Abstract

Addition of synthetic antioxidants can control lipid oxidation in foods, but their use has become restricted because of their health risks and toxicity. The increasing consciousness of consumers, with regard to food additive safety, created a need for identifying alternative natural and safer sources of food antioxidants. Green tea, sage, caraway, rosemary, ginger, anise, coriander, fenugreek, cumin and black cumin were subjected to screening for its phenolic compounds using TLC. Then, they were extracted with methanol. The phenolic compounds were identifiedinthemethanolicextractsusingHPLC,andthenevaluatedfor their antioxidant activity. The obtained results revealed that green tea contained the highest amount of total phenolic content 155.72 g/kg followed by sage (82.8 g/kg), and ginger contained the lowest amount (25.7 g/kg). Eight phenolic compounds were separated and identifiedfromgreentea,ninefromsageandfour from caraway. Moreover, it was found from this study, that green tea extract showed antioxidant activity similar to TBHQ at the same concentration. Green tea showed antioxidant activity two folds of sage and four folds of caraway extract

DOI

10.21608/ajfs.2007.19637

Keywords

Oxidation, natural antioxidant, synthetic antioxidant, Phenolic compounds, herbs, Spices

Volume

4

Article Issue

2

Related Issue

3992

Issue Date

2007-12-01

Receive Date

2018-11-21

Publish Date

2007-12-01

Page Start

27

Page End

39

Print ISSN

1687-3920

Link

https://ajfs.journals.ekb.eg/article_19637.html

Detail API

https://ajfs.journals.ekb.eg/service?article_code=19637

Order

4

Type

Original Article

Type Code

638

Publication Type

Journal

Publication Title

Alexandria Journal of Food Science and Technology

Publication Link

https://ajfs.journals.ekb.eg/

MainTitle

Extraction, IdentificationandEvaluationofAntioxidantActivityinSomeHerbs and Spices

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Type

Article

Created At

22 Jan 2023