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278632

Healthy sorbet with eggplant peel and beet stalk-leaves extracts as natural colorants

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Food Chemistry

Abstract

Foods colour is a crucial component and has a big impact on how people will react to it. Natural dyes that have antioxidant and antibacterial effects in addition to their use as natural colourants should be used instead of toxic industrial dyes by people. The phytochemicals, antioxidant activity, and antibacterial activity of beet stalk-leaves and eggplant peel extracts were identified in these studies. In comparison to beet stalk- leaf extract, eggplant extract had higher levels of total phenols, anthocyanins, and flavonoids (50.21 mg GAE/g, 2.3 mg MvE/g, and 7.17 mg CE/g). In contrast to eggplant peel extract, beet stalk-leaf extract had higher concentrations of chlorophyll A, chlorophyll B, and carotene (1.42, 0.6, and 68.7 mg/g, respectively). In eggplant peel, the antioxidant activity was 18.31 and 14.39 mg TE/g.in eggplant peel and beet stalk-leaves extracts. The extracts were more effective on positive- gram bacteria and saccharomyces cerevisiae than negative- gram bacteria. The addition of extracts improve the quality of sorbet where the highest titratable acidity: total soluble solids (TSS: TAA) ratio was found in 2% beetroot stalk-leaf extract sorbet (23.47) compared to (sorbet with tartrazine dye). The parameter L* (lightness) and a*(redness) of sorbet decreased while the b* (yellowness) value Increased by increasing the concentration of extract. Using natural pigments improve the taste from 8.17 in sorbet with tartrazine dye to 8.67 in 2% eggplant peel extract sorbet. This study aims to overcome the problems of artificial colors and their health damage using eggplant peel and beetroot stalk-leaf extracts and application in sorbet.

DOI

10.21608/ejchem.2023.172173.7144

Keywords

eggplant peel, beet stalk– leaves, natural pigments, Tartrazine, Sorbet

Authors

First Name

Fatma

Last Name

abdel-aziz

MiddleName

Mohammed

Affiliation

Food Science and Technology Dept., Faculty of Home Economic, Al-Azhar University, Tanta, Egypt.

Email

fatmamohammedabdel-aziz@zhar.edu.eg

City

Tanta

Orcid

-

First Name

Ramadan

Last Name

Aboelhaggag

MiddleName

Mohamed

Affiliation

Food Technology Dept., Food Industries and Nutrition Institute, National Research Centre, Cairo, Egypt.

Email

rm.abdel-hafez@nrc.sci.eg

City

luxor

Orcid

0000-0002-1394-4495

First Name

Eman

Last Name

Abo-Zaid

MiddleName

Mohammed

Affiliation

Food Science and Technology Dep., Faculty of Home Economic, Al-Azhar University, Tanta, Egypt.

Email

emanabozaid1989.el@azhar.edu.eg

City

Cairo

Orcid

-

Volume

66

Article Issue

9

Related Issue

43167

Issue Date

2023-09-01

Receive Date

2022-11-02

Publish Date

2023-09-01

Page Start

145

Page End

157

Print ISSN

0449-2285

Online ISSN

2357-0245

Link

https://ejchem.journals.ekb.eg/article_278632.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=278632

Order

278,632

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Healthy sorbet with eggplant peel and beet stalk-leaves extracts as natural colorants

Details

Type

Article

Created At

30 Dec 2024