Physical Characteristics, Mineral Content, and Antioxidant and Antibacterial Activities of Punica granatum or Citrus sinensis Peel Extracts and Their Applications to Improve Cake Quality

Research Abstract

One-third of all food produced for human use is discarded as waste, resulting in environmental pollution and impaired food security. Fruit peels have bioactive compounds that may be used as antimicrobials and antioxidants, and the use of fruit peels is considered an alternative way to reduce environmental problems and agro-industrial waste. The aim of this study was to evaluate the phytochemical, mineral, extraction yield, total phenolic, total flavonoids, antioxidant, and antibacterial activity of several peel fruits, including Citrus sinensis (orange) and Punica granatum (pomegranate). The results revealed that pomegranate peel powder contains the highest amounts of ash, fiber, total carbohydrates, Ca, Fe, Mg, and Cu, while orange peel contains the highest amounts of moisture, protein, crude fat, P, and K. Furthermore, the aqueous and methanolic pomegranate peel extracts yielded higher total phenolic and total flavonoids than the orange peel extract. The identification and quantification of polyphenol compounds belonging to different classes, such as tannins, phenolic acids, and flavonoids in pomegranate peel and flavonoid compounds in orange peel were performed using UPLC-MS/MS. In addition, GC-MS analysis of orange peel essential oil discovered that the predominant compound is D-Limonene (95.7%). The aqueous and methanolic extracts of pomegranate peel were proven to be efficient against both gram-positive and gram-negative bacteria linked to human infections. Sponge cake substituting wheat flour with 3% pomegranate peel and 10% orange peel powder had the highest total phenolic, flavonoid compounds, and antioxidant activity as compared to the control cake. Our results concluded that pomegranate and orange peel flour can be used in cake preparation and natural food preservers.

Research Authors
Hossam S El-Beltagi, Nareman S Eshak, Heba I Mohamed, Eslam SA Bendary, Amal W Danial
Research Date
Research Department
Department Home Economics
Research Journal
Plants
Research Member
Nareman Saed Eshak Bahna
Research Website
https://doi.org/10.3390/plants11131740
Research Year
2022

The Department of Art Education, Faculty of Specific Education, Assiut University, extends its sincere heartfelt congratulations to the artist, Dr. Fatima Mohamed Magdy, Teacher of Photography, Department of Art Education.

The Department of Art Education, Faculty of Specific Education, Assiut University, extends its sincere heartfelt congratulations to the artist, Dr. Fatima Mohamed Magdy, Teacher of Photography, Department of Art Education.

For winning the final screening of the artworks participating in the fourth Dhai Festival for Arab Youth

With the best wishes of the Technical Communication Committee of the department for continued success, excellence and creativity 

The Department of Art Education, Faculty of Specific Education, Assiut University, has the honor to invite you to attend the opening of the exhibition "Our Contemporary Gift" by the artist Dr. Doaa Al-Maraghi, teacher of textile printing

The Department of Art Education, Faculty of Specific Education, Assiut University, has the honor to invite you to attend the opening of the exhibition

"Our Contemporary Gift"

For the artist Dr. Doaa Al-Maraghi, teacher of textile printing in the department

And that will be on Thursday corresponding to

10/11/2022

At 12 noon in the main exhibition hall of the college

With the best wishes of the Technical Communication Committee for continued success, excellence and creativity

Coinciding with the International Lunch, October 16, the Department of Home Economics will prepare an event for healthy food and its importance through the service center at the college under the title "Eat This Not That"

Under the auspices of

Prof. Dr. Wajdi Refaat Farid, Dean of the Faculty of Specific Education

And Prof. Dr. Yasmin Ahmed Al-Kahki, Head of the Department of Home Economics

Coinciding with the International Lunch, corresponding to October 16, the Department of Home Economics will prepare an event for healthy food and its importance through the service center in the college

Under the title "Eat This Not That"

Which will be held on Tuesday, October 18, 2022 AD at eleven o'clock in the morning in the conference hall of the Faculty of Specific Education

Participation of the Faculty of Specific Education in the celebrations of the new city of Assiut on the birth of the Prophet and the anniversary of the victories of the glorious October War

Participation of the Faculty of Specific Education in the celebrations of the new city of Assiut on the birth of the Prophet and the anniversary of the victories of the glorious October War


The work team of the Electronic Services Unit at the Faculty of Specific Education, Assiut University, extends its sincere condolences and sympathy to Dr. Alaa Mustafa, Assistant Lecturer in the Department of Home Economics

The work team of the Electronic Services Unit at the Faculty of Specific Education, Assiut University, extends its sincere condolences and sympathy to Dr. Alaa Mustafa, Assistant Lecturer in the Department of Home Economics, on the death of her father. May God have mercy on him and inspire the family patience and solace

The team of the Electronic Services Unit at the Faculty of Specific Education, Assiut University, extends its kind congratulations to Prof. Dr. Montaser Al-Qolali

The team of the Electronic Services Unit at the Faculty of Specific Education, Assiut University, extends its kind congratulations to Prof. Dr. Montaser Al-Qolali
To be promoted to the rank of professor of Arabic music in the Department of Music Education at the Faculty of Specific Education, Assiut University and to further advancement and high positions

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Media Department:

Important warning at all stages Assiut University students speed of progress and registration on the website of the Department of Military Education on the following link

http://aun.aun.edu.eg/arabic/milit_edu/stu_reg.php

Exam and research online on Sunday20/11/2022 from 12:00 noon until Monday21/11/2022 session No. 18 held from 20/11/2022 to 3/12/2022

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