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Rababah TM, Al-U’datt MH, Angor M, Gammoh S, Abweni F, Magableh G, Almajwal A, Yücel S, AL-Rayyan Y, AL-Rayyan N. Effect of Drying and Freezing on the Phytochemical Properties of Okra during Storage. ACS Omega 2023; 8:34448-34457. [PMID: 37779931 PMCID: PMC10536064 DOI: 10.1021/acsomega.3c02560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 08/21/2023] [Indexed: 10/03/2023]
Abstract
Okra (Abelmoschus esculentus L.) is known for its high nutritional value, including its content of phytochemicals. This study aims to investigate the effect of drying and freezing conditions on the phytochemical content of okra. Our results indicated that both air-drying and freezing okra during 6 months of storage showed a significant decrease in total phenolic content, flavonoid content, anthocyanin content, and antioxidant activity. Furthermore, higher levels of phytochemicals were found for okra samples treated with Na2SO4 solution when compared to untreated okra. The freezing process appeared to better preserve the content of the investigated phytochemicals when compared to the decrease after drying. Our research has determined that both immersing and freezing okra samples consistently yielded better results in the preservation of phytochemical properties over time, compared to other methods. This study is important for the food industry, as it highlights the importance of proper storage methods to retain the nutritional value of okra.
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Affiliation(s)
- Taha M. Rababah
- Department
of Nutrition and Food Technology, Jordan
University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan
| | - Muhammad H. Al-U’datt
- Department
of Nutrition and Food Technology, Jordan
University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan
| | - Malak Angor
- Nutrition
and Food Technology, Al-Balqa Applied University, Salt 19117, Jordan
| | - Sana Gammoh
- Department
of Nutrition and Food Technology, Jordan
University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan
| | - Faten Abweni
- Department
of Nutrition and Food Technology, Jordan
University of Science and Technology, P.O. Box 3030, Irbid 22110, Jordan
| | - Ghazi Magableh
- Industrial
Engineering Department, Yarmouk University, P.O. Box 21163, Irbid 21163, Jordan
| | - Ali Almajwal
- Department
of Community Health Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia
| | - Sevil Yücel
- Yildiz
Technical University, Istanbul 34210, Turkey
| | - Yara AL-Rayyan
- College
of
Agriculture and Life Sciences, University
of Wisconsin-Madison, Madison, Wisconsin 53706-1314, United States
| | - Numan AL-Rayyan
- School
of Medicine and Public Health, University
of Wisconsin-Madison, Madison, Wisconsin 53706-1314, United States
- National
Agricultural Research Center, Amman 19381, Jordan
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