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Date fruit processing waste and approaches to its valorization: A review.
Sepideh Oladzad1, Narges Fallah2, Amir Mahboubi3
1Swedish Centre for Resource Recovery, University of Borås, 501 90, Borås, Sweden; Department of Chemical Engineering, Amirkabir University of Technology, 15875-4413, Tehran, Iran.
Bioresource Technology
|July 31, 2021
Summary
Date press cake (DPC), a byproduct of date processing, has significant nutritional value. This review explores valorizing DPC into valuable products, offering a sustainable alternative to waste disposal.
Area of Science:
- Agricultural Science
- Biotechnology
- Waste Management
Background:
- Dates are a vital crop in the Middle East and North Africa, integral to local diets and economies.
- Date processing generates substantial waste, with Date Press Cake (DPC) comprising 17-28% of juicing byproducts.
- Current disposal of DPC in open lands poses environmental concerns.
Purpose of the Study:
- To assess the feasibility of Date Press Cake (DPC) as a green precursor for various applications.
- To analyze the chemical and nutritional composition of dates and DPC.
- To review existing and potential valorization pathways for DPC.
Main Methods:
- Comprehensive literature review on date processing and DPC valorization.
- Analysis of chemical and nutritional profiles of date fruits and DPC.
- Overview of date processing industries and waste generation.
Main Results:
- DPC is rich in nutrients and can be valorized into high-value products like volatile fatty acids and activated carbon.
- Identified various chemical and biological processes suitable for DPC conversion.
- Highlighted the potential for DPC to serve as a sustainable precursor.
Conclusions:
- Date Press Cake (DPC) represents a valuable, underutilized resource.
- Valorization of DPC offers significant economic and environmental benefits.
- Further research into DPC conversion technologies is warranted for sustainable industrial practices.
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