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Alkalbani NS, Alam MZ, Al-Nabulsi A, Osaili TM, Obaid RR, Liu SQ, Kamal-Eldin A, Ayyash M. Unraveling the potential nutritional benefits of fermented date syrup waste: Untargeted metabolomics and carbohydrate metabolites of in vitro digested fraction. Food Chem 2024; 442:138483. [PMID: 38241989 DOI: 10.1016/j.foodchem.2024.138483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 12/09/2023] [Accepted: 01/15/2024] [Indexed: 01/21/2024]
Abstract
Valorization of fruit by-products is a crucial area of research for the development of innovative bio-based products. This study investigated the physicochemical properties and health-promoting benefits of date syrup waste, both fermented by Pichia cecembensis or Pichia kudriavzevii (FDSW), and unfermented (CDSW). Metabolomics profiles of these samples were identified post in vitro digestion. FDSW exhibited 42 volatile compounds, including 9 new ones, and contained (-)-epicatechin, tyrosol, and gallic acid. Bioaccessible fractions of FDSW demonstrated substantial α-amylase inhibition, with percentages of 40.7 % and 53.9 %, respectively. FDSW displayed superior cytotoxicity against Caco2 and MCF-7 cancer cell lines, with an average of ∼75 % and 56 %, respectively. Untargeted metabolomics analysis revealed an increase in secondary metabolites, totaling 27 metabolites. LC-QTOF analysis of bioaccessible carbohydrate metabolites in FDSW identified two phytochemical groups, alkaloids, and terpenoids. This study underscores the potential of FDSW for producing value-added bio-based products with desirable characteristics and health benefits.
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Affiliation(s)
- Nadia S Alkalbani
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al Ain, P.O. Box 15551, United Arab Emirates
| | - Muneeba Zubair Alam
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al Ain, P.O. Box 15551, United Arab Emirates
| | - Anas Al-Nabulsi
- Department of Nutrition and Food Technology, Jordan University of Science and Technology, Irbid 21121, Jordan
| | - Tareq M Osaili
- Department of Nutrition and Food Technology, Jordan University of Science and Technology, Irbid 21121, Jordan; Department Clinical Nutrition and Dietetics, University of Sharjah, Sharjah, P.O. Box 27272, UAE
| | - Reyad R Obaid
- Department Clinical Nutrition and Dietetics, University of Sharjah, Sharjah, P.O. Box 27272, UAE
| | - Shao-Quan Liu
- Department of Food Science and Technology, Faculty of Science, National University of Singapore, Singapore 117542, Singapore
| | - Afaf Kamal-Eldin
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al Ain, P.O. Box 15551, United Arab Emirates
| | - Mutamed Ayyash
- Department of Food Science, College of Agriculture and Veterinary Medicine, United Arab Emirates University (UAEU), Al Ain, P.O. Box 15551, United Arab Emirates; Zayed Center for Health Sciences, United Arab Emirates University (UAEU), Al-Ain, P.O. Box 15551, United Arab Emirates.
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