Transforming lemon Peel into a sustainable reservoir of bioactives: A green osmotic dehydration strategy
Osmotic dehydration (OD) is a sustainable alternative, offering reduced energy consumption compared to traditional drying approaches. This study investigates the role of OD in stabilizing bioactive compounds in lemon peel, fostering sustainable citrus by-product applications. Employing Response Surface Methodology (RSM) framework, pivotal variables-temperature (30-60 °C), exposure time (60-180 min), and sucrose concentration (50-70°Brix)-were optimized to enhance water loss (WL) and solid gain (SG) while safeguarding bioactive retention. The optimal conditions (58.92 °C, 70°Brix, 159 min) yielded a WL of 3.4 g/g, SG of 1.5 g/g, and high sensory acceptability. The OD treated lemon peel powder exhibited substantial retention of bioactive compounds, including ascorbic acid (4.1 mg/g) and total phenols (2.3 mg gallic acid/g), surpassing untreated controls. This enhanced bioactive profile underscores its potential as a sustainable and functional ingredient in nutraceutical applications.
Authors
- Priyanka Prajapati (ORCID: https://orcid.org/0000-0002-4590-181X)
- Safia Obaidur Rab (ORCID: https://orcid.org/0009-0000-2021-4450)
- Madhu Kamle (ORCID: https://orcid.org/0000-0002-7764-1418)
- Susmita Dey Sadhu (ORCID: https://orcid.org/0000-0002-2524-1412)
- Mοhd Saeed (ORCID: https://orcid.org/0000-0003-3443-386X)
- Meenakshi Garg (ORCID: https://orcid.org/0000-0001-5562-6666)
- Rajni Chopra (ORCID: https://orcid.org/0000-0002-9566-2415)
- Dipendra Kumar Mahato (ORCID: https://orcid.org/0000-0001-8857-2326)
- Abhishek Dutt Tripathi (ORCID: https://orcid.org/0000-0003-3645-9174)
- Aparna Agarwal (ORCID: https://orcid.org/0000-0002-8626-0617)
- N. Singh (ORCID: https://orcid.org/0000-0002-1135-3456)
- Eram Rao (ORCID: https://orcid.org/0000-0003-0037-1576)
- Pradeep Kumar
- Chhavi Porwal
Institutions
- University of Delhi (IN)
- Deakin University (AU)
- University of Lucknow (IN)
- National Institute of Food Technology Entrepreneurship and Management (IN)
- University of Ha'il (SA)
- King Khalid University (SA)
- Banaras Hindu University (IN)
Publication Details
- Journal
- Food Chemistry X
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1016/j.fochx.2025.102172
- Citations
- 4
- Primary Topic
- Bee Products Chemical Analysis
- Type
- article
- Field-Weighted Citation Impact
- 6.69
Funders
- University of Delhi
- King Khalid University