ArticleFoods (Basel, Switzerland)2022
Drying Characteristics and Quality Analysis of Medicinal Herbs Dried by an Indirect Solar Dryer.
Article in Foods (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Renewable energy-based drying of medicinal plants: enhancing efficiency, phytochemical retention, and quality.Journal of the science of food and agriculture · 2026Review
- Improved Hybrid Percolation-Ultrasound Extraction of Bioactive Compounds and Their Application as Nettle and Sage-Derived Biostimulants in Tomato and Pepper Crops.Foods (Basel, Switzerland) · 2025Article
- Modeling and Optimization of Microwave Vacuum Drying for Pinelliae Rhizoma: Integrating Drying Kinetics, Artificial Neural Networks, and Quality Preservation.Food science & nutrition · 2025Article
- Assessment of a LPG hybrid solar dryer assisted with smart air circulation system for drying basil leaves.Scientific reports · 2024Article
- Improvement of postharvest quality, secondary metabolites, antioxidant activity and quality attributes ofSaudi journal of biological sciences · 2023Article
- Methodological pipeline for monitoring post-harvest quality of leafy vegetables.Scientific reports · 2023Article
- Local knowledge, practices, challenges of ethnopharmacologically used medicinal plants in Benin and implications for brain illnesses.Scientific reports · 2023Article
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Authors and funding
4 authors.
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Abstract
Considering the solar radiation status in Oman, a low-cost, indirect, stand-alone, forced-convective solar dryer was developed to dry medicinal herbs, which are sensitive to direct sun. The hot air flow was obtained using a solar-panel-powered blower and air passing through a black-body solar collector. This drying process could extend the shelf life of herbs while preserving their medicinal and nutritional (physicochemical) properties and adhering to food safety and hygiene practices. This study investigated the benefits of an indirect solar drying technique on the retention of quality attributes of mint and basil used in medicinal applications. Herbs used during drying could be subjected to changes in their physicochemical properties such as color, water activity (Aw), total soluble solids (TSS), phenol content, antioxidant capacity, and moisture content (MC), and, thus, results were compared with fresh herb samples. The dryer chamber-maintained temperature and relative humidity regimes of 30-50 °C and 21-95% and the expected final moisture content (wet basis) was 10%. The dryer showed improved physicochemical quality parameters and the retention of green color with parameter ranges of Aw 0.44-0.63, phenol content (increase) 1705-8994 mg/100 g DM, and antioxidant capacity (increase) 0.61-0.67 µmol/g DM, respectively. This study showed the ability of developed solar dryers to preserve the physicochemical properties of medicinal herbs during drying and can extend to other food products.
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