Food Extraction with Microwave Technology
Microwave food extraction for bioactive compounds
The food extraction market is experiencing strong growth, driven by increasing demand for natural plant-based ingredients across the food and fragrance industries. Conventional industrial extraction methods such as solvent extraction and steam distillation remain slow, energy-intensive and inherently limited in the diversity of compounds they can recover.
High-efficiency extraction solutions
Microwave-assisted extraction, that can be combined with ultrasound, offers a faster and cleaner alternative: targeted energy penetrates the plant matrix, disrupts cell walls and releases a broader spectrum of bioactive compounds with greater precision, while preserving the organoleptic and physicochemical properties of sensitive aroma molecules.
Key advantages of microwave extraction
Novel compound extraction
Our technology enables the recovery of unique bioactive compounds that may not be accessible through conventional extraction methods, enhancing product functionality and value
Possible without solvent
Extractions can be performed without solvents, supporting clean-label production and safer processes for food and nutraceutical applications
High yield
Our technologies ensure maximum extraction efficiency, delivering high yields of target compounds
Huge treatment time reduction
Microwave-assisted extraction (MAE) dramatically reduces processing time — delivering in minutes what conventional methods take hours to achieve
High repeatability
Consistent and reliable results across batches
Flexibility
MAE adapts to a wide range of raw materials and process configurations, with fully adjustable temperature, power and solvent parameters.
Sustainable extraction
Fully electric and potentially solvent-free, microwave-assisted extraction reduces energy consumption and eliminates harmful emissions — for a cleaner, more sustainable production process.
Minimal utilities
Microwave and ultrasound-based extraction requires only electricity and water — eliminating the need for gas, steam or complex infrastructure and significantly reducing operating costs.
Raw materials for food extraction
From vanilla and citrus to herbs, roots and flowers, microwave-assisted extraction delivers consistent, high-yield recovery of their most valuable bioactive compounds.
Vanilla extraction
Microwave-assisted extraction enables fast and efficient recovery of vanillin while preserving the full aromatic richness of Vanilla planifolia. Compared to conventional methods, it significantly reduces processing time and solvent use.
- Significantly higher vanillin recovery
- Extraction in minutes instead of hours
- Preserved aromatic profile
- Reduced or solvent-free process
Citrus fruits extraction
Microwave extraction allows rapid and selective recovery of essential oils from citrus peels, preserving sensitive compounds like limonene, myrcene or citral thermal degradation.
- High yield of essential oils
- Preservation of volatile compounds
- Fast process
Plants & roots extraction
Microwave technology enhances the extraction of bioactive compounds from herbs and roots while maintaining their functional and organoleptic properties.
- Higher yield of bioactives (gingerol, polyphenols…)
- Compatible with water or oil-based media
- Ideal for nutraceutical and pharma applications
Flowers extraction
Microwave-assisted extraction preserves delicate floral compounds by enabling fast, low-temperature processing with minimal oxidation, and no overheating.
- Preservation of volatile aromatic molecules
- Low-temperature extraction (<80°C)
- Reduced solvent consumption
- High-quality extracts for perfumery & herbal use
NUTRIXTRACT RANGE
Discover Sairem’s extractors
NutriXtract industrial food extractors deliver fast, high-yield extraction of bioactive compounds from plants, roots, citrus and flowers.
Based on Microwave-Assisted Extraction (MAE), with or without ultrasound, NutriXtract reduces processing time dramatically while preserving the quality and integrity of sensitive extracts.
Available as continuous tunnel systems or batch reactors, our solutions adapt to your production scale — from R&D to full industrial output.
Here’s a questions-and-answers section about our food extraction solutions, with microwave technology.
The microwave energy heats the solvent and plant matrix simultaneously, causing rapid cell rupture and accelerated release of aromatic compounds into the extraction medium.
When properly controlled, microwave-assisted extraction does not degrade sensitive compounds. On the contrary, the speed of the process, combined with precise temperature control, limits thermal exposure and preserves the organoleptic and physicochemical properties of sensitive aroma molecules. The jacketed reactor of the NutriXtract Batch further ensures precise temperature management, protecting heat-sensitive extracts throughout the process.
With microwave-assisted extraction, you get a richer, more complete aromatic extract in 30 seconds instead of hours — unlocking compounds like thymol and carvacrol that maceration simply cannot reach — while using less solvent, cutting production time dramatically, and keeping full control over the flavour profile you want to deliver.
The combination of microwave and ultrasound delivers superior extraction performance that neither technology can achieve alone. Microwave energy breaks down cell walls while ultrasound cavitation mechanically amplifies the release of active molecules. The result is higher extraction yields, a broader spectrum of bioactive compounds and better preservation of heat-sensitive molecules — all achieved in a shorter processing time and with reduced solvent consumption.
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