Utrasonic topic: "polyphenols"
Polyphenols or polyhydroxyphenols are chemical compounds that occur in nature, but can be also synthesized chemically. As polyphenols act as antioxidants, they are known as health-beneficial bio-compound and the consumption of polyphenol-rich foods such as fruits, vegetables, cereals, tea and coffee is linked to a reduced risk of chronic diseases.
Fruits like berries, grapes, apples, pears, and cherries show a high polyphenol content containing up to 200–300mg polyphenols per 100 grams fresh weight. Subsequently, products manufactured from these fruits, also contain significant amounts of polyphenols.
The class of polyphenols includes tannins, catechins, epicatechins, flavanones, isoflavones, phloridzin, quercitin etc. In foods, polyphenols contribute to the bitterness, astringency, color, flavor, smell and oxidative stability. Therefore, polyphenol extracts, e.g. from grape skin, grape seeds, olive pulp, citrus peel, or maritime pine bark, are sold as ingredients for functional foods, dietary supplements, and cosmetics.
As secondary metabolites of plants, polyphenols are located within the cell matrix. In order to produce polyphenol-rich foods such as olive oil, wine, juices, purees or extracts, the polyphenols must be released from the plant cells. Ultrasonic extraction is a powerful method to break cell structures of botanicals and to release them into the surrounding liquid. As a non-thermal technique, ultrasonic extraction prevents the thermal decomposition of the heat-labil polyphenols. At the same time, sonication is a process-intensifying method, which increases the extraction yield and accelerates the process speed. Ultrasonic extraction is used to produce superior polyphenol extracts. Available from lab to industrial scale, ultrasonic processors can be easily implemented into your production line to improve your extraction process.
Read more about the benefits of ultrasonic extraction of polyphenols from botanical raw materials!
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Edible oils are used for manifold applications in cooking and food production. Mechanical extraction of edible oils prevents the oils from degradation. Ultrasonic extraction of edible oils is a superior method to release oils from seeds, kernels and fruits.…https://www.hielscher.com/ultrasonic-extraction-of-edible-oils.htm
Garlic (Allium sativum) is rich in organosulfur compounds (e.g. allicin, glutathione), which promote many health benefits. Ultrasonic extraction is a reliable and efficient technique to produce highly concentrated garlic extracts. Ultrasonication results in high yields of high quality, full…https://www.hielscher.com/ultrasonic-solvent-free-garlic-extraction.htm
Ultrasonic extraction is the preferred technique to isolate bioactive compounds from botanicals. Sonication achieves a complete extraction and thereby superior extract yields are obtained in a very short extraction time. Being such an efficient extraction method, ultrasonic extraction is…https://www.hielscher.com/ultrasonic-extraction-and-its-working-principle.htm
Ultrasonic extraction is the superior method to disrupt algae cells effectively and rapidly. Sonication can release the complete amount of the bioactive compounds, which makes the ultrasonic technique highly efficient. How To Extract Proteins, Lipids and Phenolics from Algae…https://www.hielscher.com/ultrasonic-algae-extraction-for-nutritional-supplements.htm
Catechin such as epigallocatechin gallate (EGCG), epigallocatechin (EGC), epicatechin gallate (ECG), and epicatechin (EC) are polyphenols, which show significant health benefits. Whilst catechin are found in smaller amounts in green tea, cocoa, fruits and some other foods, for high…https://www.hielscher.com/superior-catechin-extracts-with-ultrasonics.htm
Hops and hop extracts are essential ingredients for the production of beer. The alpha-acids a-caryophyllene (humulone) and beta-caryophyllene (humulene) are important flavour compounds, which give beer its bitterness and contribute to its aroma, foam structure, and microbiological stability. Ultrasonic extraction…https://www.hielscher.com/efficient-production-of-hops-extracts-by-sonication.htm
Mustard condiment is produced from mustard flour and water or vinegar. Ultrasonic processing of mustard is a rapid and efficient method to release the full flavour spectrum from the ground mustard seeds. In a non-thermal, mild shear process, ultrasonic…https://www.hielscher.com/improved-mustard-production-with-power-ultrasound.htm
Ultrasonic aromatisation and flavouring of edible oils is based on the ultrasonic extraction of flavour compounds from botanicals such as herbs, spices, fruits etc. Sonication is a process intensifying method, which releases bioactive components into the oil. As a…https://www.hielscher.com/maceration-and-aromatisation-by-sonication.htm
Hemp oil or CBD oil is all the rage for its exceptional health benefits. The extraction method and equipment, which is used to isolate the cannabinoids from the hemp plant, influence the quality and yield of the CBD oil…https://www.hielscher.com/hemp-extraction-by-ultrasonic-equipment.htm
Ellagitannins are a precursor for the age-defying compound urolithin A, which is converted from ellagitannins by the gut microbiome. Ultrasonic extraction promotes the release of ellagitannins from fruit and vegetal cells to produce supplements and pharmaceuticals with a highly…https://www.hielscher.com/ellagitannin-extraction-from-pomegranate.htm
Saponin extracts of the Quillaja saponaria Molina tree are the main source of saponins for industrial applications. Ultrasonic extraction of Quillaja saponins yields in high quality saponins. Ultrasonic extraction is a highly efficient method to produce high yields of…https://www.hielscher.com/ultrasonic-extraction-of-quillaja-saponins.htm
Anthocyanins are widely used as natural colorant and nutritional additive in food products. Ultrasonic extraction promotes the release of high-quality anthocyanins from plants resulting in higher yields and a rapid process. Sonication is a mild, green and efficient technique…https://www.hielscher.com/ultrasonic-anthocyanin-extraction.htm