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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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
Extraction of bioactive compounds such as THC and CBD from cannabis can be performed with different techniques. Ultrasonic extraction equipment has many benefits which makes it the superior extraction method. Due to its high yields, high quality extracts, rapid…https://www.hielscher.com/cannabis-extraction-equipment-the-advantage-of-sonication.htm
Bitter melons (also known as bitter apple, bitter gourd, bitter squash, balsam-pear) is a fruit high in health-beneficial compounds such as antioxidants, flavonoids, phytosterols, and saponins. Sonication is well known to intensify the extraction of bioactive substances from botanicals.…https://www.hielscher.com/ultrasonic-extraction-of-bioactive-compounds-from-bitter-melon.htm
Pectins are a very frequently used food additive, mainly added for its gelling effects. Ultrasonic extraction increases the yield and quality of pectin extracts significantly. Sonication is known for its process intensifying effects, which are already used in manifold…https://www.hielscher.com/ultrasonic-pectin-extraction-from-fruit-and-bio-waste.htm
The conventional decaffeination process of coffee and tea requires the use of toxic solvents. Ultrasonic decaffeination is an effective alternative that allows to remove caffeine using a water-based extraction without the use of harsh solvents. Ultrasonic decaffeination is an…https://www.hielscher.com/solvent-free-decaffeination-with-power-ultrasound.htm