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Pr Meireles will present different methods of Polyphenols Extraction at the workshop "Utilization of By-products of Food Processing" during the 9th World Congress on Polyphenols Applications

Pr Meireles 2During the Workshop at the Malta Polyphenols World Congress 2015 held on June 3-5, Pr Meireles will present Extraction of Polyphenols From Food By-Products Using Green Solvents: Supercritical Carbon Dioxide, Pressurized Ethanol, Ethanol And Water.

 

"In this talk, a discussion of extraction of polyphenols from food by-products will,be presented. The presentation will be focused on obtaining polyphenols using supercritical fluid extraction using water (SFEW)1 and ethanol (SFE-EtOH)2 as cosolvents, the use of pressurized ethanol extraction and the use of lowpressure ethanol extraction. The use of polyphenols using supercritical fluid extraction with ethanol as cosolvent will be focused in the use of residue of jabuticaba (Myrciaria cauliflora) and grape bagasse from the Peruvian Pisco industry. "

 

To know more about the workshop on Utilization of By-products of Food Processing and the Malta Polyphenols World Congress 2015, click here.

Pr Dimitrov will give a talk about Polyphenols from Berry By-Products during the workshop of Malta Polyphenols Congress 2015

dr Krasimir DimitrosDuring the Workshop Utilization of by-Products of Food Processing, Pr. Dimitrov will give a talk about Polyphenols from Berry By-Products, On June 3.

"Among all common fruits and vegetables, berries, especially those with dark blue or red colors, have the highest antioxidants capacities.

After Juice extraction, many phenolic compounds and especially antocyanins, are still present in the solid wastes abd could be valorized by suitable extraction process. In this talk a review of berries wastes and antioxidant phenolics in such by-products, classical and alternative extraction techniques for their recovery and techniques for the enrichement of the obtained extracts, their drying and encapsulation, as well as some potential uses of these extracts as natural ingredients (antioxidants, colorants, etc.) in food, cosmetic and pharmaceutical industries will be presented".

 

To know more about Malta Polyphenols World Congress 2015, please click here.



During Malta Polyphenols World Congress 2015, Dr Buchweitz will talk about Stabilisation of anthocyanins and anthocyanin–metal chelates with pectins for their application as red and blue food colourants

Dr Buchweitz

Dr. Buchweitz will give a talk during Polyphenols World Congres 2015 held in Malta on June 3-5, about the stabilisation of metal chelats with pectins for use as food dyes.

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During the Symposium of Malta Polyphenols World Congress 2015, Mrs Gras will give a talk about separation for analysis of Anthocyanins by two different methods from different black carrot

DrGras2Mrs. Gras from the Hohenheim University, will give a talk on June 3 during the symposium on Natural Pigments & Colorants 2015, about Comparison of HPLC and UPLC separation for analysis of anthocyanins from different black carrot varieties (Daucus Carota ssp. Sativus var. Atrorubens Alef).

"Anthocyanins from black carrot (Daucus carota ssp. sativus var. atrorubens Alef.) are natural phenolic pigments widely used for coloring beverages, fruit preparations and confectionary, resulting in a bright red shade at low pH values. They are extraordinarily stable against light and heat exposition due to a high proportion of acylated anthocyanins, which are stabilized via intramolecular co-pigmentation. In the present talk, an ultrasound assisted anthocyanin extraction, their identification and quantitation on a common HPLC-PDA equipped with a C18 core-shell column and modern UPLC-PDA system using a C18 sub-2 µm column were applied and validated. Applying an optimized UPLC separation, differences in the anthocyanin levels in different black carrot varieties will be presented."

 

To know more about Malta Polyphenols World Congress 2015, please click here.

During Malta Polyphenols World Congress 2015, Johanna Brauch will give a talk about chemical composition and color stability of the anthocyanin-rich superfruit

Pr BrauchJohanna Brauch will give a talk during Polyphenols World Congres 2015 held in Malta on June 3-5, about maqui berries - chemical composition and color stability of the anthocyanin-rich superfruit.

"Maqui (Aristotelia chilensins (Mol.) Stuntz) is an evergreen shrub originated from South America that yields small edible purple-black berries. Due to their outstandingly high anthocyanin concentration being correlated with high antioxidant activities, the interest in the berries as a healthy coloring foodstuff or additive has significantly increased. However, the fruits were often presumed to be classified as novel food, even though their consumption in Europe is well documented since the end of the 19th century. According to these reports, berries were consumed fresh, as juice or jams, but mostly applied for coloring wine"

To know more about Malta Polyphenols World Congress 2015: www.polyphenols-site.com