Sökning: "and polyphenols"

Visar resultat 1 - 5 av 26 avhandlingar innehållade orden and polyphenols.

1. 1. Probiotics and berry-associated polyphenols: catabolism and antioxidative effects

   Författare :Maja Jakesevic; Avdelningen för livsmedel och läkemedel; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Bilberry; Rosehips; Chokeberry; Probiotics; Lactic acid bacteria; Polyphenols; Ischemia-reperfusion; Oxidative stress;

   Sammanfattning : Oxidative stress can cause damage to DNA, proteins and lipids and is associated with inflammation and various human diseases as cancer, atherosclerosis, and autoimmune diseases. Polyphenol-rich diet, such as fruits and berries, may act as antioxidants and prevent oxidative stress and, thereby, associated diseases. LÄS MER

3. 2. Polyphenols in Swedish berries and pulses : Characterization and in vivo effects of fractions from lingonberries and brown beans in an Apoe-/- mouse model

   Författare :Jiyun Liu; Cornelia Witthöft; Anne-Maria Pajari; Linnéuniversitetet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; lingonberry; brown bean; flavonoids; phenolic acids; dietary fiber; HPLC-UV MS; atherosclerotic plaque; plasma lipid; gut microbiota; short-chain fatty acids; trimethylamine N-oxide; Apoe- - mice; lingon; bruna bönor; flavonoider; fenolsyror; kostfiber; HPLCUV MS; aterosklerotisk plaketter; plasmalipid; tarm-mikrobiota; kortkedjiga fettsyror; trimetylamin N-oxid; Apoe- - möss; Livsmedelsvetenskap; Food Science;

   Sammanfattning : Consumption of berries and pulses can protect against atherosclerosis and other metabolic diseases, by modulating plasma lipid profile, gut microbiota, and microbiota-dependent metabolites. These nutritional benefits are often attributed to high content of polyphenols (flavonoids and phenolic acids) and dietary fiber. LÄS MER

4. 3. Processing of berries – Effects on functionality, stability and bioactivity of anthocyanins

   Författare :Gabriel Barbosa; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; berries; powder; hot air and microwave drying; osmotic dehydration; press cake; edible coating; anthocyanins; gastrointestinal in vitro digestion; polyphenols; pulsed electric field; oxidative stress; yeast;

   Sammanfattning : Berries are rich natural sources of anthocyanins, water-soluble pigments in plants that have been linked to beneficial effects against chronic diseases, such as cardiovascular diseases, type 2 diabetes and neurodegenerative diseases. However, anthocyanins as well as other polyphenolic compounds are often sensitive to degradation during processing, storage and digestion. LÄS MER

5. 4. Mass Spectrometry of Biologically Active Small Molecules : Focusing on polyphenols, alkaloids and amino acids

   Författare :Zdeněk Spáčil; Leopold L. Ilag; Frantisek Turecek; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LC-MS; LDI; Mass spectrometry; HPLC; UHPLC; polyphenols; phenolic acids; BMAA; Separation methods; Separationsmetoder; Analytical chemistry; Analytisk kemi; Analytical Chemistry; analytisk kemi;

   Sammanfattning : The foci of this dissertation are on advanced liquid chromatography (LC) separation and mass spectrometry (MS) techniques for the analysis of small bioactive molecules. In addition to discussing general aspects of such techniques the results from analyses of polyphenols (PPs), alkaloids and amino acids published in five appended studies are presented and discussed. LÄS MER

7. 5. Antioxidants in Andean food and meals

   Författare :Leslie Tejeda; Livsmedelsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Antioxidant capacity; polyphenolic compounds; anthocyanidins; individual food; meals; ans and stan genes;

   Sammanfattning : Abstract The constant need to improve health and to prevent disease in Bolivia, especially in the Andean region with its extreme environmental conditions (high altitude and lower temperatures), motivated us to extend studies of antioxidant sources in foods and plants, since antioxidants are believed to have major health benefits. Spectrophotometric methods, such as ABTS (2, 2’- azinobis-3-ethylbenzotiazoline-6-sulfonic acid) and FRAP (ferric reduction antioxidant power), were used to evaluate antioxidant activity. LÄS MER