Distribution of Ellagitannins in Juice, Flesh, and Achenes as Additional Criterion for Optimal Utilization of Strawberries

Klimczak, Elżbieta; Rozpara, E.; Krol, B.

doi:10.15193/zntj/2011/79/142-154

Cited by 9 publications

(19 citation statements)

References 18 publications

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“…The highest content of ellagitannins (4020 mg/100 g) was also noted in the seedless pomace preparation (W) ( Table 1). Klimczak et al [2011] demonstrated that most of the phenolics accumulate in the seedless fraction of the pomace; consequently, an increased concentration of these bioactive compounds was observed after the removal of seeds from the raspberry pulp.…”

Section: Resultsmentioning

confidence: 99%

Synergistic Antimicrobial Effect of Raspberry (Rubus idaeus L., Rosaceae) Preparations and Probiotic Bacteria on Enteric Pathogens

Bauza-Kaszewska

Żary-Sikorska

Gugołek

et al. 2021

Pol. J. Food Nutr. Sci.

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Due to the increasing microbial tolerance to commonly used food preservatives, as well as growing consumer awareness of their adverse impact on human health, alternative methods of pathogens reduction in food are widely investigated. The aim of this research was to examine the antimicrobial activity of red raspberry pomace and seed preparations against enterohemorrhagic Escherichia coli (EHEC), Salmonella Typhimurium, Salmonella Enteritidis, Listeria monocytogenes, and probiotic Lactobacillus rhamnosus strain. The combined action of LAB (lactic acid bacteria) and raspberry preparations on the pathogenic species was also evaluated. The results of our study showed no or weak antibacterial effect of raspberry preparations on the pathogenic bacteria tested. Regardless of preparation concentration (1.0 or 2.0 mg/mL), the bacteria number after 48-h incubation was usually higher than in the culture at the initial stage and varied from 10 5 to 10 7 cfu/mL. On the other hand, probiotic Lactobacillus rhamnosus strain caused a significant reduction in the enteric pathogen count after 24-h co-culture with LAB. The concentrations of both Salmonella serotypes were below the detection limit of the analytical methods applied. Moreover, the combined use of LAB and raspberry preparations resulted in the total elimination of Salmonella strains and the reduction in L. monocytogenes number from 10 5 to 10 2-10 4 cfu/mL after 24-h co-culture. EHEC revealed the highest resistance to the mixed culture effect. The synergic antimicrobial effect suggests the possibility of applying probiotic bacteria and berry preparations as natural antimicrobial agents in the food industry.

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Section: Resultsmentioning

confidence: 99%

Synergistic Antimicrobial Effect of Raspberry (Rubus idaeus L., Rosaceae) Preparations and Probiotic Bacteria on Enteric Pathogens

Bauza-Kaszewska

Żary-Sikorska

Gugołek

et al. 2021

Pol. J. Food Nutr. Sci.

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“…Differences in the chemical composition of the examined raspberry pomaces were also caused by the level of grinding and the presence of seeds in the pomace. Most of the polyphenols accumulate in the seedless fraction of the pomace [37]; consequently, an increased concentration of these bioactive compounds was observed after the removal of seeds from the raspberry pulp. Additionally, the disruption of complexes between fibers and polyphenols by fine grinding increased the concentration of these bioactive compounds.…”

Section: Discussionmentioning

confidence: 99%

Raspberry pomace alters cecal microbial activity and reduces secondary bile acids in rats fed a high-fat diet

Fotschki

Juśkiewicz

Jurgoński

et al. 2017

The Journal of Nutritional Biochemistry

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ReuseUnless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. ÔØ Å ÒÙ×Ö ÔØRaspberry pomace alters cecal microbial activity and reduces secondary bile acids in rats fed a high-fat diet This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT Raspberry pomace alters cecal microbial activity and reduces secondary bile acids in rats fed a high-fat diet A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT ABSTRACTThe profile of bile acids (BA) largely depends on the enzymatic activity of the microbiota, but this can be modulated by the dietary addition of biologically active compounds, e.g., polyphenols and polyunsaturated fatty acids. The aim of this study was to examine the effect of dietary raspberry pomace as a rich source of biologically active compounds on microbial activity and the BA profile in the caecum of rats fed a high-fat diet.Wistar rats were fed the standard diet AIN-93, a high-fat diet or a modified high-fat diet enriched with 7% different types of processed raspberry pomaces produced by standard grinding and fine grinding, with or without seeds. Rats fed the high-fat diet for eight weeks showed some disorders in liver function and cecal BA, as manifested by an increased concentration of cholesterol, total BA in the liver and cholic, deoxycholic, and -muricholic acids in the cecal digesta. In general, irrespective of the type of raspberry pomace, these dietary preparations decreased liver cholesterol, hepatic fibroblast growth factor receptor 4, peroxisome proliferator-activated receptor alpha, cecal ammonia and favorable changed BA profile in the cecum. However, among all dietary pomaces, the finely ground preparation containing seeds had the greatest beneficial effect on the caecum by modulating bacterial activity and reducing the levels of secondary BA.

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“…The total content of ET, expressed per monomer of α-1--O-galloylo-2,3:4,6-bis-HHDP-D-glucose, was computed by multiplying content of released EA by conversion factor of 1.55. This factor takes account of the molar content of el-lagic acid in α-1-O-galloylo-2,3:4,6-bis-HHDP-D-glucose which is a monomeric unit of agrimonine [Klimczak et al, 2011]. The above analytical procedure was repeated twice for each analysed sample of the material.…”

Section: Determination Of Polyphenols Content Including Ellagitanninmentioning

confidence: 99%

Physiological Properties of Dietary Ellagitannin-Rich Preparations Obtained from Strawberry Pomace Using Different Extraction Methods

Juśkiewicz¹,

Król²,

Kosmala³

et al. 2015

Pol. J. Food Nutr. Sci.

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Distribution of Ellagitannins in Juice, Flesh, and Achenes as Additional Criterion for Optimal Utilization of Strawberries

Cited by 9 publications

References 18 publications

Synergistic Antimicrobial Effect of Raspberry (Rubus idaeus L., Rosaceae) Preparations and Probiotic Bacteria on Enteric Pathogens

Synergistic Antimicrobial Effect of Raspberry (Rubus idaeus L., Rosaceae) Preparations and Probiotic Bacteria on Enteric Pathogens

Raspberry pomace alters cecal microbial activity and reduces secondary bile acids in rats fed a high-fat diet

Physiological Properties of Dietary Ellagitannin-Rich Preparations Obtained from Strawberry Pomace Using Different Extraction Methods

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