Linked Life Data

10725170

Source:http://linkedlifedata.com/resource/pubmed/id/10725170

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2000-6-15
pubmed:abstractText
Cranberry pomace contains large amounts of phenolic glycosides, which are important sources of free phenolics that have many food uses such as antioxidants, flavorings, and nutraceuticals. Our hypothesis was that these glycosides in cranberry pomace could be hydrolyzed by beta-glucosidase produced by Lentinus edodes during solid-state fermentation. On the basis of this hypothesis, our objective was to investigate the potential of using cranberry pomace as a substrate for the production of free phenolics and beta-glucosidase through solid-state fermentation by a food-grade fungus L. edodes. Our results suggested that L. edodes beta-glucosidase played a major role in release of phenolic aglycons from cranberry pomace during solid-state fermentation. After 50 days of cultivation, the yield of total free phenolics reached the maximum of 0.5 mg per g of pomace, while the beta-glucosidase activity was about 9 units per g of pomace. The enzyme exhibited optimal activity at 60 degrees C and at pH 3.5 and was stable at temperatures up to 50 degrees C and between pH 3 and 6.5. The major free phenolics produced from cranberry pomace were identified by HPLC as gallic acid, chlorogenic acid, p-hydroxybenzoic acid, and p-coumaric acid. These results suggest that cranberry pomace is a potential substrate for producing food-grade phenolics and fungal beta-glucosidase. The L. edodes beta-glucosidase showed good stability and tolerance to low pH and, therefore has potential applications in wine and juice processing for aroma and flavor enrichment through enzymatic hydrolysis of glucoside precursors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0021-8561
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
895-900
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Solid-state bioconversion of phenolics from cranberry pomace and role of Lentinus edodes beta-glucosidase.
pubmed:affiliation
Department of Food Science, University of Massachusetts, Amherst, Massachusetts 01003, USA.
pubmed:publicationType
Journal Article