Characterization of cyclic olefin copolymer-coated chitosan bilayer films containing nanocellulose and grape seed extract

2018 ◽  
Vol 31 (7) ◽  
pp. 499-508 ◽  
Author(s):  
Ece Söğüt ◽  
Atif Can Seydim
Keyword(s):  
Grape Seed Extract ◽  
Grape Seed ◽  
Seed Extract ◽  
Cyclic Olefin Copolymer ◽  
Cyclic Olefin ◽  
Bilayer Films

Characterization of antioxidant chitosan film incorporated with Zataria multiflora Boiss essential oil and grape seed extract

LWT ◽  
2012 ◽  
Vol 46 (2) ◽  
pp. 477-484 ◽  
Author(s):  
Mehran Moradi ◽  
Hossein Tajik ◽  
Seyed Mehdi Razavi Rohani ◽  
Abdul Rasoul Oromiehie ◽  
Hassan Malekinejad ◽  
...  
Keyword(s):  
Essential Oil ◽  
Chitosan Film ◽  
Grape Seed Extract ◽  
Grape Seed ◽  
Seed Extract ◽  
Zataria Multiflora

scholarly journals Preparation and characterization of a chitosan film with grape seed extract-carvacrol microcapsules and its effect on the shelf-life of refrigerated Salmon (Salmo salar)

LWT ◽  
2018 ◽  
Vol 89 ◽  
pp. 525-534 ◽  
Author(s):  
Vera L.C.D. Alves ◽  
Bruna P.M. Rico ◽  
Rui M.S. Cruz ◽  
António A. Vicente ◽  
Igor Khmelinskii ◽  
...  
Keyword(s):  
Shelf Life ◽  
Salmo Salar ◽  
Chitosan Film ◽  
Grape Seed Extract ◽  
Grape Seed ◽  
Seed Extract

Ovariectomy lowers urine levels of unconjugated (+)-catechin, (–)-epicatechin, and their methylated metabolites in rats fed grape seed extract

2013 ◽  
Vol 16 (3) ◽  
Author(s):  
John K. Cutts ◽  
Thomas R. Peavy ◽  
Doyle R. Moore ◽  
Jeevan Prasain ◽  
Stephen Barnes ◽  
...  
Keyword(s):  
Dietary Supplements ◽  
Steroid Hormones ◽  
Grape Seed Extract ◽  
Grape Seed ◽  
Seed Extract ◽  
Spontaneously Hypertensive ◽  
Age Related ◽  
Grape Seed Polyphenols ◽  
Surgically Induced

AbstractSteroid hormones modulate expression of enzymes that metabolize xenobiotics, including dietary supplements. Half of the human population undergoes menopause, yet the effect of this age-related loss of ovarian steroid hormones on the metabolism of dietary supplements has yet to be determined. Grape seed extract (GSE) is a dietary supplement comprised of monomeric and oligomeric catechins and has health benefits in models of age-related diseases. We hypothesized that surgically-induced loss of ovarian hormones would increase methylation, glucuronidation, and/or sulfation of the grape seed polyphenols (+)-catechin and (–)-epicatechin. Fourteen-week-old spontaneously hypertensive rats (SHRs) were ovariectomized (OVX) or sham-OVX. At 17 weeks of age, SHRs were gavaged with vehicle (water) or GSE (300 mg/kg body weight) once daily for 6 days. Urinary excretion of (+)-catechin, (–)-epicatechin, and their metabolites was analyzed by liquid chromatography-mass spectrometry. Although total urinary output of (+)-catechin, (–)-epicatechin, and their methylated metabolites was unaffected by OVX, the amounts of (+)-catechin, (–)-epicatechin and their methylated metabolites that were not conjugated with glucuronic acid or sulfate were lowered by OVX. Specifically, urine from OVX SHRs administered GSE contained 30% higher proportions (91.8% vs. 62.3%) of glucuronidated (+)-catechin and (–)-epicatechin and glucuronidated methyl (+)-catechin and methyl (–)-epicatechin than urine from sham-OVX SHRs. However, there were no differences in urinary levels of total methylated or sulfated catechins in OVX SHRs. This is the first quantitative characterization of metabolites of grape seed polyphenols in a model of menopause; it indicates that ovariectomy causes either an increase in expression and/or activity of select uridine 5′-diphospho-glucuronosyltransferase(s).

Preparation and characterization of green graphene using grape seed extract for bioapplications

2016 ◽  
Vol 65 ◽  
pp. 345-353 ◽  
Author(s):  
Srinivasarao Yaragalla ◽  
Rajakumari Rajendran ◽  
Jiya Jose ◽  
Mariam A. AlMaadeed ◽  
Nandakumar Kalarikkal ◽  
...  
Keyword(s):  
Grape Seed Extract ◽  
Grape Seed ◽  
Seed Extract
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