We used the antioxidant composition of ascorbic acid, rutin, and lecithin. We examined the effect of the composition on qualitative characteristics of plum fruit during storage. The retardation of ...maturation and aging of plum fruit during the storage under the influence of the antioxidant composition was revealed. The use of such a composition preserves the fruit weight, induces their natural immune system and increases the stability of the fruits to the microorganisms. The storage period of plum fruits increased by 10-40 days at the output of standard products in the range of 93.5-96.4%.
Milk from goats fed borage or hawthorn shows the presence of flavonoids and terpenoids. A comparison between the flavonoid content in plants and goat milk seems to prove that the mammary route is one ...of the excretory pathways. Rutin and quercetin are excreted in part without modifications, while other compounds appear to have less structural complexity, indicating a metabolism that is probably mediated by the gastrointestinal microflora. The presence of phenolic compounds in milk could affect the quality and sensory traits of milk and milk products
Il latte di capre alimentate con borragine o biancospino rivela la presenza di flavonoidi e terpenoidi provenienti dalla dieta. Il confronto fra il contenuto flavonoidico delle piante e del latte degli animali studiati sembra provare che l'escrezione mammaria sia una delle vie metaboliche possibili per i composti flavonoidici. La rutina e la quercetina sono parzialmente escrete senza modificazioni, mentre altri composti presenti nel latte presentano minore complessità strutturale rispetto ai metabolici presenti nelle piante, a riprova di una probabile mediazione metabolica da parte delle microflora gastrointestinale. La presenza di composti fenolici nel latte può essere importante in relazione alla qualità sensoriale del latte e dei suoi derivati
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, UILJ, UKNU, UL, UM, UPUK
43.
Compositions of polyphenols in wild chive, meadow salsify, garden sorrel and ag yoncha and their anti-proliferative effect Moravcikova, D., Univerzita Tomase Bati, Zlin (Czech Republic). Institut Zdravotnickych Studii; Kucekova, Z., Univerzita Tomase Bati, Zlin (Czech Republic). Centrum Polymernich Systemu; Mlcek, J., Univerzita Tomase Bati, Zlin (Czech Republic). Ustav Technologie a Mikrobiologie Potravin ...
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis,
2012, Letnik:
60, Številka:
3
Journal Article
Recenzirano
Odprti dostop
The aim of our study was to investigate the concentration of polyphenols in edible flowers of Allium schoenoprasum, Rumex acetosa, Trapogon pratensis and Trifolium repens, and their effect on ...proliferation activity of human hepatocellular carcinoma cells. The anti-proliferative effect was evaluated in vitro using the following concentrations of polyphenols: 100, 75, 50 and 25 microg/mL. Phenolic composition was determined by HPLC. Our results indicate that even low concentrations of polyphenols significantly inhibited cell proliferation. This effect was observed with all studied extracts and was independent on the composition of individual polyphenols.
Comparison of the Chemical Components of Buckwheat Seed and Sprout Kim, Y.S. (Sejong University, Seoul, Republic of Korea); Kim, J.G. (Sejong University, Seoul, Republic of Korea); Lee, Y.S. (Hallym University, Chuncheon, Republic of Korea) ...
Han'guk Sikp'um Yŏngyang Kwahakhoe chi,
(Jan 2005), Letnik:
34, Številka:
1
Journal Article
Recenzirano
The chemical components of buckwheat seed and sprout were compared for predicting the usefulness of buckwheat sprout as food materials. The buckwheat sprout was harvested and lyophilized after ...germination for 7 days. Crude protein, lipid and ash contents of buckwheat sprout were 20.8, 1.3 and 2.6% in dry basis, respectively. Major amino acids of buckwheat sprout were glutamic acid (2,764 mg/100 g) and aspartic acid (1,698 mg/100 g). The contents of tryptophan, alanine, tyrosine and histidine of buckwheat sprout were about 1.7 to 1.9 times higher than those of buckwheat seed.
The influence of pH and structure and concentration of copigment and pigment on the copigmentation reaction of anthocyanin-colorless phenolic compounds has been investigated. It has been found that ...the copigmentation effect displayed by chlorogenic acid, caffeic acid, and rutin was greater for the acylated pelargonidin, monardaein, than for the corresponding pelargonidin 3-glucoside, and malvin solutions exhibited the greatest copigmentation effects. The pH of maximum copigmentation effect was 3.2-3.7 for chlorogenic acid and 3.5-4.7 for caffeic acid and rutin. The equilibrium and stoichiometric constants for eight pigment-copigment combinations were determined and used to quantitate the association between pigments and copigments. The magnitude of the copigmentation effect is interpreted in terms of the acidity constant of the copigment and the hydration constant of the pigment
The reaction of malvin chloride (malvidin 3,5-diglucoside) with a flavonoid compound rutin (quercetin 3-rutinoside) is investigated. Reactions of these molecules are observed through UV−vis ...absorption spectra, to identify the factors that influence the copigmentation as well as the characteristics of the copigment formed. It is established that the copigmentation process takes place in buffer solutions at a specific pH value and that it is conditioned by the mole ratio and temperature. Copigment formation is defined by kinetic and thermodynamic parameters. Keywords: Copigmentation; anthocyans; rutin; UV−vis spectra
Rutin, Catechin Derivatives, and Chemical Components of Tartary Buckwheat (Fagopyrum tataricum Gaertn.) Sprouts Lee, H.S. (Korea National Agricultural College, Hwaseong, Republic of Korea); Park, C.H. (Kangwon National University, Chuncheon, Republic of Korea); Park, B.J. (SVBL, National University Cooperation Kitami Institute of Technology, Hokkaido, Japan) ...
Korean journal of crop science,
12/2006, Letnik:
51, Številka:
8
Journal Article
Recenzirano
The aim of this study was to develop the tartary buckwheat (Fagopyrum tataricum Gaertn.) sprouts and to clarify the biological and chemical characteristics of the sprouts. At 7 days after seeding, ...hypocotyls length and thickness, and root length of tartary buckwheat sprouts were 13.7 cm, 1.4 mm, and 12.6 cm, respectively. Fresh weight, dry weight, and moisture contents of an individual sprout at 7 days after seeding were 202 mg, 5.4 mg, and 95.3%, respectively. Protein content in tartary buckwheat sprouts was 23.0% which relatively higher than that of seeds, while lipid and ash contents were 3.5% and 5.3%.
The effects of salicylic acid on pigment contents in ultraviolet radiation stressed pepper plant Mahdavian, K.,Payam Noor Univ. of Sirjan (Iran Islamic Republic). Biology Dept; Kalantari, K.M.,Shahid Bahonar Univ. of Kerman (Iran Islamic Republic). Biology Dept; Ghorbanli, M.,Azad Islamic Univ. of Gorgan (Iran Islamic Republic) ...
Biologia plantarum,
(Jan 2008), Letnik:
52, Številka:
1
Journal Article
Recenzirano
Pepper plants were sprayed with salicylic acid (SA) and treated with ultraviolet radiation UV-A (320-390 nm), UV-B (312 nm), and UV-C (254 nm) of 6.1, 5.8, and 5.7 W/square m, respectively. UV ...significantly reduced contents of chlorophyll (Chl) a and b, and carotenoids (Car). SA treatment moderated Chl and Car reduction in plants treated with UV-B and UV-C. The quantity of antocyanins, flavonoids, rutin, and UV-absorbing compounds in plants that were treated with UV-B, UV-C, and SA were significantly increased. Foliar spray of SA counteracted the UV effects on pepper.
Dietary flavonol quercetin induces chloride secretion in rat colon Cermak, R. (University of Zurich, Zurich, Switzerland.); Follmer, U; Wolffram, S
American journal of physiology: Gastrointestinal and liver physiology,
11/1998, Letnik:
275, Številka:
5
Journal Article
Recenzirano
The aim of this study was to investigate the possible effects of the flavonol quercetin, the most abundant dietary flavonoid, on the intestinal mucosa. In vitro experiments were performed with ...various segments of the rat intestine, using the Ussing chamber technique. Quercetin increased the short-circuit current ( I
) in the jejunum, ileum, and proximal and distal colon. Additional experiments were performed using preparations of the proximal colon. The maximum effective dose of quercetin was found to be ∼100 μM. The quercetin-induced increase in I
was inhibited by the Cl
channel blocker 5-nitro-2-(3-phenylpropylamino)-benzoic acid. Adding blockers of the Na
-K
-2Cl
cotransporter to the serosal compartment diminished the increase of I
due to quercetin. Ion substitution and flux measurements indicated that the effect of quercetin was due to electrogenic Cl
andFormula: see text secretion. In contrast to the aglycone, the quercetin glycoside rutin had no effect. The effect of quercetin on I
was additive to the I
increase induced by forskolin, but the flavonoid diminished the I
evoked by carbachol. The phosphodiesterase inhibitor theophylline blocked the effect of quercetin. Genistein, a related isoflavone, did not alter the I
evoked by quercetin. These findings demonstrate that the dietary flavonol quercetin induces Cl
secretion and most likely Formula: see textsecretion in rat small and large intestine. The effects are restricted to the flavonol aglycone.
Experiments were conducted to determine if three plant defenses affected the parasitoid Cotesia congregata in a fashion that would influence herbivore-parasitoid interactions. We evaluated the ...developmental rate, size, and survival of the parasitoid Cotesia congregata, when reared from Manduca sexta fed on diets containing either nicotine, rutin, or hordenine. These results were compared to the effects of the same three chemicals on unparasitized M. sexta. The influences of the three plant defenses differed. In general, however, the effects of these allelochemicals on the parasitoid paralleled those on the unparasitized hornworn. The one major exception was that concentrations of nicotine that had little or no effect on the hornworm caused significant mortality of parasitoids. Neither rutin nor hordenine had large or consistent negative effects, although rutin had a pronounced effect on both hornworm and parasitoid developmental times.
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