oleuropein hydro ytyrosol lá ô liu

(PDF) Analysis and Evaluation of Hydroxytyrosol in Olive

The developed HPLC method was found linear within the range of 0.82-4.12 mg%, precise with RSD less than 2% and accurate with a range of 97.6-101.2 %. LOQ and LOD of the method were calculated to ...

Antitumor Perspectives of Oleuropein and Its Metabolite …

Oleuropein is the ester of elenolic acid and 3,4-dihydroxyphenyl ethanol (HT). It is the main glycoside in olives, the degradation of which results in the formation …

Frontiers | Assessment of the Antimicrobial Activity of Olive …

Olive leaf extract (OLE) has been used traditionally as a herbal supplement since it contains polyphenolic compounds with beneficial properties ranging from increasing energy levels, lowering blood pressure, and supporting the cardiovascular and immune systems. In addition to the beneficial effects on human health, OLE also has …

Biological Properties of Hydroxytyrosol and Its …

O O Me O O O OH HO HO OH MeO O Hydroxytyrosol Oleuropein Fig. 1. Structures of hydroxytyrosol and oleuropein 2. Biological activity of hydroxytyrosol Historically, olive tree leaves were used for traditional therapy by ancient civilizations. Extracts from olive tree leaves were found to ha ve a positive effect on hypertension by the

(PDF) The Olive Biophenols Oleuropein and Hydroxytyrosol Selectively

treated with oleuropein was almost double that of v ehicle control cells (control = 2.5, oleuropein = 4.3, p = 0.007) (Figure 5C). For hydrox ytyrosol-treated cells the Bax/Bcl-2 ratio was not ...

The Anti-cancer Effect of Olea europaea L. Products: a Review

Oleuropein is a heterosidic ester of elenolic acid and dihydroxyphenylethanol. Hydroxytyrosol (3,4-Dihydroxyphenyl ethanol), is the principal degradation product of oleuropein . Within unprocessed olive fruit and leaves, oleuropein is more abundant, whereas hydroxytyrosol is present in higher amounts of processed olive fruit and leaves . …

Oleuropein Degradation Kinetics in Olive Leaf and Its …

mainly oleuropein. The latter is the most abundant of these compounds and, to a lesser extent, hydroxycinnamic-acid derivatives such as verbascoside; simple phenolic alcohols, such as hydroxytyrosol and tyrosol; and ﬂavonoids, such as apigenin 7-O-glucoside and diosmetin-7-O-glucoside. Oleuropein is the glycoside formed between a …

Dietary polyphenol oleuropein and its metabolite

Oleuropein (OLE) and hydroxytyrosol (HT) are dietary polyphenols with skin beneficial effects but their effects on skin-ageing-related enzymes are not clear. Herein, we …

Effects of the Olive-Derived Polyphenol Oleuropein on …

2.1. Antioxidant Effect. The antioxidant effect of oleuropein is exerted through different mechanisms, resulting in an enhancement of the antioxidant response [2,29].Oleuropein's antioxidant potential is mainly related to its ability to improve radical stability through the formation of an intramolecular hydrogen bond between the free …

Những công dụng tuyệt vời của trái ô liu với sức khỏe

Phần lớn trái ô liu được thu hoạch để làm dầu. Vì vậy, cho dù bạn thích sử dụng ô liu dưới dạng dầu hay ở dạng nguyên trái thì đều có thể mang lại nhiều lợi ích cho sức khỏe. Dưới đây là một số lợi ích từ trái oliu: Chống ung …

Antioxidants | Free Full-Text | High-Yield Production of a …

The aim of the present study was to explore the high-yield production of hydroxytyrosol, a phenolic compound with very high antioxidant capacity. Olea europaea leaves were chosen as feedstock as they contain significant amounts of oleuropein, which can be hydrolyzed to hydroxytyrosol. The chosen techniques are widely used in the …

OLEUROPEIN Tiếng anh là gì

Hiệu quả của chiết xuất lá ôliu phụ thuộc phần lớn vào lượng oleuropein. - The effectiveness of an olive leaf extract depends largely on the quantity of oleuropein. tiếng việt. tiếng anh. Phiên Dịch. Tiếng việt.

Antioxidative activities of Olea europaea leaves and

Olea europaea extracts, oleuropein and hydroxytyrosol were much more effective than BHT or vitamin E in extending the induction period. Assuming a stoichiometric factor f = 2 for BHT, this coefficient of inhibition reached 5 for hydroxytyrosol, 7 for oleuropein and 10 for O. europaea extracts. These extracts owe their antioxidative …

Comparative metabolic profiling of olive leaf extracts from …

Secologanoside, oleuropein, hydroxy-oleuropein, demethyl oleuropein, gallocatechin, luteolin-O-hexoside, diosmetin, oleanolic acid and maslinic acid were detected in all cultivars in both seasons.

Biological effects of olive oil phenolic compounds on …

Oleuropein-Induced autophagy. Oleuropein induces autophagy by activating AMPK (phosphor-AMPK Thr172) and inhibiting mTOR. Administration of oleuropein improves autophagosome formation and lysosome acidification, which promotes decreased generation of reactive oxygen species (ROS) through the clearance of …

Dầu ô liu: Công dụng, Tác dụng phụ, Tương tác

Sự hoạt động của dầu ô liu. Các acid béo trong dầu ô liu dường như làm giảm mức cholesterol và có tác dụng chống viêm. Hơn nữa, lá ô liu và dầu ô liu còn có thể làm giảm huyết áp. Dầu ô liu cũng có thể tiêu diệt vi …

Role of Hydroxytyrosol and Oleuropein in the …

PMID: 37049607 Role of Hydroxytyrosol and Oleuropein in the Prevention of Aging and Related Disorders: Focus on Neurodegeneration, Skeletal Muscle Dysfunction and Gut …

Continuous Bioconversion of Oleuropein from Olive Leaf

It has been reported that chemical (Rigane et al. 2012), chemo-enzymatic, or enzymatic treatment with hydrolytic enzymes such as cellulase and β-glucosidase (Nikolaivits et al. 2017; Liu et al ...

Hydroxytyrosol: A comprehensive approach to …

Oct 2019 Egeria Scoditti Sara Carpi Marika Massaro

(PDF) Oleuropein in Olive and its Pharmacological Effects

the neuroprotective role of oleuropein is shown in Figure 5. 5.10 Other activity. Further pharmacological activity of oleuropein includes diverse healing properties due to. its vasodilatory [89 ...

Efficacy and Mechanisms of Oleuropein in Postmenopausal …

Oleuropein is a phenolic compound extracted from natural olive oil, which belongs to iridoids. Currently, there are few studies on the use of oleuropein to prevent postmenopausal osteoporosis. Our experiment results on animals suggested that oleuropein could significantly avoid BMD descent of ovariectomized SD rats.

Oleuropein Degradation Kinetics in Olive Leaf and Its

Oleuropein, hydroxytyrosol and other olive leaf bioactive compounds are soluble in water, which gives oil mills great potential to obtain aqueous extracts rich in bioactive com- pounds and ...

(PDF) Oleuropein-Enriched Olive Leaf Extract Affects

Time course of C a 2 + i level in mesothelioma REN cells loaded with fura-2 and alternatively exposed to the oleuropein-enriched fraction from olive leaf extract (a, b), to standard oleuropein (c ...

(PDF) Oleuropein and related compounds

Osmanthus O asiaticus Secologanoside 7-methyl ester, 8-epikingiside, oleuropein, 10-hydroxyoleuropein, 10-acetoxyoleuropein, ligustroside, 10-hydroxyligustroside, 10-acetoligustroside, oleoside ...

chiết xuất ô liu hydroxytyrosol oleuropein Đa năng để sử …

Mua chất lượng chiết xuất ô liu hydroxytyrosol oleuropein từ Alibaba và chế biến nhiều loại thực phẩm lành mạnh và các loại thuốc hữu ích. Mua nhiều chiết xuất ô liu hydroxytyrosol oleuropein với số lượng tiết kiệm.

Hydroxytyrosol and Oleuropein-Enriched Extracts …

Keywords: Olea europaea L.; hydroxytyrosol; oleuropein; agro-industrial wastes and by-products; hydroxytyrosol-enriched extract; oleuropein-enriched extract; poly (vinyl alcohol); active packaging; antioxidant activity; green chemistry; circular economy 1. Introduction In the last few years, there has been an increasing demand for antioxidant ...

Oleuropein Degradation Kinetics in Olive Leaf and Its

Linear dependence of natural logarithm of the rate constant (ln k, s −1 ) with respect to the inverse of the temperature (1/T, K) of oleuropein content from aqueous extracts stored between ...

Technological Potential of Lactobacillus Strains Isolated from

Oleuropein and hydro x ytyrosol have been determined. in the MRS-OL sam ples at the end of the incu bation. ... Spanish table olive var ieties," J o u r n a lo fA g r i c u l t u r a la n dF o o d.

Oleuropein: Methods for extraction, purifying and applying

The enzyme involved in this reaction is β-glucosidase that rapidly acts during the crushing and malaxation steps of the olive oil extraction process to modulate the phenolic profile of olive oil, and also contributes to the degradation of oleuropein at the beginning of the brining stage of natural table olives (Ramírez et al., 2016 Ramírez E, Brenes M, García …

Những công dụng tuyệt vời của trái ô liu với sức khỏe

Chiết xuất lá ô liu chứa oleuropein và hydroxytyrosol, có đặc tính kháng virus, kháng khuẩn, chống viêm và chống oxy hóa. Nghiên cứu trên các vận động viên cho thấy các hợp chất này không làm giảm tần suất mắc bệnh đường hô hấp trên nhưng giúp rút ngắn thời gian mắc bệnh ...

Antitumor Perspectives of Oleuropein and Its …

The concentration of oleuropein is mainly dependent upon the several factors such as cultivar, climate, the ripening stage, the oil production and extraction methods. In extra olive oil, the concentration of oleuropein and oleuropein aglycones has been reported as 2.04 ± 0.78 and 14.42 ± 3.01 mg/kg (Abaza & Taamali, 2005; Ryan et al ...

Human absorption and metabolism of oleuropein and hydroxytyrosol

To quantify the bioavailability and metabolism of oleuropein and hydroxytyrosol when taken as OLE, nine volunteers (five males) aged 42.8 ± 7.4 years were randomized to receive either capsulated ...

On the In‐vitro Antimicrobial Activity of Oleuropein and …

Furthermore oleuropein also inhibited (although to a much lesser extent) the growth of several bacterial strains (MIC values between 62.5 and 500 μg mL −1 for ATCC strains and between 31.25 and 250 μg mL −1 for clinical isolates); oleuropein was ineffective against Haemophilus influenzae and Moraxella catarrhalis.

Oleuropein Reverses Repeated Corticosterone-Induced Depressive-Like

Oleuropein is about 50–60% absorbed in humans, and it was shown that the hydroxytyrosol; an active metabolite of oleuropein; is found in the brain of mice following oleuropein oral administration.

Olive Leaf ( Olea europaea L. folium ): Potential Effects on …

Oleuropein content (6–14%) is very high in dry matter of olive leaves . Oleuropein amount in olive leaves may vary depending on harvest season and rise up to 17–23% . However, this complex phenol is found less in olive oil types except extra olive oil, while it is highly available in olive trees and leaves .

Metabolites Involved in Oleuropein Accumulation and Degradation in

The biosynthetic pathway of oleuropein (from 7-ketologanin, oleoside-11-methyl ester, 7-β-1-d-glucopyranosyl-11-methyl oleoside, and ligstroside to oleuropein) was investigated in two fruit ...

(PDF) Olive (Olea europaea L.)—Morphology, …

PDF | On Jun 16, 2021, Syed Zameer Hussain and others published Olive (Olea europaea L.)—Morphology, Taxonomy, Composition and Health Benefits | Find, read and cite all the research you need on ...