Antioxidant Properties of Mediterranean Spices Compared with Common Food Additives

2001 ◽  
Vol 64 (9) ◽  
pp. 1412-1419 ◽  
Author(s):  
MAGDALENA MARTÍNEZ-TOMÉ ◽  
ANTONIA M. JIMÉNEZ ◽  
SILVERIO RUGGIERI ◽  
NATALE FREGA ◽  
ROSANNA STRABBIOLI ◽  
...  

In this study, the antioxidant properties of Mediterranean food spices (annatto, cumin, oregano, sweet and hot paprika, rosemary, and saffron) at 5% concentration and of common food additives (butylated hydroxyanisole [BHA], butylated hydroxytoluene[BHT], and propyl gallate) at 100 μg/g are compared. The ability of these compounds to inhibit lipid peroxidation was, in decreasing order, rosemary > oregano > propyl gallate > annatto > BHA > sweet paprika > cumin > hot paprika > saffron > BHT. Deoxyribose damage is partially inhibited in the presence of cumin extract that exhibits the strongest protective action. The rest of the spices also protect deoxyribose better than the BHA and BHT used in the assay. Finally, the results obtained in the assay point to the prooxidant effect of propyl gallate. Hydrogen peroxide scavenging activity is measured by using peroxidase-based assay systems. In aqueous medium, the spice extracts show lower antioxidant activity than propyl gallate, the decreasing order being cumin > oregano > annatto > rosemary > hot paprika > sweet paprika. BHA and BHT did not scavenge H2O2. Spices are able to scavenge HOCl and protect α1-antiproteinase. The results indicate that rosemary and oregano are more effective HOCl scavengers than the other substances analyzed, which, in decreasing order, were propyl gallate, annatto, sweet and hot paprika, saffron, and cumin. The effect of Mediterranean food spices on the oxidative stability of refined olive oil tested by the Rancimat method was compared with common food additives during storage (72 h, 2, 4, and 6 months) at room temperature. The results showed that the spice extracts analyzed have significant stabilizing effects (P < 0.05).

2001 ◽  
Vol 64 (12) ◽  
pp. 2037-2046 ◽  
Author(s):  
M. ANTONIA MURCIA ◽  
ANTONIA M. JIMÉNEZ ◽  
MAGDALENA MARTÍNEZ-TOMÉ

Several Mediterranean and tropical fruits have been analyzed in order to assess their antioxidant activity compared with that of common food additives (butylated hydroxyanisole [BHA], butylated hydroxytoluene [BHT] and propyl gallate). Among Mediterranean fruits, red grape and plum were more effective (P < 0.05) scavengers of peroxyl radicals than BHA, BHT, and propyl gallate. Of the tropical fruits, banana was the most effective scavenger of peroxyl radicals. Mediterranean and tropical fruits showed very good scavenger activity against hydroxy radicals (OH), protecting deoxyribose better than BHA and BHT. The HOCl scavenging ability of Mediterranean fruits tested was, in decreasing order, lemon > plum > apricot > white grape > melon > red grape > mandarin > watermelon > peach > medlar > apple > orange > cherry > strawberry. However, the four varieties of pear were poor scavengers (P < 0.05). Among tropical fruits, the order of efficiency as HOCl scavengers was passion fruit > lime > passiflora > kumquat > avocado > pineapple > physalis > papaya fruit > carambola > mango > banana. All Mediterranean fruits showed an effect on hydrogen peroxide except peach. Tropical fruits also had a strong effect on hydrogen peroxide except avocado, which had no effect. The effect of Mediterranean and tropical fruits on the protection factor of refined olive oil, analyzed by the Rancimat method and compared with common food additives, was clear. Watermelon conferred a significantly (P < 0.05) greater protection than the other Mediterranean fruits. Among tropical fruits, physalis had the most stabilizing effect.


2001 ◽  
Vol 64 (3) ◽  
pp. 379-384 ◽  
Author(s):  
M. ANTONIA MURCIA ◽  
MAGDALENA MARTÍNEZ-TOMÉ

Resveratrol is a phenolic compound of the stilbene family present in wines and various parts of the grape, including the skin. In this study, the antioxidant and prooxidant activities of resveratrol were compared with other antioxidants (butylated hydroxytoluene [BHT], butylated hydroxyacetone [BHA], phenol, propyl gallate [PG], sodium tripolyphosphate [TPP], α-tocopherol, and vanillin) widely used in foods. The ability of these compounds to inhibit lipid peroxidation was as follows: BHA > resveratrol > PG > tripolyphosphate > vanillin > phenol > BHT > α-tocopherol, the first three inhibiting the peroxidation in a concentration-dependent manner. The order of OH scavenger activity of the tested compounds was BHA > TPP > BHT. Resveratrol and vanillin produced between 10 to 7% and 16 to 10% inhibition of the deoxyribose attack, respectively, but they do not scavenge OH▪. Neither the resveratrol analyzed nor PG or the rest of compounds reacted with H2O2 and must be considered inefficient in catalyzing any subsequent oxidation. The ability to scavenge HOCl was, in decreasing order, PG > resveratrol > α-tocopherol > phenol. The other compounds did not scavenge HOCl.


Membranes ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 327
Author(s):  
Michał J. Sabat ◽  
Anna M. Wiśniewska-Becker ◽  
Michał Markiewicz ◽  
Katarzyna M. Marzec ◽  
Jakub Dybas ◽  
...  

Tauroursodeoxycholic acid (TUDCA), a hydrophilic bile acid containing taurine conjugated with the ursodeoxycholic acid (UDCA), has been known and used from ancient times as a therapeutic compound in traditional Chinese medicine. TUDCA has recently been gaining significant interest as a neuroprotective agent, also exploited in the visual disorders. Among several mechanisms of TUDCA’s protective action, its antioxidant activity and stabilizing effect on mitochondrial and plasma membranes are considered. In this work we investigated antioxidant activity of TUDCA and its impact on structural properties of model membranes of different composition using electron paramagnetic resonance spectroscopy and the spin labeling technique. Localization of TUDCA molecules in a pure POPC bilayer has been studied using a molecular dynamics simulation (MD). The obtained results indicate that TUDCA is not an efficient singlet oxygen (1O2 (1Δg)) quencher, and the determined rate constant of its interaction with 1O2 (1Δg) is only 1.9 × 105 M−1s−1. However, in lipid oxidation process induced by a Fenton reaction, TUDCA reveals substantial antioxidant activity significantly decreasing the rate of oxygen consumption in the system studied. In addition, TUDCA induces slight, but noticeable changes in the polarity and fluidity of the investigated model membranes. The results of performed MD simulation correspond very well with the experimental results.


Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2647
Author(s):  
Sabrina Groth ◽  
Christoph Budke ◽  
Timo Weber ◽  
Susanne Neugart ◽  
Sven Brockmann ◽  
...  

Notable parts of the population in Europe suffer from allergies towards apples. To address this health problem, the analysis of the interactions of relevant allergens with other substances such as phenolic compounds is of particular importance. The aim of this study was to evaluate the correlations between the total phenolic content (TPC), polyphenol oxidase (PPO) activity, antioxidant activity (AOA), and the phenolic compound profile and the content of the allergenic protein Mal d 1 in six apple cultivars. It was found that the PPO activity and the content of individual phenolic compounds had an influence on the Mal d 1 content. With regard to the important constituents, flavan-3-ols and phenolic acids, it was found that apples with a higher content of chlorogenic acid and a low content of procyanidin trimers and/or epicatechin had a lower allergenic potential. This is probably based on the reaction of phenolic compounds (when oxidized by the endogenous PPO) with proteins, thus being able to change the conformation of the (allergenic) proteins, which further corresponds to a loss of antibody recognition. When apples were additionally biofortified with selenium, the composition of the apples, with regard to TPC, phenolic profile, AOA, and PPO, was significantly affected. Consequently, this innovative agronomic practice seems to be promising for reducing the allergenic potential of apples.


Author(s):  
Н.Н. КОРНЕН ◽  
С.А. КАЛМАНОВИЧ ◽  
Т.А. ШАХРАЙ ◽  
В.И. МАРТОВЩУК ◽  
Е.В. КУЗЬМИНОВА ◽  
...  

Проведена сравнительная оценка эффективности антиоксидантного и гепатопротекторного действия пищевых добавок, полученных из выжимки винограда белых сортов по различным технологиям, в экспериментах на лабораторных животных. Установлено, что пищевая добавка «Порошок виноградный» (ПВ), полученная из выжимки винограда белых сортов по разработанной технологии, позволяет, по сравнению с контрольным образцом пищевой добавки, в большей степени снизить в сыворотке крови содержание продуктов перекисного окисления липидов – малонового диальдегида, диеновых коньюгатов и кетодиенов, что свидетельствует о более высокой эффективности антиоксидантного действия ПВ на организм животных, обусловленной большим содержанием микронутриентов с антиоксидантными свойствами. Добавка ПВ проявляет более высокую эффективность гепатопротекторного действия, заключающуюся в значительном снижении уровня активности аланинаминотрансферазы в сыворотке крови, по сравнению с контрольным образцом добавки. Comparative evaluation of the effectiveness of antioxidant and hepatoprotective action of food additives which obtained from grape pomace white varieties for various technologies, was carried out in experiments on laboratory animals. It is established that the food additive “Grape Powder” (GP), obtained from the pomace of white grape varieties by the developed technology, allows, in comparison with the control sample of the food additive, to reduce the content of lipid peroxidation products in the serum to a greater extent – Malon dialdehyde, diene conjugates and ketodienes, which indicates a higher efficiency of antioxidant action of GP on the organism of animals, due to the high content of micronutrients with antioxidant properties. The additive GP shows a higher efficiency of hepatoprotective action, which consists in a significant reduction in the level of alanine aminotransferase activity in the blood serum, compared to the control sample of the additive.


2001 ◽  
Vol 354 (3) ◽  
pp. 493-500 ◽  
Author(s):  
Jeremy P. E. SPENCER ◽  
Hagen SCHROETER ◽  
Gunter KUHNLE ◽  
S. Kaila S. SRAI ◽  
Rex M. TYRRELL ◽  
...  

There is considerable current interest in the cytoprotective effects of natural antioxidants against oxidative stress. In particular, epicatechin, a major member of the flavanol family of polyphenols with powerful antioxidant properties in vitro, has been investigated to determine its ability to attenuate oxidative-stress-induced cell damage and to understand the mechanism of its protective action. We have induced oxidative stress in cultured human fibroblasts using hydrogen peroxide and examined the cellular responses in the form of mitochondrial function, cell-membrane damage, annexin-V binding and caspase-3 activation. Since one of the major metabolites of epicatechin in vivo is 3′-O-methyl epicatechin, we have compared its protective effects with that of epicatechin. The results provide the first evidence that 3′-O-methyl epicatechin inhibits cell death induced by hydrogen peroxide and that the mechanism involves suppression of caspase-3 activity as a marker for apoptosis. Furthermore, the protection elicited by 3′-O-methyl epicatechin is not significantly different from that of epicatechin, suggesting that hydrogen-donating antioxidant activity is not the primary mechanism of protection.


2021 ◽  
pp. 47-50
Author(s):  
Антонина Григорьевна Чернобровина ◽  
Наталья Николаевна Роева ◽  
Наталия Евгеньевна Куликова ◽  
Ольга Юрьевна Попова

В настоящее время к одним из наиболее приоритетных направлений пищевой промышленности относят разработку функциональных продуктов питания на основе экологически чистого сырья естественного происхождения, в том числе ягодного. При разработке новых продуктов с защитными свойствами важно учитывать ингредиентный состав сырья, оказывающий лечебно-профилактический эффект, и с этой точки зрения ягоды малины и брусники заслуживают особого внимания. С целью максимального извлечения и сохранения природных, физиологически-функциональных компонентов дикорастущих ягод (витаминов, микро- и макроэлементов, фенольных, пектиновых соединений и др.) были разработаны и созданы мультиэнзимные композиции для предобработки ягод брусники (МЭКб) и малины (МЭКм). Большой интерес вызывали исследования состава и содержания красящих веществ в исследуемых образцах. В качестве структурных элементов антоцианов в соке малины и брусники, а также в их ферментативных соках установлены дисахариды, основной структурный компонент которых - цианидин. Количественное содержание антоцианов в соке брусники и малины составило 305,4 и 106,2 мг/дм3, а в ферментативном соке брусники (БФС) и малины (МФС) - 553,7 и 146,4 мг/дм3, соответственно. Высокое содержание красящих веществ - важный критерий для использования БФС и МФС в качестве источника натуральных красителей. Установлена более высокая антиоксидантная активность в БФС и МФС (соответственно в 1,3 и 1,5 раза) по сравнению с соком, полученным без применения ферментных препаратов. Следовательно, ферментативный сок ягод обладает высокими антиоксидантными свойствами и служит источником натуральных красителей, поэтому его можно рассматривать как перспективный сырьевой полуфабрикат при производстве продуктов питания функциональной направленности, оказывающих благотворное регулирующее действие на организм человека. Currently, one of the priority areas of the food industry is the development of functional food products based on environmentally friendly raw materials of natural origin, including berry. When developing new products with protective properties, it is important to take into account the ingredient composition of the raw materials, which has a therapeutic and prophylactic effect, and from this point of view, raspberries and lingonberries deserve special attention. In order to maximize the preservation and extraction of natural, physiologically functional components of wild berries (vitamins, micro - and macroelements, phenolic compounds, pectin and other substances) were developed and created multienzymatic compositions for the pretreatment of lingonberry (MEKb) and raspberry (MEKm). Of great interest were studies on the characterization and content of dyes in the samples being studied. As structural elements of anthocyanins in raspberry and lingonberry juice, as well as in their enzymatic juices, disaccharides were established, the main structural component of which is cyanidine, and the quantitative content of anthocyanins (mg/dm3) in the juice of lingonberry and raspberry, corresponded - 305.40 and 106.20, and in the enzymatic juice of lingonberry and raspberry - 553.70 and 146.40. The high content of dyes is an important criterion for the use of BFS and MFS as a source of natural dyes. A higher antioxidant activity was found in BFS and MFS (1.3 and 1.5 times, respectively) compared with juice obtained without the use of enzyme preparations. Therefore, the enzymatic juice of berries has high antioxidant properties and is a source of natural dyes, so it can be considered as a promising raw material in the production of functional foods that have a beneficial regulatory effect on the human body.


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