scholarly journals Selected Antioxidants in Organic vs. Conventionally Grown Apple Fruits

2020 ◽  
Vol 10 (9) ◽  
pp. 2997
Author(s):  
Dominika Średnicka-Tober ◽  
Marcin Barański ◽  
Renata Kazimierczak ◽  
Alicja Ponder ◽  
Klaudia Kopczyńska ◽  
...  
Keyword(s):  
Vitamin C ◽  
Phenolic Acids ◽  
Production System ◽  
Fruit Production ◽  
Organic Production ◽  
Strong Interactions ◽  
Phenolic Antioxidants ◽  
System Effect ◽  
Health Promoting ◽  
Apple Fruits

The apple (Malus domestica Borkh.) is one of the most widely cultivated temperate fruits globally, gaining scientific interest as a rich source of antioxidants with a demonstrated beneficial human health impact. Since a growing number of consumers are increasingly seeking safe and healthy food options, alternative fruit production systems such as organic farming, and their potential to provide safe and nutritious foods, have been gaining increasing attention in the last decades. The aim of the presented study was, therefore, to analyse and to compare the concentrations of selected health-promoting antioxidants, such as phenolic acids, flavonols, and vitamin C, in fruits of three apple cultivars (Champion, Gala, and Idared) grown in conventional and certified organic orchards in Poland. All analyses were performed using the high-performance liquid chromatography (HPLC) method. Organic apples tested within the study, compared to the conventionally grown ones, were characterised by significantly higher concentrations of phenolic acids (av. >31%) and flavonols (av. >66%) with the identified differences being consistent in all three cultivars and two seasons. The greatest production system effect was observed in the case of Idared. Significant cultivar and production season effects on the concentration of the measured fruit phenolics, with strong interactions between the two factors, were also identified. Vitamin C content in the fruits was strongly dependent on the year-to-year differences in the fruit growing conditions. The study suggests that the organic production system has a potential to provide apple fruits rich in selected health-promoting phenolic antioxidants.

scholarly journals The Effect of Organic and Conventional Cultivations on Antioxidants Content in Blackcurrant (Ribes nigrum L.) Species

2021 ◽  
Vol 11 (11) ◽  
pp. 5113
Author(s):  
Joanna Rachtan-Janicka ◽  
Alicja Ponder ◽  
Ewelina Hallmann
Keyword(s):  
Vitamin C ◽  
High Performance ◽  
Agricultural Practices ◽  
Bioactive Compound ◽  
Hplc Method ◽  
Strong Interactions ◽  
Total Phenolic ◽  
Cultivation System ◽  
Health Promoting ◽  
Safe Food

The number of consumers seeking safe and health-beneficial foods is systematically increasing. Consumers demand more environmentally friendly and safe food options coming from organic farming. Blackcurrants fruits are a perfect source of biological active compounds, such as vitamin C, polyphenols and flavonoids as well anthocyanins. Organic agricultural practices have modified the level of bioactive compounds in blackcurrant fruits. The novelty and the aim of the presented study was to compare the concentrations of selected health-promoting antioxidants in fruits of three blackcurrants (‘Ben Adler’, ‘Tiben’ and ‘Titania’) grown in organic and conventional orchards in Poland. For bioactive compound determination, the high-performance liquid chromatography (HPLC) method was used. The obtained results showed that organic blackcurrant fruits contained significantly more vitamin C (9.4 mg/100 g f.w.), total polyphenols (189.2 mg/100 g f.w.), total phenolic acids (10.3 mg/100 g f.w.), and total flavonoids (178.8 mg/100 g f.w.), as well anthocyanins (167.9 mg/100 g f.w.), compared to conventional ones. The selected cultivars and the years of cultivation system affect the concentration of the measured polyphenols, with strong interactions between these factors. The experiment confirms the hypothesis that organic blackcurrants should be a very important part of well-balanced, healthy diet.

The Effects of Organic and Conventional Cultivation Systems on the Content of Bioactive Substances in Herbal Plants

2011 ◽  
Vol 75 (1) ◽  
pp. 133-144 ◽  
Author(s):  
Renata Kazimierczak ◽  
Ewelina Hallmann ◽  
Małgorzata Kazimierczyk ◽  
Oliwia Sokołowska ◽  
Ewa Rembiałkowska
Keyword(s):  
Vitamin C ◽  
Phenolic Acids ◽  
Organic Production ◽  
Biologically Active ◽  
Raw Material ◽  
Bioactive Substances ◽  
Cultivation System ◽  
Cultivation Systems ◽  
Herbal Plants ◽  
Analytical Research

The Effects of Organic and Conventional Cultivation Systems on the Content of Bioactive Substances in Herbal Plants Five species of herbs from organic and conventional cultivation (dropsy plant, lovage, mint, thyme and sage) were used for this experiment. The research material consisted of usable parts of fresh herbs, which were harvested in the first ten days of September 2009 and 2010. In order to avoid losses in the content of biologically active compounds in the plant material, the herbs were frozen at -80°C immediately after harvesting, and then subjected to freezedrying; finally, analytical research was conducted. The results of two-year studies indicated that herbal plants from organic production contained a higher level of dry matter, vitamin C and flavonoids, while the conventional ones contained more phenolic acids. Regardless of the cultivation system, dropsy plant and mint were distinguished by the content of phenolic acids, the highest level of flavonoids was found in thyme, while lovage was the raw material containing the most vitamin C. The qualitative analysis of phenolic compounds contained in herbs showed that the most diverse composition of phenolic acids was attributed to sage and thyme, which also contained the largest number of identified flavonoids.

scholarly journals Chemical Composition of Selected Beetroot Juices in Relation to Beetroot Production System and Processing Technology

2016 ◽  
Vol 44 (2) ◽  
pp. 491-498 ◽  
Author(s):  
Renata KAZIMIERCZAK ◽  
Agata SIŁAKIEWICZ ◽  
Ewelina HALLMANN ◽  
Dominika SREDNICKA-TOBER ◽  
Ewa REMBIAŁKOWSKA
Keyword(s):  
Vitamin C ◽  
Phenolic Acids ◽  
Production System ◽  
Nutritional Composition ◽  
Lemon Juice ◽  
Processing Technology ◽  
Beetroot Juice ◽  
Processing Technologies ◽  
Research Material ◽  
Fermented Juice

Market offer of vegetable juices in Europe is growing, and the vegetable species and processing technologies used become more diversified resulting in a large range of juice types. At the same time consumers look for natural and safe products with pro-health properties. The aim of this study was to evaluate the nutritional composition of selected juices based on beetroots coming from different agricultural systems and processed according to different technologies. Research material consisted of conventional and organic juices marketed in Poland, in that pure pressed juices, fermented juice and juices from concentrate, pure and combined with apple or lemon juice. The concentration of vitamin C, organic acids, total and reducing sugars, phenolic acids, flavonoids and betalains has been determined in the juices. All beetroot juices were abundant in betalains, with higher concentrations of these compounds found in pure beetroot juices when compared to juices combined with apple or lemon. Highest concentration of betanin-3-O-glucoside was found in pure conventional juice from concentrate, while highest betanidin content was found in pure organic fermented juice. Highest vitamin C contents were found in pressed organic juices combined with apple and lemon. All juices were abundant in polyphenols, mainly phenolic acids, with highest concentrations of these antioxidants found in conventional pure pressed juice. The study shows that beetroot juices, independently on the beetroot processing technology and agricultural production system, are very valuable products due to the presence of numerous bioactive compounds, especially betalains, in their composition. Therefore beetroot juice consumption should be promoted among consumers.

scholarly journals Antioxidant complexes of sea buckthorn (Hippopha? rhamnoides L.) of northwest Russia

2021 ◽  
Vol 83 (1) ◽  
pp. 108-114
Author(s):  
L. P. Nilova ◽  
S. M. Malyutenkova
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Vitamin C ◽  
Phenolic Acids ◽  
Sea Buckthorn ◽  
Total Phenolic ◽  
Phenolic Antioxidants ◽  
Total Phenolic Compounds ◽  
Botanical Variety ◽  
Botanical Varieties

Sea buckthorn fruits, due to the content of complexes of water- and fat-soluble antioxidants, have therapeutic and prophylactic properties. Their content depends on the species, subspecies, varieties, botanical varieties, ecological and geographical origin of sea buckthorn fruits. The paper presents the results of studies of the composition of antioxidants and antioxidant activity of three botanical varieties of sea buckthorn (Hippopha? rhamnoides L.) growing in the Leningrad region of the northwestern region of Russia. As part of the antioxidant complex, the content of phenolic antioxidants (phenolic compounds, flavonoids, phenolic acids) and vitamin C was investigated. The greatest variability of water-soluble sea buckthorn antioxidants is associated with the content of vitamin C – from 82 to 297 mg/100g, depending on the botanical variety. The content of total phenolic compounds was 600–795 mg/100g, and the content of flavonoids and phenolic acids was 265–346 and 105–170 mg/100g, respectively. In the complex of fat-soluble antioxidants of sea buckthorn fruits of different varieties, the content of vitamin E and carotenoids was investigated, which was 6.9–8.3 and 10.7–14.9 mg/100g, respectively. The content of vitamin C influences the formation of antioxidant properties determined by the DPPH method and coulometric titration of water and alcohol fractions, forming a number of botanical varieties of sea buckthorn: Orange> Vitamin> Giant. The antioxidant activity of alcoholic fractions is 1.3–1.7 times higher than that of aqueous fractions, depending on the botanical variety of sea buckthorn fruits. The content of phenolic antioxidants (total phenolic compounds, flavonoids and phenolic acids) influenced the antioxidant activity determined by the FRAP method, forming a number of sea buckthorn varieties: Vitamin> Orange> Giant

scholarly journals Conventional and Organic Honeys as a Source of Water- and Ethanol Soluble Molecules with Nutritional and Antioxidant Characteristics

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3746
Author(s):  
Magdalena Polak-Śliwińska ◽  
Małgorzata Tańska
Keyword(s):  
Antioxidant Activity ◽  
Immune System ◽  
Vitamin C ◽  
Geographical Area ◽  
Production Method ◽  
Climatic Conditions ◽  
Organic Production ◽  
Organoleptic Characteristics ◽  
Nutritional Characteristics ◽  
The Impact

The benefits of natural honeybee products (e.g., honey, royal jelly, beeswax, propolis, beevenom and pollen) to the immune system are remarkable, and many of them are involved in the induction of antibody production, maturation of immune cells and stimulation of the immune system. The type of plants in the geographical area, climatic conditions and production method have a significantly influence on the nutritional quality of honey. However, this variability can influence consumer liking by the sensory attributes of the product. The aim of this work was to compare the most popular honeys from Poland in terms of nutritional value, organoleptic properties and antioxidant activity. In the study, five varieties of honey (honeydew, forest, buckwheat, linden and dandelion) from conventional and organic production methods were tested. The nutritional characteristics of honey samples included acidity, content of water, sugars, vitamin C, HMF and phenolics (total and flavonoids), while honey color, taste, aroma and consistency were investigated in the organoleptic characteristics. The antioxidant activity was determined in water- and ethanol-soluble honey extracts using DPPH and ORAC tests. The results showed that organoleptic and nutritional characteristics of popular Polish honeys differ significantly in relation to plant source and production method. The significant effect of honey variety on the content of HMF, saccharose and phenolics, as well as acidity and antioxidant capacity were noted. The impact of variety and variety × production method interaction was significant in the case of the content of vitamin C, glucose and fructose. A visible difference of buckwheat and forest honeys from other samples was observed. The highest content of total phenolics with antioxidant activity based on the SET mechanism was found in buckwheat honeys, while forest honeys were richer in flavonoids.

scholarly journals Rice yields and the effect of weed management in an organic production system with winter flooding

2021 ◽  
pp. 1-13
Author(s):  
Toru Uno ◽  
Ryosuke Tajima ◽  
Kazumi Suzuki ◽  
Mizuhiko Nishida ◽  
Toyoaki Ito ◽  
...  
Keyword(s):  
Weed Management ◽  
Production System ◽  
Organic Production ◽  
Rice Yields ◽  
Winter Flooding

scholarly journals Strawberry-Derived Exosome-Like Nanoparticles Prevent Oxidative Stress in Human Mesenchymal Stromal Cells

Biomolecules ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 87
Author(s):  
Francesca Perut ◽  
Laura Roncuzzi ◽  
Sofia Avnet ◽  
Annamaria Massa ◽  
Nicoletta Zini ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Vitamin C ◽  
Mesenchymal Stromal Cells ◽  
Stromal Cells ◽  
Mammalian Cells ◽  
Dependent Manner ◽  
Potential Health ◽  
Human Mesenchymal Stromal Cells ◽  
Health Promoting ◽  
Size And Morphology

Plant-derived exosome-like nanovesicles (EPDENs) have recently been isolated and evaluated as potential bioactive nutraceutical biomolecules. It has been hypothesized that EPDENs may exert their activity on mammalian cells through their specific cargo. In this study, we isolated and purified EPDENs from the strawberry juice of Fragaria x ananassa (cv. Romina), a new cultivar characterized by a high content of anthocyanins, folic acid, flavonols, and vitamin C and an elevated antioxidant capacity. Fragaria-derived EPDENs were purified by a series of centrifugation and filtration steps. EPDENs showed size and morphology similar to mammalian extracellular nanovesicles. The internalization of Fragaria-derived EPDENs by human mesenchymal stromal cells (MSCs) did not negatively affect their viability, and the pretreatment of MSCs with Fragaria-derived EPDENs prevented oxidative stress in a dose-dependent manner. This is possibly due to the presence of vitamin C inside the nanovesicle membrane. The analysis of EPDEN cargo also revealed the presence of small RNAs and miRNAs. These findings suggest that Fragaria-derived EPDENs may be considered nanoshuttles contained in food, with potential health-promoting activity.

scholarly journals Homeopathic and high dilution preparations for pest management to tomato crop under organic production system

2012 ◽  
Vol 30 (1) ◽  
pp. 51-57 ◽  
Author(s):  
Tatiani A Modolon ◽  
Pedro Boff ◽  
Mari Inês C Boff ◽  
David José Miquelluti
Keyword(s):  
Solanum Lycopersicum ◽  
Production System ◽  
Leaf Spot ◽  
Block Design ◽  
Organic Production ◽  
Field Conditions ◽  
High Dilution ◽  
Tomato Crop ◽  
Arnica Montana ◽  
Septoria Leaf Spot

Tomato crops (Solanum lycopersicum) under conventional production system are constantly treated against pest and diseases, with organic synthetic pesticides that are used may cause serious disturbance to environment and human health. This research was carried out in order to study the effect of homeopathic and high dilution preparations on pests and diseases management of tomato crop under organic production system. Two experiments were conducted under field conditions and one in greenhouse. All of them in randomized block design with the cultivar Santa Cruz Kada. The treatments consisted of homeopathic preparations Staphysagria, Arsenicum album, Sulphur, Arnica montana, high dilution preparations of Solanum lycopersicum and Solanum aculeatissimum, at the decimal (DH) or centesimal (CH) scale of hahnemanian high dilution. Bordeaux mixture, cupric preparation, and Bacillus thuringiensis were also included in weight doses. The preparation Arnica montana 12DH increased the tomato yield under field conditions. The damage incidence of small borer was efficiently reduced with applications of Sulphur 12CH that equalling to B. thuringiensis. The same treatment did not reduce the large borers. B. thuringiensis reduced also the septoria leaf spot incidence in the field. In greenhouse, the high dilution preparation of tomato at 12DH completely suppressed the septoria leaf spot and drastically reduced the same disease at 24DH. The homeopathic and high dilution preparations have the potential to be effective on replacing pesticides that are used on tomato, and could be suitable to fill legal requirement for organic production system.

scholarly journals Branching features of apple cultivars in integrated and organic production technology

2018 ◽  
Vol 24 (3-4) ◽  
Author(s):  
P. Dremák ◽  
Á. Csihon ◽  
I. Gonda
Keyword(s):  
Organic Farming ◽  
Production Technology ◽  
Production System ◽  
Production Systems ◽  
Environmentally Friendly ◽  
Organic Production ◽  
Integrated System ◽  
Integrated Production ◽  
Apple Cultivars ◽  
Environmentally Friendly Production

In our study, vegetative characteristics of 39 apple cultivars were evaluated in environmentally friendly production systems. Numbers of the branches of the central leader in different high zones were shown. According to our results, number of the branches of the axis was probably larger in the integrated production system, compared to the organic one, which is related to the conditional status of the trees. Based on our experiences training and maintaining canopies in integrated system was easier, as relative more extensive canopies were needed in organic farming.

scholarly journals Compost application in integrated and organic fruit cultivation

2012 ◽  
pp. 135-139
Author(s):  
Anita Szabó ◽  
István Gonda ◽  
Inre Vágó
Keyword(s):  
Vitamin C ◽  
Nutrient Management ◽  
Sugar Content ◽  
Fruit Production ◽  
Apple Variety ◽  
Apple Varieties ◽  
Golden Delicious ◽  
Compost Application ◽  
One Year ◽  
Organic Fruit

Nowadays the success vegetable and fruit production are unimaginable without regular nutrient management. One of the ways to supply the required nutrients in an environmentally friendly way is the application of composts, which is less widespread so far. Compost doses were applied in biological and integrated apple orchards in cooperation with the Institute of Horticultural Science in the years 2010 and 2011. Different changes were resulted by the compost treatments in the examined parameters in case of both apple varieties (Golden Delicious and Pinova). There is no clear effect of compost on the changes of ash-, total acids, Vitamin C and the sugar content until now, because the improvement of the nutritional indicators takes more time. However significant differences were observed after one year between the apple varieties. Higher ash-, total acids and sugar content were measured in case of the apple variety Pinova, while the measurements showed higher Vitamin C content in case of the variety Golden Delicious.

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