scholarly journals Chemical and mineral characteristics, bioactive compounds and antioxidant activity of blackberries grown in an organic system

2020 ◽  
Vol 11 ◽  
pp. e3272
Author(s):  
Rafaela Schmidt Souza ◽  
Carlos Roberto Martins ◽  
Luis Eduardo Corrêa Antunes ◽  
Márcia Vizzotto ◽  
Ana Cristina Richter Krolow ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Organic Farming ◽  
Bioactive Compounds ◽  
Block Design ◽  
Farming System ◽  
Anthocyanin Content ◽  
Organic System ◽  
Mineral Characteristics ◽  
Organic Farming System

Blackberry bushes have increasingly drawn producers’ and consumers’ interest since they find their cultivation characteristics, production and nutraceutical qualities advantageous. Both chemical and mineral characteristics, bioactive compounds and antioxidant activity found in blackberries are extremely relevant factors to be considered when cultivars are chosen. Chemical analyses of the nutritional composition of fruit is important, since they can help studies of quality genotypes. Besides, fruit with high nutritional values contribute to human health when they are often consumed. This study aimed at evaluating chemical and mineral characteristics, besides bioactive compounds and antioxidant activity, of different blackberry bush genotypes grown in an organic farming system in Pelotas, Rio Grande do Sul (RS), Brazil. Production, soluble solid content, hydrogenionic potential, total titratable acidity, SS/TA ratio, minerals, phenolic compounds, anthocyanins and antioxidant activity of six blackberry bush genotypes – ‘Tupy’, ‘BRS Xingu’, Selection Black 178, Selection Black 128, Selection Black 112 and Selection Black 145 – were evaluated. It was a randomized block design with three replicates of every plant. Selection Black 178 yielded fruits with the highest value of SS/TA ratio and had the highest accumulated production. The highest anthocyanin content was found in ‘BRS Xingu’. Selection Black 112 had the highest total contents of phenolic compounds and the highest antioxidant activity, whereas ‘Tupy’ exhibited their lowest values. Selection Black 178 adapted well to the organic farming system, a fact that did not happen to Selection Black 128.

scholarly journals PEMBERIAN KOTORAN KAMBING TERHADAP PERTUMBUHAN DAN HASIL WORTEL (Daucus carota) DAN BAWANG DAUN (Allium fistulosum L.) DENGAN BUDIDAYA TUMPANGSARI

Agric ◽  
2016 ◽  
Vol 26 (1) ◽  
pp. 52 ◽  
Author(s):  
Trias Budi Rahayu ◽  
Bistok Hasiholan Simanjuntak ◽  
Suprihati
Keyword(s):  
Organic Farming ◽  
Daucus Carota ◽  
Confidence Level ◽  
Block Design ◽  
Farming System ◽  
Growth And Yield ◽  
Allium Fistulosum ◽  
Organic Farming System ◽  
Organically Managed ◽  
Range Test

<p>Intercropping cultivation model is commonly used in organic farming system. The system is aimed to save land and fertilizer aside from creating biodiversity in a portion of a planting. The research was conducted in Permata Hati Farm, Ciburial Village, Cisarua Sub district, Bogor Regency, West Java from October 2012 to January 2013. The purposes of the research are: a) to know the effect of goat dung application toward the growth and yield of organically managed carrot and scallion intercropping, and b) to determine the best quantity of goat dung to promote growth and yield of carrot and scallion intercropping. Randomized Completely Block Design (RCBD) with 6 treatments and 3 replications was used in this experiment. The treatments applied were 0 ton ha- 1, 5 ton ha-1, 10 ton ha-1, 15 ton ha-1, 20 ton ha-1, and 25 ton ha-1 of goat dung. Duncan’s Multiple Range Test (DMRT) at the confidence level of 95% was used to analyze the result. The application of 15 ton ha-1 goat dung affected scallion’s height and number of seedlings as well as carrot’s biomass and height. This dosage resulted in the best yield of scallion and carrot intercropping.</p>

scholarly journals Systems of organic farming in spring vetch I: Biological response of sucking insect pests

2015 ◽  
Vol 30 (2) ◽  
pp. 77-84
Author(s):  
Ivelina Nikolova ◽  
Natalia Georgieva
Keyword(s):  
Plant Growth ◽  
Organic Farming ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Farming System ◽  
Conventional Farming ◽  
Organic System ◽  
Foliar Fertilizer ◽  
Biological Insecticide ◽  
Organic Farming System

Four systems of organic farming and a conventional farming system were studied over the period 2012-2014. The organic system trial variants included: I - an organic farming system without any biological products used (growth under natural soil fertility) - Control; II - an organic farming system involving the use of a biological foliar fertilizer and a biological plant growth regulator (Polyversum+Biofa); III - an organic farming system in which a biological insecticide (NeemAzal T/S) was used; IV - an organic farming system including a combination of three organic products: the foliar fertilizer, the plant growth regulator and the bioinsecticide (Polyversum+Biofa+NeemAzal T/S). Variant V represented a conventional farming system in which synthetic products were used in combination (foliar fertilizer, plant growth regulator and insecticide: Masterblend+Flordimex 420+Nurelle D). Treatment of vetch plants with the biological insecticide NeemAzal in combination with Biofa and Polyversum resulted in the lowest density of sucking pests, compared to all other organic farming methods tested (i.e. without NeemAzal, with NeemAzal alone, and its combination with Biofa and Polyversum). The greatest reduction in pest numbers during the vegetation period in that variant was observed in species of the order Thysanoptera (36.0-41.4%), followed by Hemiptera, and the families Aphididae (31.6-40.3%) and Cicadellidae (27.3-28.6%). This combination showed an efficient synergistic interaction and an increase in biological efficacy as compared to individual application of NeemAzal. The highest toxic impact was found against Thrips tabaci, followed by Acyrthosiphon pisum. An analysis of variance regarding the efficacy against the species A. pisum, E. pteridis and T. tabaci showed that type of treatment had the most dominant influence and statistically significant impact.

scholarly journals ANALISIS EFISIENSI TEKNIS USAHATANI PADI SAWAH APLIKASI PERTANIAN ORGANIK ( Studi Kasus Di Desa Sumber Ngepoh, Kecamatan Lawang ) Kabupaten Malang MT 2009 – 2010

el–Hayah ◽  
2012 ◽  
Vol 2 (1) ◽  
Author(s):  
Tien Tien
Keyword(s):  
Organic Farming ◽  
Technical Efficiency ◽  
Farming Systems ◽  
Farming System ◽  
Rice Farming ◽  
Organic System ◽  
Organic Certification ◽  
Organic Rice ◽  
Field School ◽  
Organic Farming System

<p>The application of organic farming on rice farming in Indonesia is still new to  know. The farming interested if efficiency economics. The meaning efficiency economics if the technical   efficiency. This research aimed to evaluate the performance of organic rice farming systems, focusing on: (1) identifying the range of application of organic farming on rice farming, (2) analyzing the productivity and income from applying organic  farming, and (3)  analyzing  the technical   efficiency of  applying  organic  farming  and identifying factors that influence it.<br />The study was conducted in Malang Regency with take sample Sumber Ngepoh village, Lawang, Malang. This village is purposively taken because this is only a village in East Java which has obtained a certificate as a producer of organic rice from Organic Certification Agency. Furthermore, farmers did not interested application of organic farming. The sample of farmers 120  respondents selected by using non-proportionate stratified random sampling among those applying organic rice farming. The data are anal<br />The results at the study stage show that there was diversity between implementing organic and agricultural organic farming system. This diversity reached only 8,33 percent application of organic rice farming of the total land area, while the rest was still in the transitional stage of applying organic system. The application of organic rice farming must independently be able to increase production and income of the farmer. <br />Judging from the level of technical efficiency, the application of organic rice farming is generally quite high, above the value of TE (technical efficiency) 0.8, while applying an independent organic farming has higher technical efficiency than others. Determinant of technical efficiency is the practice of Sekolah Lapang  or Field School and the independence of farmers in affording resources locally.</p><p>Keywords: Technical efficiency, independence of rice farming  system, Organic  farming applications.<br /><br /></p>

scholarly journals ANALISIS EFISIENSI TEKNIS USAHATANI PADI SAWAH APLIKASI PERTANIAN ORGANIK ( Studi Kasus Di Desa Sumber Ngepoh, Kecamatan Lawang ) Kabupaten Malang MT 2009 – 2010

el–Hayah ◽  
2012 ◽  
Vol 1 (4) ◽  
Author(s):  
Tien Tien
Keyword(s):  
Organic Farming ◽  
Technical Efficiency ◽  
Farming Systems ◽  
Farming System ◽  
Rice Farming ◽  
Organic System ◽  
Organic Certification ◽  
Organic Rice ◽  
Field School ◽  
Organic Farming System

The application of organic farming on rice farming in Indonesia is still new to  know. The farming interested if efficiency economics. The meaning efficiency economics if the technical   efficiency. This research aimed to evaluate the performance of organic rice farming systems, focusing on: (1) identifying the range of application of organic farming on rice farming, (2) analyzing the productivity and income from applying organic  farming, and (3)  analyzing  the technical   efficiency of  applying  organic  farming  and identifying factors that influence it.<br />The study was conducted in Malang Regency with take sample Sumber Ngepoh village, Lawang, Malang. This village is purposively taken because this is only a village in East Java which has obtained a certificate as a producer of organic rice from Organic Certification Agency. Furthermore, farmers did not interested application of organic farming. The sample of farmers 120  respondents selected by using non-proportionate stratified random sampling among those applying organic rice farming. The data are anal<br />The results at the study stage show that there was diversity between implementing organic and agricultural organic farming system. This diversity reached only 8,33 percent application of organic rice farming of the total land area, while the rest was still in the transitional stage of applying organic system. The application of organic rice farming must independently be able to increase production and income of the farmer. <br />Judging from the level of technical efficiency, the application of organic rice farming is generally quite high, above the value of TE (technical efficiency) 0.8, while applying an independent organic farming has higher technical efficiency than others. Determinant of technical efficiency is the practice of Sekolah Lapang  or Field School and the independence of farmers in affording resources locally.<br /><br />Keywords: Technical efficiency, independence of rice farming  system, Organic  farming applications.<br /><br />

scholarly journals The effect of the organic plant protection system on the chemical composition and quality of grapes and red wines

2021 ◽  
Vol 285 ◽  
pp. 05024
Author(s):  
Elena Ostroukhova ◽  
Irina Peskova ◽  
Natalia Lutkova ◽  
Elena Stranishevskaya
Keyword(s):  
Phenolic Compounds ◽  
Plant Protection ◽  
Crop Protection ◽  
Conservative System ◽  
Farming System ◽  
Red Wines ◽  
Organic System ◽  
Organic Farming System ◽  
Plant Protection System

The biologization of viticulture is considered as a necessary attribute of its effective functioning, aimed at reducing environmental and economic risks. Comparative studies of the effect of conservative system of agriculture, including chemical crop protection, and the organic system with using preparations Extrasol, Respecta, Chitosan, Tiovit Jet on physicochemical indicators and quality of grapes and wines were carried out. We used grape cultivar ‘Bastardo magarachskiy’ from the South Coast area of Crimea. It was found that using preparations in the organic farming system contributed to the accumulation (α<0.05) of sugars in berries on average by 15%, phenolic compounds – by 13-22%, anthocyanins – by 23%, and PPO activity of the must. Experimental schemes of treatment did not influence the accumulation of aldehydes in berries. Their effect on the content of ketoacids was determined by the crop year conditions. Experimental wines were distinguished by a higher (α<0.05) content of ethyl alcohol, phenolic compounds (on average by 46%), anthocyanins (1.6 times), pyruvic and α-ketoglutaric acids (1.6 and 1.9 times) and a lower (by 20 %) concentration of aldehydes. Experimental schemes of treatment did not influence on the organoleptic of wines. The best result was shown by the complex of Tiovit Jet and Extrasol.

scholarly journals Valorization of Blueberry By-Products (Vaccinium spp.): Antioxidants by Pressurized Liquid Extraction (PLE) and Kinetics Models

2021 ◽  
Vol 12 (2) ◽  
pp. 1692-1704
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Propylene Glycol ◽  
Bioactive Compounds ◽  
Antioxidant Properties ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
By Products

Blueberry by-products are rich in bioactive compounds with antioxidant properties, such as phenolic compounds and anthocyanins. Pressurized liquid extraction (PLE) is an alternative to traditional methods in the obtention of bioactive compounds and can adjust pressure and temperature conditions to regulate the solubility of target compounds in the solvent. In this context, this study aimed to evaluate different solvents in the extraction of the compounds, antioxidants from the blueberry by-products obtained by using the PLE technique and evaluating Weibull and power-law models in the kinetics for extraction yield, total phenolic content (TPC), and monomeric anthocyanin content (MAC). Extract yields of 31.33 to 48.98% (m/m) were obtained. The highest yield was obtained using ethylene glycol 20% (v/v). The extracts present TPC between 3541.62 and 4116.62 mg GAE/100g dr, the propylene glycol 20% (v/v) presented the highest content. The extracts present a MAC between 801.06 and 1036.65 mg C3CE/100g dr, the methanol presented the highest content. The best antioxidant activity was demonstrated by the extract obtained using propylene glycol 20% (v/v) as a solvent, with IC50 of the 0.11 mg/mL, justified by the higher content of extracted phenolic compounds. All extracts presented good antioxidant activity, and the PLE technique can be used to obtain biocomposites blueberry by-products.

scholarly journals SOIL RESPIRATION AND BULK DENSITY UNDERORGANIC AND CONVENTIONALFARMINGSYSTEMS

2018 ◽  
Vol 14 (4) ◽  
pp. 167-171
Author(s):  
Antonio Victor Cavalcante da Rocha Silva ◽  
Junia Mariza Alves Araujo ◽  
Andrea Rhavena Rodrigues Arruda ◽  
Francisco Barbosa de Macedo Jr ◽  
Jadson Emanuel Lopes Antunes ◽  
...  
Keyword(s):  
Soil Respiration ◽  
Bulk Density ◽  
Organic Farming ◽  
Farming System ◽  
Soil Bulk Density ◽  
Conventional Farming ◽  
Organic System ◽  
Organic Farming System ◽  
Farming Soil ◽  
Made In

The aim of this study was to evaluate, in the field, the soilrespiration and bulk density underconventional and organic farming plots. The evaluations were made in different plots established as conventional farming system and organic farming system with six, nine, twelve, fifteen, eighteen and twenty one months old. Plots were divided in four transects (subplots) and ineach subplot were evaluated soil respiration, bulk density and porosity. The soil respiration was significantly greater in organic farming system with fifteen, eighteen and twenty-one monthsold as compared with conventional farming. Soil bulk density decreased fifteen months afteradoption of organic system. Theresults showed that the adoption of practices in organic farming plots increases microbial activity and decreases soil bulk density over time.

Regime of soil humus rural residential areas organic farming systems

2018 ◽  
Vol 2 (95) ◽  
pp. 78-81
Author(s):  
L.I. Shkarivska
Keyword(s):  
Organic Farming ◽  
Rural Areas ◽  
Humus Content ◽  
Farming Systems ◽  
Farming System ◽  
Organic Substrates ◽  
Residential Areas ◽  
Typical Chernozem ◽  
Podzolic Soils ◽  
Organic Farming System

The changes of the soil’s humus soil within the rural areas are investigated for the organic farming system. The most significant impact of organic agriculture on humus content over 55% was observed on soddy podzolic soils (V>75%), the lowest –7,5% on typical chernozem (V≈16%). Changes in the qualitative composition of humus for the introduction of various types of organic substrates are analyzed.

scholarly journals Nutritional Value of Jerusalem Artichoke Tubers (Helianthus tuberosus L.) Grown in Organic System under Lithuanian and Polish Conditions

Agriculture ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 440
Author(s):  
Barbara Sawicka ◽  
Honorata Danilčenko ◽  
Elvyra Jariene ◽  
Dominika Skiba ◽  
Leszek Rachoń ◽  
...  
Keyword(s):  
Nutritional Value ◽  
Field Experiments ◽  
Geographic Location ◽  
Jerusalem Artichoke ◽  
Farming System ◽  
Biologically Active ◽  
Block Method ◽  
Organic System ◽  
Organic Farming System ◽  
True Protein

The aim of the study was to assess the nutritional value of H. tuberosus tubers grown in the organic farming system in Poland and Lithuania. The work was based on field experiments carried out in 2015–2017 in Parczew (Poland) and Akademija (Lithuania). The experiments were carried out using the randomized block method in four replications. Two cultivars of Jerusalem artichoke (JA) ‘Albik’ and ‘Rubik’ were tested. After the harvest of tubers, an assessment of their quality was carried out by standard methods. Due to the relocation of JA cultivation from Central and Eastern Europe to Northeast Europe, there were changes in the chemical composition of H. tuberosus tubers. The tubers from crops in Lithuania were characterized by a lower content of inulin, crude fiber and protein, ascorbic acid, total and endogenous amino acids than in Poland, but a higher content of true protein and macroelements. Edaphic factors determined, to a greater extent than genetic factors, the nutritional value of tubers. Assessment of the influence of varietal characteristics, meteorological conditions, and geographic location on the amount of biologically active compounds in JA will allow growers and consumers to choose the most suitable cultivars.

scholarly journals Organic Farming Increases the Technical Efficiency of Olive Farms in Italy

Agriculture ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 209
Author(s):  
Maria Raimondo ◽  
Francesco Caracciolo ◽  
Concetta Nazzaro ◽  
Giuseppe Marotta
Keyword(s):  
Organic Farming ◽  
Technical Efficiency ◽  
Stochastic Frontier ◽  
Farming System ◽  
Positive Role ◽  
Conventional Agriculture ◽  
Direct Sales ◽  
Organic Farming System ◽  
The Impact

While there is growing recognition of the positive role played by organic farming in the reduction of the negative externalities due to conventional agriculture, there is uncertainty about the effect of the latter on the economic performance of the farms. In this scenario, the present paper aims at investigating the effect of organic farming on technical efficiency in Italian olive farms. A cross-section dataset was analyzed through the stochastic frontier function, where the adoption of organic farming was explicitly modeled. Then, to obtain an unbiased estimate of the impact of organic farming on technical efficiency, a propensity score matching method was implemented. The findings reveal that organic farming increases technical efficiency in Italian olive farms by approximately 10%. The highest impact of organic farming is observed in small farms. As for the propensity to become organic, we found that the production and the direct sales of a higher quality of gross marketable output, as well as the intensity of labor and machines, increase the probability to adopt organic farming. Conversely, farm localization, the availability of family labor, and financial capital discourage conversion to the organic farming system.

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