scholarly journals Affordable Production of Antioxidant Aqueous Solutions by Hydrodynamic Cavitation Processing of Silver Fir (Abies alba Mill.) Needles

Foods ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 65 ◽  
Author(s):  
Lorenzo Albanese ◽  
Alessandra Bonetti ◽  
Luigi D’Acqui ◽  
Francesco Meneguzzo ◽  
Federica Zabini
Keyword(s):  
Antioxidant Activity ◽  
Aqueous Solutions ◽  
Bioactive Compounds ◽  
Abies Alba ◽  
Food Preservation ◽  
Raw Material ◽  
Hydrodynamic Cavitation ◽  
Silver Fir ◽  
Processing Efficiency ◽  
Production Chain

Extracts from parts of coniferous trees have received increased interest due to their valuable bioactive compounds and properties, useful for plenty of experimental and consolidated applications, in fields comprising nutraceutics, cosmetics, pharmacology, food preservation, and stimulation of plant growth. However, the variability of the bioactive properties, the complexity of the extraction methods, and the use of potentially harmful synthetic chemicals, still represent an obstacle to the spreading of such valuable natural compounds. Hydrodynamic cavitation is emerging as a promising innovative technique for the extraction of precious food components and by-products from waste raw material of the agro-food production chain, which can improve processing efficiency, reduce resource consumption, and produce healthy, high-quality products. In this study, a process based on controlled hydrodynamic cavitation was applied for the first time to the production of aqueous solutions of silver fir (Abies alba Mill.) needles with enhanced antioxidant activity. The observed levels of the in vitro antioxidant activity, comparable or higher than those found for reference substances, pure extracts, and other water extracts and beverages, highlight the very good potential of the hydrodynamic cavitation (HC) process for the creation of solvent-free, aqueous solutions endowed with bioactive compounds extracted from silver fir needles.

scholarly journals Affordable Production of Antioxidant Aqueous Solutions by Hydrodynamic Cavitation Processing of Silver Fir (Abies Alba Mill.) Needles

2018 ◽  
Author(s):  
Lorenzo Albanese ◽  
Alessandra Bonetti ◽  
Luigi Paolo D'Acqui ◽  
Francesco Meneguzzo ◽  
Federica Zabini
Keyword(s):  
Antioxidant Activity ◽  
Aqueous Solutions ◽  
Bioactive Compounds ◽  
Abies Alba ◽  
Food Preservation ◽  
Raw Material ◽  
Hydrodynamic Cavitation ◽  
Silver Fir ◽  
Processing Efficiency ◽  
Production Chain

Extracts from parts of coniferous trees have received increased interest due to their valuable bioactive compounds and properties, useful for plenty of experimental and consolidated applications, in fields comprising nutraceutics, cosmetics, pharmacology, food preservation, and stimulation of plant growth. However, the variability of the bioactive properties, the complexity of the extraction methods, and the use of potentially harmful synthetic chemicals, still represent an obstacle to the spreading of such valuable natural compounds. Hydrodynamic cavitation is emerging as a promising innovative technique for the extraction of precious food components and by-products from waste raw material of the agro-food production chain, which can improve processing efficiency, reduce resource consumption, and produce healthy, high-quality products. In this study, a process based on controlled hydrodynamic cavitation was applied for the first time to the production of aqueous solutions of silver fir (Abies Alba Mill.) needles with enhanced antioxidant activity. The observed levels of the in vitro antioxidant activity, comparable or higher than those found for reference substances, pure extracts, and other water extracts and beverages, highlight the very good potential of the HC process for the creation of solvent-free, aqueous solutions endowed with bioactive compounds extracted from silver fir needles.

scholarly journals The Influence of Temperature, Storage Conditions, pH, and Ionic Strength on the Antioxidant Activity and Color Parameters of Rowan Berry Extracts

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3786
Author(s):  
Elena Cristea ◽  
Aliona Ghendov-Mosanu ◽  
Antoanela Patras ◽  
Carmen Socaciu ◽  
Adela Pintea ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Ionic Strength ◽  
Organic Acids ◽  
Bioactive Compounds ◽  
Acid Methyl Ester ◽  
Storage Conditions ◽  
Raw Material ◽  
Thermal Treatments ◽  
Spectrophotometric Methods ◽  
Berry Extracts

Recent trends in the food industry combined with novel methods in agriculture could transform rowan into a valuable raw material with potential technological applications. Thus, the aim of this research was to investigate the content of bioactive compounds in its fruits and to assess the color and antioxidant stability of the extracts prepared from such fruits during various thermal treatments and at different pH and ionic strength values. Various spectrophotometric methods, HPLC, and capillary electrophoresis were used to quantify the concentrations of bioactive compounds—polyphenols, carotenoids, organic acids, and to assess antioxidant activity and color. The results show that rowan berries contain circa 1.34–1.47 g/100 g of polyphenols among which include catechin, epicatechin, ferulic acid methyl ester, procyanidin B1, etc.; ca 21.65 mg/100 g of carotenoids including zeaxanthin, β-cryptoxanthin, all-trans-β-carotene, and various organic acids such as malic, citric, and succinic, which result in a high antioxidant activity of 5.8 mmol TE/100 g. Results also showed that antioxidant activity exhibited high stability when the extract was subjected to various thermal treatments, pHs, and ionic strengths, while color was mainly impacted negatively when a temperature of 100 °C was employed. This data confirms the technological potential of this traditional, yet often overlooked species.

Chemical composition of the silver fir (Abies alba) bark extract Abigenol® and its antioxidant activity

2014 ◽  
Vol 52 ◽  
pp. 23-28 ◽  
Author(s):  
Eva Tavčar Benković ◽  
Tina Grohar ◽  
Dušan Žigon ◽  
Urban Švajger ◽  
Damjan Janeš ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Abies Alba ◽  
Bark Extract ◽  
Silver Fir

scholarly journals The optimization of a conventional extraction of bioactive compounds from Cornus mas by RSM and the determination of favourability factors by GIS technique

2021 ◽  
Vol 49 (2) ◽  
pp. 12307
Author(s):  
Iuliana-Maria ENACHE ◽  
Gigi COMAN ◽  
Sanda ROȘCA ◽  
Camelia VIZIREANU ◽  
Liliana MIHALCEA
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Ethanol Concentration ◽  
Raw Material ◽  
Effect Of Temperature ◽  
Extraction Temperature ◽  
Solvent Concentration ◽  
Relevant Variable ◽  
Cornus Mas ◽  
Gis Technique

Rich in vitamins, polyphenols, carotenoids, carbohydrates, with a high antioxidant activity, cornelian cherry (Cornus mas) is one of the 65 species of Cornaceae family, fruits that are used in food industry, cosmetic industry or homeopathic medicine. The valuable bioactive compounds and the high economical potential of this tree makes suitable to be considered as a raw material to study the optimum extraction conditions in order to maximize the bioactive compounds’ concentration. In this study, the main purpose was to investigate both the favourable and restrictive conditions for Cornus mas using the GIS technique. The Remote Sensing and Geographic Information Systems (GIS) technique indicated the favourability factors for Cornus mas trees in Romania country. The response surface methodology was employed to study the effect of temperature, time and solvent concentration on the flavonoids’ (TFC) and polyphenols (TPC) concentrations and the antioxidant activity values. The maximum concentration of TPC (24.70 mg GAE/g raw material) and TFC (1.36 mg QE/g raw material) were obtained with 60% ethanol concentration at different temperature and time values. The cube model with centred faces for the Box-Behnken central composition revealed the highest value of the concentration of TAA (101.31 mg TE/g raw material) at 100% ethanol concentration, 50 °C extraction temperature and the maximum extraction time of 30 min. The most relevant variable was the solvent concentration and the obtained results suggested that the central-face cube model (86% for TPC, 97% for TFC and 95% antioxidant activity) approximated the experimental data.

scholarly journals Effects of Silver Fir (Abies alba Mill.) Needle Extract Produced via Hydrodynamic Cavitation on Seed Germination

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1399
Author(s):  
Francesca Ugolini ◽  
Alfonso Crisci ◽  
Lorenzo Albanese ◽  
Gabriele Cencetti ◽  
Anita Maienza ◽  
...  
Keyword(s):  
Water Extract ◽  
Abies Alba ◽  
Inhibitory Effect ◽  
Hydrodynamic Cavitation ◽  
Silver Fir ◽  
Distilled Water ◽  
Water Emulsion ◽  
Radicle Elongation ◽  
Oil In Water ◽  
Oil In Water Emulsion

This paper describes the antigerminant capacity of water extracts of silver fir needles created by means of hydrodynamic cavitation processes. Fir needles (2 kg fresh weight) collected in the winter were blended and crushed in ice, poured in water only (120 L) and processed in a controlled hydrodynamic cavitation device based on a fixed Venturi-shaped reactor. The A. alba water extract (AWE), comprising an oil-in-water emulsion of silver fir needles’ essential oil (100% AWE), was diluted in distilled water to 75% and 50% AWE, and all aqueous solutions were tested as antigerminant against four weeds and four horticultural species and compared to control (distilled water). This study shows the effective inhibitory effect of pure AWE on germination, which mainly contains limonene (15.99 ng/mL) and α-pinene (11.87 ng/mL). Seeds showed delayed germination and inhibition but also a reduction in radicle elongation in AWE treatments as compared to control. This combined effect was particularly evident in three weeds (C. canadensis, C. album and A. retrofllexus) while horticultural species showed mainly effects on the radicle elongation as found in L. sativa, P. crispum and S. lycospermum, which showed on average 58%, 32% and 28%, respectively, shorter radicles than in the control. P. sativum was not affected by AWE, thus raising the hypothesis that seed characteristics and nutrition reserve might play a role in the resistance to terpenes inhibitory effect.

Identification, in vitro and in vivo Antioxidant Activity, and Gastrointestinal Stability of Lignans from Silver Fir (Abies alba) Wood Extract

2017 ◽  
Vol 37 (6) ◽  
pp. 467-477 ◽  
Author(s):  
Eva Tavčar Benković ◽  
Dušan Žigon ◽  
Vladimir Mihailović ◽  
Tanja Petelinc ◽  
Polona Jamnik ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Abies Alba ◽  
Silver Fir ◽  
Wood Extract

scholarly journals Changes in the psysical-chemical composition, total polyphenols and antioxidant activity of fresh celery (Apium graveolens L.) dehydrated by hot air and by lyophilization

Agriscientia ◽  
2019 ◽  
Vol 36 (2) ◽  
pp. 57-65
Author(s):  
Roberto Ordoñez-Araque ◽  
Christian Narváez-Aldáz
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Raw Material ◽  
Apium Graveolens ◽  
Soluble Fiber ◽  
Total Polyphenols ◽  
Total Dietary Fiber ◽  
Hot Air ◽  
Long Time ◽  
Physical And Chemical

The food industry aims at offering food that provides not only nutritional but also functional properties. Celery has been used for a long time, but its bioactive compounds have remained unknown. The objective of this research is to measure the changes in the physical and chemical characteristics, total polyphenols (TP) and antioxidant activity (AA) after applying hot air dehydration (DA) and lyophilization (LF) with two different cut types: rod-shaped (R) and sliced (S). It was found that dehydration treatments can enhance some characteristics in celery. When comparing the results, the treatment of (LF-S) presented the best characteristics with less water activity, 46 % of total dietary fiber constituted by 41 % of insoluble fiber and 5 % soluble fiber, 377.69 mg GAE/100g in total polyphenol content and an antioxidant activity of 82.17 μmol TE/100g. These results allow to conclude that celery is a raw material with functional attributes and that it can be industrialized with dehydration technologies, which will enable a long useful life for its bioactive compounds.  

scholarly journals Optimization of Ultrasound-Assisted Extraction of Some Bioactive Compounds from Tobacco Waste

Molecules ◽  
2019 ◽  
Vol 24 (8) ◽  
pp. 1611 ◽  
Author(s):  
Marija Banožić ◽  
Ines Banjari ◽  
Martina Jakovljević ◽  
Drago Šubarić ◽  
Srećko Tomas ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Raw Material ◽  
Ultrasound Assisted Extraction ◽  
Leaf Extracts ◽  
Potential Source ◽  
Assisted Extraction ◽  
Different Types ◽  
Ultrasound Assisted ◽  
Tobacco Waste

This is the first study on ultrasound-assisted extraction (UAE) of bioactive compounds from different types of tobacco industry wastes (scrap, dust, and midrib). The obtained results were compared with starting raw material (tobacco leaves) to see the changes in bioactive compounds during tobacco processing. Results suggested that tobacco waste extracts possess antioxidant activity and considerable amounts of targeted bioactive compounds (phenolics and solanesol). The content of chlorogenic acid varied between 3.64 and 804.2 μg/mL, caffeic acid between 2.34 and 10.8 μg/mL, rutin between 11.56 and 93.7 μg/mL, and solanesol between 294.9 and 598.9 μg/mL for waste and leaf extracts, respectively. There were noticeable differences between bioactive compounds content and antioxidant activity in extracts related to applied UAE conditions and the used type of tobacco waste. Results show that optimal UAE parameters obtained by response surface methodology (RSM) were different for each type of material, so process optimization proved to be necessary. Considering that tobacco waste is mostly discarded or not effectively utilized, the results clearly show that tobacco waste could be used as a potential source of some bioactive compounds.

Temulawak (Curcuma  xanthorrhizaRoxb.) belongs to the family Zingiberaceae, has been empirically used as herbal medicines. The research was aimed to evaluate three promising lines of Temulawak based on their high bioactive contents (xanthorrhizol and curcuminoid) and its in vitro bioactivity (antioxidant and toxicity), and to obtain information on agrobiophysic environmental condition which produced high bioactive compounds. The xanthorrhizol and curcuminoid contents were measured by HPLC. In vitro antioxidant and toxicity were determined by DPPH (1,1-diphenyl-2-picryl-hydrazyl) method and BSLT (Brine Shrimp Lethality Test). The result showed that promising line A produced the highest yield of bioactive and bioactivity, i.e. 0.157 and 0.056 g plant-1of xanthorrizol and curcuminoid respectively. The IC50 of antioxidant activity was 65.09 mg L-1and LC50of toxicity was 69.05 mg L-1. In this study, Cipenjo had the best temulawak performance than two other locations. According to the agrobiophysic parameters, Cipenjo environmental condition was suitable for temulawak cultivation with temperature 28-34 ºC, rainfall ± 223.97 mm year-1 and sandy clay soil. Keywords: antioxidant, curcuminoid, promising lines, temulawak, xanthorrhizol

1970 ◽  
Vol 40 (2) ◽  
Author(s):  
Waras Nurcholis ◽  
Edy Djauhari Purwakusumah ◽  
Mono Rahardjo ◽  
Latifah K. Darusman
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Brine Shrimp ◽  
Clay Soil ◽  
Herbal Medicines ◽  
Environmental Condition ◽  
In Vitro Bioactivity ◽  
The Family ◽  
Promising Line

Temulawak (Curcuma  xanthorrhizaRoxb.) belongs to the family Zingiberaceae, has been empirically used as herbal medicines. The research was aimed to evaluate three promising lines of Temulawak based on their high bioactive contents (xanthorrhizol and curcuminoid) and its in vitro bioactivity (antioxidant and toxicity), and to obtain information on agrobiophysic environmental condition which produced high bioactive compounds. The xanthorrhizol and curcuminoid contents were measured by HPLC. In vitro antioxidant and toxicity were determined by DPPH (1,1-diphenyl-2-picryl-hydrazyl) method and BSLT (Brine Shrimp Lethality Test). The result showed that promising line A produced the highest yield of bioactive and bioactivity, i.e. 0.157 and 0.056 g plant-1of xanthorrizol and curcuminoid respectively. The IC50 of antioxidant activity was 65.09 mg L-1and LC50of toxicity was 69.05 mg L-1. In this study, Cipenjo had the best temulawak performance than two other locations. According to the agrobiophysic parameters, Cipenjo environmental condition was suitable for temulawak cultivation with temperature 28-34 ºC, rainfall ± 223.97 mm year-1 and sandy clay soil. Keywords: antioxidant, curcuminoid, promising lines, temulawak, xanthorrhizol

Pemberdayaan Masyarakat Sekitar Kampus Kelurahan Lere Melalui Pelatihan Pembuatan Nugget Ikan

2018 ◽  
Vol 2 (1) ◽  
pp. 56
Author(s):  
Asrawaty Asrawaty ◽  
If’all If’all
Keyword(s):  
Community Education ◽  
Urban Society ◽  
Food Preservation ◽  
Raw Material ◽  
Training Methods ◽  
Business Partner ◽  
Network Marketing ◽  
Community Partners ◽  
Urban Village ◽  
Rural Appraisal

Today's urban society is inclined to buy practical, ready-to-cook food and ready to eat. Ready of cook means thatit takes less time to prepare food. One form of food that is ready to cook is a nugget. Fish nuggets are very easy to processand the raw material of tuna is easily obtained in Lere urban village. aims to empower communities around the campuswith a commercial business orientation and accelerated the development, coaching, creati on of network marketing results,continuously. Using Community Education methods with Participatory Rural Appraisal (PRA/ RRA), training methods,demonstration experiments, and coaching and evaluation of small business partner groups. The demonstrationdemonstration demonstration demplot was conducted with the introduction of technology covering fish nugget processingtechnology. The result of this training activity is the Improvement of ability in running the partner business through thetraining activity that is held. Increasing the capability and income of community partners activities with the existence offish processing technology into nugget is one of food diversification and food preservation

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