scholarly journals Edible Wild Flowers: An Innovative but Ancient Food

Proceedings ◽  
2020 ◽  
Vol 70 (1) ◽  
pp. 32
Author(s):  
Stefania Toscano ◽  
Valeria Rizzo ◽  
Giuseppe Muratore ◽  
Daniela Romano
Keyword(s):  
Antioxidant Activity ◽  
Weight Loss ◽  
Shelf Life ◽  
Negative Influence ◽  
Biologically Active ◽  
Gas Composition ◽  
Highest Weight ◽  
Ancient Food ◽  
Active Substances ◽  
Main Factor

Edible flowers are often mentioned in connection with biologically active substances and their presence is today frequent in supermarkets. The main factor that determines their use is their appearance, so particular attention must be paid to the shelf life. Flowers must be protected from desiccation and their quality must be preserved. Thus, the aims of this study were to evaluate the shelf life of the spontaneous edible flowers Glebionis segetum, Malva sylvestris, and Tropaeolum majus and Papaver rhoeas, and to detect the presence of major polyphenols. The flowers were packaged with polypropylene (PP) bags and then stored in a refrigerator at +4 ± 1 °C. Samples were tested in the dark and in the presence of light for 12 days. Gas composition, weight loss, and color were registered once the packages were opened; antioxidant activity, total phenols, and enzymatic analyses were performed. The light has a negative influence, the weight loss was limited, and the gas composition did not change significantly during shelf life, with variation in the studied samples. The highest variation in color parameters was found in control samples, whereas the extracts from G. segetum showed the highest antioxidant activity and polyphenol content; in addition, it was the most resistant but also had the highest weight loss. Furthermore, enzymatic results indicated the PP was the best packaging film if used in the dark. P. rhoeas was characterized by extreme fragility, M. sylvestris was not able to tolerate low temperatures, and T. majus changed its color progressively with time.

scholarly journals Bioactive Compounds, Antioxidant Activity, and Biological Effects of European Cranberry (Vaccinium oxycoccos)

Molecules ◽  
2018 ◽  
Vol 24 (1) ◽  
pp. 24 ◽  
Author(s):  
Tunde Jurikova ◽  
Sona Skrovankova ◽  
Jiri Mlcek ◽  
Stefan Balla ◽  
Lukas Snopek
Keyword(s):  
Antioxidant Activity ◽  
Biological Effects ◽  
Folk Medicine ◽  
Meat Products ◽  
Biologically Active ◽  
Anticancer Activities ◽  
Fruit Species ◽  
American Cranberry ◽  
Antibacterial And Antifungal ◽  
Active Substances

Lesser known fruits or underutilized fruit species are recently of great research interest due to the presence of phytochemicals that manifest many biological effects. European cranberry, Vaccinium oxycoccos fruit, as an important representative of this group, is a valuable source of antioxidants and other biologically active substances, similar to American cranberry (V. macrocarpon) which is well known and studied. European cranberry fruit is rich especially in polyphenolic compounds anthocyanins (12.4–207.3 mg/100 g fw), proanthocyanins (1.5–5.3 mg/100 g fw), and flavonols, especially quercetin (0.52–15.4 mg/100 g fw), which mostly contribute to the antioxidant activity of the fruit. Small cranberry is also important due to its various biological effects such as urinary tract protection (proanthocyanidins), antibacterial and antifungal properties (quercetin, proanthocyanidins, anthocyanins), cardioprotective (proanthocyanidins) and anticancer activities (proanthocyanidins), and utilization in food (juice drinks, jams, jellies, sauces, additive to meat products) and pharmacological industries, and in folk medicine.

scholarly journals COMPOSITION OF BIOLOGICALLY ACTIVE SUBSTANCES OF THE HORSE CHESTNUT (AECULUS HIPPOCASTANUM L.)

ÈKOBIOTEH ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 33-39
Author(s):  
V.P. Kurchenko ◽  
◽  
N.V. Sushinskaya ◽  
K.I. Maiorava ◽  
E.I. Tarun ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Horse Chestnut ◽  
Hazard Class ◽  
Active Substances

The study of the composition of biologically active substances, alcoholic extracts from flowers of Aeculus hippocastanum L. According to the results of HPLC-MS and GC-MS analyzes, the extract contains the main amounts of phenolic compounds: quercetin, epicatechin, kaempferol. In addition, the extract contains fatty acids and their esters, alcohols, 3-deoxy-d-manno lactone, 1,2,3,5-cyclohexantethrol, α-methyl-mannofuranoside, γ sitosterol. Antioxidant activity of an extract from flowers of A. hippocastanum is associated with the peculiarities of the compositionof biologically active substances. The toxological-hygienic assessment of flowers of this species in acute and subacute experiments showed that it belongs to the 4th hazard class (low hazard).

scholarly journals ЭКОЛОГО-ФИТОХИМИЧЕСКИЕ ОСОБЕННОСТИ ЦВЕТКОВ БУЗИНЫ ЧЕРНОЙ SAMBUCUS NIGRA L. В УСЛОВИЯХ УРБАНИЗИРОВАННОЙ СРЕДЫ

2021 ◽  
Vol 13 (4) ◽  
pp. 1
Author(s):  
Н.А. Виноградова
Keyword(s):  
Antioxidant Activity ◽  
Biologically Active ◽  
Sambucus Nigra ◽  
Lead And Cadmium ◽  
Total Antioxidant ◽  
Phenolic Substances ◽  
The Russian Federation ◽  
Herbal Medicinal ◽  
Urbanized Areas ◽  
Active Substances

The impacts of the urbanized environment of Donetsk region on the contents of biologically active substances and heavy metals in black elderberry (Sambucus nigra L.) flowers and on the total antioxidant activity of their preparations were evaluated. The contents of lead, cadmium and mercury in all samples studied were within the tolerable limits specified for herbal medicinal raw products. The accumulation coefficients of lead and cadmium were found to decrease with increasing soil levels of these toxicants, whereas the level of mercury did not depend on the degree of soil pollution. The contents of active substances in all samples collected in Donbas conform to the requirements of the State Pharmacopoeia of the Russian Federation. In fact, the contents of carotenoids, flavonoids and hydroxycinnamic acids are increased in S. nigra flowers collected in urbanized areas; however, the contents of other phenolic substances (anthocyanins and tannins) are decreased. The contents of ascorbic and free organic acids are highest under moderately urbanized conditions, so as the antioxidant activity of S. nigra flower preparations is. The results suggest that prospects for the pharmaceutical use of S. nigra flowers collected in urbanized areas of Donbas are promising.

scholarly journals Influence of drying methods on preservation of biologically active substances of garden strawberries being raw material for food enrichment

2021 ◽  
Vol 845 (1) ◽  
pp. 012094
Author(s):  
I M Novikova ◽  
O M Blinnikova ◽  
L G Eliseeva ◽  
D A Blinnikova
Keyword(s):  
Shelf Life ◽  
Storage Period ◽  
Storage Conditions ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Raw Material ◽  
Drying Methods ◽  
Urgent Problem ◽  
And Storage ◽  
Active Substances

Abstract At present, the preservation of the consumer properties of berry products is an urgent problem. Use of fresh garden strawberries is limited by a short storage period and seasonality. Under optimal storage conditions in a normal atmosphere, the average shelf life of strawberries is from 2 to 9 days depending on the variety. To meet the needs of the population in garden strawberries and meet the physiological needs in a unique complex of biologically active substances, strawberries are subjected to different processing methods. Drying being a type of fruit and berry products processing has the following advantages: a significant increase in the shelf life of products, a decrease in the mass and storage volumes of dried berries, preservation of minerals, carbohydrates, dietary fiber, antioxidants, bioflavonoids and many biologically active compounds in berries. Modern drying technologies allow preserving the content of essential vitamins to its full extent. Comparison of two technologies for drying garden strawberries has established that vitamins and other biologically active substances are well preserved in berries. Berries dried by convective vacuum-impulse method (CVI) are recommended to be used for food enrichment.

scholarly journals Application of the thin-layer chromatography method for analysis of plant antioxidant activity

Food systems ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 26-30
Author(s):  
N. V. Kupaeva ◽  
E. R. Vasilevskaya ◽  
L. V. Fedulova ◽  
E. A. Kotenkova
Keyword(s):  
Antioxidant Activity ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
High Performance ◽  
Biologically Active ◽  
Chromatography Method ◽  
Physicochemical Methods ◽  
Ethanol Extracts ◽  
Layer Chromatography ◽  
Active Substances

Plants are a rich source of effective non-toxic biologically active substances. Various physicochemical methods of analysis are used for evaluation of plant antioxidant activity. Composition of ethanol extracts of red, yellow and white onion husks, dried rosemary, basil, and chaga were studied by high performance thin layer chromatography (HPTLC) method. The antioxidant activity of the obtained fractions on a chromatographic plate was assessed by subsequent DPPH screening. The extracts red and yellow onion husk and rosemary demonstrated the highest antioxidant activity, variability of the qualitative composition and similarity of antioxidant profiles, while extract of white onion husks did not contain any antioxidant classes. Intensive spots with Rf of 0.13-0.97 were observed along the whole chromatogram track corresponding to red onion husks. It was also found that all tested extract, excepting white onion husk and chaga, contained spots with varying degrees of intensity in the Rf range of 0.96-0.98, which corresponded quercetin Rf value.

scholarly journals Development of beverage recipes with specified bio-corrective properties based on plant raw materials with the ultrasonic extraction method

2020 ◽  
Vol 82 (3) ◽  
pp. 189-199
Author(s):  
M. V. Manukovskaya ◽  
I. P. Shchetilina ◽  
A. G. Kudryakova ◽  
S. R. Kozlova ◽  
A. O. Torosyan ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Vitamin C ◽  
Human Body ◽  
Extraction Method ◽  
Raw Materials ◽  
Ultrasonic Extraction ◽  
Biologically Active ◽  
Plant Raw Materials ◽  
Organoleptic Characteristics ◽  
Active Substances

The development of targeted beverages is a priority for healthy eating. Plant raw materials containing a wide variety of biologically active substances are used for their production. The presence of these ingredients helps to improve many physiological processes in the body, as well as to increase its immune status. The high efficiency of ultrasonic effects on various technological processes was confirmed by numerous studies. Ultrasonic extraction was carried out at t = 20 ? and an ultrasonic wave frequency of 22 kHz. As a result of the research, it was found that the equilibrium state is achieved within 15 minutes with ultrasound exposure. Natural raw materials, their chemical composition and the influence on the human body were studied in the work to develop new beverages recipes. The selected ingredients in a certain quantitative ratio made it possible to obtain beverages with improved bio-corrective properties, which allows satisfying the daily requirement of the human body for biologically active substances. Ultrasonic exposure has a positive effect on the organoleptic characteristics of the beverage and the aftertaste, as proved by the comparative organoleptic evaluation of the samples. The functional properties of the beverages developed were confirmed experimentally. The following was determined in the beverages: macronutrients content, antioxidant activity, vitamin C content, shelf life duration. The ultrasonic extraction method application in the technology of beverages manufacturing allows: to reduce the preparation time by half, to reduce the amount of raw materials by 15%, to increase the content of macronutrients by 45%, to increase the content of vitamin C by 35%, to increase the antioxidant activity by 45-50%, to increase storage stability by 50-60%, to improve organoleptic characteristics. The results obtained prove the intensifying effect of ultrasonic exposure in the production of functional beverages.

scholarly journals The efficiency enzyme preparation and feed additive cfa 10 use for pigs feeding

2016 ◽  
Vol 18 (2) ◽  
Author(s):  
G. M. Ogorodnichuk
Keyword(s):  
Enzyme Preparation ◽  
Negative Influence ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Feed Additive ◽  
Daily Growth ◽  
Balanced Diet ◽  
Manufacturing Company ◽  
Fattening Pigs ◽  
Active Substances

The three component enzyme preparation produced by Ladyzhyn scientific and manufacturing company «Enzym» was used in our research; this preparation consists of amilosubtylin, protosubtylin and pectinase. The diets balance was achieved by feed additive CFA 10, its recipe was created by Fodder research institute of UAAS and Trypilskyy biochemical plan of Obukhiv district, Kyiv region. He usage of three component enzyme preparation and feed additive CFA 10 with diets with some unbalanced ingredients facilitates increasing average daily growth; it give the possibility to save some deficient feeds without negative influence on slaughter characteristics and internal weight. The feeding of fattening pigs by diets with feed additive CFA 10 aimed to be balanced by some biologically active substances provides the increasing of growth by 19.2% and decreases the feed units charges by 22.7%. The additional usage of three component enzyme preparation with balanced diet by all ingredients does not facilitate the pigs efficiency and does not increase their slaughter qualities.

scholarly journals Spelt (Triticum aestivum ssp. Spelta)– from Field to Cosmetics

2017 ◽  
Vol 9 (5) ◽  
Author(s):  
Georgieva-Krasteva L. ◽  
Hristova I. ◽  
Mihaylova D. ◽  
Dobreva K.
Keyword(s):  
Antioxidant Activity ◽  
Triticum Aestivum ◽  
Skin Penetration ◽  
Biologically Active ◽  
Total Phenolic ◽  
Antioxidant Compounds ◽  
Physicochemical Stability ◽  
Pleasant Odor ◽  
Promising Source ◽  
Active Substances

Plants have been intensively used as sources of biologically active compounds. Recently, the attention was directed to spelt (Triticum aestivum ssp. spelta) as a promising source of antioxidant compounds. In the present study, the antioxidant activity and total phenolic content of Triticum spelta glycerin extracts were determined. Three different extraction techniques were performed – conventional, microwave- and ultrasound- assisted extractions. Best polyphenol content and antioxidant activity were resulted when heat reflux extraction was applied. Moreover, nourishing and regenerating cream (NRC) formulation was prepared by incorporating 1 % glycerin spelt extract. The physicochemical stability of this formulation was assessed as well as sensory and skin penetration caracteristics.The cosmetic preparation exhibited good emulsion and colour stability at all temperature tested (-10 °C; 25 °C and 40 °C) during 90 days. 85 % of volunteers assessed the skin penetration of NRC as good. The same percentage claimed pleasant odor caracteristic after application on skin. Based on these results it can be concluded that spelt is a promissing source of biologically active substances with various applications.

scholarly journals DEVELOPMENT OF SOUR-MILK HEALTHY BEVERAGES WITH THE USE OF NATURAL HERBAL NANOADDITIVES

2019 ◽  
Vol 13 (4) ◽  
Author(s):  
R. Pavlyuk ◽  
V. Pogarskaya ◽  
K. Balaba ◽  
T. Kravchuk ◽  
A. Pogarskiy
Keyword(s):  
Shelf Life ◽  
Fruits And Vegetables ◽  
Raw Materials ◽  
Food Additives ◽  
Jerusalem Artichoke ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Fresh Cheese ◽  
Active Substances

Technologies of healthfull products - bioyogurts with unique characteristics have been developed. The new products are characterized by a high content of naturally occurring biologically active substances - phytocomponents of fruits and vegetables (carrots, lemons with zest, apples, Jerusalem artichoke), in particular, β-carotene, phenolic compounds, tannins, ascorbic acid, ie substances having antioxidants. Besides, they have a high content of prebiotic substances - soluble pectic substances, cellulose, inulin and proteins. Recent biogurts play the role of natural thickeners and structure-forming agents. This makes it possible to eliminate the need for the use in the production of bio yoghurt food additives and synthetic additives. Technologies for making bio yoghurts are based on the use of nanosized cryo-additives from nanosize with the record content of biologically active substances (BAS), whose mass fraction in cryo-additives is 2.5 - 5.0 times greater than the original fresh cheese. Obtaining the latter is based on the complex action on the raw materials of cryogenic "shock" freezing with the use of liquid and gaseous nitrogen and cryodestruction with fine grinding. When making bioyoghurts, cryoadditives act as natural enrichment agents, structure-forming agents, texture stabilizers and dyes. In addition, phytoextracts from natural spices and medicinal herbs (echinacea, coriander, burkun, oregano) are included in the formulations for the enrichment of the BAS and for longer shelf life of new bio yoghurts. Whey was used as the basis for the production of bio yoghurts. New types of bio yoghurts in terms of the content of BAS exceed the known analogues and have 2 times longer shelf life (than control samples). Technological modes of production of bioyoghurts on bench semi-industrial equipment have been worked out. New yoghurts are recommended for introduction into production at large food enterprises, in establishments of restaurant business, for individual food.

scholarly journals Antimicrobial Activity Exerted by Total Extracts of Germander

2019 ◽  
Vol 70 (9) ◽  
pp. 3242-3244
Author(s):  
Raul Chioibas ◽  
Razvan Susan ◽  
Monica Susan ◽  
Ovidiu Mederle ◽  
Delia Berceanu Vaduva ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Fungal Species ◽  
Polyphenolic Compounds ◽  
Biologically Active ◽  
E Coli ◽  
Methanolic Extracts ◽  
Teucrium Polium ◽  
Active Substances

In the present research, ethanolic and methanolic extracts of Teucrium polium (germander) were studied regarding the content of biologically active substances - in particular polyphenols - antioxidant activity and antibacterial activity. The extracts have been found to be rich in polyphenolic compounds, kaempferol and epichatechin have been found to be present in the highest concentrations. The antioxidant activity evaluated by the method of capturing the free radicals with DPPH revealed values close to those produced by the ascorbic acid. Antimicrobial activity was evaluated by the diffusimetric method and S. aureus and E. coli microorganisms were found to be the most sensitive while P. aeruginosa and fungal species were not sensitive.

Sign in / Sign up

Export Citation Format

Share Document