scholarly journals Effect of foliar calcium chloride treatment on the level of chlorogenic acid, β-carotene, lutein and tocopherols in lettuce (Lactuca sativa L.)

2012 ◽  
Vol 64 (1) ◽  
pp. 65-72 ◽  
Author(s):  
Irena Perucka ◽  
Katarzyna Olszówka
Keyword(s):  
Phenolic Compounds ◽  
Chlorogenic Acid ◽  
Lactuca Sativa ◽  
Foliar Application ◽  
Tocopherol Content ◽  
Control Treatment ◽  
Total Phenolic ◽  
Total Phenolic Compounds ◽  
Growing Period ◽  
Β Carotene

The aim of the presented study was to determine the effect of foliar application of CaCl<sub>2</sub> on the level of β-carotene, lutein, tocopherols and phenolic compounds in the leaves of lettuce cv. Omega (<i>Lactuca sativa</i> L.). The experiments were conducted in the greenhouse of the Faculty of Cultivation and Fertilisation of Horticultural Plants, University of Life Sciences in Lublin. During the growing period, 7 and 14 days before harvest, the plants were treated with a solution of CaCl<sub>2</sub> with concentrations of 0.1 M and 0.2 M. Plants sprayed with water were the control treatment in the experiment. Analyses were performed on whole leaves and the blade without midrib. The obtained results indicate that the leaves of lettuce cv. Omega are a good source of phenolic compounds, carotenoids and tocopherols. The dominant carotenoid in lettuce cv. Omega was β-carotene. Foliar application of CaCl<sub>2</sub> on the plants did not have any significant effect on the level of β-carotene and lutein in the whole leaves. The contents of tocopherols, total phenolic compounds and chlorogenic acid were dependent on the concentration of CaCl<sub>2</sub>. The application of 0.1 M CaCl<sub>2</sub> solution in the plants resulted in a decrease in the level of total phenolic compounds and chlorogenic acid, and an increase in tocopherol content. However, the treatment of the plants with 0.2M CaCl<sub>2</sub> solution caused a lowering of the concentration of tocopherols and an increase in the content of chlorogenic acid and total phenolic compounds.

scholarly journals (35) The Influence of 1-MCP on Firmness, Soluble Sugar Levels, Chlorogenic Acid, and Total Phenolic Compounds in Ripening Banana Fruit

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1005B-1005
Author(s):  
Daniel A. Stanley ◽  
Donald J. Huber
Keyword(s):  
Phenolic Compounds ◽  
Chlorogenic Acid ◽  
Soluble Sugar ◽  
Total Phenolic ◽  
Banana Fruit ◽  
Fruit Firmness ◽  
Total Phenolic Compounds ◽  
Fresh Weight ◽  
Control Fruit ◽  
Sugar Levels

In previous studies, 1-methylcyclopropene (1-MCP) was shown to significantly suppress peel degreening and appearance of senescent spotting of banana fruit (Stanley and Huber, 2004). In the present study, the effect of the ethylene antagonist on banana pulp soluble sugar levels and on peel soluble and total phenolics was measured. One hundred and sixty hands (10 boxes) of banana fruit (Musaacuminata cv. Cavendish) were treated with ethylene (300 μL·L-1, 24 h, 15 °C, 90% RH) at a commercial ripening facility in Bradenton, Fla., and transported by truck (15 °C) to the University of Florida. Fruit were sorted and placed in 174-L ripening chambers, where 80 hands received 500 nL·L-1 1-MCP for two 12-h periods at 18 °C, while the other 80 hands (controls) were maintained in identical containers without 1-MCP for equal time periods at 18 °C. Mean whole fruit firmness in both treatment groups was 140 N and decreased to 15 N (controls) and 30 N (1-MCP) by day 12. Soluble sugars in the pulp of control fruit achieved levels between 160–180 mg·g-1 fresh weight by day 8, while 1-MCP treated fruit required about 12 days to achieve similar soluble sugar levels. Total phenolic compounds present in peel tissue of control and 1-MCP treated fruit required 10 and 14 days, respectively, to achieve levels of about 4000 μg·g-1 fresh weight. Chlorogenic acid levels, a subset of total peel phenolic compounds, peaked above 500 μg·g-1 by day 10 in control fruit and by day 12 in 1-MCP treated fruit. Maintenance of fruit firmness along with the achievement of acceptable sugar levels of 1-MCP treated fruit demonstrate possible benefits of suppression of ethylene action for retail and processing markets for banana fruit.

scholarly journals Biochemical indices of hop resistance to Verticillium albo-atrum and Fusarium sambucinum

2013 ◽  
Vol 34 (2) ◽  
pp. 277-284
Author(s):  
Jan Piotrowski ◽  
Marian Milczak
Keyword(s):  
Phenolic Compounds ◽  
Chlorogenic Acid ◽  
Peroxidase Activity ◽  
Early Spring ◽  
Total Phenolic ◽  
Fusarium Sambucinum ◽  
Total Phenolic Compounds ◽  
Tolerant Variety ◽  
Biochemical Indices ◽  
Verticillium Albo Atrum

The contents of total phenolic compounds, chlorogenic acid and peroxidase activity as well as monophenols to polyphenols ratio were studies in the suckers of the hops as indices of resistance to <i>Verticillium albo-atrum</i> and <i>Fusarium sambucinum</i>. The suckers of hop taken in the early spring from the healthy and infected plots were used in the experiments. As a research material were included cv. 'Northern Brewer' - a wilt tolerant variety, two wild susceptible varieties - cv. 'Lubelski' and cv. 'Brewers Gold', four breeding clones and one male plant. It was found that, 'Northern Brewer' contains more total phenolic compounds, rnonophenols and chlorogenic acid, and in particular considerably higher peroxidase activity as compared to cv. 'Lubelski'. Taking into consideration the contents of these compounds, in the majority of cases, the new breeding clones were similar to the mother variety 'Northern Brewer'. It seems resonable to assume, that the new clones should be more wilt tolerant than varieties and populations cultivated in our country.

scholarly journals Comparison of Phenolic Compounds and Antioxidant Activities of Raw and Cooked Turkish Artichoke Cultivars

2021 ◽  
Vol 5 ◽  
Author(s):  
Seda Kayahan ◽  
Didem Saloglu
Keyword(s):  
Phenolic Compounds ◽  
Chlorogenic Acid ◽  
Acid Content ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Antioxidant Activities ◽  
Total Phenolic ◽  
Total Phenolic Compounds ◽  
Microwave Cooking ◽  
Gallic Acid Equivalent

The objective of this work was to determine the total phenolic compounds and antioxidants in raw and cooked Sakiz and Bayrampasa variety artichokes in parts such as inner bracts, stems, receptacles, and outer bracts. The artichokes were cooked by boiling, microwaving, and baking methods, and total phenolic compounds and antioxidants of cooked artichokes were evaluated. While TPC (total phenolic content), DPPH (2,2-diphenyl-1-picryl-hydrazine), and CUPRAC values for the leaves of raw Bayrampasa artichoke were found to be 686 mg gallic acid equivalent (GAE)/100 g, 478 mg TE/100 g, and 4,875 mg TE/100 g, respectively, TPC, DPPH, and CUPRAC values for stems of Sakiz artichoke were determined to be 1,579 mg GAE/100 g, 1,259 mg TE/100 g, and 3,575 mg TE/100 g. A significant increase in the content of TPC, DPPH, and CUPRAC values was observed for all cooking applications of both artichokes. DPPH and CUPRAC values increased by 11 and 43 times and 17 and 6.7 times after baking of Sakiz and microwave cooking of Bayrampasa, respectively. Chlorogenic acid, cynarine, and cynaroside content of both artichokes had an increment after all cooking applications. Chlorogenic acid content was improved 29 and 58 times after baking of Sakiz and microwave cooking of Bayrampasa, respectively.

scholarly journals Selenium Fortification Alters the Growth, Antioxidant Characteristics and Secondary Metabolite Profiles of Cauliflower (Brassica oleracea var. botrytis) Cultivars in Hydroponic Culture

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1537
Author(s):  
Mahboobeh Saeedi ◽  
Forouzandeh Soltani ◽  
Mesbah Babalar ◽  
Fatemeh Izadpanah ◽  
Melanie Wiesner-Reinhold ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Foliar Application ◽  
Hydroponic Culture ◽  
Growth And Yield ◽  
Total Phenolic ◽  
Sodium Selenate ◽  
Total Phenolic Compounds ◽  
Metabolite Profiles ◽  
Antioxidant Characteristics ◽  
Low Selenium

Nowadays the importance of selenium for human health is widely known, but most of the plants are poor in terms of selenium storage and accumulation because of the low selenium mineralization potential of the soil. For this purpose, foliar application of different sodium selenate concentrations (0, 5, 10, 15, 20 mg/L) was used to treat the cauliflower cultivars “Clapton” and “Graffiti”. Higher yields and other related vegetative attributes were improved at 10 and 15 mg/L sodium selenate application. At a concentration of 10 mg/L sodium selenate, photosynthetic pigments, total phenolic compounds and antioxidant capacity were enhanced in both cultivars, but the “Graffiti” cultivar responded stronger than the “Clapton” cultivar. The glucosinolates were accumulated in response to selenium fortification and the highest amounts were found in the “Graffiti” cultivar at 10 mg/L. Selenium accumulated concentration-dependently and rose with higher fertilization levels. In general, foliar application of selenium at 10 mg/L led to an accumulation of secondary metabolites and also positively affected the growth and yield of florets.

PRE and POST Herbicidal Activity of Monoterpenes against Barnyard Grass (Echinochloa crus-galli)

Weed Science ◽  
2016 ◽  
Vol 64 (1) ◽  
pp. 191-200 ◽  
Author(s):  
Neama A. A. Gouda ◽  
Mona M. G. Saad ◽  
Samir A. M. Abdelgaleil
Keyword(s):  
Phenolic Compounds ◽  
Seed Germination ◽  
Seedling Growth ◽  
Shoot Growth ◽  
Foliar Application ◽  
Biological Activities ◽  
Herbicidal Activity ◽  
Total Phenolic ◽  
Total Phenolic Compounds ◽  
Chlorophyll Contents

Monoterpenes, the major constituents of essential oils, are known for their diverse biological activities. This study was conducted to assess the herbicidal effect of six monoterpenes viz. (R)-carvone, 1,8-cineole, cuminaldehyde, (S)-fenchone, geraniol, (S)-limonene, and (R)-linalool on barnyardgrass under laboratory and glasshouse conditions with a view to explore the possibility of their utilization for future weed management. The effect of monoterpenes on chlorophyll contents and total phenolic compounds was also evaluated. The inhibitory effects of monoterpenes on seed germination and seedling growth were tested at concentrations of 1, 2, 4, 6, and 8 mM. The results showed that geraniol and (R)-carvone caused greatest reduction of seed germination with complete inhibition at the concentrations > 2 mM. Similarly, these two compounds were the most potent inhibiters for root and shoot growth. In general, monoterpenes were less effective against seed germination than seedling growth. Furthermore, the inhibition of root growth by all compounds was greater than that of shoot growth. In foliar application treatments under glasshouse conditions, the monoterpenes reduced the fresh and dry weights, and shoot length of two-leaf stage barnyardgrass at concentrations of 1 and 2%. In addition, the tested monoterpenes caused phytotoxicity symptoms, mainly chlorosis and necrosis, followed by weed death. Complete weed control was observed in the treatments with 1 and 2% of geraniol, and 2% of cuminaldehyde. Further, a reduction of chlorophyll contents and total phenolic compounds of barnyardgrass leaves was noticed, indicating that the monoterpenes cause adverse effect on photosynthesis and weed metabolism. Based on the results of this study, it can be concluded that the monoterpenes, particularly geraniol, (R)-carvone, and cuminaldehyde, can be used as potential natural herbicides.

scholarly journals Vermicompost on the production and nutraceutical quality of jalapeño pepper fruits (Capsicum annuum L.)

2020 ◽  
Vol 38 (4) ◽  
pp. 795-803
Author(s):  
Bernardo Espinosa-Palomeque ◽  
Pedro Cano-Ríos ◽  
Lilia Salas-Pérez ◽  
Gabriela González-Rodríguez ◽  
Arturo Reyes-González ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Fruit Quality ◽  
Crop Production ◽  
Fruit Weight ◽  
Control Treatment ◽  
Total Phenolic ◽  
Total Phenolic Compounds ◽  
Average Ratio

The vermicompost is used as a source of nutrients and substrate in protected horticulture because it promotes crop production more sustainable. The objective was to evaluate different proportions of vermicompost: sand (VC:S, v:v) on quality and yield of jalapeño pepper produced in greenhouse environments. Five proportions were compared VC:S, 1:1, 1:2, 1:3, 1:4, 1:5 and a control: (Steiner nutrient solution). The experiment was established in a randomized blocks design with ten replications. On average ratio, VC:S (1:1) produce highest fruit weight, fruit length, total phenolic compounds, flavonoids, and antioxidant capacity against to control treatment (0:1 VC:S). Those results indicate that VC is a fertilization alternative to increase nutraceutical fruit quality, without decrease the jalapeño pepper yield.

scholarly journals Antioxidant and antimicrobial capacity of aqueous extract of kale and potential supplementation in fermented dairy beverage

2021 ◽  
Vol 17 (10) ◽  
Author(s):  
Luana Cristina Rodrigues Da Silva ◽  
Alcinei Mistico Azevedo ◽  
Anna Christina Almeida ◽  
Francine Souza Alves Da Fonseca ◽  
Igor Viana Brandi ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Aqueous Extract ◽  
Activity Concentration ◽  
Fermented Milk ◽  
Control Treatment ◽  
Total Phenolic ◽  
Total Phenolic Compounds ◽  
Dry Extract ◽  
Fermented Dairy

The objective of this work was to evaluate the antioxidant and antimicrobial capacity of Kale leaves, as well as to quantify the levels of phenolic compounds and flavonoids present in its aqueous extract, and the viability when added to a fermented milk drink. The leaves were subjected to four treatments: fresh crushed in a blender, fresh sprayed with liquid nitrogen, dried in an oven at 45°C for 72 hours and frozen. Antioxidant activity, concentration of total phenolic compounds, flavonoids and antimicrobial activity were determined. To prepare the dairy drink, the amounts of 5%, 10% and 15% of the dry extract of Kale leaves were added, as well as 15% of the dry extract with sorbate and the control treatment. Furthermore, it determined the antioxidant activity and the number of lactic acid bacteria in the drink. The dried and frozen leaves showed better antioxidant activity and, when compared to fresh powdered leaves, they did not differ in phenolic compounds, presenting the best contents. Fresh powdered leaves showed the highest flavonoid yield. The aqueous extracts of kale leaves did not show antibacterial activity against the studied microorganisms. The abstract did not show antioxidant capacity contents of total phenolic compounds and flavonoids in kale subjected to different treatments.

Phytochemical composition and antioxidant activity of Malus baccata (L.) Borkh. fruits

2020 ◽  
Vol 3 (1) ◽  
pp. 47
Author(s):  
Nadezhda Petkova ◽  
Manol Ognyanov ◽  
Blaga Inyutin ◽  
Petar Zhelev ◽  
Panteley Denev
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Activities ◽  
Ethanol Extract ◽  
Titratable Acidity ◽  
Total Phenolic ◽  
Total Phenolic Compounds ◽  
Frap Assay ◽  
Phytochemical Composition ◽  
Malus Baccata

Crab apple (Malus baccata (L.) Borkh.) was mainly distributed in Europe as an ornamental plant, but the nutritional properties of its edible fruits were not fully revealed. The aim of the current study was to characterize the phytochemical composition of ripen carb apple fruits and to evaluate their nutritional and antioxidant potentials. The fruits were assayed for moisture and ash content, proteins, lipids, carbohydrates, titratable acidity (TA), pH, total phenolic compounds and natural pigments. Among the analyzed carbohydrates cellulose was found in the highest content (6% dw), followed by sugars (sucrose, glucose and fructose) and 1.8 % dw uronic acids. The total chlorophylls and carotenoids contents in their fruits were 6.51 and 4.80 μg/g fw, respectively. Total monomeric anthocyanins were not detected. The highest content of total phenolic compounds (2.67 mg GAE/g fw) was found in 95 % ethanol extract from fruits, while the total flavonoids were relatively low – 0.1 mg QE/g fw. DPPH assay (17.27 mM TE/g fw) and FRAP assay (14.34 mM TE/g fw) demonstrated in vitro antioxidant activities of crabapple. Malus baccata fruits were evaluated as a rich source of dietary fibers and phenolic compounds with significant antioxidant potential that could be used in human nutrition.

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