scholarly journals Antioxidant properties of pepper (Capsicum annuum L.) depending on its cultivar and fruit colouration  

2021 ◽  
Author(s):  
Agnieszka Żurawik ◽  
Dorota Jadczak ◽  
Nikolay Panayotov ◽  
Piotr Żurawik
Keyword(s):  
Antioxidant Activity ◽  
Vitamin C ◽  
Chlorophyll A ◽  
Antioxidant Properties ◽  
Temperate Climate ◽  
Chlorophyll B ◽  
Total Chlorophyll ◽  
Climate Conditions ◽  
Biological Value ◽  
Fruit Colouration

Due to its nutritional, health-promoting and taste-related values, new cultivars are introduced every year. The aim of the study was to assess the biological value of Polish and Bulgarian cultivars of pepper grown in moderate climate conditions and collected at different degrees of maturity. Ascorbic acid, carotenoids, polyphenols, chlorophyll a, chlorophyll b, total chlorophyll and antioxidant activity (DPPH) were determined in air-dried fruit. The investigation included five Polish cultivars: Roberta, Marta Polka, Etiuda, Trapez, and Cyklon and five Bulgarian cultivars: Bulgarski Ratung, Sivriya, Kurtovska Kapiya, Delikates, and Dzuliunska Shipka. Its design involved randomised sub-blocks, with three replications comprising nine plants each. The area of a single plot was 1.44 m<sup>2 </sup>(1.2 m × 1.2 m). The study confirmed the strong antioxidant properties of pepper grown in the field, without cover, and under temperate climate conditions. The vegetable is rich in vitamin C, polyphenols, carotenoids, chlorophyll pigments, and shows high antioxidant activity. However, the biological value of pepper is cultivar-dependent and is also determined by the fruit colouration degree. The coloured fruits are richer in vitamin C and carotenoids than the green ones, and when matured, they have greater antioxidant capacity. Green fruits contain more chlorophyll a, chlorophyll b and total chlorophyll than the coloured ones. The fruits of cv. Etiuda were the richest in vitamin C, of cv. Sivriya in polyphenols, of cv. Dzuliunska Shipka in carotenoids, and of cv. Trapez in total chlorophyll. Cv. Sivriya showed the strongest antioxidant properties.  

scholarly journals Antioxidant Properties of Fruit and Vegetable Whey Beverages and Fruit and Vegetable Mousses

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3126
Author(s):  
Aleksandra Purkiewicz ◽  
Renata Pietrzak-Fiećko
Keyword(s):  
Antioxidant Activity ◽  
Chlorophyll A ◽  
Antioxidant Properties ◽  
Total Phenolic ◽  
Chlorophyll B ◽  
Fruit And Vegetable ◽  
Spectrophotometric Methods ◽  
Chlorophylls A And B ◽  
Whey Beverages ◽  
Β Carotene

The study assesses the antioxidant activity, total phenolic content, total flavonoids content and lipophilic pigments (β-carotene, chlorophyll a, chlorophyll b) content in homemade and marketed fruit and vegetable whey beverages and fruit and vegetable mousses. All of the tests were performed using spectrophotometric methods. The highest polyphenol content was found in the homemade green whey beverage W1G (541.95 mg/100 g) and the lowest in the market green whey beverage W2G (46.18 mg/100 g). In the fruit and vegetable mousses under study, the highest content of polyphenolic compounds was determined in the red mousse R3 (76.41 mg/100 g). The highest content of flavonoids was observed in the homemade orange whey beverage W1O (63.06 mg/100 g) and in the green mousse G2 (69.80 mg/100 g). The values of the antioxidant activity of whey beverages and mousses varied depending on the composition. The highest content of β-carotene was identified in homemade orange whey beverage (4.36 mg/100 g) and in orange mousses (in range 1.10–2.24 mg/100 g), while chlorophylls a and b—in homemade green whey beverage W1G (3.00 mg/100 g and 1.31 mg/100 g respectively) and in green mousses (chlorophyll a in range 0.54 to 1.42 mg/100 g and chlorophyll b in range 0.13 to 0.32 mg/100 g).

scholarly journals Do AMF and Irrigation Regimes Affect Sweet Pepper Fruit Quality under Open Field Conditions?

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2349
Author(s):  
Renata Nurzyńska-Wierdak ◽  
Halina Buczkowska ◽  
Andrzej Sałata
Keyword(s):  
Vitamin C ◽  
Open Field ◽  
Sweet Pepper ◽  
Temperate Climate ◽  
Morphological Parameters ◽  
Fresh Matter ◽  
Climate Conditions ◽  
Biological Value ◽  
Organic Farm ◽  
Pepper Fruit

The aim of this study was to determine the effect of a mycorrhizal inoculation (AMF) and irrigation regime on certain yield morphological parameters and the biological value of fruits of open field-grown sweet pepper under temperate climate conditions. A study on the Polish hybrid cultivar ‘Roberta F1’ was conducted over the period 2016–2018 in a private certified organic farm. Sweet pepper was harvested at physiological maturity from the second 10 days of August to the first 10 days of October. AMF and irrigation were shown to significantly modify the selected morphological parameters of the peppers. Fruits with the highest weight, length, and width were harvested from AMF-inoculated plants, both irrigated and non-irrigated ones. The chemical composition and antioxidant activity (AA) of pepper fruit extracts were significantly affected by AMF and irrigation. AMF application contributed to a decrease in the percentage of dry matter, vitamin C, reducing sugars, extract, carotenoids, and AA. Irrigation, on the other hand, had a beneficial effect on enhancing the biological value of pepper fruits (except for vitamin C), also increasing their AA. The highest levels of carotenoids (4.64 mg 100 g−1 of fresh matter (FM) were found in the fruits of irrigated plants without AMF, whereas the highest levels of vitamin C (134.10 mg 100 g−1 FM) were accumulated by the fruits of plants grown without AMF and without irrigation.

scholarly journals Pemanfaatan Pupuk Organik Kulit Pisang Dan Azolla Terhadap Pertumbuhan Kangkung Darat Dengan Sistem Akuaponik

2019 ◽  
Vol 12 (01) ◽  
pp. 1-10
Author(s):  
Maria Sastriana ◽  
Ngadiani Ngadiani
Keyword(s):  
Chlorophyll Content ◽  
Chlorophyll A ◽  
Organic Fertilizer ◽  
Control Treatment ◽  
Banana Peel ◽  
Chlorophyll B ◽  
Total Chlorophyll ◽  
Azolla Pinnata ◽  
Randomized Design ◽  
Weight Test

The aim of this study was to compare the organic fertilizer of azolla pinnata and banana peel and a combination of azolla pinnata and banana peel with the same concentration of 800 ppm to the weight of harvest and the chlorophyll content of ground spinach (Ipomoea reptans Poir.). The experiment was carried out experimentally using a completely randomized design with control treatment, 800 ppm azolla pinnata, 800 ppm banana skin and a combination of azolla pinnata and banana peels 800 ppm which were repeated 6 times each. The application was carried out by pouring 800 ppm of azolla pinnata, 800 ppm of banana peel and a combination of azolla pinnata and 800 ppm banana peel on each gutter. The results showed that azolla pinnata and banana peel nutrition had a significant effect (P <0.05) on harvest weight and chlorophyll content of ground spinach plants (Ipomoea reptans Poir.). Nutrition azolla pinnata and banana peel with a concentration of 800 ppm can increase the weight of the land spinach (Ipomoea reptans Poir.) Which has the highest average. In testing the chlorophyll content, the results of chlorophyll a content, chlorophyll b content and the highest total chlorophyll content was found in azolla pinnata 800 ppm nutrition. The results of this study concluded that 800 ppm azolla pinnata, 800 ppm banana peel and 800 ppm combination of azolla pinnata and banana peel in the growth of ground spinach plants (Ipomoea reptans Poir.) Were effective to increase harvest weight and increase chlorophyll content of land spinach (Ipomoea reptans Poir.) Namely chlorophyll a, chlorophyll b and total chlorophyll of land spinach plants (Ipomoea reptans Poir.).   Keywords: ground kale, azolla pinnata, banana peel, harvest weight, test of chlorophyll content, chlorophyll a, chlorophyll b, total chlorophyll.

scholarly journals Effect of nicosulfuron on chlorophyll content of marandu-grass cultivated in crop-forest-livestock integration systems

2020 ◽  
pp. 1876-1882
Author(s):  
Evander Alves Ferreira ◽  
Marcia Vitória Santos ◽  
Leandro Diego da Silva ◽  
Priscila Júnia Rodrigues da Cruz ◽  
Raul Ribeiro Silveira ◽  
...  
Keyword(s):  
Growth Rate ◽  
Chlorophyll Content ◽  
Chlorophyll A ◽  
Dry Matter ◽  
Agroforestry Systems ◽  
Chlorophyll B ◽  
Total Chlorophyll ◽  
Integration System ◽  
Total Chlorophyll Content ◽  
Urochloa Brizantha

The aim of this work was to study the effect of sub-doses of herbicide nicosulfuron on the levels of chlorophyll and growth of marandu-grass in an forest-livestock integration system. The treatments consisted of eucalyptus consortium with sorghum (BRS 655 hybrid) and forage Urochloa brizantha cv. Marandu (marandu-grass) at 12×2 and 12×3 m spacings in agroforestry systems, in addition to sorghum + marandu-grass and marandu-grass in monoculture. The doses of nicosulfuron applied at the marandu-grass were 0, 15 and 30 g ha-1. At 30 and 120 days after the application of nicosulfuron, chlorophyll a and chlorophyll b were measured usinf a portable chlorophyll meter, with six measurements per plant. Afterwards, the total chlorophyll content and chlorophyll a/b were calculated. We also measured the mass of the total dry matter of marandu-grass and growth rate of the culture. Marandu-grass plants cultivated in monoculture showed higher quantities of chlorophyll and the highest growth rates. The levels of chlorophyll a, b and chlorophyll a/b and the growth rate of marandu grass were similar between systems integrated with eucalyptus (12x2 and 12x3 m). The increase of herbicide dose negatively influenced on chlorophyll content in marandu-grass in all treatments evaluated. The use of nicosulfuron in doses of 25 and 50 g L-1 reduced the growth rate of marandu grass only when grown in monoculture

scholarly journals Anatomical and physiological aspects of cucumber graft

2018 ◽  
Vol 9 (2) ◽  
pp. 282-286
Author(s):  
Daniel Baron ◽  
Gustavo Francisco Rosalin Saraiva ◽  
Talita Silveira Amador ◽  
João Domingos Rodrigues ◽  
Rumy Goto ◽  
...  
Keyword(s):  
Experimental Design ◽  
Chlorophyll A ◽  
Chlorophyll B ◽  
Cucurbita Moschata ◽  
Total Chlorophyll ◽  
Cucumis Sativus L ◽  
Tukey Test ◽  
Grafting Technique ◽  
Grafting Through ◽  
Chlorophyll Index

The grafting of two cucumber scions (Cucumis sativus L.)—Taiko hybrid and Tsuyoi hybrid—onto a Tropical hybrid pumpkin rootstock (Cucurbita moschata L.) was studied. The study was conducted in a greenhouse. Plants grafted using the tongue approach grafting technique were compared with ungrafted plants. We evaluated the initial establishment of grafting through anatomical cuts on the region of union graft and examining leaves’ chlorophyll index (SPAD) and their levels of chlorophyll a, chlorophyll b and total chlorophyll. The experimental design utilized randomized blocks and the data were subjected to variance analysis (ANOVA) and the Tukey Test at 5% probability. The results indicate that Taiko cucumber scions are best grafted onto Tropical pumpkin rootstock, since these exhibits early grafting establishment. Moreover, when compared to grafting using Tsuyoi cucumber scions, Taiko cucumber scions present higher SPAD index values and levels of chlorophyll a and total chlorophyll. 

scholarly journals EVALUATION OF SALINITY STRESS EFFECTS ON CHANGES IN PHOTOSYNTHETIC PIGMENTS, HYDROGEN PEROXIDE AND OSMOLYTES IN SENSITIVE AND TOLERANT CULTIVARS OF WHEAT CROP

2020 ◽  
Vol 21 (supplement 1) ◽  
Author(s):  
Rasoul Khodavirdivand Keshtiban ◽  
Hassan Soltanloo ◽  
Seyedeh Sanaz Ramazanpour ◽  
Vahid Shariati ◽  
Vahid Shariati
Keyword(s):  
Hydrogen Peroxide ◽  
Chlorophyll A ◽  
Salinity Stress ◽  
Chinese Spring ◽  
Sampling Time ◽  
Wheat Crop ◽  
Chlorophyll B ◽  
Total Chlorophyll ◽  
Wheat Cultivars ◽  
Total Carbohydrates

Investigation of wheat response to salinity stress can help to better understand the effective defense mechanisms of salinity stress tolerance. For this purpose, biochemical and physiological traits related to salinity tolerance in wheat cultivars were evaluated at Gorgan University of Agricultural Sciences and Natural Resources in 2019. Experimental factors, included two wheat crop cultivars (Sarc and Chinese spring as tolerant and susceptible wheat cultivars, respectively) and sampling time series (zero or control, 24, 48, 72, and 96 h) were examined in a factorial experiment based on a completely randomized design with three replications. Salinity stress was applied with sodium chloride at a concentration of 250 mM to uniform 10-day-old seedlings at the two-leaf stage, followed by sampling of shoot tissue. The studied traits were hydrogen peroxide (H2O2 ), chlorophyll a, chlorophyll b, total chlorophyll, chlorophyllase, carotenoids, proline, and total carbohydrates. Results of analysis of variance (ANOVA) indicated significant effects of genotype, time, and interaction of genotype × time (except H2O2 and total carbohydrates) on all the studied traits. Results of interaction of genotype × time showed although the trend of changes in the studied traits, depending on the type of cultivar and the sampling time were different, but generally, the susceptible Chinese spring cultivar contained higher levels of chlorophyllase and carotenoids than the control time at the end of sampling time and also higher H2O2 levels than the Sarc tolerant cultivar, while the Sarc tolerant cultivar, on the other hand, contained higher levels of chlorophyll a, chlorophyll b, total chlorophyll, and proline than the control time at the end of sampling time and also greater total carbohydrates than the susceptible Chinese spring cultivar. The results confirm the higher capacity of the antioxidant defense system of Sarc tolerant cultivar than the susceptible Chinese spring cultivar. Therefore

scholarly journals Application of Caulerpa racemosa extract as a natural colourant in raw noodles

Food Research ◽  
2021 ◽  
Vol 5 (S3) ◽  
pp. 62-69
Author(s):  
F. Sholicha ◽  
E.N. Dewi ◽  
L. Purnamayati
Keyword(s):  
Tensile Strength ◽  
Chlorophyll A ◽  
Antioxidant Properties ◽  
Consumer Preference ◽  
Total Phenol ◽  
Distilled Water ◽  
Total Chlorophyll ◽  
Caulerpa Racemosa ◽  
Natural Colorant ◽  
Chlorophyll Protein

Caulerpa racemosa is a green macroalga that contains chlorophyll, a natural colorant, which has anti-inflammatory, antibacterial, antiparasitic, and antioxidant properties. This study aimed to determine the effect different concentrations of C. racemosa mixed with distilled water have on raw noodles and to discover the optimal concentration. Fresh C. racemosa was mixed with distilled water into 25%, 50%, and 75% w/v solutions. It was then added to the dough for making noodles, the latter of which were tested in triplicate for colour, total phenol, total chlorophyll, protein, tensile strength, and consumer preference. The C. racemosa extracts had a significant effect (P<0.05) on colour, total phenol, total chlorophyll, protein, and consumer preference, but did not significantly influence tensile strength. Noodles with a 75% C. racemosa concentration were preferred for their attractive green colour.

Acifluorfen Tolerance inLycopersicon

Weed Science ◽  
1992 ◽  
Vol 40 (3) ◽  
pp. 413-417 ◽  
Author(s):  
Jacqueline A. Ricotta ◽  
John B. Masiunas
Keyword(s):  
Free Radical ◽  
Chlorophyll A ◽  
Negative Correlation ◽  
Surface Characteristic ◽  
Chlorophyll B ◽  
Total Chlorophyll

Studies were conducted to determine the mechanism of acifluorfen tolerance within theLycopersicongenus. Absorption of14C-acifluorfen was not correlated with tolerance. There was a negative correlation (r = −0.57) between absorption 24 h after treatment and wax density. No other surface characteristic correlated with absorption. Less than 3% of absorbed14C was translocated and there was no metabolism of acifluorfen. All genotypes were susceptible to paraquat, and acifluorfen-tolerant genotypes had lower levels of ascorbate than susceptible genotypes, implying that free radical protectant systems were not involved in tolerance. Genotypes varied in amounts of chlorophyll a, chlorophyll b, and total chlorophyll but the differences did not correlate to acifluorfen tolerance.

scholarly journals Characterisation of the total phenolic, vitamins C and E content and antioxidant properties of the beebread and honey from the same batch

2020 ◽  
Vol 38 (No. 3) ◽  
pp. 158-163
Author(s):  
Tomasz Sawicki ◽  
Natalia Bączek ◽  
Małgorzata Starowicz
Keyword(s):  
Antioxidant Activity ◽  
Vitamin E ◽  
Vitamin C ◽  
Antioxidant Properties ◽  
Total Phenolic ◽  
Flavonoid Content ◽  
Bioactive Substances ◽  
Reducing Activity ◽  
Phenolic And Flavonoid ◽  
Reducing Potential

The aim of this study was to compare total phenolic and flavonoid content, antioxidant and reducing activity, as well as vitamin C and E content in beebread and honey. The antioxidant activity of samples was determined by photochemiluminescence (PCL) assay, while reducing potential was measured using FRAP and ORAC assays. Vitamin C was analysed by HPLC–MS-TripleTOF method and vitamin E by HPLC-DAD. Beebread was characterised by the higher level of the total phenolic (~90%), flavonoid (~97%), vitamin C (~99%) and E (~98%) as compared to the honey. The data showed that beebread had also higher values of antioxidant activity and reducing potential by ~99% and ~41–98%, respectively, than honey. Our findings indicate that beebread is valuable source of bioactive substances, with the high beneficial properties.

scholarly journals Synthesis, Characterization and Herbicidal Activity of Amide Derivatives of Glyphosate

2018 ◽  
Vol 34 (5) ◽  
pp. 2378-2383 ◽  
Author(s):  
Jatinder Pal Kaur Gill ◽  
Nidhi Sethi ◽  
Anand Mohan
Keyword(s):  
Chlorophyll Content ◽  
Chlorophyll A ◽  
Structure Analysis ◽  
Herbicidal Activity ◽  
Chlorophyll B ◽  
Total Chlorophyll ◽  
Total Chlorophyll Content ◽  
Amide Derivatives ◽  
The Common ◽  
Derivatives Of

The present work includes synthesis of a series of amide derivatives of glyphosate and their characterization. The structure analysis of these new derivatives was done with the help of FTIR and 1H NMR, Further, their herbicidal activity was analyzed on one of the common weeds (Parthenium hysterophorus). Under the influence of amide derivatives of glyphosate it was found that the chlorophyll content (Chlorophyll a, Chlorophyll b and total Chlorophyll content) of the weed was found to lessen than the control. Moreover, these synthesized derivatives are less polar as compared to the parent glyphosate molecule thereby can emphatically reduce the problem of their leaching into the groundwater.

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