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Potential of karamunting (Rhodomyrtus tomentosa) fraction against kidney damage in diabetic rats

100%

Saleh M. I., Hidayat R., Febriyanto G., Parisa N.

Herba Polonica

|

2021

|

tom 67

|

nr 2

2

The use of fruit extracts for production of apple chips with enhanced antioxidant activity

86%

Tarko T., Duda-Chodak A., Semik-Szczurak D.

Roczniki Państwowego Zakładu Higieny

|

2017

|

tom 68

|

nr 2

Background. Style and pace of life make consumers more willing to reach for snack products. This group of processed food includes, among others, fruit chips. Due to the increasing incidence of diseases associated with the excessive exposure to free radicals foods enriched with antioxidant compounds, eg. polyphenols, can be introduced into the sale. Objective. The aim of the study was to use the fruit extracts for the production of apple chips with enhanced antioxidant activity. Material and methods. ‘Golden Delicious’ variety of apple fruit was used to produce chips. Apple chips were prepared by slicing, soaking in a sugar solution and pre-drying in a microwave oven. Chips were enriched with extracts prepared from fruits of chokeberry, five-flavor berry, Cornelian cherry, woodland hawthorn, goji berry, Japanese quince and cranberry microcarpa. For this purpose, pre-dried apple slices were soaked (5 min) in ethanolic extract of fruits and then dried to achieve a 5% moisture content. Chips were sensory evaluated and their antioxidant activity and total polyphenols content were determined. Results. All enriched apple chips were characterized by high antioxidant activity and a relatively high value of total polyphenols content. Chips soaked in extracts of five-flavor berry, cranberry and goji berry were characterized by the highest antioxidant potential. Samples obtained by using chokeberry and Cornelian cherry extracts showed the highest content of polyphenols. High sensory attractiveness of enriched chips was also showed. The chips with the addition of fiveflavor berry extract were exceptions. Their taste was not acceptable. Conclusions. Fruit extracts are a valuable material for chips enrichment. Taking into account all the analyzed differentiators, extracts of Japanese quince, goji berry and woodland hawthorn were found to be the best enriching additives. The chips soaked in extract of five-flavor berry, despite their high antioxidant activity, were disqualified due to very low score of sensory evaluation.

3

Content of selected antioxidative compounds in green asparagus depending on processing before freezing and on the period and conditions of storage

86%

Gebczynski P.

Polish Journal of Food and Nutrition Sciences

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2007

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tom 57

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nr 2

209-214

The content of antioxidative compounds was evaluated in frozen green asparagus produced with the traditional technology from the material blanched before freezing or with the modified technology from cooked asparagus. Compared with blanched asparagus, the product cooked before freezing contained more dry matter and polyphenols, similar amounts of beta-carotene, less carotenoids and vitamin C and its antioxidative activity was lower. During a 12-month storage at -20°C and -30°C a steady decrease in the level of the analysed constituents was observed in frozen products prepared for consumption. Compared with the raw material, asparagus prepared for consumption after the 12-month period of refrigerated storage contained 56–62% of vitamin C; 55–71% of polyphenols; 73–81% of beta-carotene; 74–89% of carotenoids while its antioxidative activity was reduced to 65–73%. In products obtained using the modified method the level of the analysed constituents was similar or a little higher than in the traditional products. Frozen products stored at -30°C were usually characterised with a higher content of analysed constituents and a higher level of the antioxidative activity in comparison with frozen asparagus stored at -20°C. Sensory quality of traditional frozen products slightly exceeded that of frozen products obtained using the modified method. The quality of products stored at -30°C was also better than that of products stored at -20°C.

4

Optimization of antioxidant compounds extraction from grape stem by pressurized liquids using response surface methodology

72%

Jaime L., Nieto J. A., Santoyo S., Amador B., Prodanov M., Reglero G.

Polish Journal of Food and Nutrition Sciences

|

2011

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tom 61

|

nr Suppl.1

5

The effect of triacontanol on shoot multiplication and production of antioxidant compounds in shoot cultures of Salvia officinalis L.

72%

Grzegorczyk I., Bilichowski I., Mikiciuk-Olasik E., Wysokinska H.

Acta Societatis Botanicorum Poloniae

|

2006

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tom 75

|

nr 1

11-15

This report describes the effect of triacontanol on shoot multiplication and production of antioxidant compounds (carnosic acid, carnosol and rosmarinic acid) in S. officinalis cultures grown on MS basal medium (agar solidified medium supplemented with 0.1 mg l-1 IAA, 0.45 mg l-1 BAP). It was found that shoot proliferation significantly increased when triacontanol at concentrations of 5, 10 or 20 µg l-1 was added to the medium. HPLC analysis of acetone and methanolic extracts of sage shoots showed that the production of diterpenoids, carnosic acid/carnosol ratio, as well as, contents of rosmarinic acid were also affected by the treatment with triacontanol. The highest stimulation effect of triacontanol was observed on the production of carnosol, where the treatment with 20 µg l l-1 increased the content of this diterpenoid 4.5-fold compared to that in the control (sage shoots growing on MS basal medium, only).

6

The effect of methyl jasmonate on production of antioxidant compounds in shoot cultures of Salvia officinalis L.

72%

Grzegorczyk I., Wysokinska H.

Herba Polonica

|

2009

|

tom 55

|

nr 3

238-243

The shoots of Salvia officinalis growing in MS liquid medium supplemented with IAA 0.1 mg l-1) and BAP (0.45 mg l-1) were treated with methyl jasmonate (MeJA) to increase production of compounds with antioxidant activity (carnosic acid, carnosol and rosmarinic acid). The increase in metabolite production depended on MeJA concentration, the period of exposure to elicitor and type of compound. The MeJA action was observed 24 h after elicitation. It was found that the maximum level of diterpenoids, calculated as the sum of CA and Car (about 8 mg g-1 dry wt) was achieved at 3 days after elicitation with 20 µM methyl jasmonate. The highest amount of rosmarinic acid (about 41 mg g-1 dry wt) was achieved with 50 or 100 μM methyl jasmonate on the 5th day after elicitation. It was almost 2-fold higher compared to the control (cultures treated with only ethanol).

7

The comparison of antioxidant compounds and mineral content in some pomegranate (Punica granatum L.) genotypes grown in the East of Turkey

72%

Okatan V., Colak A. M., Guclu S. F., Gundogdu M.

Acta Scientiarum Polonorum. Hortorum Cultus

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2018

|

tom 17

|

nr 4

In recent times, pomegranate has been one of Turkey’s most important commercial fruit crops for consumption and export. In this study, the chemical composition of pomegranate (Punica granatum L.) fruits grown in the central area of Bitlis province (Eastern Turkey) was investigated. For this purpose, total phenolic content, ascorbic acid content, total anthocyanin and antioxidant activity and minerals content were evaluated. The highest total phenolic contents were determined in 13BIT1 (6477.78 mg gallic acid equivalents 100 g–1 fresh matter). The highest ascorbic acid was determined in 13BIT2 of pomegranate genotype (60.78 mg 100 g–1). Radical scavenging activity (DPPH) were determined between 13BIT18 (78.15) to 13BIT1 (31.49). Total anthocyanin of genotypes was measured between 13BIT19 (156.03) to 13BIT17 (55.37), respectively. The highest mineral compositions of the pomegranate genotypes were 998.00% N, 301.00 mg 100 g–1 P, 1708.61 mg 100 g–1 K, 55.21 mg 100 g–1 Ca, 116.79 mg 100 g–1 Mg, 5.1 mg 100 g–1 Fe, 1.91 mg 100 g–1 Cu, 0.41 mg 100 g–1 Mn and 1.20 mg 100 g–1 Zn, respectively. The results indicate that pomegranate genotypes have an important value of health and nutrition for the human.

8

Antioxidant compounds in Salvia officinalis L. shoot and hairy root cultures in the nutrient sprinkle bioreactor

72%

Grzegorczyk I., Wysokinska H.

Acta Societatis Botanicorum Poloniae

|

2010

|

tom 79

|

nr 1

7-10

The study focused on the production of compounds with antioxidant activity in hairy root and shoot cultures of Salvia officinalis grown in laboratory-scale sprinkle nutrient bioreactors. HPLC analysis showed that production of rosmarinic acid in transformed roots (34.65±1.07 mg l-1) was higher that in shoot culture (26.24±0.48 mg l-1). In the latter diterpenoids: carnosic acid (1.74±0.02 mg l-1) and carnosol (1.34±0.01 mg l-1) were also found. Biomass accumulation after a growth period in the bioreactor was also studied. An 18-fold increase in hairy root biomass was recorded after 40 days of culture. In sage shoot culture, biomass increased 43 times after 21 days of bioreactor run. The current operating conditions of the bioreactor were not suitable for the propagation of Salvia officinalis mainly due to the hyperhydricity problem of leaves and stems.

9

In vitro cultures of Salvia officinalis L. as a source of antioxidant compounds

72%

Grzegorczyk I., Bilichowski I., Mikiciuk-Olasik E., Wysokinska H.

Acta Societatis Botanicorum Poloniae

|

2005

|

tom 74

|

nr 1

The concentrations of carnosic acid, carnosol and rosmarinic acid in different materials from differentiated (multiple shoot cultures and regenerated plants) and undifferentiated (callus and cell suspension) in vitro cultures of Salvia officinalis were determined by HPLC. The results suggested that diterpenoid (carnosic acid and carnosol) production is closely related to shoot differentiation. The highest diterpenoid yield (11.4 mg g-1 for carnosic acid and 1.1 mg g-1 for carnosol) was achieved in shoots of 10-week-old micropropagated plants. The levels were comparable to those found in shoots of naturally growing plants. Undifferentiated callus and cell suspension cultures produced only very low amounts of carnosol (ca. 0.05 mg g-1 of dry weight). In contrast, content of rosmarinic acid in callus and suspension cultures as well as shoots growing in vitro and in vivo was similar and ranged between 11.2 and 18.6 mg g-1 of dry weight.

10

Liquid shoot culture of Salvia officinalis L. for micropropagation and production of antioxidant compounds; Effect of triacontanol

72%

Grzegorczyk I., Wysokinska H.

Acta Societatis Botanicorum Poloniae

|

2008

|

tom 77

|

nr 2

Liquid shoot culture of Salvia officinalis L. in MS medium containing IAA (0.1 mg l-1) and BAP (0.45 mg l-1) was developed and evaluated in relation to shoot multiplication and antioxidant compound (carnosic acid, carnosol and rosmarinic acid) accumulation. In the liquid medium, on average, 3 new shoots per explant (shoot tip) were obtained within 3 weeks. The shoots produced 8.2±0.02 mg of diterpenoids and 31.2±0.29 mg of rosmarinic acid per gram of dry weight. Shoot proliferation and diterpenoid content increased when triacontanol (5, 10 or 20 pg l-1) was added to the liquid medium. In optimum conditions (at 20 pg l-1 TRIA) almost 7 shoots were formed per explant after 3 weeks. An increase in diterpenoid production (expressed as the sum of carnosol and carnosic acid) ranged from 30% to 50% and dependended on triacontanol concentration tested. The level of diterpenoids in triacontanol-treated shoots was similar to the content of compounds in commercial herbal product (dried leaves of S. officinalis) (10-12 mg g-1 dry wt). Triacontanol did not increase rosmarinic acid production, but the content of the phenolic as compound in shoots grown in liquid culture (31 mg g-1 dry wt) was even 24 times higher compared to samples of dried leaves of S. officinalis plants. We also demonstrated that the highest amounts of CA, Car and RA were accumulated in young, top parts of sage shoots. This observation could be useful for improving the selection of material for the extraction of natural antioxidants from S. officinalis.

11

Betacyanin accumulation and guaiacol peroxidase activity in Beta vulgaris L. leaves following copper stress

58%

Morales J. M. L., Rodriguez-Monroy M., Sepulveda-Jimenez G.

Acta Societatis Botanicorum Poloniae

|

2012

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tom 81

|

nr 3

The effect of copper stress on betacyanin accumulation and guaiacol peroxidase (GPOD) activity in leaves of different age was evaluated in red beet (Beta vulgaris L. var. Crosby Egyptian) plants. In hydroponic culture, plants were treated with 0.3 μM (control), 50 μM, 100 μM, and 250 μM of CuSO4 for 6 days. Copper was taken up and accumulated in old roots but was not translocated to leaves. However in young leaves, the increase of lipid peroxidation and reduction of growth were evident from day 3 of copper exposure; whereas in old leaves, the lipid peroxidation and growth were the same from either copper-treated or control plants. In response to copper exposure, the betacyanin accumulation was evident in young leaves by day 3, and continued to increase until day 6. Betacyanin only were accumulated in old leaves until day 6, but the contents were from 4 to 5 times lower than those observed in young leaves at the same copper concentrations. GPOD activity increased 3.3- and 1.4-fold in young and old leaves from day 3 of copper treatment respectively, but only in the young leaves was sustained at the same level until day 6. Old roots shown betacyanin in the control plants, but the betacyanin level and growth were reduced with the copper exposure. In contrast, young roots emerged by copper effect also accumulated copper and showed the highest betacyanin content of all plant parts assayed. These results indicate that betacyanin accumulation and GPOD activity are defense responses to copper stress in actively growing organs.

12

Healing properties of berries

58%

Wojdylo A.

Polish Food

|

2009

|

nr 1

13

Total antioxidant capacity as an important element in the assessment of soil properties for the production of high-quality agricultural and horticultural raw materials with health-promoting properties

44%

Skwarylo-Bednarz B.

Acta Agrophysica

|

2019

|

tom 26

|

nr 2

Ograniczanie wyników

Potential of karamunting (Rhodomyrtus tomentosa) fraction against kidney damage in diabetic rats

The use of fruit extracts for production of apple chips with enhanced antioxidant activity

Content of selected antioxidative compounds in green asparagus depending on processing before freezing and on the period and conditions of storage

Optimization of antioxidant compounds extraction from grape stem by pressurized liquids using response surface methodology

The effect of triacontanol on shoot multiplication and production of antioxidant compounds in shoot cultures of Salvia officinalis L.

The effect of methyl jasmonate on production of antioxidant compounds in shoot cultures of Salvia officinalis L.

The comparison of antioxidant compounds and mineral content in some pomegranate (Punica granatum L.) genotypes grown in the East of Turkey

Antioxidant compounds in Salvia officinalis L. shoot and hairy root cultures in the nutrient sprinkle bioreactor

In vitro cultures of Salvia officinalis L. as a source of antioxidant compounds

Liquid shoot culture of Salvia officinalis L. for micropropagation and production of antioxidant compounds; Effect of triacontanol

Betacyanin accumulation and guaiacol peroxidase activity in Beta vulgaris L. leaves following copper stress

Healing properties of berries

Total antioxidant capacity as an important element in the assessment of soil properties for the production of high-quality agricultural and horticultural raw materials with health-promoting properties