scholarly journals Effect of UV-C Stress on Total Phenolics, Total Flavonoids and Khellin Contents in Ammi visnaga (L.) Lam. Fruits

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Iman Khallaf ◽  
Khalid Mohamed ◽  
Gehad Remeih ◽  
Rania Husseinb ◽  
Osama Ali ◽  
...  
Keyword(s):  
Total Phenolics ◽  
Total Flavonoids ◽  
Ammi Visnaga ◽  
Uv C

scholarly journals RELATIONSHIP BETWEEN ANTIOXIDANT PROPERTIES AND NUTRITIONAL COMPOSITION OF SOME GALACTOPOIETICS HERBS USED IN INDONESIA: A COMPARATIVE STUDY

2016 ◽  
Vol 8 (12) ◽  
pp. 236 ◽  
Author(s):  
Ade Chandra Iwansyah ◽  
Rizal M. Damanik ◽  
Lilik Kustiyah ◽  
Muhammad Hanafi
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Total Phenolics ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Nutritional Composition ◽  
Total Flavonoids ◽  
Wide Range ◽  
Phenolics Content

<p><strong>Objective: </strong>The objectives of this research were to evaluate and compare the antioxidant activity; phenolics and flavonoids contents; and chemical composition of some galactopoietic herbs used in Indonesia and to find a possible relationship between antioxidant activity; phenolics, flavonoids and chemical composition of these plants.</p><p><strong>Methods: </strong>A wide range of analytical parameters was studied, including yield; pH; water activity (a<sub>w</sub>); total color difference; phenolics and flavonoids content; moisture; ash; protein; fat; carbohydrate; fiber; calcium; zinc; magnesium; potassium; iron content; and the data were analyzed by partial least squares (PLS) regression analysis and principal component analysis (PCA) to evaluate the correlation between the parameters and classification of the plants. Folin–cioceltaeu assay, aluminum chloride assay and DPPH scavenging assay were used to evaluate of total phenolics content and free radical scavenging activity of the ethanolic extract of galactopoietic herbs.</p><p><strong>Results: </strong>All of the galactagogue herbs, <em>viz</em>. <em>Plectranthus amboinicus </em>(Lour.) (PA), <em>Sauropus androgynus</em> (SA), <em>Moringa oleifera</em> (MO), and <em>Carica papaya</em> leaves (CP) exhibited good results of TPC, TFC and antioxidant activity. MO contained the highest average of total phenolics content (53.89 mg GAE/g). SA with a ratio of total flavonoids to total phenolics (TF/TP) which is 1.59 contained the highest average of total flavonoids and antioxidant activity (IC<sub>50</sub>), 43.63 mg QE/g and 126.13 μg/ml, respectively, followed by MO&gt;CA&gt;PA. Based on PLS and PCA analysis, antioxidant activity correlated with fat, protein, phenolics content, flavonoids content and pH, but only the total flavonoids content correlated strongly with antioxidant activity.<strong></strong></p><p><strong>Conclusion: </strong>This provides useful data about the studied relationships and chemical patterns in some galactopoietic herbs used and provides a helpful tool for understanding much more about the interpretation of results from the experiments and the mechanism of biosynthesis in plants.</p>

scholarly journals Optimization of Extraction Conditions for Total Phenolics and Total Flavonoids from <i>Kaempferia parviflora</i> Rhizomes

2018 ◽  
Vol 09 (05) ◽  
pp. 205-214 ◽  
Author(s):  
Zuraida Ab Rahman ◽  
Shazwan Abd Shukor ◽  
Hartinee Abbas ◽  
Chandradevan A. L. Machap ◽  
Mohd Suhaimi Bin Alias ◽  
...  
Keyword(s):  
Total Phenolics ◽  
Total Flavonoids ◽  
Kaempferia Parviflora

scholarly journals The Effect of Salicylic Acid on Response to Water Deficit in Basil

2018 ◽  
Vol 2 (1) ◽  
pp. 42
Author(s):  
Adisa Paric ◽  
Erna Karalija
Keyword(s):  
Salicylic Acid ◽  
Photosynthetic Pigments ◽  
Peroxidase Activity ◽  
Total Phenolics ◽  
Stem Length ◽  
Limiting Factor ◽  
Total Flavonoids ◽  
Induced Stress ◽  
Total Flavonoids Content ◽  
Response To Water

Drought-induced stress is the main limiting factor that affects growth and development in plants. In this study, the effect of exogenous application of salicylic acid (SA) on drought tolerance in basil was investigated. The analysis showed that application of SA under drought stress had significant effects on physiological and biochemical parameters, such as photosynthetic pigments content, total phenolics, flavonoids, flavanols and protein content and peroxidise activity, but had no significant effects on the morphological parameters, such as stem length, length and areaof leaves . In drought conditions, total phenolics and peroxidase activity reduced significantly, but all photosynthetic pigments, total flavonoids, flavanols and proteins increased significantly. Application of SA displayed some alleviating effects against drought induced stress through increase of plant growth, total flavonoids content and peroxidase activity

Effect of Hot Air Convection Drying Temperatures on Physical and Chemical Properties of Germinated Sweet Corn

2014 ◽  
Vol 1033-1034 ◽  
pp. 663-668
Author(s):  
Oraporn Bualuang ◽  
Kamonrat Thamphueak
Keyword(s):  
Void Fraction ◽  
Apparent Density ◽  
Sweet Corn ◽  
Total Phenolics ◽  
Reducing Power ◽  
Total Phenolic ◽  
Total Flavonoids ◽  
Moisture Contents ◽  
Hot Air ◽  
Air Convection

The effects of hot air drying temperatures (40-80°C) on apparent density, void fraction, shrinkage, total phenolics, total flavonoids and reducing power in germinated corn were investigated. The physical properties: apparent density, void fraction and shrinkage at moisture contents ranging from 13 to 35% dry-basis were determined using standard techniques. The result found that apparent density and the void fraction were linear in relation to the initial moisture contents. The apparent density increased from 44 to 50 kg/m3. The void fraction decreased from 78 to 58% with increasing moisture content. The chemical property resulted in 40°C hot air convection drying enhances total phenolics and total flavonoids to 6.41% and 50.00%, respectively, when compared with the control. Higher drying temperature resulted in lower total phenolic, total flavonoid content and reducing power of germinated sweet corn compared with the control.

scholarly journals Study on Phenolic Compounds and Effect of Time-Temperature Treatment on Amylase Activities of High Hill Buckwheat in Nepal

2014 ◽  
Vol 8 ◽  
pp. 46-51
Author(s):  
Pradeep Kaji Poudel ◽  
Dhan B. Karki
Keyword(s):  
Phenolic Compounds ◽  
Proximate Composition ◽  
Total Phenolics ◽  
Amylase Activity ◽  
Temperature Treatment ◽  
Fagopyrum Esculentum ◽  
Total Flavonoids ◽  
Germination Time ◽  
Different Temperatures

Two varieties of buckwheat, mithe, Fagopyrum esculentum and tite, Fagopyurum tataricum,were collected from Mustang district, Nepal, and their proximate composition was analyzed. Total flavonoids, Tannin and Total phenolics were significantly higher (p<0.05) in tite than in mithe buckwheat. Samples of Buckwheat were steeped in water for 12 h and germinated for 48, 72, 96, 120, and 144 h at eachtem perature of 15, 20, 23 and 27 ºC. The germination inhibited by stepwise drying from 50 to 80 ºC. Effect of germination time and buckwheat variety on amylase activity was studied. Germination time had a significant effect on amylase activity of buckwheat malts. Tite and mithe buckwheat were grown under four different temperatures at 15, 20, 23 and 27 ºC for 48, 72,96, 120 and 144 h. However, mithe buckwheat was not germinated at 27 ºC. The maximum amylase activity was observed at 23ºC for 96 h. At this temperature mithe and tite buckwheat had alpha and beta amylase activity 13.87 and 268.97 units/gdry malt and 13.18 and 275.96 units/g dry malt,respectively. Due to high amylase activity of tite buckwheat was selected and malted in bulk quantity. DOI: http://dx.doi.org/10.3126/jfstn.v8i0.11749 J. Food Sci. Technol. Nepal, Vol. 8 (46-51), 2013

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