scholarly journals Development of low sodium salted eggs and its antioxidant potential

2018 ◽  
Vol 5 (2) ◽  
pp. 51 ◽  
Author(s):  
Setyaningrum Ariviani ◽  
Nur Hikmah Fitriasih ◽  
Dwi Ishartini
Keyword(s):  
Total Phenolic Content ◽  
Leaf Extract ◽  
Sensory Quality ◽  
Phenolic Content ◽  
Antioxidant Potential ◽  
Total Phenolic ◽  
Main Process ◽  
Leaf Extracts ◽  
Low Sodium ◽  
Sensory Qualities

<p class="Body"><strong><em>ABSTRACT</em></strong></p><p class="Body"><strong><em>Background:</em></strong><em> Salted egg is one of processed egg products which has a nutrient content that is comparable to the fresh egg, has a longer shelf life and can be consumed by all ages. The main process in the salted egg production is salting (NaCl) treatment that will give salty taste and acts as a preservative.</em></p><p class="Body"><strong><em>Objectives: </em></strong><em>This study aimed to develop low-sodium salted eggs with an antioxidant potential through the innovations in the salting process.</em></p><p class="Body"><strong><em>Methods:</em></strong><em> This was an experimental research. Salted eggs were produced with innovations in salting process using various concentration of teak leaf extract and potassium chloride (KCl) substitution. The sensory qualities of the salted eggs were determined using differential tests. Salted eggs with the best sensory quality were determined their nutritional quality with proximate measurements and their antioxidative potency by measuring total phenolic content and antioxidant activity</em></p><p class="Body"><strong><em>Results:</em></strong><em> The research result showed that the KCl substitution did not affect the total phenolic content (TPC) of salted eggs, but it reduced the sensory qualities which include the quality of taste, color, flavor and overall. The addition of teak leaf extracts improved both the sensory quality and TPC of salted eggs produced with KCl substitutions. TPC  increased along with increased of teak leaf extract concentrations. KCl substitution or addition of teak leaves extract proved to increase the radical scavenging activity of salted eggs. The low-sodium salted egg with an antioxidant potential which was made using selected salting formulation had nutritional and sensory qualities which comparable to the salted eggs produced using sodium chloride (NaCl)</em></p><p class="Body"><strong><em>Conclusions</em></strong><em>: The low-sodium salted eggs have antioxidant potential that can be produced by salting process innovation using teak leaf extract and KCl substitution.</em></p><strong>KEYWORDS<em>:  </em></strong><em>salted egg, KCl, teak leaf extracts, antioxidants, sensory</em>

scholarly journals Effect of Microencapsulation Techniques on Physical and Chemical Characteristics of Functional Beverage Based on Red Betel Leaf Extract (Piper crocatum)

2020 ◽  
Vol 23 (8) ◽  
pp. 276-282
Author(s):  
Mega Safithri ◽  
Susi Indariani ◽  
Rosalina Yuliani
Keyword(s):  
Antioxidant Activity ◽  
Total Phenolic Content ◽  
Leaf Extract ◽  
Sensory Quality ◽  
Phenolic Content ◽  
Total Phenolic ◽  
Betel Leaf ◽  
Functional Drink ◽  
Physical And Chemical

Functional drinks based on red betel leaf extract have antioxidant activity, but they still have a bitter taste. This study aims to determine the effect of microencapsulation on phenol content, antioxidant activity, and sensory quality of functional drinks based on betel leaf extract. Microencapsulation of functional drinks was made using maltodextrin coatings with concentrations of 10% and 20%. Antioxidant activity was tested by the CUPRAC method. The ready to drink (RTD) functional drink has a total phenolic content and antioxidant activity of 782.30 ± 2.54 mg GAE/g and 1660.19 ± 31.67 µmol Tr/g, respectively. These values are higher than microencapsulated functional drinks with maltodextrin (MM). The microencapsulated functional drink with 10% maltodextrin coating (MM10) is the chosen formulation since it has the smallest particle size (1.283 µm), total phenolic content of 12.90 ± 0.01 mg GAE/g and antioxidant activity of 189.41 ± 1.88 µmol Tr/g. Microencapsulated functional drinks provide sensory quality that is not significantly different (p <0.05) from ready to drink (RTD) drinks.

Antioxidant capacity of hydroalcoholic extracts of Grewia serrulata DC and Grewia nervosa (Lour.) Panigrahi

2018 ◽  
Vol 9 (1) ◽  
pp. 121
Author(s):  
Mentham Ramesh ◽  
Chandu Babu Rao
Keyword(s):  
Total Phenolic Content ◽  
Superoxide Radical ◽  
Phenolic Content ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Total Flavonoid ◽  
Antioxidant Potential ◽  
Total Phenolic ◽  
Total Flavonoid Content ◽  
Flavonoid Content

The current investigation is intended to evaluate the content of phytochemical constituents and antioxidant potential of hydroalcoholic extracts of stem and root of Grewia serrulata DC (HAESGS & HAERGS) and leaf and bark of Grewia Nervosa (Lour.) panigrahi (HAELGN & HAEBGN). Initially, all the extracts at different concentrations were estimated for their total phenolic content and total flavonoid content. The study was further extended for their antioxidant potential evaluation using various in vitro methods such as 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radical, hydroxyl radical and superoxide radical scavenging assays. The total phenolic content (mg gallic acid equivalent per gram of extract) was high in HAELGN (170.82±0.19) and HAERGS (123.00±0.48) than HAESGS (111.2±0.26) and HAEBGN (119.60±0.23). The total flavonoid content (mg quercetin equivalent per gram) is greater in HAERGS (71.24±0.50) and HAESGS (65.68±0.27) than HAELGN (55.82±0.35) and HAEBGN (62.38±0.45). The IC50 values (µg/ml) of different plant extracts inferred that DPPH radical scavenging activity is greater in HAELGN (42.91±0.88) and HAEBGN (53.87±0.35) than HAESGS (126.73±1.20) and HAERGS (88.87±1.25). However, hydroxyl and superoxide radical scavenging activity is more in HAERGS (135.41±1.19 & 88.00±1.42) and HAELGN (172.28±1.91 & 108.163±1.09) than HAESGS (237.3±1.65 & 110.074±0.87) and HAEBGN (204.7±1.04 & 125.54±1.07). The results of present comprehensive analysis demonstrated that both the plants Grewia serrulata DC and Grewia Nervosa (Lour.) panigrahi possess high phenolic, flavonoid contents and potential antioxidant activity, and could be used as a valid source of natural antioxidants and might be utilized for pharmacological screening of various therapeutic activities. Keywords: Grewia serrulata; Grewia Nervosa; Total Phenolic content; Total flavonoid content; Antioxidant potential

scholarly journals Spectrophotometric determination of sun protective factor (SPF) and antioxidant potential of different solvent extracts of graptophyllum pictum

2019 ◽  
Vol 10 (SPL1) ◽  
Author(s):  
Noor Diyana Ibrahim ◽  
Wan Nur Farihah Che Mustafa ◽  
Mahendran Sekar ◽  
Khor Poh Yen ◽  
Seow Lay Jing
Keyword(s):  
Total Phenolic Content ◽  
Methanol Extract ◽  
Phenolic Content ◽  
Total Flavonoid ◽  
Antioxidant Potential ◽  
Aluminium Chloride ◽  
Total Phenolic ◽  
Uv Spectrophotometry ◽  
Total Flavonoid Content ◽  
Flavonoid Content

Natural substances extracted from plants have been gaining attraction as protective agents due to their safety and responsible for multiple biological effects on skins. The present study was to determine the total phenolic and flavonoid contents, Sun Protection Factor (SPF), and antioxidant potential of different solvent extracts of Graptophyllum pictum leaves. The dried powdered leaves were extracted by the cold maceration method, using three different solvents, i.e., methanol, ethanol, and water. The extracted leaves was tested for antioxidant activity using of DPPH (1,1-diphenyl-2-picryl-hydrazyl). Total phenolic content was determined using the Follin-Ciocalteu and for total flavonoid content with used the aluminium chloride. The SPF of all extracts were analyzed by ultraviolet (UV) spectrophotometry. The total phenolic content is the highest in methanol extract (377.61±0.31 µg/ml), and total flavonoid content is the highest in ethanol extract (158.06 ± 0.18 µg/ml). For DPPH free radical scavenging activity, ethanolic extract showed the maximum percentage of inhibition, and for SPF, methanol extract had displayed the highest. The study recommends that methanol is a good solvent for the extraction of sun-protective constituents from G. pictum.

scholarly journals Pharmacognostical, Phytochemical, Antioxidant and Antimicrobial Activity of Costus woodsonii

2019 ◽  
pp. 53-59
Author(s):  
Mukesh S Sikarwar ◽  
Chew Khai Szeek ◽  
Neeraj Paliwal
Keyword(s):  
Antimicrobial Activity ◽  
Antioxidant Activity ◽  
Plant Extract ◽  
Total Phenolic Content ◽  
Leaf Extract ◽  
Phenolic Content ◽  
Total Phenolic ◽  
Phytochemical Analysis ◽  
Concentration Test ◽  
Antioxidant And Antimicrobial Activity

Background: Herbal medicine mostly contains wide range of chemical compounds responsible for medicinal therapeutic use. Costus woodsonii is commonly called as Red Button Ginger and synonyms of the botanical name are Costus spiralis, Alpinia spiralis and Costus pisonis. In Malay, it is known as Setawar Halia Merah. In Chinese, it is known as Hong Bi Qiao Jiang. Objective: This research was conducted to study the pharmacognostical, phytochemical, antioxidant and antimicrobial activity of C. woodsonii leaf extracts. Method: Macroscopy, microscopy, phytochemical analysis, thin layer chromatography, antioxidant activity and antimicrobial activity of C. woodsonii leaf were carried out. Total flavonoids were estimated in the leaf extract. The total phenolic content of C. woodsonii leaf was determined using Folin-Ciocalteu reagent. The antioxidant activity of leaf extract of C. woodsonii was determined by performing DPPH radical scavenging. The microbial activity was determined by Well diffusion test, MIC (Minimum Inhibitory Concentration) test and MBC (Minimum Bactericidal Concentration) test. Result and Discussion: C. woodsonii belongs to costaceae with elliptical green leaves. Till now are no extensive studies on C. woodsonii. Preliminary phytochemical analysis revealed the presence of flavonoid, steroid, fat, phenol, tannin and mucilage in leaf extract. Physicochemical studies further revealed the ash value of leaf as 8.7%. Among the three extractions, alcohol extractive values showed the highest as 13%. Loss on drying at 105 degree Celsius in leaf was found to be 12.67%. The plant extract showed total phenolic content of 7.941 mg GAE/g at concentration of 5µg/ml. As for flavonoids content, plant extract showed 21.7 mg RE/g at concentration of 200µg/ml and 43.4 mg RE/g at concentration of 400µg/ml. For antioxidant activity, the plant extract showed weak antioxidant activity in DPPH scavenging activity assay. For antimicrobial test, the leaf extract of C. woodsonii showed weak antimicrobial activity. Conclusion: From this study, it can conclude that C. woodsonii leaf extract possess weak antioxidant activity and weak antimicrobial activity which need to be further validated by using more antioxidant assays and antimicrobial tests.

Phytochemical Evaluation and In-vitro Antioxidant Potential of whole plant of Caralluma adscendens

2021 ◽  
pp. 2774-2778
Author(s):  
Divya Yada ◽  
T. Sivakkumar ◽  
M. Sudhakar
Keyword(s):  
Nitric Oxide ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Ethanolic Extract ◽  
Antioxidant Potential ◽  
Total Phenolic ◽  
Flavonoid Content ◽  
Antioxidant Power ◽  
Whole Plant

The current line of investigation was focused at perusing the presence of phytochemical constituents, investigation of total phenol and flavonoid content, the antioxidant potential of various extracts of Caralluma adscendens whole plant using various in-vitro assays. The dried plant powder was extracted with various solvents based on polarity (Pet ether, Chloroform, Ethyl acetate, Ethanol and Aqueous) by hot continuous extraction in Soxhlet's apparatus and Extracts were dried. Phytoconstituents present in each extract was examined by performing preliminary phytochemical screening. Total Phenolic Content (TPC), Total Flavonoid Content (TFC) and Antioxidant potential for crude extracts were studied by DPPH, nitric oxide scavenging and FRAP methods. The total phenolic content and flavonoid content of Ethanolic extract of plant was found to be 80.08±0.629mg and 70.88±1.170mg of GAE and Quercetin equivalents respectively. The Ethanolic extract exhibited potent antioxidant activity as determined by 2,2-diphenyl-1-picrylhydrazyl(DPPH), nitric oxide scavenging and ferric reducing antioxidant power assays(FRAP) than the other extracts. The IC50 values for the Ethanolic extract of Caralluma adscendens was found to be 214.765±0.224 µg/ml and 215.928±0.506µg/ml by DPPH and nitric oxide scavenging assays respectively.

LC-MS/MS profiles and interrelationships between the enzyme inhibition activity, total phenolic content and antioxidant potential of Micromeria nervosa extracts

2020 ◽  
Vol 328 ◽  
pp. 126930
Author(s):  
Cengiz Sarikurkcu ◽  
Jacqueline Cosmo Andrade ◽  
Mehmet Sabih Ozer ◽  
João Marcos Ferreira de Lima Silva ◽  
Olcay Ceylan ◽  
...  
Keyword(s):  
Enzyme Inhibition ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Antioxidant Potential ◽  
Total Phenolic ◽  
Inhibition Activity

scholarly journals Variety and Year Impact on Phenolic Content of Arkansas-Grown Sweetpotato Leaves

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 371-371
Author(s):  
Josue Bolanos ◽  
Sun-Ok Lee ◽  
Luke Howard ◽  
Cindi Brownmiller ◽  
Shahidul Islam ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Chlorogenic Acid ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Statistical Significance ◽  
Radical Scavenging ◽  
Dry Weight ◽  
Antioxidant Potential ◽  
Total Phenolic

Abstract Objectives Sweetpotato leaf (SPL) is a natural source of phenolic compounds with potential utility as an antioxidant. The study aimed to measure the impacts of the years on SPL total phenolic content and antioxidant capacity and to identify and quantify the individual phenolic compounds. Methods Sweetpotato leaves in 2018 (27 varieties) and 2019 (24 varieties) were grinded and lyophilized. Phenolic compounds were extracted with 70% ethanol from SPLs. Total phenolic content was determined by Folin-Ciocalteu method and antioxidant potential was determined by DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging assay. Five SPL samples with statistically highest antioxidant capacity were identified and quantified by HPLC. All statistical analyses were carried out by SAS software using ANOVA. Statistical significance was accepted at P &lt; 0.05. Results The average of total phenolic contents in 2018 SPL samples was 43 ± 13 mg gallic acid equivalent (GAE)/g dry weight (DW) SPL whereas in 2019, it was 53 ± 9 mg GAE/g dry weight SPL. Antioxidant capacity in 2018 was 110 ± 75 µmol Trolox equivalent (TE)/g dry weight SPL whereas in 2019, it was 132 ± 32 µmol TE/g dry weight SPL. SPL1 had the highest antioxidant potential, followed by SPL9, SPL3, SPL28, and SPL11 (P &lt; 0.05). The concentrations of major identified phenolics from the five SPL samples (#1, 9, 3, 28, and 11) in dry weight of SPL were: chlorogenic acid at 3.05 ± 0.35 mg/g, 5-monocaffeoylquinic acid (CQA) at 0.71 ± 0.06 mg chlorogenic acid equivalent (ChAE)/g, 4-CQA at 0.99 ± 0.07 mg ChAE/g, 3,4-diCQA at 1.22 ± 0.18 mg ChAE/g, 3,4,5-triCQA at 1.2 ± 0.18 mg ChAE/g, and 3,5-diCQA at 15.5 ± 4.05 mg ChAE/g. 3,5-diCQA, the predominant phenolic, was present in the highest amounts in SPL1. Conclusions The results showed that sweetpotato leaves collected in 2019 contained higher total phenolics and antioxidant capacity than the ones collected in 2018. Phenolic compounds have strong antioxidant activity in Arkansas-grown sweetpotato leaves. This study warrants further investigation of sweetpotato leaves to be utilized as an antioxidant. Funding Sources The work was supported by USDA-NIFA.

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