scholarly journals Antioxidant Activity of Parijoto Fruit Extract at Various Temperature of Food Processing

2019 ◽  
Vol 3 (1) ◽  
pp. 22
Author(s):  
Rizki Bhakti Pertiwi ◽  
Isti Nurul Hidayah ◽  
Deby Andrianty ◽  
Umar Hafidz Asy'ari Hasbullah
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Food Processing ◽  
Radical Scavenging ◽  
Total Phenolic ◽  
Processing Temperature ◽  
Total Phenolic Compounds ◽  
Fruit Extract ◽  
Tropical Plant ◽  
Effect Of Food

Parijoto (Medinilla speciosa) is a tropical plant that is used as traditional medicine by the community. This fruit contains many bioactive compounds. This study aims to analyze the effect of food processing temperature on the total phenolic compounds and antioxidant activity in parijoto extract. Tests are carried out at temperatures of 10, 30, 60, 75 and 100 ºC. Total phenolic compounds were analyzed by Folin-Ciocalteu method. Antioxidant activity were analyzed by DPPH (1,1-Diphenil-2-pikrilhidrazil) radical scavenging method. The results showed that the increased processing temperature causes a decrease in total phenolic compounds. This causes antioxidant activity to decrease. Processing at low temperatures is able to maintain the content of phenol compounds (33.02 μg/ml) and the greatest antioxidant activity.

Antioxidant Potential and Total Phenolic Compounds of Extracts and Fractions of Pistasia atlantica

2017 ◽  
Vol 9 (04) ◽  
Author(s):  
Somayeh Alidadi ◽  
Mohammad-Taghi Moradi ◽  
Majid Asadi-Samani ◽  
Zahra Lorigooini
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Ethyl Acetate ◽  
Radical Scavenging ◽  
Ethyl Acetate Fraction ◽  
Total Phenolic ◽  
Chloroform Fraction ◽  
Total Phenolic Compounds ◽  
Alcohol Extract ◽  
Ic50 Value

Different parts of Pistasia atlantica have been used in traditional medicine for various purposes in Iran. The aim of this study was to measurement and compare antioxidant activity and polyphenolic compounds of crude ethyl alcohol extract and four fractions of P. atlantica leaf. Crude ethyl alcohol extract of P. atlantica leaf was prepared using maceration method and subjected to fractionation with different polarity. The antioxidant potential of all these fractions was evaluated by the 2,2 diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity method. The total phenolic, flavonoid, and flavonol components were measured with Folin-Ciocaltiue and Chlorid Aluminum methods. According to the radical scavenging capacity, the ethyl acetate fraction exhibited the highest antioxidant activity with IC50 value 1.54±0.12 µg/ml, followed by the chloroform fraction with higher percent inhibition of the DPPH with 3.4±0.11 µg/ml. The results are represented relative to a reference standard, butylated hydroxytoluene (BHT), with IC50 value of 33.5±3.67μg/ml. Among these fractions, the ethyl acetate fraction and chloroform fraction had the highest amount of total phenolic compounds with value of 532.73 and 355.14 mg GAE/g, respectively. The results of this study showed that some fractions of P. atlantica leaf extract could be used as easily accessible source of natural antioxidants

scholarly journals Determination of Antioxidant Properties of 26 Chilean Honeys and a Mathematical Association Study with their Volatile Profile

2012 ◽  
Vol 7 (7) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Elizabeth Sánchez ◽  
Marisa Piovano ◽  
Erika Valdés ◽  
Manuel E. Young ◽  
Cristian A. Acevedo ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Persea Americana ◽  
Total Phenolic ◽  
Volatile Profile ◽  
Total Phenolic Compounds ◽  
Latent Structures

Radical scavenging activity (RSA), antioxidant content (TEAC), total phenolic compounds content (TPCC) and volatile profile (VOCs) were measured in 26 honeys obtained from the Valparaíso Region (Chile). Persea americana honey was the most interesting sample according to these evaluated parameters. A Projection to Latent Structures (PLS) based algorithm was used to model the possible relationship between antioxidant activity, total phenolic compounds content and volatile profile. Concerning the volatile profile, only nine volatile compounds, of a total of fifty, showed dependence on antioxidant activity and total phenolic compounds content.

scholarly journals Bioactive Compounds and Antioxidant Properties of Banana Inflorescence in a Beverage for Maternal Breastfeeding

2020 ◽  
Vol 11 (1) ◽  
pp. 343
Author(s):  
Doungporn Amornlerdpison ◽  
Vachira Choommongkol ◽  
Kanjana Narkprasom ◽  
Susanha Yimyam
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Bioactive Compounds ◽  
Aqueous Extract ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Microbial Pathogens ◽  
Total Phenolic ◽  
Total Phenolic Compounds ◽  
Health Food

Banana inflorescence is consumed as a traditional Thai cuisine for milk lactation in maternal breastfeeding. In this study, the inflorescence of banana (Musa x paradisiaca) was extracted in various solvents to determine the bioactive compounds and antioxidant activity in 2,2′-azino-bis 3-ethylbenzthiazoline-6-sulfonic acid (ABTS) radical scavenging. A suitable extract was developed into a beverage. We compared the results for the amount of total phenolic compounds and the capability of antioxidants obtained in polar and non-polar solvents. The extract in a high-polarity solvent demonstrated high total phenolic compounds and flavonoids. The bioactive compounds of banana inflorescence contained β- sitosterol, flavonoids, saponin, and other phenolic compounds such as catechin and isoquercetin. The aqueous extract of banana inflorescence was developed to act as a primary beverage ingredient. The beverage containing the aqueous extract of banana inflorescence (BAB) exhibited a brownish-yellow color and displayed high acidity and high total phenolic compounds, which are responsible for the antioxidant activity. The food processing of BAB showed no contamination of microbial pathogens. From our results, we concluded that banana inflorescence is a beneficial health food supplement for general consumers. Additionally, the beverage provides convenience and an alternative drink for postpartum mothers who breastfeed for their infants.

scholarly journals Total Phenolic Compounds Extraction in Leaves of Ocimum gratissimum L. and Their Potential Activity against Some Agricultural Contaminants

2020 ◽  
pp. 1-10
Author(s):  
Kporou Kouassi Elisée ◽  
Adela Pintea ◽  
Okou Obou Constantin ◽  
Antonia Odagiu ◽  
N’guessan Jean David ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Phenolic Content ◽  
Radical Scavenging ◽  
Total Phenolic ◽  
Dilution Method ◽  
Total Phenolic Compounds ◽  
Ocimum Gratissimum ◽  
Biological Potential ◽  
Potential Activity

Aims: Phenolic compounds are secondary metabolites that are important in the plant due to their role in plant defense and their antioxidant activity with other biological properties such as antipyretic, analgesic and antimicrobial activities. This study focused on the biological potential activity of total phenolic compounds extracted by soxhlet method from Ocimum gratissimum leaves (Lamiaceae), a popular medicinal plant harvested at Daloa (Côte d’Ivoire). Study Design: Activities were directed on the in vitro antifungal and antioxidant activities combined to phenolic compounds analysis. Place and Duration of Study: The study was carried out at the Department of Environment and Plant Protection, and Laboratory of Chemistry and Biochemistry, University of Agricultural Sciences and Veterinary Medicine (USAMV) between March to July 2014, Laboratory of Biochemistry and Microbiology (Bioactives Natural Substances Unit), Jean Lorougnon Guédé University between September 2014 to January 2015. Methodology: The extract obtained named TPCOG was tested against Fusarium species for its antifungal activity by applying agar slant double dilution method and for its antioxidant activity by DPPH radical scavenging assay. Qualitative and quantitative evaluation of phenolic compounds were carried out by HPLC analysis method with sigma chemical standards. Results: Tests showed that TPCOG was a powerful antifungal extract with MIC and MFC ranging between 3.125 µg/mL to 12.5 µg/mL. This extract was fungicidal and its antioxidant activity reached F= 541.25± .25 mM Trolox/mL (I= 70 ±1.85%) with a total phenolic content equal 195.70±1.33 mg GAE/g. Radical scavenge and antifungal activities correlated very well with total phenolic compounds. Phenolic content analysis showed presence of phenolic acids and flavonoids with a higher concentration for Quercetin (393.475 mg/100 g sample). Conclusion: All this results demonstrated the biological potential activity of total phenolic compounds extracted from leaves of O. gratissimum and the possibility to use it in replace to essential oil for the formulation of biofungicides and nutraceuticals by industries.

scholarly journals A Comparative Analysis of Different Varietal of Fresh and Dried Figs by In Vitro Bioaccessibility of Phenolic Compounds and Antioxidant Activities

2021 ◽  
Vol 25 (1) ◽  
pp. 15-30
Author(s):  
Farida Kehal ◽  
Loucif Chemache ◽  
Makhlouf Chaalal ◽  
Meriem Benbraham ◽  
Esra Capanoglu ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Total Phenolic ◽  
Total Phenolic Compounds ◽  
Gastrointestinal Digestion ◽  
Sun Drying ◽  
Before And After

Abstract Varietal and sun-drying effects on phenolic compounds and their antioxidant activity were investigated during the in vitro gastrointestinal digestion of fresh and dried figs. The total phenolic compounds (phenolic, flavonoids, and proanthocyanidin) and their antioxidant activity (ferric reducing power; free radical scavenging activity DPPH, and phosphomolybdenum test) were evaluated before and after digestion. The total phenolic compounds and the antioxidant capacities of fresh and dried figs obtained before digestion were significantly (p < 0.05) higher than those obtained after digestion. A significant decrease (p < 0.05) of phenolic compounds and their antioxidant activity was observed during different digestion phases (oral phase > gastric phase > intestinal phase). A positive correlation was found between the total phenolic compounds and the antioxidant activity tested for both fresh and dried figs. Furthermore, the results showed that the digestion has no effect on the total phenolic compounds; however, a negative influence of the pH and the enzymes was observed on these compounds and their antioxidant activity. During in vitro gastrointestinal digestion, the varietal and the sun-drying has no significant effect on the phenolic compounds and their antioxidant activity. Likewise, the fresh or dry variety kept a high content before and after the digestion.

scholarly journals TOTAL PHENOLIC COMPOUNDS AND IN VITRO ANTIOXIDATING CAPABILITY OF PEARL PINEAPPLE AND HAWAIIAN PINEAPPLE

2020 ◽  
Vol 17 (34) ◽  
pp. 373-378
Author(s):  
Charles Ivo de OLIVEIRA JÚNIOR ◽  
Gustavo Félix OIVEIRA ◽  
Gláucia Aparecida Andrade REZENDE ◽  
Blyeny Hatalita Pereira ALVES
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Radical Scavenging ◽  
Food Composition ◽  
Ananas Comosus ◽  
Total Phenolic ◽  
Total Phenolic Compounds ◽  
Bioactive Substances ◽  
The City

The pineapple is praised for its aroma, flavor, and nutritional value. Researches of food composition and bioactive substances gained more space in the academic environment due to a more current severe concern of maintaining a healthier lifestyle. The objective of this paper was to quantify the presence of total phenolic compounds and to evaluate the antioxidant activity in vitro in the peel and pulp of two pineapples varieties: the Abacaxi Pérola and Abacaxi Havaiano (Ananas comosus), cultivated and commercialized at the region of the Triângulo Mineiro and Southern of Goiás. This region was chosen due to its geographic proximity to the city of Itumbiara, and for being a region with an outstanding production of the subject two varieties. The content of total phenolic compounds was evaluated using the Folin-Ciocauteau method and the antioxidant activity was assessed using the free radical scavenging method (DPPH • - 2,2-diphenyl-1-picrilhidrazil). The tests showed values of 72.53 to 143.90 mg GAE / 100g for each sample, for the aqueous extract and from 62.04 to 165.47 mg GAE / 100g of sample, the highest values being found for the bark extracts. For the test carried out with DPPH, to check the antioxidant activity of aqueous and hydroethanolic extracts, significant consumption of the DPPH reagent was not observed. The reading was performed for 1 hour without the measured value undergoing substantial changes. Therefore further studies need to be carried out to elucidate the antioxidant activity in pineapples.

scholarly journals New insights of phenolic compounds from optimized fruit extract of Ficus auriculata

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
M. Shahinuzzaman ◽  
Parul Akhtar ◽  
N. Amin ◽  
Yunus Ahmed ◽  
Farah Hannan Anuar ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Total Phenolic ◽  
Fruit Extract ◽  
Optimum Extraction

AbstractIn this study, the extraction conditions extracted maximize amounts of phenolic and bioactive compounds from the fruit extract of Ficus auriculata by using optimized response surface methodology. The antioxidant capacity was evaluated through the assay of radical scavenging ability on DPPH and ABTS as well as reducing power assays on total phenolic content (TPC). For the extraction purpose, the ultrasonic assisted extraction technique was employed. A second-order polynomial model satisfactorily fitted to the experimental findings concerning antioxidant activity (R2 = 0.968, P < 0.0001) and total phenolic content (R2 = 0.961, P < 0.0001), indicating a significant correlation between the experimental and expected value. The highest DPPH radical scavenging activity was achieved 85.20 ± 0.96% at the optimum extraction parameters of 52.5% ethanol (v/v), 40.0 °C temperature, and 22 min extraction time. Alternatively, the highest yield of total phenolic content was found 31.65 ± 0.94 mg GAE/g DF at the optimum extraction conditions. From the LC–ESI–MS profiling of the optimized extract, 18 bioactive compounds were tentatively identified, which may regulate the antioxidant activity of fruits of F. auriculata.

Vegetative propagation, chemical composition and antioxidant activity of yerba mate genotypes

2021 ◽  
pp. 1-10
Author(s):  
Leandro Marcolino Vieira ◽  
Renata de Almeida Maggioni ◽  
Jéssica de Cássia Tomasi ◽  
Erik Nunes Gomes ◽  
Ivar Wendling ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Vegetative Propagation ◽  
Adventitious Rooting ◽  
Ilex Paraguariensis ◽  
Total Phenolic ◽  
Yerba Mate ◽  
Total Phenolic Compounds ◽  
Leaf Retention ◽  
Correlated Components

Abstract Ilex paraguariensis, commonly known as yerba mate, is a tree species native to South America. Its commercial value is due to the manufacturing of teas, with potential also in the pharmacological and cosmetic industries. Vegetative propagation of yerba mate is considered an innovation to the traditional production systems based on sexual propagation. The present study aimed to evaluate the rhizogenic potential and chemical attributes of mini-cuttings from 15 yerba mate genotypes, as well as to verify the correlation between phytochemical and rooting-related variables. Mini-cuttings were collected from a pre-existing mini-clonal hedge and the experimental design was completely randomized, with 15 treatments (genotypes), four replications and 10 mini-cuttings per plot. After 120 days, mini-cuttings were assessed regarding rooting, mortality, callogenesis and leaf retention percentages, percentage of mini-cuttings with both calluses and roots, number of roots and average root length. At the time of collection, subsamples from each plot were used for phytochemical analyses including total phenolic compounds, protein, caffeine and theobromine contents and antioxidant activity. Rooting percentages ranged from 5 to 72.5%, with significant variation among genotypes. Adventitious rooting and phytochemical profile of yerba mate mini-cuttings are genotype-dependent. Leaf retention is a relevant factor in the rooting of yerba mate mini-cuttings and the levels of total phenolic compounds, antioxidants and theobromine present in mini-cuttings are negatively correlated components to Ilex paraguariensis adventitious rooting.

scholarly journals Honeybee Pollen Extracts Reduce Oxidative Stress and Steatosis in Hepatic Cells

Molecules ◽  
2020 ◽  
Vol 26 (1) ◽  
pp. 6
Author(s):  
Juan Esteban Oyarzún ◽  
Marcelo E. Andia ◽  
Sergio Uribe ◽  
Paula Núñez Pizarro ◽  
Gabriel Núñez ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Cell Model ◽  
Radical Scavenging ◽  
Central Zone ◽  
Total Phenolic ◽  
Nonalcoholic Fatty Liver ◽  
Bee Pollen ◽  
Quercetin Concentration

Nonalcoholic fatty liver disease (NAFLD) is a major cause of morbidity and mortality worldwide. Additional therapies using functional foods and dietary supplements have been investigated and used in clinical practice, showing them to be beneficial. Honeybee pollen from Chile has shown a large concentration of phenolic compounds and high antioxidant activity. In this work, we characterized twenty-eight bee pollen extracts from the central zone of Chile according to botanical origin, phenolic profile, quercetin concentration, and antioxidant activity (FRAP and ORAC-FL). Our results show a statistically significant positive correlation between total phenolic content and antioxidant capacity. Selected samples were evaluated on the ability to reverse the steatosis in an in vitro cell model using Hepa1-6 cells. The pollen extracts protected Hepa1-6 cells against oxidative damage triggered by 2,2′-azo-bis(2-amidinopropane) dihydrochloride (AAPH)derived free radicals. This effect can be credited to the ability of the phenolic compounds present in the extract to protect the liver cells from chemical-induced injury, which might be correlated to their free radical scavenging potential. Additionally, bee pollen extracts reduce lipid accumulation in a cellular model of steatosis. In summary, our results support the antioxidant, hepatoprotective, and anti-steatosis effect of bee pollen in an in vitro model.

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