scholarly journals Investigation of Antioxidant Activity and Physicochemical Properties of Local and Branded Honeys in Sindh, Pakistan

2020 ◽  
pp. 43-50
Author(s):  
Muhammad Farooque Lanjwani ◽  
Fayaz Ahmed channa
Keyword(s):  
Electrical Conductivity ◽  
Antioxidant Activity ◽  
Natural Products ◽  
Physicochemical Properties ◽  
Honey Bees ◽  
Antioxidant Activities ◽  
International Markets ◽  
Human Consumption ◽  
Average Value

The honey is a sweetest natural products because it have unique properties, which honey bees are collect from dissimilar plants materials. The honey is used as a nutritional purposes for human consumption and also use for medicinal and industrial purposes. The honey also an important product in the international markets. The present study was conducted to analyzed the physicochemical and antioxidant activities of different honey samples in Sindh Pakistan. The 15 honey samples were analyzed for parameters including pH, electrical conductivity, moisture, viscosity, ash%, density and antioxidant activity. The average value of pH was founded 3.78 electrical conductivity 2492 μs/cm, viscosity 12.34 mpa, moisture 15.99%, density 0.78 and average value of antioxidant activity was founded 19.12 mg/100g.

scholarly journals Correlation Study of Honey Regarding their Physicochemical Properties and Sugars and Cyclitols Content

Molecules ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 34 ◽  
Author(s):  
Ileana Andreea Ratiu ◽  
Hossam Al-Suod ◽  
Małgorzata Bukowska ◽  
Magdalena Ligor ◽  
Bogusław Buszewski
Keyword(s):  
Electrical Conductivity ◽  
Antioxidant Activity ◽  
Statistical Analysis ◽  
Physicochemical Properties ◽  
Sugar Content ◽  
Correlation Study ◽  
Osmotic Effect ◽  
Defensive Role ◽  
Wide Range ◽  
Comprehensive Study

Honey is a natural sweetener, with an osmotic effect on microorganisms due to the increased sugar content and low amount of water. Cyclitols are minor constituents of honey. They play a defensive role in plants against unfavorable environmental conditions. Honey’s physicochemical properties can vary, resulting in a wide range of colors, flavors, scents, antioxidant activity, dissimilar values of pH, acidity, electrical conductivity, etc. Some literature regarding correlation between honey types is already available, but a comprehensive study displaying an ample evaluation of multifarious aspects is still needed. This study focuses on the correlation between 18 honey types, originating from 10 countries, collected during four years, summarizing a total of 38 samples. A total of 6 physicochemical properties and 18 target components (sugars and cyclitols) were considered as variables. A correlation analysis is presented between the investigated parameters and between honey types, together with the statistical analysis which allowed for observation of the clusters’ distribution according with the investigated variables.

scholarly journals Honey drinks

2020 ◽  
Author(s):  
Leonora Adamchuk ◽  
Ján Brindza ◽  
Kateryna Lypko
Keyword(s):  
Electrical Conductivity ◽  
Antioxidant Activity ◽  
Honey Bees ◽  
Physicochemical Parameters ◽  
Alcoholic Beverage ◽  
Total Dissolved Solids ◽  
Sambucus Nigra ◽  
Carbohydrate Source ◽  
Biological Value ◽  
Varied History

Honey as a multi-component substance made by honey bees is a carbohydrate source and contains flavonoid compounds that act as antioxidants and may have ergogenic properties. As an ancient activity in Ukraine, using honey in the production of honey drinks has a long and varied history. Despite its very long tradition, only a few honey drink recipes have been preserved, so this study aims at valorizing honey-based beverages from Ukraine. Honey use in the nonalcoholic and alcoholic beverage category is diverse, performing flavor, functional, and wellness roles. Moreover, some of the accessed physicochemical parameters of elderberry (Sambucus nigra L.) tea with honey including pH, total dissolved solids, and antioxidant activity were measured in the study and the results showed increased acidity, electrical conductivity, and total mineralization of tea with honey that may indicate an improvement in the biological value of beverages when using honey.

scholarly journals Comparison of the Antioxidant Activity of Malaysian Ginger (Zingiber officinale Roscoe) Extracts with that of Selected Natural Products and its Effect on the Viability of Myoblast Cells in Culture

2021 ◽  
Vol 50 (5) ◽  
pp. 1445-1456
Author(s):  
Nur Fatin Nabilah Mohd Sahardi ◽  
Faizul Jaafar ◽  
Siti Nor Asyikin Zakaria ◽  
Jen Kit Tan ◽  
Mariam Firdhaus Mad Nordin ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Natural Products ◽  
Moringa Oleifera ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Centella Asiatica ◽  
Butylated Hydroxytoluene ◽  
Therapeutic Effects ◽  
Antioxidant Power ◽  
Ficus Deltoidea

Ginger has been proven to possess various therapeutic effects, including antibacterial, anticancer, anti-inflammatory, and antioxidant effects. However, data on the comparison of ginger antioxidant activity with that of other natural products are still lacking. This study aimed to analyse and compare the antioxidant properties of two types of Malaysian ginger extracts (GE1 and GE2) with that of selected natural products. The antioxidant activities were measured by 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH) and ferric reducing antioxidant power (FRAP) assays, while cell viability was determined by 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfonyl)-2H-tetrazolium (MTS) assay. The order of the DPPH scavenging activities was as follows: vitamin C > palm tocotrienol-rich fraction (TRF) > á-tocopherol > N-acetylcysteine (NAC) > Ficus deltoidea > butylated hydroxytoluene (BHT) > Centella asiatica > GE2 > GE1 > Moringa oleifera > Kelulut honey; the order of the mean FRAP value was as follows: NAC > á-tocopherol > BHT > TRF > Ficus deltoidea > Moringa oleifera > GE2 = GE1 > Centella asiatica > Kelulut honey. The viability assays showed that both ginger extracts significantly increased the percentage of viable cells (p < 0.05). In conclusion, neither of the ginger extracts was cytotoxic toward cells and both possessed comparable antioxidant properties, indicating their potential for ameliorating oxidative stress.

scholarly journals Phytochemistry and Antioxidant Activities of the Methanolic Leaf Extract of Clerodendrum splendens (Lamiaceae)

2018 ◽  
pp. 12-20
Author(s):  
Nganso Ditchou Yves Oscar ◽  
Amang A Ngoung GA ◽  
Soh Desire ◽  
Simo Nemg Fredy Brice ◽  
Nyasse Barthelemy
Keyword(s):  
Antioxidant Activity ◽  
Natural Products ◽  
Secondary Metabolites ◽  
Vitamin C ◽  
Leaf Extract ◽  
Antioxidant Activities ◽  
Maximum Activity ◽  
Hepatic Lipids ◽  
Ic50 Value ◽  
Ic50 Values

This paper aimed at studying the antioxidant efficacy of the methanolic leaf extract of Clerodendrum splendens, a plant of the Lamiaceae family. Phytochemical tests carried out on extracts of Clerodendrum splendens leaves have been able to detect the presence of secondary metabolites such as Flavonoids, Tannins, Saponins and Terpenoids. The results of the antioxidant activity have shown that CSF2, CSF3 fractions and CSB, CSG fractions similarly inhibited hepatic lipids but significantly less than vitamin C. Compared to all fractions, the CSB fraction shows the best inhibitor on the peroxidation of hepatic lipids because at 150 μg/mL, there is a maximum activity (2.5 μg/mL of protein). However, it is found that CSF3, CSF2 and CSG have higher IC50 values than vitamin C (5.613±0.117) while CSEB, CSB and CSC fractions showed lower IC50 values than vitamin C, which is used as the reference reducing compound. The lower the IC50 value compared to vitamin C, the greater the antioxidant capacity of the plant extract. The results of this study suggest that Clerodendrum splendens represents an untapped source of compounds with potential antioxidant activity that could be explored in the development of new therapeutic natural products.

scholarly journals Chemical Compounds, Physicochemical Properties, and Antioxidant Activity of A. cardamomum Leaves and Rhizomes Oils on Different Distillation Time

2020 ◽  
Vol 11 (1) ◽  
pp. 35-40
Author(s):  
Rini Pujiarti ◽  
Aisyah Kusumadewi
Keyword(s):  
Antioxidant Activity ◽  
Physicochemical Properties ◽  
Antioxidant Activities ◽  
Optical Rotation ◽  
Chemical Properties ◽  
Acid Number ◽  
Water Steam ◽  
Main Compound ◽  
Physico Chemical ◽  
Dpph Method

Amomum cardamomum is a local cardamom that grows widely and recently developed as and agroforestry crops in Indonesia. Its seeds, leaves and rhizomes are sources of essential oil. Essential oils from cardamom have many benefits for health and flavouring agent. The objectives of this study were to elucidate the yield, chemical composisition, physico-chemical properties, and antioxidant activities of leaves and rhizomes oils of cardamom were distillated using water-steam distillation for 4, 6, and 8 hours. The chemical composition were analyzed by GC-MS, physicochemical properties were analyzed used ISO standard and antioxidant activity were analyzed by DPPH method. The results showed that A. cardamomun oils yield between 0.06-0.33%. The main compound in the oils is 1,8-cineole with the highest percentage was obtained from cardamom rhizomes oil was distillated for 6 hours (60.63%). The results of each sample almost have the same quality with specific gravity between 0.899 – 0.909; refractive index between 1.476-1.478; optical rotation between (+)2.05⁰-(+)2.38⁰; miscibility in 70% alcohol between 1:7-1:9; and acid number between 0.49-0.69. The leaves and rhizomes oils of A. cardamomum showed potent antioxidant activity with the highest antioxidant were obtained from cardamom rhizomes oil were distillated for 8 hours with IC50: 0.039 g/ml.

scholarly journals Antimicrobial activity and physicochemical properties of Balanites aegyptiaca seed oil

2021 ◽  
Vol 12 (4) ◽  
pp. 450-453
Author(s):  
Abdalla Gobara Habieballa ◽  
Halima Elfadel Alebead ◽  
Madena Komi Koko ◽  
Awad Salim Ibrahim ◽  
Asha Fadllallah Wady
Keyword(s):  
Antimicrobial Activity ◽  
Antioxidant Activity ◽  
Physicochemical Properties ◽  
Seed Oil ◽  
Antimicrobial Properties ◽  
Acid Value ◽  
Butylated Hydroxytoluene ◽  
Human Consumption ◽  
Balanites Aegyptiaca ◽  
Percentage Yield

This study was aimed to assess the antibacterial and antifungal activities of Balanites aegyptiaca seed oil and characterize the physicochemical properties. Seeds were collected from the local central market, Khartoum-Sudan (2019). The samples were dried under shade and grinded, then the oil was extracted with a Soxhlet extractor using n-hexane. The percentage yield of the extract was found to be 25.64%. The seed oil was tested against Pseudomonas aeruginosa (G-), Escherichia coli (G-), Bacillus subtilis (G+), Staphylococcus aureus (G+), and Candida albicans to assess their antimicrobial properties. The extract of B. aegyptiaca seed oil has antimicrobial activity against most of the organisms tested. The fatty acid profile of the B. aegyptiaca seed oil was analyzed by GC/MS. The results revealed that the presence of five fatty acids, including saturated linoleic acid, oleic acid, and unsaturated palmate and stearic acids, also a unique antioxidant compound butylated hydroxytoluene. The physiochemical properties of the seed oil showed that the oil contained kinetic viscosity (57 cp), density (0.917 g/cm3), refractive index (1.472), acid value (49.96 mg/kg), saponification value (248.75 mg/g), ester number (234.79 mg/kg) and peroxide number (0.02 mg/kg). Through physiochemical analysis, it was found that oil can be used for human consumption due to the percentage yield of unsaturated acids (81%). In addition, the results of the antioxidant activity of the seeds oil showed that the seed oil had moderate antioxidant activity.

scholarly journals Evaluation and Comparative Study of the Nutritional Profile and Antioxidant Potential of New Quinoa Varieties

2019 ◽  
pp. 1-11 ◽  
Author(s):  
Gabriela Silvina Razzeto ◽  
María Angelina Uñates ◽  
José Elías Rojas Moreno ◽  
Romina Viviana Lucero López ◽  
Elba Graciela Aguilar ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Chenopodium Quinoa ◽  
Dry Weight ◽  
Antinutritional Factors ◽  
Nutritional Composition ◽  
Human Consumption ◽  
Antioxidant Compounds ◽  
Total Phenol Content ◽  
Β Carotene

Aims: Quinoa (Chenopodium quinoa) is an ancient crop known for its high nutritive potential. The goal of the present work is to study the nutritional composition, identify some antinutritional factors and antioxidant compounds, and evaluate their antioxidant activity in four advanced lines of quinoa seeds obtained in experimental plots. Methodology: For this purpose, proteins, total lipids, fiber, moisture, ash and carbohydrates, as well as fatty acid composition and mineral content, were determined in whole meal flours of these advanced lines. The presence of trypsin inhibitors, saponins, nitrates, oxalates and phytate was also evaluated, as well as total phenols and antioxidant activity. Results: These new quinoa varieties have good nutritional properties, with high protein content in comparison to cereals. In this work, the analysis of proximate and mineral profile of quinoa showed that this pseudocereal has a similar profile but significantly higher than rice, a traditional cereal. Quinoa is a rich source of magnesium, iron, manganese, copper and molybdenum, which are elements that are deficient in almost all gluten-free cereals. The tests performed on the evaluated antinutrient compounds resulted within the acceptable values for human consumption. The seed extract showed a total phenol content between 43.42 ± 1.35 and 25.82 ± 1.47 mg of gallic acid equivalent/100 g dry weight (P= .05). The antioxidant activities were estimated by DPPH, β carotene and nitric oxide scavenging activity. The results of the methanolic extract were, in average, 88.95 for %DPPH, 26.56 for %β carotene, and varied between 85.82 ± 8.32 to 22.20 ± 1.80 for %NO (P= .05). Conclusion: Therefore, it can be concluded that the new quinoa lines obtained in the central-west region of Argentina, which present agronomic advantages, are safe for human consumption and beneficial due to the content of nutrients and bioactive compounds that exert protection against many diseases.

scholarly journals Fruit Pomological, Phytochemical Characteristic and Mineral Content of Rosehip Genotypes

2020 ◽  
pp. 18-23
Author(s):  
Nihal Acarsoy Bilgin ◽  
◽  
Adalet Mısırlı ◽  
Fatih Şen ◽  
Bilge Türk ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Natural Products ◽  
Vitamin C ◽  
Mineral Content ◽  
Antioxidant Activities ◽  
Total Phenol ◽  
High Demand ◽  
Nutrition And Health ◽  
Mineral Contents

Rosehips, which are commonly grown in nature in shrub form, are always popular due to their importance in terms of nutrition and health. Because fruits are rich in vitamin C, total phenol and mineral contents and antioxidant activities. Nowadays, there is high demand for natural products. Rosehip grows spontaneously in Turkey. In this study, 9 individuals were examined. Consequently, significant differences were stated according to genotypes for pomological and phytochemical characteristics. Vitamin C, phenol and antioxidant activity were found to affect P and Zn nutrients. Additionally, it was detected that P, K, Ca, Mg, Na Fe, Cu, Zn and Mn contents ranged in 0.09-0.17%, 1.35-1.86%, 1.05-1.44%, 0.43-069%, 50.00-100.00 ppm 28.50-48.30 ppm, 3.30-7.00 ppm, 8.06-12.56 ppm and 50.85-85.35 ppm, respectively. In this context, one of the genotypes has been found promising due to its content.

Changes in physicochemical properties and antioxidant activity of fermented kepayang (Pangium edule Reinw.) seeds

Food Research ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 47-58
Author(s):  
N.H. Mustaffer ◽  
N.S. Ramli ◽  
K. Tongkhao ◽  
K. Vangnai ◽  
N.K. Rosni ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Physicochemical Properties ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Ph Value ◽  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Water Extract ◽  
Total Phenolic ◽  
Crude Fibre

One method for processing Pangium edule Reinw. seeds for consumption is fermentation. The aim of this study was to determine the physicochemical characteristics of P. edule Reinw. seeds during fermentation and antioxidant activity of the extracts. P. edule Reinw. seeds were boiled for 2 hrs and subjected to spontaneous fermentation for 40 days. The physicochemical properties were evaluated according to AOAC methods. Raw and fermented P. edule Reinw. seeds (day 40) were dried and extracted using ethanol and distilled water. The antioxidant activity was measured using 2,2-diphenyl-1- dipicrylhydrazyl (DPPH) radical scavenging assay while total phenolic content was measured by following the Folin-Ciocalteu method. The results showed that there were no significant differences in water activity while the pH value was decreased along fermentation days. The TSS was significantly increased from day 0 (11.00) to day 30 (19.50), however, it drastically decreased to 11.50 after 40 days of fermentation. The value of lightness (L*) parameter was decreased from 66.44 to 25.28 on day 40 but no significant differences for a* and b* parameter. For proximate analysis, the percentage of ash, crude protein, crude fat, and crude fibre were significantly increased while moisture content and carbohydrate were significantly decreased throughout the fermentation days. Besides, the highest DPPH activity was observed in the ferment-water extract at concentration 10 mg/mL which about 95.61% while the highest total phenolic content was obtained from the ferment-ethanol extract (173.79 mg GAE/100 mg). In conclusion, there were some changes in the physicochemical properties of P. edule Reinw. seeds during fermentation and potentially has antioxidant activities. The results of this study might be used as basic information to develop the fermented seeds as a functional food.

scholarly journals FTIR analysis and quantification of phenols and flavonoids of five commercially available plants extracts used in wound healing

2016 ◽  
Vol 21 (3) ◽  
pp. 767-779 ◽  
Author(s):  
Renata Nunes Oliveira ◽  
Maurício Cordeiro Mancini ◽  
Fernando Cabral Salles de Oliveira ◽  
Thayse Marques Passos ◽  
Brid Quilty ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Wound Healing ◽  
Natural Products ◽  
Phenolic Compounds ◽  
Antioxidant Activities ◽  
The Other ◽  
Ftir Analysis ◽  
Flavonoid Content ◽  
Dragon’S Blood ◽  
Brazilian Propolis

ABSTRACT Natural products are used in wound healing in order to prevent infection. Propolis is a well known antimicrobial with phenolic compounds and flavonoid content which vary according to the propolis origin. Besides propolis (from both Brazilian and UK sources), pomegranate, dragon's blood and sage are possible antimicrobials to be used in biomaterials. The goal of this work was to analyze the amount of phenols and flavonoid compounds in these natural products, their antioxidant activities and the bonds present by FTIR. The FTIR analysis revealed the presence of active compounds in all drug samples. The phenols quantification showed that Brazilian propolis was rich in phenols compared to the other drugs, followed by pomegranate and UK propolis. UK propolis was the most rich in flavonoids, which is expected on account of its origin. Pomegranate, UK propolis and Dragon's blood presented the highest antioxidant activity. All samples presented antioxidant activity > 82%.

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