Evaluation of physicochemical, structural, and antioxidant properties of microencapsulated seed extract from Securigera securidaca by co-crystallization method during storage time

2021 ◽  
pp. 102090
Author(s):  
Ali Behnamnik ◽  
Mohsen Vazifedoost ◽  
Zohreh Didar ◽  
Bahareh Hajirostamloo
Keyword(s):  
Storage Time ◽  
Antioxidant Properties ◽  
Seed Extract ◽  
Crystallization Method ◽  
Securigera Securidaca

IOP Lowering Effects of Ocimum basilicum Seed Extract in Two Rabbit Models of Ocular Hypertension

2019 ◽  
Vol 4 (1) ◽  
pp. 39
Author(s):  
Renu Agarwal ◽  
SK Gupta ◽  
Sushma Srivastava ◽  
Rohit Saxena
Keyword(s):  
Ocular Hypertension ◽  
Antioxidant Properties ◽  
Ocimum Basilicum ◽  
Seed Extract ◽  
Water Loading ◽  
Antiglaucoma Medication ◽  
Lowering Effect ◽  
Significant Difference ◽  
The Mean ◽  
And Control

Introduction: Ocimum basilicum (OB), a herb known for its antihypertensive, anticholinesterase and antioxidant properties was investigated for possible intraocular pressure (IOP) lowering effects in rabbits with ocular hypertension (OHT). Methods: The IOP lowering effect of a single drop of OB extract (OBE) was evaluated in oculonormotensive rabbits using three concentrations (0.25, 0.5 and 1% w/v). The concentration showing maximum IOP reduction was further evaluated in rabbits with water-loading and steroid-induced OHT. Results: IOP lowering effect of OBE 0.5% in oculonormotensive rabbit eyes was significantly greater compared to OBE 0.25% (p<0.05) but was comparable (p>0.05) to OBE 1%. Therefore, 0.5% concentration was selected for further evaluation. Pretreatment with OBE (0.5%) caused significantly lower increase in IOP after water loading amounting to 23.39% above baseline as compared to 54.00% in control eye, 15 minutes post water loading. At 60 minutes, post water loading, mean IOP rise was 95.12% and 63.58% in control and test eyes, respectively. Significant difference between the mean IOP of two eyes persisted during the 2nd hr. In rabbits with steroid induced OHT, OBE 0.5% produced a mean IOP reduction of 24.73% at the end of first hr and the mean peak IOP reduction of 31.63% was observed at the end of 2 hr. A significant difference between the IOP of test and control eyes persisted from 1 to 6 hr. Conclusions: Ocimum basilicum seed extract showed significant IOP lowering effect in rabbits with water loading and steroid induced OHT, however, its utility as an effective antiglaucoma medication needs further investigations.

Effects of Greek Pomegranate Extracts in the Antioxidant Properties and Storage Stability of Kefir

2019 ◽  
Vol 15 (4) ◽  
pp. 437-441 ◽  
Author(s):  
Vasiliki Lagouri ◽  
Georgia Dimitreli ◽  
Aikatarini Kouvatsi
Keyword(s):  
Antioxidant Activity ◽  
Dairy Products ◽  
Storage Time ◽  
Storage Stability ◽  
Flow Behavior ◽  
Antioxidant Properties ◽  
Flow Behavior Index ◽  
Ph Values ◽  
Dpph Activity ◽  
Behavior Index

Background: Oxidation reactions are known to shorten the shelf life and cause damage to foods rich in fat, such as dairy products. One way to limit oxidation and increase the shelf life of fermented dairy products is to use natural antioxidants. The aim of this study was to examine the effect of adding pomegranate extracts in the antioxidant properties, rheological characteristics and the storage stability of the fermented product of kefir. Methods: The Pomegranate Juice (PGJ) and Peel Extracts (PGPE) (5%, 10% w/v) were added to kefir and the antioxidant properties were evaluated by using the methods of radical scavenging activity (DPPH) and Ferric Reducing Antioxidant Power Activity (FRAP). Spectrophotometric and instrumental methods were used to determine the Total Phenols (TPs), pH values, viscosity and flow behavioral index values of enriched with pomegranate kefir samples. The same properties were tested when kefir samples stored at 4°C for 7, 14, 21 and 28 days. Results: The addition of PGJ and PGPE results in an increase in the antioxidant activity (DPPH, FRAP) and total phenol content (TPs) of kefir samples. Increasing the concentration of the added PGJ and PGPE, results in an increase in the TP content and the DPPH activity of kefir. As far as the storage time is concerned, the results showed an increase in the amount of TP at 7th day and a reduction in the DPPH activity in the 14th day of storage. In contrary to the DPPH method, the increase in storage time has resulted in a reduction in antioxidant activity by the FRAP method. The addition of PGJ and PGPE in kefir results in a decrease in pH values while the pH of kefir samples increased during storage at 4°C for 28 days. The addition of PGJ and PGPE to kefir samples results to a decrease in viscosity and an increase in the flow behavior index. Increasing storage time results in increased flow behavior index of kefir samples. Conclusion: The addition of PGJ and PGPE increased the antioxidant activity and total phenols of the kefir product and preserved its properties during the total storage time of 28 days at 4°C.

scholarly journals In Vitro Antioxidant and Antiproliferative Efficacy of Abrus Precatorius Seed Extracts on Hep2c Cells and its Inhibitory Efficacy with Receptors of Cervical Carcinoma

2022 ◽  
Author(s):  
Amritpal Kaur ◽  
Yash Sharma ◽  
Kamran Waidha ◽  
Madhumita P Ghosh ◽  
Anoop Kumar ◽  
...  
Keyword(s):  
Tannic Acid ◽  
Herbal Remedy ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Seed Extract ◽  
Total Phenolic ◽  
Cervix Carcinoma ◽  
Abrus Precatorius ◽  
Ic50 Value ◽  
Seed Extracts

Abstract Abrus precatorius is a widely distributed tropical medicinal plant with several therapeutic properties, however its seed extract has not been studied against cervical cancer (CaCx) till date. Herein, we have assessed the antioxidant and antiproliferative properties of A. precatorius seed extracts (ethyl acetate and 70% ethanol) prepared from different extraction methods (Soxhlet and maceration) against human cervix carcinoma cells (Hep2C). We observed a significantly higher total flavonoid content of APE (sox) i.e.,112.7±0.127 mg Quercetin Equivalent/g of extract than others; total phenolic content of APA (mac) seed extract was higher i.e.,108.53±0.089 mg Quercetin Equivalent/g of extract and total tannin content of APA (sox) was higher i.e., 98.98± 0.011 mg tannic acid equivalents/g of extract. In addition, tannic acid, rutin and piperine were identified in extracts by HPLC. Furthermore, APA (sox) exhibited the highest radical scavenging activity with an IC50 value of 14.49±0.93µg/ml. APE (mac) showed the most significant antiproliferative activity with IC50 value of 85.90±0.93µg/mL against Hep2c cells. SOD and GST activity was observed as highest in the APA(Mac) extract whereas the catalase activity and GSH content was maximum in the APE(Mac) extract. Further, the MDA content was observed to be the least in APE(Mac) extracts. Docking results suggested maximum binding energy between tannic acid and Her2 receptor compared to doxorubicin (standard). This study provides evidence that A. precatorius seed extracts possess promising bioactive compounds with probable anticancer and antioxidant properties against CaCx which might be utilized as a possible herbal remedy aimed at restricting tumor growth.

scholarly journals The influence of selected preservation methods and storage time on the content of antioxidants in blackthorn (Prunus spinosa L.) fruits

2019 ◽  
Vol 74 (1) ◽  
pp. 53-62
Author(s):  
KATARZYNA OLESIŃSKA ◽  
DANUTA SUGIER ◽  
ŁUKASZ SĘCZYK
Keyword(s):  
Room Temperature ◽  
Storage Time ◽  
Antioxidant Properties ◽  
Iron Ions ◽  
Polyphenol Content ◽  
Total Polyphenols ◽  
Dried Fruits ◽  
Prunus Spinosa ◽  
Freeze Dried ◽  
And Storage

The aim of the study was to determine the influence of selected methods of preservation and storage time on the content of antioxidants in blackthorn fruit (Prunus spinosa L.). Preserved fruits were stored for 13 and 26 weeks without light at room temperature (freeze-dried and convection dried) and at –20°C (frozen samples). It was shown that both the method of preservation and the storage time had significant influence on the content of polyphenols (anthocyanins, flavonoids, total polyphenols) and antioxidant properties (Fe3+ reduction strength) of blackthorn fruit. As the storage time progressed, the anthocyanins content decreased in all preservation variants. In the case of frozen fruit after 26 weeks of storage, the content of flavonoids (by 12.5%), total polyphenols (by 48%) and the ability to reduce the iron ions were increased (by 55%). In turn, in the dried fruits after this period, the anthocyanins content, the polyphenol content and reduction strength were reduced. The highest values of the parameters evaluated after the assumed storage time has been demonstrated in lyophilizates.

scholarly journals Effect of particle size of blueberry pomace powder on its properties

2018 ◽  
Author(s):  
Noelia Betoret ◽  
Laura Calabuig-Jiménez ◽  
Cristina Barrera ◽  
Lucia Seguí
Keyword(s):  
Particle Size ◽  
Environmental Impact ◽  
Water Retention ◽  
Storage Time ◽  
Antioxidant Properties ◽  
Fibre Content ◽  
Total Phenols ◽  
Emulsifying Properties ◽  
Effect Of Particle Size ◽  
Emulsifying Capacity

Producing dried powders from blueberry pomace allows to reduce its environmental impact and gives value to this waste material. This work aims to evaluate the effect of particle size (fine or coarse) of blueberry pomace dried at 70 ºC on its fibre content and main physicochemical properties, including antiradical capacity, total phenols and anthocyanins content, hydration and emulsifying properties. The effect of storage on antioxidant properties was also evaluated. Results showed a significant effect of particle size on fibre content and consequently, on water retention, holding and emulsifying capacity of the powder. Neither phenols nor anthocyanins were affected by particle size or storage time. Keywords: blueberry pomace, powders, fibre, antioxidant properties.

scholarly journals review of black seed extract as an agent in the wound healing process

2021 ◽  
Vol 1 (2) ◽  
pp. 87-96
Author(s):  
Muhammad Hakeem Mohd Zaid ◽  
Muhammad Faezuddin Hanafi ◽  
Muhammad Salahuddin Haris
Keyword(s):  
Wound Healing ◽  
Nigella Sativa ◽  
Healing Process ◽  
Antioxidant Properties ◽  
Microscopic Analysis ◽  
Seed Extract ◽  
Flowering Plant ◽  
Wound Healing Process ◽  
Black Cumin ◽  
Black Seed

Introduction: Nigella Sativa or Black Cumin is an annual flowering plant that can be used for wound treatment. In the treatment for wound healing, this plant contains many beneficial components that can help with the treatment but this plant utilisation in the medical field is still limited. This review will provide an overview of the advantages when this plant is used in the wound healing treatment. Method: The review was based on the ROSES protocol, and the databases used were ScienceDirect, PubMed, and Google Scholar. After the search, only 11 papers had been chosen to be included in the results and they were divided into four main themes that were used for the analysis of the results. Results: The themes were gross analysis, microscopic analysis, biochemical analysis and antimicrobial analysis. Conclusion: In conclusion, the black seed extract contains several valuable properties, such as antimicrobial and antioxidant properties, which help improve the wound healing process. Further study needs to be done to discover more potential of Nigella Sativa in treating the wound.

scholarly journals Evaluation of antioxidant properties of lemon verbena (Lippia citriodora) essential oil and its capacity in sunflower oil stabilization during storage time

2018 ◽  
Vol 6 (4) ◽  
pp. 983-990 ◽  
Author(s):  
Reza Farahmandfar ◽  
Maryam Asnaashari ◽  
Mehdi Pourshayegan ◽  
Sara Maghsoudi ◽  
Hannaneh Moniri
Keyword(s):  
Essential Oil ◽  
Sunflower Oil ◽  
Storage Time ◽  
Antioxidant Properties ◽  
Lippia Citriodora ◽  
Lemon Verbena
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