scholarly journals Impact of Chitosan‐ Prunus cerasoides gum exudates on the thermal properties, storage stability and antioxidant activity of anthocyanins from Berberis lycium Royle

2021 ◽  
Author(s):  
Nitisha Sendri ◽  
Vinod Bhatt ◽  
Sarvpreet Singh ◽  
Pamita Bhandari
Keyword(s):  
Antioxidant Activity ◽  
Thermal Properties ◽  
Storage Stability ◽  
Prunus Cerasoides ◽  
Berberis Lycium

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.

Microencapsulation of sour cherry oil by spray drying: Evaluation of physical morphology, thermal properties, storage stability, and antimicrobial activity

2020 ◽  
Vol 364 ◽  
pp. 654-663 ◽  
Author(s):  
Bülent Başyiğit ◽  
Hidayet Sağlam ◽  
Şifanur Kandemir ◽  
Asliye Karaaslan ◽  
Mehmet Karaaslan
Keyword(s):  
Antimicrobial Activity ◽  
Thermal Properties ◽  
Spray Drying ◽  
Storage Stability ◽  
Sour Cherry

scholarly journals Investigation on the Short-Term Aging-Resistance of Thermoplastic Polyurethane-Modified Asphalt Binders

Polymers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1189 ◽  
Author(s):  
Ruien Yu ◽  
Xijing Zhu ◽  
Maorong Zhang ◽  
Changqing Fang
Keyword(s):  
Thermal Properties ◽  
High Temperature ◽  
High Speed ◽  
Storage Stability ◽  
Thermoplastic Polyurethane ◽  
Short Term ◽  
Modified Asphalt ◽  
Aging Resistance ◽  
High Temperature Storage ◽  
Temperature Storage

In this reported work, thermoplastic polyurethane (TPU) was used as a reactive polymer modifying agent to prepare a modified-asphalt, using a high-speed shearing method. Physical performance tests of the TPU-modified asphalt were conducted before and after short-term aging, and the aging resistance was examined by the change in materials properties. In addition, low-temperature rheological properties, thermal properties, the high-temperature storage stability, and the aging mechanism of TPU-modified asphalt were also investigated. The results showed that the addition of TPU improved the aging resistance of base asphalt, which was evidenced by the increased penetration ratio and decreased softening point of the asphalt, after aging. Similarly, Fourier Transform infrared (FTIR) spectroscopy results verified that TPU improved the asphalt aging resistance. It was found that the TPU functional groups played a role in improving thermal properties, high-temperature storage stability, and in the dispersion of modified asphalt.

Evaluation of antioxidant activity of some plant extracts and their heat, pH and storage stability

2007 ◽  
Vol 100 (3) ◽  
pp. 1100-1105 ◽  
Author(s):  
Saeedeh Arabshahi-D ◽  
D. Vishalakshi Devi ◽  
Asna Urooj
Keyword(s):  
Antioxidant Activity ◽  
Plant Extracts ◽  
Storage Stability ◽  
And Storage

scholarly journals Designing a Functional Beverage Blend for Optimal Antioxidant Activity and its Storage Stability

2020 ◽  
Vol 33 (3) ◽  
Author(s):  
Hamza Tariq ◽  
Imran Hayat ◽  
Saima Rafiq ◽  
Aqsa Qayyum ◽  
Sohrab Qayyum
Keyword(s):  
Antioxidant Activity ◽  
Storage Stability

Antioxidant activity of polyphenolic extracts of filamentous fungus Mucor circinelloides (WJ11): Extraction, characterization and storage stability of food emulsions

2020 ◽  
Vol 34 ◽  
pp. 100525 ◽  
Author(s):  
Ahsan Hameed ◽  
Syed Ammar Hussain ◽  
Muhammad Umair Ijaz ◽  
Samee Ullah ◽  
Zafarullah Muhammad ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Filamentous Fungus ◽  
Storage Stability ◽  
Mucor Circinelloides ◽  
Food Emulsions ◽  
And Storage
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