Total Phenolics, Flavonoids, and Antioxidant Activity of Sage (Salvia officinalis L.) Plants as Affected by Different Drying Methods

2012 ◽  
Vol 6 (3) ◽  
pp. 806-817 ◽  
Author(s):  
Ibtissem Hamrouni-Sellami ◽  
Fatma Zohra Rahali ◽  
Iness Bettaieb Rebey ◽  
Soumaya Bourgou ◽  
Ferid Limam ◽  
...  
2013 ◽  
Vol 141 (3) ◽  
pp. 2649-2655 ◽  
Author(s):  
Dalbir Singh Sogi ◽  
Muhammad Siddiq ◽  
Ibrahim Greiby ◽  
Kirk D. Dolan

2016 ◽  
Vol 12 (4) ◽  
pp. 395-409 ◽  
Author(s):  
Wittawat Trirattanapikul ◽  
Singhanat Phoungchandang

Abstract Gac fruit (Momordica cochinchinensis L.) pulp is high in carotenoids and fiber; however, it is discarded during process. Both maturity stages of matured gac fruit could be used in the drying experiments. Gac fruit pulp was dried by different drying methods including tray drying (40–60 °C), heat pump-assisted dehumidified drying (40–60 °C), microwave drying (450–900 W), mixed-mode solar drying and freeze drying. The Modified Henderson model presented the best fit of desorption isotherms. New model proposed was the best drying model. Quality evaluation by β-carotene, lycopene, lutein, total phenolics and antioxidant activity revealed that heat pump-assisted dehumidified drying at 60 °C provided the highest lutein, total phenolics and antioxidant activity and could reduce drying time by 25 % and increased lutein, total phenolics and antioxidant activity by 12.6 %, 32.0 % and 0.3 %, respectively and is more promising drying method for gac fruit pulp.


Planta Medica ◽  
2007 ◽  
Vol 73 (09) ◽  
Author(s):  
C Cruz ◽  
MG Miguel ◽  
MTF Simões ◽  
AC Figueiredo ◽  
JG Barroso ◽  
...  

2011 ◽  
Vol 57 (No. 1) ◽  
pp. 19-29 ◽  
Author(s):  
A.A. Hassanain

Sage plants (Salvia officinalis L.) were dried in the passive dryers in different times of the year. Different passive solar dryers were used to achieve the socio-economical benefits from drying the medicinal plants growing in Sinai area. Drying sage plants might be a source to increase the Bedouin income instead of cannabis or marijuana, especially if it is exported abroad. Four drying methods were used in this investigation to dry sage in two seasons, namely August 2009 and March 2010 before flowering stage. Plants were dried in an Unglazed transpired passive solar dryer with 100% exposure to direct sun-rays, in a greenhouse dryer covered with shading cloth with 50% exposure to direct sun-rays, and with 0% sun-rays while the medicinal plants were protected from sun i.e. in shaded barn. Investigations were carried out under the environmental weather conditions of Ismailia, Egypt. The study revealed that sage can be dried at different times of the year even before the flowering stage of the plants.


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