scholarly journals Antioxidative Peptides Derived from Enzyme Hydrolysis of Bone Collagen after Microwave Assisted Acid Pre-Treatment and Nitrogen Protection

2010 ◽  
Vol 11 (11) ◽  
pp. 4297-4308 ◽  
Author(s):  
Yun-Jian Lin ◽  
Guo-Wei Le ◽  
Jie-Yun Wang ◽  
Ya-Xin Li ◽  
Yong-Hui Shi ◽  
...  
Author(s):  
Marcin Lukasiewicz ◽  
Anna Osowiec ◽  
Magdalena Marciniak

1969 ◽  
Vol 61 (1_Suppl) ◽  
pp. S219
Author(s):  
Carl Beling ◽  
Ronald Stark

2018 ◽  
Vol 17 (4) ◽  
pp. 349-354
Author(s):  
Qadir Rahman ◽  
Anwar Farooq ◽  
Amjad Gilani Mazhar ◽  
Nadeem Yaqoob Muhammad ◽  
Ahmad Mukhtar

This study investigates the effect of enzyme formulations (Zympex-014, Kemzyme dry-plus and Natuzyme) on recovery of phenolics from Peganum hermala (harmal) leaves, under optimized conditions using response surface methodology. As compared to the other enzyme complexes, the yield (34 g/100g) obtained through Zympex-014-assisted extraction was higher under optimized conditions such as time (75 min), temperature (70°C), pH (6.5) and enzyme concentration (5 g/100 g) using central composite design (CCD). Effectiveness of Zympex-014 towards hydrolysis of P. hermala leaves cell wall was examined by analyzing the control and enzyme-treated leave residues using scanning electron microscope (SEM). GC/MS characterization authenticated the presence of quercetin (1.44), gallic acid (0.23), caffeic acid (0.04), cinnamic acid (0.05), m-coumaric acid (0.23) and p-coumaric acid (0.37 μg/g) as the potent phenolics in Zympex-014 based extract. It can be concluded from the findings of the current work that pre-treatment of P. hermala leaves with Zympex-014 significantly enhanced the recovery of phenolics that supports its potential uses in the nutra-pharamaceutical industry.


2019 ◽  
Vol 37 (No. 4) ◽  
pp. 246-251 ◽  
Author(s):  
Joanna Tkaczewska ◽  
Maciej Wielgosz ◽  
Piotr Kulawik ◽  
Marzena Zajac

The influence of drying temperature on the characteristics and gel properties of gelatine from Cyprinus carpio L. skin was studied. Gelatine was extracted from the carp skin using NaOH and ethanol pre-treatment method, extracted in water in 45°C and then dried in 4 different temperatures: 50, 70, 80°C and freeze-dried. The  electrophoresis and functional properties of gelatines were investigated. Freeze drying allowed to obtain a high gelling force, and all other methods did not give satisfactory results. The proteins in gelatines dried at higher temperatures separated by electrophoresis gave severely blurred bands. It may be explained by thermal hydrolysis of collagen fibrils. Freeze drying is the only effective method for drying this product, which can be used in industry.


2012 ◽  
Vol 14 (8) ◽  
pp. 2282 ◽  
Author(s):  
Petr Jansa ◽  
Ondřej Baszczyňski ◽  
Eliška Procházková ◽  
Martin Dračínský ◽  
Zlatko Janeba

2011 ◽  
Vol 62 (8) ◽  
pp. 851-856 ◽  
Author(s):  
Hongcheng Liu ◽  
Ying Zhang ◽  
Bin Zheng ◽  
Qiwan Li ◽  
Yanhong Zou

2013 ◽  
Vol 31 (16) ◽  
pp. 1960-1968 ◽  
Author(s):  
Ashutosh Singh ◽  
Gopu Raveendran Nair ◽  
Jamshid Rahimi ◽  
Yvan Gariepy ◽  
Vijaya Raghavan

2015 ◽  
Vol 670 ◽  
pp. 177-182
Author(s):  
Alexey A. Sadovnikov ◽  
Alexander E. Baranchikov ◽  
Vladimir Kozik ◽  
Lyudmila P. Borilo ◽  
Sergey A. Kozyukhin ◽  
...  

Microwave-assisted high temperature hydrolysis of titanium oxysulfate, in the presence of ammonium fluoride, allows synthesizing nanocrystalline titanium dioxide photocatalysts possessing photocatalytic activity as high as the commercial photocatalyst Evonik Aeroxide® TiO2 P 25. Dye-sensitized reactions play an important role in organic dye discoloration in the presence of fluorinated titania.


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