scholarly journals Microbial and Nutritional Stability of Pineapple Juice during Storage: Effect of Harmonized Thermal Pasteurization Technologies

2021 ◽  
Vol 9 (3) ◽  
pp. 82-89
Author(s):  
Flora J. Chadaré ◽  
Mênouwesso H. Hounhouigan ◽  
A. K. Carole Sanya ◽  
Méchak A. Gbaguidi ◽  
J. Dekpemadoha ◽  
...  
Keyword(s):  
Storage Effect ◽  
Pineapple Juice ◽  
Thermal Pasteurization

Self-forming dynamic membrane for ultrafiltration of pineapple juice

1997 ◽  
Vol 129 (1) ◽  
pp. 135-143 ◽  
Author(s):  
R. Jiraratananon ◽  
D. Uttapap ◽  
C. Tangamornsuksun
Keyword(s):  
Dynamic Membrane ◽  
Pineapple Juice

Optical storage effect in a platinum orthometalated liquid crystal

1998 ◽  
Vol 66 (3) ◽  
pp. 355-358 ◽  
Author(s):  
J. Buey ◽  
L. Díez ◽  
P. Espinet ◽  
H.-S. Kitzerow ◽  
J.A. Miguel
Keyword(s):  
Liquid Crystal ◽  
Optical Storage ◽  
Storage Effect

scholarly journals AlO6 clusters’ electric storage effect in amorphous alumina supercapacitors

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mikio Fukuhara ◽  
Tomoyuki Kuroda ◽  
Fumihiko Hasegawa ◽  
Toshiyuki Hashida ◽  
Mitsuhiro Takeda ◽  
...  
Keyword(s):  
Electron Beam ◽  
Coulomb Blockade ◽  
Density Functional ◽  
Electron Beam Irradiation ◽  
Oxide Surface ◽  
Storage Effect ◽  
Beam Irradiation ◽  
Original Length ◽  
Ragone Plot ◽  
Amorphous Alumina

AbstractIn this study, the electric storage effect of AlO6 clusters in amorphous alumina (AAO) supercapacitors was investigated in terms of cluster morphologies under electron-beam irradiation. Based on first-principles density functional calculation, the optimised structure of AlO6 clusters around an O-vacancy is characterised by a large vacant space created by the absence of an O atom and its neighbouring Al atom. The localised electrons present near the two-atomic vacancies induce positive charges on the inside of the insulating oxide surface, ensuring the adsorption of many electrons on the surface. Electron-beam irradiation (adsorption) from 100 to 180 keV causes the lengths of the Al–O bonds of the cluster to shrink, but then return to the original length with decreasing voltage energy, indicating a rocking-chair-type charge-breathing effect accompanied by a volume expansion of approximately 4%. The I–V and I–R characteristics depicted Coulomb blockade for the switching effect of both the negative and positive potentials. The Ragone plot of the AAO supercapacitor is located at capability area of the second cell.

Inactivation of Bacterial Pathogens in Human Milk by High-Pressure Processing†

2008 ◽  
Vol 71 (1) ◽  
pp. 109-118 ◽  
Author(s):  
S. VIAZIS ◽  
B. E. FARKAS ◽  
L. A. JAYKUS
Keyword(s):  
High Pressure ◽  
Human Milk ◽  
Capillary Tube ◽  
Bacterial Pathogens ◽  
High Pressure Processing ◽  
Viral Pathogens ◽  
Promising Alternative ◽  
Log Reduction ◽  
Long Time ◽  
Thermal Pasteurization

Low-temperature, long-time (LTLT) pasteurization assures the safety of banked human milk; however, heat can destroy important nutritional biomolecules. High-pressure processing (HPP) shows promise as an alternative for pasteurization of breast milk. The purpose of this study was to investigate the efficacy of HPP for inactivation of selected bacterial pathogens in human milk. Human milk was inoculated with one of five pathogens (108 to 109 CFU/ml), while 0.1% peptone solution solutions with the same levels of each organism were used as controls. The samples were subjected to 400 MPa at 21 to 31°C for 0 to 50 min or to 62.5°C for 0 to 30 min (capillary tube method) to simulate LTLT pasteurization. Tryptic soy agar and selective media were used for enumeration. Traditional thermal pasteurization resulted in inactivation (>7 log) of all pathogens within 10 min. In human milk and in peptone solution, a 6-log reduction was achieved after 30 min of HPP for Staphylococcus aureus ATCC 6538. After 30 min, S. aureus ATCC 25923 was reduced by 8 log and 6 log in human milk and peptone solution, respectively. Treatments of 4 and 7 min resulted in an 8-log inactivation of Streptococcus agalactiae ATCC 12927 in human milk and peptone solution, respectively, while Listeria monocytogenes ATCC 19115 required 2 min for an 8-log inactivation in human milk. Escherichia coli ATCC 25922 was inactivated by 8 log after 10 min in peptone solution and by 6 log after 30 min in human milk. These data suggest that HPP may be a promising alternative for pasteurization of human milk. Further research should evaluate the efficacy of HPP in the inactivation of relevant viral pathogens.

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