Influence of water activity and temperature on growth and fumonisin production by Fusarium proliferatum strains on irradiated wheat grains

2018 ◽  
Vol 266 ◽  
pp. 158-166 ◽  
Author(s):  
Eugenia Cendoya ◽  
María del Pilar Monge ◽  
Stella Maris Chiacchiera ◽  
María Cecilia Farnochi ◽  
María Laura Ramirez
Keyword(s):  
Water Activity ◽  
Fusarium Proliferatum ◽  
Wheat Grains ◽  
Influence Of Water

Influence of Water Activity on Thermal Resistance of Microorganisms in Low-Moisture Foods: A Review

2016 ◽  
Vol 15 (2) ◽  
pp. 353-370 ◽  
Author(s):  
Roopesh M. Syamaladevi ◽  
Juming Tang ◽  
Rossana Villa-Rojas ◽  
Shyam Sablani ◽  
Brady Carter ◽  
...  
Keyword(s):  
Thermal Resistance ◽  
Water Activity ◽  
Influence Of Water ◽  
Low Moisture Foods

scholarly journals Influence of Water Activity on Protease Adsorbed on Biochar in Organic Solvents

2017 ◽  
Vol 6 (4) ◽  
pp. 96 ◽  
Author(s):  
Hidetaka Noritomi ◽  
Jumpei Nishigami ◽  
Nobuyuki Endo ◽  
Satoru Kato ◽  
Katsumi Uchiyama
Keyword(s):  
Thermal Stability ◽  
Catalytic Activity ◽  
Organic Solvents ◽  
Water Activity ◽  
Initial Rate ◽  
Butyl Ester ◽  
Nitrogen Atmosphere ◽  
Bamboo Charcoal ◽  
Influence Of Water ◽  
Hydrolysis Of

We have found that the organic solvent-resistance of Alpha-chymotrypsin (Alpha-CT) is enhanced by adsorbing Alpha-CT onto bamboo charcoal powder (BCP), which is obtained by pyrolyzing bamboo waste under nitrogen atmosphere, and is markedly dependent on the thermodynamic water activity (aw) in organic solvents. When BCP-adsorbed　Alpha-CT was immersed in acetonitrile at an appropriate water activity, it effectively enhanced the transesterification of N-acetyl-L-tyrosine ethyl ester (N-Ac-Tyr-OEt) with n-butanol (BuOH) to produce N-acetyl-L-tyrosine butyl ester (N-Ac-Tyr-OBu), compared to the hydrolysis of N-Ac-Tyr-OEt with water to give N-acetyl-L-tyrosine (N-Ac-Tyr-OH). When the water activity was 0.28, the initial rate of transesterification catalyzed by BCP-adsorbed Alpha-CT was about sixty times greater than that catalyzed by free Alpha-CT. Regarding the reaction selectivity which is defined as a ratio of the initial rate of transesterification to that of hydrolysis, BCP-adsorbed α-CT was much superior to free Alpha-CT. The catalytic activity of BCP-adsorbed Alpha-CT was markedly dependent on the reaction temperature. Furthermore, concerning the thermal stability at 50 oC, the half-life of BCP-adsorbed Alpha-CT exhibited 3.8-fold, compared to that of free Alpha-CT.

scholarly journals Influence of Water Activity on the Amount of Adenosine Triphosphate(ATP) of Bacteria by Bioluminescence.

1999 ◽  
Vol 16 (3) ◽  
pp. 201-204
Author(s):  
Youichi ONOUE ◽  
Hisako TATSUGUCHI ◽  
Ichiro FURUKAWA ◽  
Hiroshi TERANISHI ◽  
Yukie HASEGAWA
Keyword(s):  
Water Activity ◽  
Adenosine Triphosphate ◽  
Influence Of Water

Influence of Water Activity and System Mobility on Peroxidase Activity in Maltodextrin Solutions

2011 ◽  
Vol 6 (2) ◽  
pp. 281-287 ◽  
Author(s):  
Lilia Neri ◽  
Paola Pittia ◽  
Gianni Bertolo ◽  
Danila Torreggiani ◽  
Giampiero Sacchetti
Keyword(s):  
Water Activity ◽  
Peroxidase Activity ◽  
Influence Of Water

scholarly journals Influence of water activity and dry-heating time on egg white powders quality

LWT ◽  
2021 ◽  
Vol 140 ◽  
pp. 110717
Author(s):  
Marco E. Pérez-Reyes ◽  
Juming Tang ◽  
Gustavo V. Barbosa-Cánovas ◽  
Mei-Jun Zhu
Keyword(s):  
Water Activity ◽  
Egg White ◽  
Heating Time ◽  
Influence Of Water ◽  
Dry Heating
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