The effect of modified atmospheres on the rate of firmness change in ‘Braeburn’ apples

2001 ◽  
Vol 23 (3) ◽  
pp. 175-184 ◽  
Author(s):  
Maarten L.A.T.M Hertog ◽  
Sue E Nicholson ◽  
Nigel H Banks
Keyword(s):  
Modified Atmospheres

Gamma-hydroxybutyrate accumulates in green tea and soybean sprouts in response to oxygen deficiency

2003 ◽  
Vol 83 (4) ◽  
pp. 951-953 ◽  
Author(s):  
W. L Allan ◽  
C. Peiris ◽  
A. W. Bown ◽  
B. J. Shelp
Keyword(s):  
Key Words ◽  
Human Health ◽  
Green Tea ◽  
Illicit Drug ◽  
Oxygen Deficiency ◽  
Fresh Weight ◽  
Modified Atmospheres ◽  
Soybean Sprouts ◽  
Gamma Hydroxybutyrate ◽  
Bean Sprouts

Gamma-hydroxybutyrate (GHB) is an illicit drug, which may be derived in plants from a stress-inducible metabolite known as gamma-aminobutyrate. Here, oxygen deficiency caused the accumulation of GHB in green tea and soybean sprouts (76 and 155 nmol g-1 fresh weight, respectively). These findings demonstrate that GHB levels are elevated in severely modified atmospheres, but they pose no risk to human health. Further work is required to assess the extent of this phenomenon. Key words: Gamma-hydroxybutyrate, gamma-aminobutyrate, oxygen deficiency, tea, bean sprouts

scholarly journals Impact of the Resistance Responses to Stress Conditions Encountered in Food and Food Processing Environments on the Virulence and Growth Fitness of Non-Typhoidal Salmonellae

Foods ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 617
Author(s):  
Silvia Guillén ◽  
Laura Nadal ◽  
Ignacio Álvarez ◽  
Pilar Mañas ◽  
Guillermo Cebrián
Keyword(s):  
Stress Resistance ◽  
Food Processing ◽  
Current Knowledge ◽  
Foodborne Pathogen ◽  
Stress Conditions ◽  
Bacterial Cells ◽  
Modified Atmospheres ◽  
Development Of Resistance ◽  
Salmonella Virulence ◽  
Short Time

The success of Salmonella as a foodborne pathogen can probably be attributed to two major features: its remarkable genetic diversity and its extraordinary ability to adapt. Salmonella cells can survive in harsh environments, successfully compete for nutrients, and cause disease once inside the host. Furthermore, they are capable of rapidly reprogramming their metabolism, evolving in a short time from a stress-resistance mode to a growth or virulent mode, or even to express stress resistance and virulence factors at the same time if needed, thanks to a complex and fine-tuned regulatory network. It is nevertheless generally acknowledged that the development of stress resistance usually has a fitness cost for bacterial cells and that induction of stress resistance responses to certain agents can trigger changes in Salmonella virulence. In this review, we summarize and discuss current knowledge concerning the effects that the development of resistance responses to stress conditions encountered in food and food processing environments (including acid, osmotic and oxidative stress, starvation, modified atmospheres, detergents and disinfectants, chilling, heat, and non-thermal technologies) exerts on different aspects of the physiology of non-typhoidal Salmonellae, with special emphasis on virulence and growth fitness.

Effects of high-oxygen, carbon monoxide modified atmospheres and vacuum packaging on quality of Longissimus thoracis et lumborum steaks from Nellore cows during ageing

2021 ◽  
Vol 143 ◽  
pp. 110226
Author(s):  
Priscila R. dos Santos-Donado ◽  
Carlos M. Donado-Pestana ◽  
Francisco A. Ossamu Tanaka ◽  
Anna C. Venturini ◽  
Eduardo Francisquine Delgado ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Vacuum Packaging ◽  
High Oxygen ◽  
Modified Atmospheres
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