The effects of elevated O2 alone or in combination with elevated CO2 atmospheres for postharvest decay control on strawberry fruit (Fragaria×ananassa Duch.) were assessed. In vitro and in vivo growth of Botrytis cinerea Pers.:Fr. and the effects on fruit quality were determined under eight atmospheres: air, 40, 60, 80, 90 and 100 kPa O2, 40 kPa O2+15 kPa CO2 and air+15 kPa CO2. The commercially...

Sulforaphane is a phytochemical that is usually found in cruciferous vegetables and is known to have a depressive effect on gastric cancer. Preliminary investigations showed that the sulforaphane concentration in broccoli (Brassica oleracea var. italica) florets increased under anoxia. Therefore, in the present study, we examined the effect of different atmospheric conditions on the sulforaphan...

Internal carotid blood flow, taken as an index of cerebral blood flow (CBF); arterial pressure; and respiratory O2 and CO2 concentrations, were measured in halothane (1%)-anesthetized, paralyzed and mechanically ventilated rabbits. CBF was determined at end-tidal CO2 of 4% (normocapnia) and 8%, as inspired O2 [O2]I) was varied stepwise over the range of 6.5 to 92%. Normocapnic CBF was constant ...

PURPOSE To create in vitro a model to generate acidosis by CO2 bubbling "organ chambers", which would be useful for researchers that aim to study the effects of acid-base disturbs on the endothelium-dependent vascular reactivity. METHODS Eighteen male Wistar rats (230-280 g) were housed, before the experiments, under standard laboratory conditions (12h light/dark cycle at 21°C), with free acc...

The effect of super atmospheric O2 and modified atmosphere packaging (MAP) on plant metabolism, organoleptic quality and microbial growth of minimally processed baby spinach was studied. Packaging film O2 transmission rates and initial levels of super atmospheric O2 in the packages significantly affected the changes of in-package atmospheres during storage, and consequently quality of baby spin...

Three infrared CO2 analyzers were tested for the effect of background gases: the Ametek CD-3A (Ametek, Thermox Instruments Division, Pittsburgh, PA), the Dräger Multiwarn P CO2 (Dräger, L ubeck, Germany), and the Servomex 1440 (Servomex, Crowborough, East Sussex, UK). Various CO2 concentrations were prepared with Wösthoff precision pumps (H. Wösthoff, Bochum, Germany). Calibration with a differ...

Garlic storage is important to provide product for fresh market and fresh peeled processing. Garlic bulbs (cv. California Late) and unpeeled cloves were stored in several experiments in air and CA (0.1, 0.5, 1% O2 in combination with 0, 5, 10, 15 and 20% CO2) at 0-1°C for up to 6 months. Quality changes, especially sprout growth, decay and discoloration, were reduced by CO2-containing atmospher...

Wearing face masks is essential for reducing infection during the COVID-19 pandemic. However, ordinary surgical can provide only moderate protection. The N95 should sufficient protection but may impose complaints about breathing difficulty or even impair respiratory health. This investigation proposed a novel mask modified from to improve both and comfort. filter material of was covered sealed ...

The edible mushroom Agrocybe chaxingu was stored in packages with or without silicon gum film windows in three different modified atmosphere systems (5% O2, with 5%, 10% and 15% CO2) at a temperature of 3± 1 ◦C. The results showed that there were significant differences between the packages with and without the silicon gum film windows on O2, CO2, and ethylene concentrations, respiration rate, ...

Photosynthesis produces chemical energy from photon energy in the photosynthetic electron transport and assimilates CO2 using the chemical energy. Thus, CO2 limitation causes an accumulation of excess energy, resulting in reactive oxygen species (ROS) which can cause oxidative damage to cells. O2 can be used as an alternative energy sink when oxygenic phototrophs are exposed to high light. Here...