Global ETD Search
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Showing 1 to 4 of 4 for “"headspace oxygen"”.
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Murine embryonic stem cells and hypoxia : growth kinetics, metabolism, and plating efficiency
… Growing stem cells in an environment with higher oxygen levels (i.e. the atmospheric oxygen levels that are normally used to cultivate stem cells) could be bad for the cells, as oxygen is toxic due to its powerful oxidative capacity. In this experiment, J1 murine embryonic stem cells were grown at …
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Antioxidant Activity of Ampelopsis Grossedentata Crude Extract and its Major Component Dihydromyricetin
… peroxide value, anisidine value, Totox value, headspace volatiles and headspace oxygen. Antioxidant effectiveness was also evaluated in a cooked beef model system. DHM was more potent than BHA in preventing soybean oil oxidation. The crude extract was not as effective as BHA and DHM, possibly …
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Controls on nitrogen fixation and nitrogen release in a diazotrophic endosymbiont of shipworms
… because N2-fixation is tightly regulated by oxygen in most other diazotrophic microbes. Also, the direct evidence of new N being incorporated into the host tissue indicates that there are potentially complex nutrient cycles in this symbiosis, which have not been investigated. We used the …
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Characterization and Application of Peanut Root Extracts
… add antioxidants or purge a product's package of oxygen to inhibit oxidation and the resulting off-flavors. Synthetic antioxidants (e.g. BHT, BHA) and some natural antioxidants (e.g. α-tocopherol) have found widespread use in this application. Unfortunately, the public views synthetic additives in …