The influences of storage temperature and modified O2 and CO2 concentrations in the atmosphere on the post-cutting life and quality of fresh-cut pineapple (Ananas comosus) were studied. Temperature was the main factor affecting post-cutting life, which ranged from 4 days at 10 ◦C to over 14 days at 2.2 and 0 ◦C. The end of post-cutting life was signaled by a sharp increase in CO2 production fol...

A study was performed to assess volatile and quality changes in stored fresh-cut mangos prepared from ‘‘firm-ripe’’ (FR) and ‘‘soft-ripe’’ (SR) fruit, and to assess what effect passive modified atmosphere packaging (MAP) may have on cut fruit physiology, overall quality and volatile retention or loss. Florida-grown ‘Keitt’ and ‘Palmer’ mangos were used, without heat-treatment. Subjective apprai...

This study explored the impacts of modified atmosphere packaging (MAP) treatment on proteolytic development and volatile compounds Domiati cheese during storage. samples were kept for 75 days at refrigerator temperature, under aerobic (C1) or vacuum (C2). In parallel, other MAP, different levels CO2 N2, as follows: 10% CO2/90% N2 (D1), 15% CO2/85% (D2), 25% CO2/75% (D3), 100% (D4), (D5). The no...

BACKGROUND Hyperbaric oxygenation (HBO) therapy is the administration of 100%-inhaled oxygen to patients at increased atmospheric pressure. MATERIALS AND METHODS We used an in vitro model to examine the effects of HBO on mammary cell proliferation. Normal mammary epithelia, primary tumor and metastatic tumor cells derived from the same patient and immortalized by transfection with the human p...

gaz is one of the traditional food products. ingredient of gaz has certain differences compared with other sweets & snacks, which in the preparation of them no oils, starch and flour is used. adverse color, taste and odor in gaz may has been created by oxidation in nuts at store condition. on the other hand, gaz becomes dry in inappropriate packaging at areas with low humidity and becomes soft ...

Gas exchange is governed by the combined action of oxygen consumption and carbon dioxide production, and the transport of these gasses by diffusion. The diffusion component is formally neglected and implicitly incorporated in respiration and fermentation parameters of the current Michealis-Menten-based respiration models. The aim was to extend existing modelling approaches by including a diffus...

The adsorption of common gas molecules (N2, CO, CO2, H2O, NH3, NO, NO2, and O2) on germanene is studied with density functional theory. The results show that N2, CO, CO2, and H2O are physisorbed on germanene via van der Waals interactions, while NH3, NO, NO2, and O2 are chemisorbed on germanene via strong covalent (Ge-N or Ge-O) bonds. The chemisorption of gas molecules on germanene opens a ban...

Andersson, A. 2017. Air-sea exchange of O2 and CO2. Processes controlling the transfer efficiency. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1471. 42 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 9789155498061. World oceans cover more than 70% of the earth surface and constitutes a major sink of atmospheric CO2. Two of the most impor...