Thermokinetic and conductivity analyzes of the high CO2 chemisorption on Li5AlO4 and alkaline carbonate impregnated Li5AlO4 samples: Effects produced by the use of CO2 partial pressures and oxygen addition

This work entails a comprehensive solid-state NMR and computational study of the influence of water and CO2 partial pressures on the CO2-adducts formed in amine-grafted silica sorbents. Our approach provides...

Download Full-text

Study of the direct sulfation of limestone particles at high CO2 partial pressures

Fuel Processing Technology ◽

10.1016/0378-3820(94)90047-7 ◽

1994 ◽

Vol 38 (3) ◽

pp. 181-192 ◽

Cited By ~ 31

Author(s):

A.B. Fuertes ◽

G. Velasco ◽

E. Fuente ◽

T. Alvarez

Keyword(s):

High Co2 ◽

Partial Pressures

Download Full-text

QUALITY PRESERVATION OF ‘LAETITIA’ PLUMS IN ACTIVE MODIFIED ATMOSPHERE STORAGE

Revista Brasileira de Fruticultura ◽

10.1590/0100-29452017714 ◽

2017 ◽

Vol 39 (2) ◽

Cited By ~ 4

Author(s):

MAYARA CRISTIANA STANGER ◽

CRISTIANO ANDRÉ STEFFENS ◽

CASSANDRO VIDAL TALAMINI DO AMARANTE ◽

AURI BRACKMANN ◽

ROGÉRIO OLIVEIRA ANESE

Keyword(s):

Cold Storage ◽

Fruit Ripening ◽

Modified Atmosphere ◽

Lower Intensity ◽

High Co2 ◽

Ldpe Film ◽

Partial Pressures ◽

Modified Atmosphere Storage ◽

Internal Browning ◽

Atmosphere Storage

ABSTRACT Recent studies have shown that passive modified atmosphere storage (MA) delays the ripening of ‘Laetitia’ plums but it increases the incidence of internal browning in comparison to cold storage (CS), possibly due to high CO2 and/or ethylene accumulation inside the package. The aim of this study was to evaluate the effect of active MA conditions [LDPE film (40 µm)] with CO2 absorber combined with low ethylene (LE) on ripening and quality preservation of ‘Laetitia’ plums during storage at 0.5ºC±0.1ºC and RH of 96%±2%. The treatments evaluated were cold storage (CS; 21.0 kPa O2 + <0.03 kPa CO2); nonperforated MA with CO2 absorber; non-perforated MA with CO2 absorber and LE; perforated MA (with two perforations with diameter = 0.5 mm) with CO2 absorber; and perforated MA with CO2 absorber and LE. The partial pressures of O2 + CO2 (kPa) were 1.2 + <0.1 and 2.8 + <0.1, in non-perforated and perforated MA, respectively. Active MA, mainly non-perforated package, with CO2 absorber and LE, delayed fruit ripening, but did not reduce the incidence of internal breakdown in ‘Laetitia’ plums cold stored for 60 days. Fruits in active MA, with perforated or non-perforated package, with CO2 absorber and LE, showed lower intensity of internal breakdown than CS.

Download Full-text

High CO2 Chemisorption in α-Li5AlO4 at Low Temperatures (30–80 °C): Effect of the Water Vapor Addition

Energy & Fuels ◽

10.1021/ef3004416 ◽

2012 ◽

Vol 26 (5) ◽

pp. 3110-3114 ◽

Cited By ~ 26

Author(s):

Tatiana L. Ávalos-Rendón ◽

Heriberto Pfeiffer

Keyword(s):

Water Vapor ◽

Low Temperatures ◽

High Co2 ◽

Co2 Chemisorption

Download Full-text

Confirmation of mesophyll signals controlling stomatal responses by a newly devised transplanting method

Functional Plant Biology ◽

10.1071/fp18250 ◽

2019 ◽

Vol 46 (5) ◽

pp. 467 ◽

Cited By ~ 2

Author(s):

Takashi Fujita ◽

Ko Noguchi ◽

Hiroshi Ozaki ◽

Ichiro Terashima

Keyword(s):

Stomatal Closure ◽

Stomatal Opening ◽

High Co2 ◽

Low Co2 ◽

Stomatal Responses ◽

Partial Pressures ◽

Stomatal Guard Cells ◽

Molecular Sizes ◽

Dialysis Membranes ◽

Ambient Co2

There are opposing views on whether the responses of stomata to environmental stimuli are all autonomous reactions of stomatal guard cells or whether mesophyll is involved in these responses. Transplanting isolated epidermis onto mesophyll is a potent methodology for examining the roles of mesophyll-derived signals in stomatal responses. Here we report on development of a new transplanting method. Leaf segments of Commelina communis L. were pretreated in the light or dark at 10, 39 or 70Pa ambient CO2 for 1h. Then the abaxial epidermises were removed and the epidermal strips prepared from the other leaves kept in the dark at 39Pa CO2, were transplanted onto the mesophyll. After illumination of the transplants for 1h at 39Pa CO2, stomatal apertures were measured. We also examined the molecular sizes of the mesophyll signals by inserting the dialysis membrane permeable to molecules smaller than 100–500Da or 500–1000Da between the epidermis and mesophyll. Mesophyll pretreatments in the light at low CO2 partial pressures accelerated stomatal opening in the transplanted epidermal strips, whereas pretreatments at 70Pa CO2 suppressed stomatal opening. Insertion of these dialysis membranes did not suppress stomatal opening significantly at 10Pa CO2 in the light, whereas insertion of the 100–500Da membrane decelerated stomatal closure at high CO2. It is probable that the mesophyll signals inducing stomatal opening at low CO2 in the light would permeate both membranes, and that those inducing stomatal closure at high CO2 would not permeate the 100–500Da membrane. Possible signal compounds are discussed.

Download Full-text

Thermodynamics and kinetics analyses of high CO2 absorption properties of Li3NaSiO4 under various CO2 partial pressures

Dalton Transactions ◽

10.1039/d1dt00531f ◽

2021 ◽

Vol 50 (15) ◽

pp. 5301-5310

Author(s):

Manami Hirai ◽

Eiki Niwa ◽

Takuya Hashimoto

Keyword(s):

Co2 Absorption ◽

Absorption Kinetics ◽

Absorption Properties ◽

High Co2 ◽

Thermodynamics And Kinetics ◽

Partial Pressures

The temperature and P(CO2) region for the reaction between Li3NaSiO4 and CO2 is similar to that of Li4SiO4. However, Li3NaSiO4 shows higher CO2 absorption kinetics.

Download Full-text