saffron is the most important iranian non oil export. improper conditions of saffron flower storage increases microbial contamination and decreases saffron quality. this study was done for prolonging the shelf life of saffron flower in modified atmosphere packaging and subsequent to producing a new method for exporting the fresh saffron flower as cut flower. saffron flowers were packed in a pol...

this study was conducted to evaluate the effect of high co2 modified atmosphere packaging (map) on storage quality of ‘selva’ strawberry fruits. the statistical analysis carried out using factorial experiment by completely randomized design (crd) with three replications. treatments included cover in two levels (polyethylene and polyamide) and two different gas compositions (2% o2 + 15% co2 + 83...

in this paper, we examine the effects of thermal radiation on co2 emission and o2 depletion in an exothermic reactive slab of combustible materials with uniform surface temperature. the governing equations for the nonlinear heat and mass transfer problem are derived and solved numerically using runge-kutta-fehlberg method with shooting technique. numerical expressions for temperature field, co2...

table grapes (vitis vinifera l. cv. shahroodi) were stored for 45 days under modified atmospher packaging (map) with four gas combination treatments including gc1 (control or air), gc2 (10%co2+5%o2), gc3 (10%co2+15%o2) and gc4 (10%co2 + 60%o2) using two types of polymeric films pp (polypropylene) and pe (polyethylene) at 1oc and 80-90% rh. measurements were carried out after each 15 days at 1oc...

‘zaferani’ peach, an important native iranian fruit, is a highly perishable fruit of limited shelf life. in the present research, effects of modified atmosphere packaging with three gas combinations (5% co2 + 2% o2, 10% co2 + 2% o2 and air) and two packaging films (polypropylene and low density polyethylene (ldpe)) on physicochemical characteristics and shelf life of 'zaferani' peach ...

Seeking for baseline conditions has biased the atmospheric carbon dioxide (CO2) and later on also oxygen (O2) monitoring networks towards remote marine stations, missing part of the variability that is due to regional anthropogenic as well as land biotic activity. We present here a five-year record of atmospheric CO2 concentrations and oxygen/nitrogen (O2/N2) ratio measurements from the coastal...

Freshly harvested white asparagus (Asparagus of®cinalis L.) spears (about 500 g per package) were over-wrapped with a 16 mm stretch ®lm. Packages were kept at 2.58C, 58C, 108C, 158C, 208C and 258C under continuous darkness or light (15 1.9 W mÿ2) for 6 days. At all temperatures, an atmosphere of 4.5±6.9% CO2 and 3±6.7% O2 developed during the ®rst hour; after 8 h, CO2 increased to a maximum of ...

this research was carried out in order to investigate on the effects of packaging type and storage temperature on qualitative and quantitative characteristics of dried melon. “thashkandi” and ‘ khatoni” melon varieties؛ osmotic solutions of 0% and 10% sucrose and cabinet dryer were applied for dried melon production. dried fruits were packed with modified atmosphere (pe-pa film, 85 micron thick...

Cyanobacteria, algae, and plants oxidize water to the O2 we breathe, and consume CO2 during the synthesis of biomass. Although these vital processes are functionally and structurally well separated in photosynthetic organisms, there is a long-debated role for CO2/ in water oxidation. Using membrane-inlet mass spectrometry we demonstrate that acts as a mobile proton acceptor that helps to transp...